JP2017046428A - Power interchange system - Google Patents

Abstract

A power interchange system capable of realizing power interchange in accordance with the actual situation in consideration of the amount of power generated by a solar power generation device is provided. SOLUTION: Between a plurality of photovoltaic power generators having a solar panel provided in a plurality of apartment houses 110A to 110G and installed in a manner corresponding to each of the apartment houses 110A to 110G, and a plurality of apartment houses 110A to 110G And a control device 60 that controls the distribution direction of the power when accommodating the power in the control device 60, the control device 60 predicts the power generation amount of the plurality of solar power generation devices in advance and based on the prediction result, The priority order of power interchange is set for the plurality of apartment houses 110A to 110G, and when the power is interchanged between the plurality of apartment houses 110A to 110G, the apartment house and the interchange serving as the power interchange source based on the priority order An apartment house as a destination is set, and the electric power of the photovoltaic power generation device provided in the apartment house as a source of accommodation is accommodated in the apartment house as an accommodation destination. [Selection] Figure 2

Description

  The present invention relates to a technology of a power accommodation system that accommodates power between a plurality of buildings.

  2. Description of the Related Art Conventionally, a technology of an electric power accommodation system for accommodating electric power between a plurality of buildings has been publicly known. For example, as described in Patent Document 1.

  The power interchange system described in Patent Literature 1 determines the amount of accommodation or shortage based on the storage battery provided in each of a plurality of buildings (housing), the result of predicting the amount of power used in the building, and the storage amount of the storage battery. And determining means and a control device for accommodating power from a building having a large amount of accommodation to a building having a large amount of deficiency.

Japanese Patent No. 5481080

  The building described in Patent Document 1 includes a solar power generation device (solar cell). In the building, if the amount of power generated by the solar power generation device is large, the power is likely to be excessive, and if the amount of power generated by the solar power generation device is small, the power is likely to be insufficient. However, the determination means described in Patent Document 1 determines the accommodation amount (or the shortage amount) without considering the power generation amount of such a solar power generation device. For this reason, there is a possibility that power cannot be appropriately accommodated from a building where power is likely to be excessive to a building where power is likely to be insufficient.

  The present invention has been made in view of the situation as described above, and the problem to be solved is to provide a power interchange system capable of performing power interchange in accordance with the actual situation in consideration of the power generation amount of the solar power generation device. To do.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, a power accommodation system capable of accommodating power between a plurality of buildings, wherein the plurality of photovoltaic power generation devices are provided in the plurality of buildings and have solar panels installed in a manner corresponding to each building; A control device that controls a flow direction of power when accommodating power between the plurality of buildings, and the control device predicts the power generation amount of the plurality of photovoltaic power generation devices in advance and performs the prediction. Based on the result, the priority order of power accommodation is set for the plurality of buildings, and when power is accommodated between the plurality of buildings, the building and the accommodation destination that become the power accommodation source based on the priority order The building to be used is set, and the electric power of the solar power generation device provided in the building to be used as the accommodation source is accommodated to the building as the accommodation destination.

The control device sets the priority order in descending order of the predicted power generation amount, preferentially sets the higher priority building as the accommodation source, and preferentially configures the lower priority building as the accommodation destination. It is good also as setting to.
With such a configuration, power interchange can be performed in accordance with the actual situation in consideration of the power generation amount of the solar power generation device.

The said control apparatus is good also as correct | amending the said priority according to at least any one of a time slot | zone or the weather.
With such a configuration, it is possible to perform power interchange according to the actual situation in consideration of the time zone and the weather.

A plurality of power storage devices provided in the plurality of buildings; and a power storage amount detecting means for detecting a power storage amount of the plurality of power storage devices and inputting an acquisition result of the power storage amount to the control device, The said control apparatus is good also as correct | amending the said priority based on the input result of the said storage amount.
With such a configuration, power interchange can be performed in accordance with the actual situation in consideration of the amount of stored electricity.

In addition to detecting the power consumption for each building, the system further includes power consumption detection means for inputting the detection result of the power consumption to the control device, and the control device includes statistics of the input result of the power consumption. The priority order may be corrected based on the value.
With such a configuration, power interchange can be performed in accordance with the actual situation in consideration of the amount of power used.

When a power failure occurs in some of the plurality of buildings, the control device accommodates the power of the solar power generation device of another building where the power failure has not occurred to the some buildings. It is good as well.
With such a configuration, even when a power failure occurs, power can be continuously supplied to some buildings.

  Power interchange can be performed in accordance with the actual situation in consideration of the power generation amount of the solar power generation device.

The top view of an apartment house. The block diagram which showed the structure of the electric power interchange system which concerns on one Embodiment of this invention. The block diagram which showed the structure of the apartment house. The block diagram which showed the distribution direction of the electric power when charging an electrical storage apparatus. (A) The schematic diagram which arranged the apartment house in order of priority. (B) The schematic diagram which showed the housing complex which needs to accommodate electric power. (C) The schematic diagram which showed a mode that the electric power was accommodated. The schematic diagram which showed the mode in the housing complex used as the power interchange origin. The schematic diagram which showed the mode of the electric power interchange in case a power failure generate | occur | produces. The block diagram which showed the structure of the electric power interchange system which comprises a hybrid power conditioner.

  Below, the power interchange system 1 which concerns on one Embodiment of this invention is demonstrated.

  Below, the outline | summary of the smart city 100 which comprises the power interchange system 1 which concerns on 1st embodiment is demonstrated using FIG.1 and FIG.2.

  The smart city 100 is a city built for the purpose of effective use of energy. The smart city 100 according to the present embodiment is assumed to be a residential block mainly composed of a plurality of apartment houses. The smart city 100 can interchange energy (mainly power) between installed buildings and devices. The smart city 100 is provided with apartment houses 110A to 110G.

  The apartment houses 110A to 110G are buildings in which a plurality of households can move into a plurality of exclusive sections provided inside. A plurality of housing complexes 110 </ b> A to 110 </ b> G are built along the road R. The roofs 111 (mountain gable roofs) of the apartment houses 110A to 110G are different from each other in direction and size. Solar cell panels 11 to be described later are laid on the roof 111 of the apartment houses 110A to 110G according to the present embodiment. The apartment houses 110A to 110G are electrically connected to each other via a control device 60 and the like which will be described later. The apartment houses 110A to 110G include a common section 112 (see FIG. 3). In addition, the common use part 112 of collective housing 110A-110G is the mutually substantially the same structure. For this reason, below, only the common part 112 of the apartment house 110A will be described, and the description of the common part 112 of the other apartment houses 110B to 110G will be omitted.

  The common part 112 shown in FIG. 3 is a part used in common by residents of the apartment house 110A, specifically, a corridor, a staircase, an elevator, and the like. Electric power from the commercial power supply 70 is supplied to the load 112a of the shared unit 112 via the distribution line L1. The load 112a of the common unit 112 includes electrical equipment (elevator, door with auto lock, etc.) in the apartment house 110A, a common light, a pump installed outdoors, and the like.

  Next, the configuration of the power interchange system 1 will be described.

  As shown in FIGS. 2 and 3, the power interchange system 1 includes a solar power generation device 10, a power storage device 20, a trading power meter 30, a shared power meter 40, a power control device 50, a control device 60, and the like. . The solar power generation device 10, the power storage device 20, the trading power meter 30, the common unit power meter 40, and the power control device 50 are provided in the same manner in the apartment houses 110A to 110G, respectively. Therefore, hereinafter, only the solar power generation device 10, the power storage device 20, the buying and selling power meter 30, the common unit power meter 40, and the power control device 50 provided in the apartment house 110A will be described.

  The solar power generation device 10 is a device that generates power using sunlight. The solar power generation device 10 is disposed between the shared unit 112 and the commercial power source 70. The solar power generation device 10 includes a solar battery panel 11, a power conditioner 12, and the like.

  The solar cell panel 11 is configured by attaching a plurality of solar cells to a frame. The solar cell panel 11 generates electric power when sunlight hits the solar cell. As shown in FIG. 1, the solar cell panel 11 is laid on a sunny place, in this embodiment, on the roof 111 of the apartment house 110A. Moreover, the solar cell panel 11 is laid on about 80% of the sunny surface (surface facing south, southeast, or southwest) of the roof 111.

  The power conditioner 12 shown in FIG. 3 converts the DC power generated by the solar cell panel 11 into AC power. The power conditioner 12 is arrange | positioned in the middle part of the distribution line L2 through which the electric power generated with the solar cell panel 11 distribute | circulates. The power conditioner 12 is electrically connected to the solar cell panel 11 via the distribution line L2. Further, the power conditioner 12 is electrically connected to the load 112a of the common unit 112 and the commercial power supply 70 via the distribution lines L1 and L2.

  The power storage device 20 is a device configured to be able to charge and discharge power from the solar power generation device 10 and the commercial power source 70. The power storage device 20 includes a storage battery composed of a lithium ion battery or a nickel metal hydride battery that can charge and discharge power, a charger that rectifies supplied AC power and charges the storage battery, and direct current power from the storage battery. An inverter for converting to AC power and outputting it is provided.

  In addition, the power storage device 20 includes a control unit 21. The control unit 21 controls the charger, the inverter, and the like. The control unit 21 is mainly configured by an arithmetic processing device such as a CPU, a storage device such as a RAM and a ROM, an input / output device such as a touch panel, and the like. The control unit 21 is built in the power storage device 20. The control unit 21 can acquire information about the power charged / discharged in the power storage device 20.

  The power storage device 20 is disposed between the shared unit 112 and the commercial power supply 70. In addition, the power storage device 20 is electrically connected to the solar power generation device 10, the load 112 a of the common unit 112, and the commercial power supply 70 via a distribution line L <b> 3 connected to the power control device 50 described later. Such a power storage device 20 is installed in the vicinity of a distribution board provided in the shared unit 112, for example.

  The electric power sales / purchase meter 30 is supplied from the commercial power source 70 to the power storage device 20 and the load 112a of the common unit 112 (power to be purchased), and the electric power is reversely flowed from the solar power generation device 10 to the commercial power source 70. (Power to be sold) is detected. The trading power meter 30 is provided in the middle of the distribution line L1. The detection result of the trading power meter 30 is a value (positive value) greater than 0 W when the power supplied from the commercial power supply 70 to the power storage device 20 or the load 112a of the shared unit 112 is detected. In addition, the detection result of the trading power meter 30 is a value (negative value) smaller than 0 W when power flowing backward to the commercial power source 70 is detected.

  The shared unit power meter 40 detects the amount of power supplied to the load 112a of the shared unit 112. The shared unit power meter 40 is provided in the shared unit 112.

  The power control device 50 controls the distribution direction of power in the apartment house 110A. The power control device 50 is provided in the middle of the distribution line L <b> 1 and is disposed between the trading power meter 30 and the common unit 112. The power control device 50 is electrically connected to the photovoltaic power generation device 10, the power storage device 20, the commercial power supply 70, and the load 112 a of the common unit 112 via the distribution lines L <b> 1 to L <b> 3 and the like. The power control device 50 controls the distribution direction of power by the control device 60 to be described later, thereby switching the distribution direction of the power generated by the solar power generation device 10, thereby using the generated power of the shared unit 112. The power can be supplied to the load 112 a, supplied to the power storage device 20 for charging the power storage device 20, or reversely flowed to the commercial power source 70. Further, the power control device 50 switches the direction of the power flowing through the distribution line L3, thereby charging the power storage device 20 with power from the commercial power supply 70 or using the power discharged from the power storage device 20 in the shared unit 112. It can be supplied to the load 112a.

  The control device 60 controls power interchange between the apartment houses 110A to 110G. As shown in FIGS. 2 and 3, the control device 60 includes a power accommodation device 61 and an information management device 62.

  The electric power accommodation apparatus 61 controls the distribution direction of electric power between the apartment houses 110A to 110G. The power accommodation device 61 is electrically connected to the power control device 50 via the distribution line L4. The power interchange device 61 is electrically connected to the housing complexes 110A to 110G via a predetermined distribution line or the like. The power interchange device 61 circulates power from one apartment house (for example, the apartment house 110A) to another apartment house (for example, the apartment house 110B) by switching the power distribution direction (for one apartment house). Electricity can be accommodated to other housing complexes).

  The information management device 62 manages information in the power accommodation system 1 (for example, the capacity of the power storage device 20) and supplies power in the power accommodation system 1 (for example, the direction of power distribution and the power storage device 20. Charge / discharge timing, etc.) and power interchange between the apartment houses 110A to 110G. The information management device 62 includes an arithmetic processing device such as a CPU, a storage device such as a RAM and a ROM, an output device such as a liquid crystal display, and an input device such as a keyboard. The storage device of the information management device 62 stores in advance information on the power supply mode and the power interchange, the power supply mode, a program for implementing the power interchange, and the like.

Information management device 62 is electrically connected to control unit 21 of power storage device 20. A signal related to the amount of power stored in the power storage device 20 is input from the control unit 21 to the information management device 62. Further, the information management device 62 can control the operation of the power storage device 20 (charging / discharging of power) by inputting a predetermined signal to the control unit 21.
The information management device 62 is electrically connected to the trading power meter 30. A signal related to the detection result of the trading power meter 30 is input to the information management device 62.
The information management device 62 is electrically connected to the common unit power meter 40. A signal related to the detection result of the shared unit power meter 40 is input to the information management device 62.
The information management device 62 is electrically connected to the power control device 50. The information management device 62 can control the power control device 50 (the direction of power distribution in the apartment houses 110 </ b> A to 110 </ b> G) by inputting a predetermined signal to the power control device 50.
The information management device 62 is electrically connected to the power interchange device 61. The information management device 62 can control the power accommodation device 61 (the direction of power distribution between the housing complexes 110 </ b> A to 110 </ b> G) by inputting a predetermined signal to the electricity accommodation device 61.

  Next, a power supply mode (mode) to the load 112a of the shared unit 112 in the power interchange system 1 configured as described above will be described. In the following, for convenience of explanation, power supply to the load 112a of the common unit 112 of the apartment house 110A will be described.

  The power interchange system 1 has a power sale mode and an eco mode as power supply modes. The control device 60 executes the program stored in the storage device of the information management device 62 by the arithmetic processing device, thereby controlling the distribution direction of power according to the eco mode and the power purchase mode. The power sale mode and the eco mode are configured such that the owner of the apartment house 110A can arbitrarily select, for example.

  The power sale mode is a mode for the purpose of selling the power generated by the solar power generation device 10 (to obtain a monetary profit by causing a reverse flow to the commercial power source 70 as much as possible).

  When the power sale mode is selected, the information management device 62 of the control device 60 controls the control unit 21 and the power control device 50 of the power storage device 20, thereby setting a preset time zone (for example, a low power charge). The power storage device 20 is charged with electric power from the commercial power supply 70 in the midnight time zone. In addition, by controlling the power control device 50 according to an instruction from the information management device 62, the power from the commercial power supply 70 is also supplied to the load 112 a of the shared unit 112. Thereby, the electric equipment of the shared part 112 such as an elevator can be operated.

  In the power sale mode, the power control device 50 is controlled by an instruction from the information management device 62 of the control device 60, whereby the power storage device 20 is discharged in the daytime or night time zone. Thereby, the electric power charged with the electric power from the commercial power supply 70 is supplied to the load 112a of the shared unit 112. At this time, by controlling the power control device 50 in accordance with an instruction from the information management device 62, the power purchased from the commercial power supply 70 is about 100 W so that the power discharged from the power storage device 20 is not sold. The supplied power is also supplied to the load 112a of the shared unit 112.

  In addition, by controlling the power control device 50 according to an instruction from the information management device 62 of the control device 60, the power generated by the solar power generation device 10 during the daytime is supplied to the load 112a of the common unit 112. Further, by controlling the power control device 50 according to an instruction from the information management device 62, when the generated power is surplus, the surplus power is caused to flow backward to the commercial power source 70.

  In the power sale mode, the information management device 62 of the control device 60 appropriately determines whether charging / discharging is possible based on a signal input from the control unit 21. For example, when the power storage device 20 is fully charged, the information management device 62 does not issue a charge instruction in the midnight time zone, and issues a discharge instruction in the daytime or night time zone when there is no remaining power in the power storage device 20. Absent.

  The eco mode is a mode for the purpose of obtaining an energy saving effect by using the electric power generated by the solar power generation device 10 as much as possible with the load 112a of the shared unit 112.

  When the eco mode is selected, the information management device 62 of the control device 60 uses the signal (whether or not the detection result is a negative value) input from the trading power meter 30 during the daytime period. It is confirmed whether or not the electric power generated by the photovoltaic power generation apparatus 10 is sold. As illustrated in FIG. 4, when the information management device 62 determines that the power generated by the solar power generation device 10 is being sold, the information management device 62 controls the power control device 50 to change the power storage device 20 to solar power generation. Charging is performed with power from the device 10. Thereby, the electric power accommodation system 1 can charge the electrical storage apparatus 20 with the electric power generated using natural energy (sunlight). At this time, by controlling the power control device 50 according to an instruction from the information management device 62 of the control device 60, about 100 W of power is purchased from the commercial power supply 70, and the power storage device 20 is charged with the purchased power. In FIG. 4 and FIG. 6 described later, the electric power from the commercial power source 70 is indicated by a white arrow, and the electric power generated by the solar power generation device 10 is indicated by a black arrow.

  In addition, by controlling the power control device 50 in accordance with an instruction from the information management device 62 of the control device 60, the power storage device 20 is discharged as necessary during nighttime or midnight when the solar power generation device 10 is not generating power. To do. Thereby, the electric power charged with the electric power from the solar power generation device 10 and the commercial power source 70 is supplied to the load 112 a of the common unit 112. At this time, the information management apparatus 62 purchases about 100 W of power from the commercial power supply 70 and supplies the purchased power to the load 112 a of the shared unit 112.

  In the eco mode, the information management device 62 of the control device 60 appropriately determines whether charging / discharging is possible based on a signal input from the control unit 21. For example, when the power storage device 20 is fully charged, the information management device 62 does not issue a charge instruction during the daytime period, and when the power storage device 20 has no remaining capacity, issues a discharge instruction even during the night or at midnight. Absent. When no discharge instruction is issued at night or at midnight, the information management device 62 supplies power from the commercial power supply 70 to the load 112a of the shared unit 112. As a result, the power interchange system 1 can be used for nighttime or midnight hours even when cloudy or rainy weather continues and the power storage device 20 cannot be fully charged with power from the solar power generation device 10 during the daytime. Power can be stably supplied to the load 112a of the shared unit 112 to the belt.

  In addition, the information management device 62 of the control device 60 controls the power control device 50 when the amount of power generated by the solar power generation device 10 is small in both the power sale mode and the eco mode, so that the information management device 62 can operate at night or midnight. During this time period, the amount of power purchased from the commercial power source 70 is automatically increased to increase the amount of power charged in the power storage device 20. As described above, the power interchange system 1 can ensure the amount of power stored in the power storage device 20 regardless of the weather by using the solar power generation device 10 and the commercial power supply 70 together as the power supply to the power storage device 20. . According to this, the power accommodation system 1 can suppress the remaining amount of the power storage device 20 from being lost and being unable to supply power to the load 112a of the shared unit 112.

  Next, power interchange between the housing complexes 110A to 110G performed by the power interchange system 1 will be described.

  As shown in FIG. 5 (a), the information management device 62 of the control device 60 sets priorities for power interchange in advance for the housing complexes 110A to 110G (at the time of power interchange), and stores the priorities in the memory. It is stored in the device. First, the flow up to setting the priority order will be described.

  The information management device 62 of the control device 60 predicts the power generation amount of the solar power generation device 10 by multiplying the power generation amount per unit area of the solar battery panel 11 and the laying area when setting the priority order.

  Here, when the solar cell panel 11 is installed on the south-facing roof 111 having good sunshine conditions, or when installed at an optimum angle with respect to the horizontal plane, or the factor that obstructs sunshine (the solar cell panel depending on the mountain and the power pole) 11), the amount of power generation increases (see FIG. 1). When a plurality of photovoltaic power generation devices 10 are respectively provided in the apartment houses 110A to 110G as in the present embodiment, the power generation amounts of the respective photovoltaic power generation devices 10 are different from each other due to differences in the sunshine conditions and the like.

  Therefore, the information management device 62 of the control device 60 predicts the power generation amount per unit area of the solar cell panel 11 in consideration of such a difference in the power generation amount of the solar cell panel 11. Specifically, the information management device 62 has a coefficient corresponding to the sunshine condition for each of the apartment houses 110A to 110G (for example, 1 if the orientation of the solar panel 11 is southward, 0.85 if it is eastward). Etc.). And the information management apparatus 62 estimates the electric power generation amount per unit area of the solar cell panel 11 by multiplying the electric power generation capacity per unit area of the solar cell panel 11 and the coefficient according to the said sunshine conditions. In this way, the information management device 62 can reflect the difference in the power generation amount of the solar battery panel 11 in the prediction result of the power generation amount of the solar power generation device 10.

  After predicting the power generation amount of the solar power generation device 10, the information management device 62 of the control device 60 sets priorities in descending order of the predicted power generation amount. The priority order according to the present embodiment is assumed to be lower in the order of the apartment house 110A, the apartment house 110B, the apartment house 110C, the apartment house 110D, the apartment house 110E, the apartment house 110F, and the apartment house 110G.

  Next, the flow of power accommodation performed by the power accommodation system 1 will be described.

  The control device 60 executes the program stored in the storage device of the information management device 62 by the arithmetic processing device in the time zone (mainly the daytime time zone) in which the solar power generation device 10 generates power. Control the direction of power distribution according to the flexibility. In the following, for convenience of explanation, it is assumed that the power supply mode in all the apartment houses 110A to 110G is the eco mode.

  First, the information management device 62 of the control device 60 confirms the amount of power stored in the power storage device 20 provided in the housing complexes 110 </ b> A to 110 </ b> G based on a signal input from the control unit 21 of the power storage device 20. At this time, as illustrated in FIG. 5B, the information management device 62 may be configured when there is an apartment house in which the storage amount of the electricity storage device 20 is insufficient (for example, an apartment house that is not fully charged). Judge that it is necessary to accommodate electricity in the house. In the present embodiment, it is assumed that the power storage amount of the power storage devices 20 of the apartment houses 110F and 110G is insufficient. Further, in FIG. 5, the apartment houses 110 </ b> F and 110 </ b> G with insufficient power storage are indicated by hatching.

  In addition, the information management device 62 of the control device 60 can accommodate power when there is an apartment house in which the amount of electricity stored in the electricity storage device 20 is not insufficient (for example, an apartment house that is fully charged). Judge that there is. In the present embodiment, it is assumed that the housing complexes 110A to 110E can accommodate power. Further, in FIG. 5, the apartment houses 110 </ b> A to 110 </ b> E in which the storage amount is not insufficient are shown in white.

  After confirming the amount of power stored in the power storage device 20, the information management device 62 of the control device 60 determines the power source and destination. At this time, the information management apparatus 62 determines the housing complex 110A having the highest priority among the housing complexes 110A to 110E capable of accommodating power as the accommodation source. Moreover, the information management apparatus 62 determines the housing complex 110G with a low priority among the housing complexes 110F and 110G that require power accommodation as a power accommodation destination from the housing complex 110A. Next, the information management apparatus 62 determines the housing complex 110B having the second highest priority among the housing complexes 110A to 110E as the accommodation source, and has a higher priority than the housing complex 110G (the amount of power generation is large). The apartment house 110F is determined as a power interchange destination from the apartment house 110B.

  After determining the power accommodation source and the accommodation destination, as shown in FIG. 5C and FIG. 6, the information management device 62 of the control device 60 controls the power accommodation device 61 and starts the determined accommodation source. The distribution direction of electric power is controlled so as to accommodate electric power to the accommodation destination. Further, the information management device 62 controls the power control device 50 provided in the collective housing 110A / 110B of the supply source, and the power interchange device 61 generates the electric power generated by the solar power generation device 10 provided in the collective housing 110A / 110B. To supply. In addition, the information management device 62 controls the power control device 50 provided in the housing complex 110F / 110G as the accommodation destination, and the power supplied to the power accommodation device 61 is stored in the power storage device 20 and the common unit of the housing complex 110F / 110G. 112 is supplied to a load 112a.

According to this, the information management device 62 of the control device 60 preferentially powers the housings 110A and 110B that are particularly likely to have excessive power (a large amount of power generation) among the housings 110A to 110E capable of accommodating power. Can be determined as a source of accommodation. In addition, among the housing complexes 110A and 110B, the housing complex 110A where power is likely to be excessive can be preferentially set as a power interchange source. In addition, the information management device 62 may preferentially determine the housing complex 110G where power is likely to be insufficient (the amount of power generation is small) among the housing complexes 110F and 110G that need to accommodate power as a power accommodation destination. it can.
Thereby, the information management apparatus 62 can be interchanged between the collective housing 110A-110G along the actual condition which considered the electric power generation amount of the solar power generation device 10. FIG. In addition, the information management device 62 can promote private use of the solar power generation device 10 (suppress the amount of power purchased from the commercial power supply 70).

Here, in the shared unit 112, control for intentionally reducing the amount of power used in the load 112a is appropriately performed according to the power generation status of the solar power generation device 10 (for example, the amount of power generation is small). Examples of the control include control for reducing the number of shared lamps to be lit.
Therefore, by controlling the power control device 50 in accordance with an instruction from the information management device 62 of the control device 60, if there is surplus power even if power is interchanged between the housing complexes 110A to 110G, or power is supplied to all the housing complexes 110A to 110G. Is increased, the amount of power supplied to the shared unit 112 that is reducing the amount of power used is increased. At this time, the information management device 62 confirms an apartment house in which the amount of power used is reduced (less) based on a signal input from the common unit power meter 40. Then, by controlling the power control device 50 in accordance with an instruction from the information management device 62, the amount of power supplied to the common part 112 of the confirmed apartment house is increased. At this time, the information management device 62 controls the power control device 50 and the power accommodation device 61 so as to appropriately accommodate power from the apartment house having a higher priority to the confirmed apartment house. Thereby, the power interchange system 1 can promote the private use of the solar power generation device 10.

  In addition, when there is no collectible housing (when all of the housing 110A to 110G have insufficient power storage amount), the information management device 62 of the control device 60 does not perform power interchange.

  As shown in FIG. 7, in the power interchange system 1, when a power failure occurs in some of the apartment houses 110 </ b> A to 110 </ b> C, the photovoltaic power generation devices 10 provided in the apartment houses 110 </ b> A to 110 </ b> C are independent from the commercial power supply 70. To drive. At this time, the information management device 62 controls the power control device 50 and the power interchange device 61, and some collective housings from other housing complexes 110D to 110G in which no power failure has occurred until the power failure is restored. Accommodate power to 110A-110C.

  As a result, the power interchange system 1 can continuously supply power to some of the apartment houses 110A to 110C in which a power failure has occurred, and the common lamp 112 of the common unit 112 or the like in some of the apartment houses 110A to 110C. It can be operated normally.

  The basic flow of power accommodation performed by the power accommodation system 1 is as described above. The information management device 62 of the control device 60 may appropriately correct the preset priority order as follows.

  For example, the information management device 62 of the control device 60 may correct the priority order according to the time zone. In this case, the information management device 62 corrects the priority order using the relationship between the time zone and the orientation of the solar cell panel 11.

  In the solar power generation device 10, when the solar cell panel 11 faces east or southeast, the amount of power generation in the morning time zone is larger than that in the afternoon time, and the solar cell panel 11 faces west or southwest. If so, the amount of power generated in the afternoon time zone is greater than in the morning time zone. Therefore, the information management device 62 of the control device 60 increases the priority order of the apartment house (for example, the apartment house 110C / 110F) where the solar cell panel 11 facing east or southeast is laid, only in the morning time zone. Further, the information management device 62 increases the priority of the apartment house (for example, the apartment house 110E / 110G) in which the solar panel 11 facing west or southwest is laid in the afternoon time zone.

  According to this, the information management device 62 of the control device 60 can perform optimal power interchange according to the time zone.

The information management device 62 of the control device 60 may correct the priority order according to the weather. In this case, the information management device 62 acquires in advance information related to the weather forecast of the area corresponding to the apartment houses 110A to 110G from a predetermined server via the Internet line or the like.
For example, the information management device 62 acquires information related to the weather forecast for the next day in a night time zone or the like. When the weather forecast that the morning time zone of the next day is cloudy and the afternoon time zone of the next day is clear is obtained, the information management device 62 has a housing complex 110C with the solar battery panel 11 facing southeast. -Lower the priority of 110F only for the next day. Moreover, the information management apparatus 62 raises the priority of the apartment houses 110E and 110G in which the solar battery panel 11 faces southwest only during the next day.

  According to this, the information management device 62 of the control device 60 can lower the priority order of the housing complexes 110C and 110F, in which the amount of power generation per day (next day) tends to decrease due to the influence of the weather. In addition, the information management device 62 can increase the priority order of the apartment houses 110E and 110G where the amount of power generation per day (next day) is unlikely to decrease due to the influence of the weather. As a result, the information management device 62 can perform optimal power interchange according to the weather.

  The information management device 62 of the control device 60 may correct the priority order according to the amount of power stored in the power storage device 20. In this case, the information management device 62 confirms the power storage amount of the power storage devices 20 of the housing complexes 110 </ b> A to 110 </ b> G based on the signal input from the control unit 21. Then, the information management device 62 makes the priority order of the apartment house with a small amount of stored electricity lower than the priority order of the apartment house with a large amount of stored electricity.

  According to this, the information management device 62 of the control device 60 gives priority to an apartment house that requires a lot of electric power to secure a storage amount (an apartment house that has discharged a lot of electric power at night or at night). The rank can be lowered. In addition, the information management device 62 can increase the priority of an apartment house that does not require much power to secure the amount of stored electricity (an apartment house that has not discharged much power at night or at midnight). . Thereby, the information management apparatus 62 can perform optimal power interchange according to the amount of stored electricity.

  In addition, the information management device 62 of the control device 60 determines the coefficient related to the prediction result of the power generation amount of the solar power generation device 10 to the power storage amount of the power storage device 20 (for example, an apartment house with a large power generation amount among the housing complexes 110A to 110G). The priority order may be corrected using a result obtained by multiplying the apartment house having a power generation amount larger than 1 and having a small amount of power generation by a factor such as a value smaller than 1. In this case, the control device 60 sets the coefficient for each of the apartment houses 110A to 110G in advance based on the power generation amount. Control device 60 acquires the amount of electricity stored in power storage device 20 based on a signal input from control unit 21 of power storage device 20 when performing power accommodation. And the control apparatus 60 correct | amends a priority by multiplying the acquired electrical storage amount and the said coefficient.

  According to this, even if the information storage device 62 of the control device 60 is small, it is possible to prevent the priority order of the housing complex where the power is relatively easy because the power generation amount is large, from being unnecessarily low. Moreover, even if the amount of stored electricity is large, the information management device 62 can suppress an increase in the priority order of an apartment house where power is relatively difficult due to a small amount of power generation from being higher than necessary. Thereby, the information management apparatus 62 can perform optimal power accommodation according to the amount of stored electricity and the amount of power generation.

  Further, the information management device 62 of the control device 60 may correct the priority order using a result obtained by multiplying the amount of power stored in the power storage device 20 by a coefficient related to the conversion efficiency (performance) of the solar cell panel 11.

  Further, the information management device 62 of the control device 60 may correct the priority order according to the statistical value of the power consumption of the load 112a of the shared unit 112. In this case, the information management device 62 acquires the amount of power used by the load 112a of the shared unit 112 based on the input result from the shared unit power meter 40. The information management device 62 performs such acquisition of the amount of used electric power during a predetermined time period, and data (for example, an ID, the name of the apartment house, etc.), date and use, which can uniquely identify the apartment houses 110A to 110G. The calculation result and the like of the electric energy are associated with each other and stored in the storage device.

  Then, the information management device 62 of the control device 60 appropriately extracts the used power amount and the like stored in the storage device, and calculates a statistical value of the used power amount. For example, the information management device 62 calculates the average value of the power consumption corresponding to the day of the week for each of the apartment houses 110A to 110G, and confirms the calculation result. If the amount of power used on Sunday in the housing complex 110A is greater than the amount of power used on Sunday in the housing complex 110B, the information management device 62 sets the priority of the housing complex 110A lower than the priority of the housing complex 110B only on Sunday. To do.

  According to this, the information management device 62 of the control device 60 can perform optimal power accommodation according to the amount of power used.

  As described above, the power accommodation system 1 according to the present embodiment is a power accommodation system 1 capable of accommodating power between the plurality of apartment houses 110A to 110G, and is provided in the plurality of apartment houses 110A to 110G. Controlling the direction of power distribution when power is interchanged between the plurality of photovoltaic power generation apparatuses 10 having the solar battery panels 11 installed in a manner corresponding to the apartment houses 110A to 110G and the plurality of apartment houses 110A to 110G. And the control device 60 predicts the power generation amount of the plurality of photovoltaic power generation devices 10 in advance and, based on the prediction result, the plurality of housing units 110A to 110G. When the priority order of power interchange is set and power is interchanged among the plurality of apartment houses 110A to 110G, the power interchange source is based on the priority order. An apartment house 110A to 110G and an apartment house 110A to 110G as a accommodation destination are set, and the electric power of the solar power generation device 10 provided in the apartment house 110A to 110G as the accommodation source is set as the apartment house 110A as the accommodation destination. It is flexible to ~ 110G.

  By comprising in this way, the electric power interchange along the actual condition which considered the electric power generation amount of the solar power generation device 10 can be performed.

  Further, the control device 60 sets the priority order in descending order of the predicted power generation amount, preferentially sets the high-priority apartment house as the accommodation source, and gives priority to the low-priority apartment house Therefore, it is set as the accommodation destination.

  By comprising in this way, the electric power interchange along the actual condition which considered the electric power generation amount of the solar power generation device 10 can be performed.

  The control device 60 corrects the priority order according to at least one of time zone and weather.

  By comprising in this way, the electric power interchange along the actual condition which considered the time zone and the weather can be performed.

  In addition, a plurality of power storage devices 20 provided in the housing complexes 110 </ b> A to 110 </ b> G, and a control unit 21 that detects a storage amount of the plurality of power storage devices 20 and inputs a result of acquiring the storage amount to the control device 60 ( Storage amount detection means), and the control device 60 corrects the priority based on the input result of the storage amount.

  By comprising in this way, the electric power interchange along the actual condition which considered the amount of electrical storage can be performed.

  In addition, it further includes a common part power meter 40 (used power amount detecting means) for detecting the used power amount for each of the apartment houses 110A to 110G and inputting the detected power amount to the control device 60. The control device 60 corrects the priority order based on the statistical value of the input result of the power consumption.

  By comprising in this way, the electric power interchange along the actual condition which considered the electric power consumption can be performed.

  In addition, when a power failure occurs in some of the housing complexes 110A to 110C among the plurality of housing complexes 110A to 110G, the control device 60 is configured to provide the sun of the other housing complexes 110D to 110G in which no power failure has occurred. The electric power of the photovoltaic power generation apparatus 10 is accommodated to the partial housing 110A to 110C.

  By comprising in this way, even when a power failure occurs, electric power can be continuously supplied to some apartment houses 110A-110C.

In addition, the control part 21 which concerns on this embodiment is one Embodiment of an electrical storage amount detection means.
Moreover, the common part electric power meter 40 which concerns on this embodiment is one Embodiment of an electric power consumption detection means.

  The embodiment of the present invention has been described above, but the present invention is not limited to the above-described configuration, and various modifications can be made within the scope of the invention described in the claims.

  For example, in the present embodiment, power is interchanged between apartment houses, but the building that accommodates power is not limited to apartment houses, and may be a single house or the like.

  Moreover, the place where the solar cell panel 11 is provided is not limited to the roof 111, and may be, for example, a field stand, a carport, an outer wall of the housing complex 110A to 110G, or the like.

  Moreover, the solar cell panel 11 does not necessarily need to be laid on about 80% of the sunny surface of the roof 111. For example, the solar cell panel 11 may be laid only on the entire roof 111, about 80% of the entire roof 111, or the entire sunny surface. In addition, it is possible to improve the return on investment by laying the solar cell panel 11 only on the sunny surface (not laying on the sunny surface).

Moreover, the solar power generation device 10 does not necessarily need to be provided in all the apartment houses 110A-110G, for example, may be provided only in some apartment houses. In this case, the power accommodation system 1 charges the power storage device 20 with the commercial power supply 70 in the late-night time zone in the apartment house where the solar power generation device 10 is not provided, and also in the daytime or night time zone. It is possible to have a power supply mode that discharges.
In this case, an apartment house predicted to have a large amount of power generation may be extracted from the orientation and angle of the roof 111, and the photovoltaic power generation apparatus 10 may be provided only in the extracted apartment house. Thereby, since the laying area of the solar cell panel 11 in the smart city 100 can be reduced without greatly reducing the power generation amount of the solar power generation device 10, the return on investment can be improved.

  The power interchange system 1 may not include the power storage device 20.

  Moreover, when the information management apparatus 62 of the control apparatus 60 sets the priority order, and the result of estimating the electric power generation amount of the solar power generation apparatus 10 becomes the same value in a plurality of apartment houses, the conversion efficiency etc. Ranking between a plurality of apartment houses having the same value based on them may be performed.

  In addition, the information management device 62 of the control device 60 determines whether power can be accommodated based on the amount of power stored in the power storage device 20, but means for determining whether power can be accommodated is limited to this. It is not what is done. For example, it may be determined whether power can be accommodated based on the detection result of the trading power meter 30. In this case, it may be determined that power can be accommodated when selling power.

  Further, as shown in FIG. 8, the power accommodation system 1 may include a hybrid power conditioner 80. The hybrid power conditioner 80 includes a converter that appropriately converts DC power generated by the photovoltaic power generation apparatus 10 into a predetermined voltage, an inverter that converts DC power into AC power, and the like. The hybrid power conditioner 80 can appropriately convert the electric power generated by the solar power generation device 10 and the electric power discharged from the power storage device 20 and supply the electric power from the commercial power source 70 to the load 112a of the common unit 112. The power storage device 20 is configured to be able to store power. The hybrid power conditioner 80 is configured to be able to sell the power generated by the solar power generation device 10. Further, the hybrid power conditioner 80 is configured to be able to input the amount of power stored in the power storage device 20 to the information management device 62 of the control device 60.

  In such a configuration, the power interchange system 1 always charges the power storage device 20 with the power from the solar power generation device 10 and the commercial power source 70 (regardless of the time zone) so that the power storage device 20 is always fully charged. It may have a simple supply mode. In the supply mode, power storage device 20 is discharged when a power failure occurs in housing complexes 110A to 110G. Thereby, when a power failure occurs, power can be supplied to the apartment houses 110A to 110G for a long time.

  Further, in the present embodiment, the power accommodation system 1 is assumed to accommodate power from the housing complex of the accommodation source to the housing complex of the accommodation destination via the power accommodation device 61, but means for accommodating power is as follows. It is not limited to this. For example, the power accommodation system 1 may be adapted to directly (without going through the power accommodation device 61) from the housing complex of the accommodation source to the housing complex of the accommodation destination.

  In addition, the power interchange system 1 may include a shared power storage device that is used jointly in the housing complexes 110 </ b> A to 110 </ b> G. The shared power storage device is electrically connected to the commercial power supply 70. In addition, the shared power storage device is electrically connected to the photovoltaic power generation devices 10 of the housing complexes 110A to 110G via the power interchange device 61 and the like.

  The information management device 62 of the control device 60 is configured to use the shared power storage when there is power remaining even when power is accommodated between the apartment houses 110A to 110G, or when power is available in all the apartment houses 110A to 110G. Charge the device. If the amount of power stored in the shared power storage device cannot be secured with the power from the apartment houses 110 </ b> A to 110 </ b> G, the information management device 62 may charge the shared power storage device with power from the commercial power supply 70.

  The information management device 62 of the control device 60 discharges the shared power storage device when a power failure occurs in the housing complexes 110A to 110G. Note that the information management device 62 sets a minimum storage amount (for example, a storage amount that can supply power for several hours during a power failure) in advance, and the minimum storage amount during normal times (when no power failure occurs). The shared power storage device may be charged up to the amount.

  Moreover, you may provide such a shared electrical storage apparatus as what collectively accumulate | stores the electric power from the collective housing with high priority which becomes an interchange origin (the collective housing 110A * 110B in FIG.5 (b)). The shared power storage device is connected to control device 60. The information management device 62 of the control device 60 controls charging / discharging of the shared power storage device. The information management device 62 controls the power accommodation device 61 so as to supply the stored power to the housing complex with lower priority that is the accommodation destination (the housing complexes 110F and 110G in FIG. 5B). To discharge. In this way, a shared power storage device with a large storage capacity is required, but it can be used even when the number of housing complexes that serve as accommodation sources differs from the number of housing complexes that serve as accommodation destinations (power interchange) Possible). For example, even when the number of housing complexes that are accommodation sources is two and the number of housing complexes that are accommodation destinations is three, the power from the two housing complexes that become accommodation sources is temporarily shared. The electric power stored in the shared power storage device can be supplied to three housing units that are accommodation destinations.

  In addition, a power meter that detects the amount of power generated by the solar power generation device 10 is provided on the distribution line L2 (between the power conditioner 12 and the power control device 50) in FIG. 3, and the detection result is input to the control device 60. You may make it do. The control device 60 can grasp the actual power generation amount in the solar power generation device 10 in each apartment house from the detection result. For this reason, for example, the power generation amount grasped based on the power meter is a prediction result of the power generation amount of the solar power generation device 10 continuously for a predetermined period (for example, one week (7 days) or one month (30 days)). When the information management device 62 predicts the power generation capacity per unit area of the solar cell panel 11, the power generation amount of the solar power generation device 10 is predicted by multiplying by a coefficient corresponding thereto. It can be reflected in the results. By doing in this way, for example, in the apartment house having the solar power generation device 10 that is predicted to have a large amount of power generation, a part of the power generation capacity of the solar cell panel 11 is predicted to be reduced or lost. Even when the amount of power generation cannot be obtained, the priority can be lowered by grasping this and reflecting it in the prediction result of the power generation amount.

DESCRIPTION OF SYMBOLS 1 Electric power interchange system 10 Photovoltaic power generation device 20 Power storage device 60 Control device 110A-110G Apartment house (building)

Claims (6)

An electric power interchange system capable of accommodating electric power between a plurality of buildings,
A plurality of photovoltaic power generation devices provided in the plurality of buildings and having solar cell panels installed in a manner corresponding to each building;
A control device for controlling the direction of power distribution when accommodating power between the plurality of buildings;
Comprising
The controller is
Predicting the power generation amount of the plurality of solar power generation devices in advance and setting the priority order of power interchange for the plurality of buildings based on the prediction result,
When accommodating power between the plurality of buildings, the photovoltaic power generation apparatus is provided in the building serving as the accommodation source by setting a building serving as a power accommodation source and a building serving as a accommodation destination based on the priority order. Power to the building as the accommodation destination,
Power interchange system. The controller is
Set the priority order in the order of the predicted power generation amount,
Preferentially set the high priority building as the accommodation source,
Preferentially setting the low-priority building as the accommodation destination;
The power interchange system according to claim 1. The controller is
Correcting the priority according to at least one of time zone and weather,
The power interchange system according to claim 1 or 2. A plurality of power storage devices provided in the plurality of buildings;
A storage amount detection unit that detects a storage amount of the plurality of storage devices and inputs an acquisition result of the storage amount to the control device;
Further comprising
The controller is
Correcting the priority based on an input result of the storage amount;
The electric power interchange system as described in any one of Claim 1- Claim 3. A power consumption detecting means for detecting a power consumption amount for each building and inputting a detection result of the power consumption amount to the control device,
The controller is
Correcting the priority based on a statistical value of the input result of the power consumption;
The electric power interchange system as described in any one of Claim 1- Claim 4. The controller is
When a power outage occurs in some of the plurality of buildings, the power of the solar power generation device of the other building where the power outage has not occurred is accommodated to the some buildings.
The power interchange system according to any one of claims 1 to 5.

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