CN112085231A - Rapid response method for accident information of power dispatching control center - Google Patents

Abstract

The invention discloses a rapid response method for accident information of a power dispatching control center, which includes: connecting each substation to a smart grid dispatching control system to obtain table information of each substation; optimizing and rectifying the original remote signaling signal in the point table information, In order to reduce the total amount of monitoring information connected to the system; configure the delay alarm function for the smart grid dispatching control system to filter the short-term "action and reset" signals in each fault situation; The fault information is accurately and quickly determined in the map, and the fault trip conclusion is reported to the dispatcher in time after preliminary analysis and judgment. The rapid response method for accident information in the power dispatching control center greatly reduces the pressure of the on-duty monitor in the event of an accident, and shortens the accident information processing time; at the same time, the optimization of the monitoring information reduces the pressure on the monitoring personnel, improves the monitoring efficiency, and improves the Safe and stable operation of the power grid.

Description

A fast response method for accident information in power dispatching control center

technical field

The invention relates to the technical field of power grid analysis and processing, in particular to a rapid response method for accident information in a power dispatching control center.

Background technique

The production real-time monitoring system and the collection of centralized control information are standardized and standardized, and the reliability management requirements of power transmission and transformation are required to shorten the processing time of equipment failure and power outage as much as possible. The current monitoring information accident handling process is as follows: fault tripping, monitoring information map - the monitor conducts fault research and judgment, and draws the conclusion of fault tripping - the monitor reports the structure of the first draft of the fault trip to the dispatcher - the monitor checks to the site Fault trip information - the supervisor reports the fault trip down information to the on-duty dispatcher.

At present, due to the inconsistent signal descriptions of equipment manufacturers in each substation, the signal modification is not carried out according to the information specification, which may easily cause the monitoring personnel to make misjudgments, or prolong the signal judgment time, and the hidden dangers cannot be eliminated in time. In addition, the pop-up window of "Recent Items List" can only display 200 signals. Important signals are often washed out, and it is easy to miss the signal, which inevitably prolongs the time for processing accident information and reporting time for monitoring personnel on duty.

After research, it was found that the current monitoring personnel took too long to confirm and analyze the accident in the accident processing, which prolonged the accident processing time; and the monitoring information was not clearly described, the amount of information was large and repeated, and the real-time information was easy to cover, which was inconvenient for the monitoring personnel. Monitoring hinders the qualitative analysis and judgment of faults, delays the time for reporting and handling accidents, and reduces work efficiency.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned problems in the prior art, the present invention proposes a rapid response method for accident information in a power dispatching control center, which greatly reduces the amount of monitoring information after an accident and has a short processing time for the accident information.

To achieve the above object, the present invention adopts the following technical solutions:

The present invention provides a rapid response method for accident information of a power dispatching control center, comprising:

Connect each substation to the smart grid dispatching control system to obtain the meter information of each substation;

Optimize and rectify the original remote signaling signals in the point table information to reduce the total amount of monitoring information connected to the smart grid dispatching control system;

Configure the delay alarm function for the smart grid dispatching control system to filter the short-term "action and reset" signal in each fault condition in the monitoring information map; and

The monitoring personnel can accurately and quickly determine the fault information from the rectified and filtered fault information, and report the fault trip conclusion to the dispatcher in time after preliminary analysis and judgment.

Further, in the method for quick response to accident information of the power dispatching control center, the rectification of the original remote signaling signal in the point table information includes:

Optimize the table information of the substations that have been put into operation according to the needs of uploading;

The meter information of the newly invested substations shall be rectified according to the information standard of the point meter of Hubei Province.

Further preferably, in the method for rapid response to accident information in the power dispatching control center, the optimization or the adjustment is to delete data that is repeated in the original remote signaling signal and/or that is not required by the master station.

Further, in the method for rapid response to accident information of the power dispatching control center, the method further includes:

After optimizing and rectifying the original remote signaling signals in the point table information, rectify the incomplete, wrongly classified, and inaccurately described information in the point table information, so as to improve the correct rate of the supervisors in judging the fault information.

Further, in the method for rapid response to accident information of the power dispatching control center, the method further includes:

Establish a sound assessment system and an effective reward and punishment mechanism for monitoring personnel in accordance with the assessment standard system, and implement them in place to avoid excessively long time for monitoring personnel to deal with accidents caused by laxness; and

Conduct theoretical examinations and practical operation drills for monitoring personnel to avoid prolonged accident handling time and misjudgment caused by poor skills of monitoring personnel.

Further, in the method for rapid response to accident information of the power dispatching control center, the method further includes:

Regularly overhaul and maintain the monitoring host of the smart grid dispatching control system to avoid that when the monitoring host fails, the monitoring personnel cannot monitor the power grid equipment and cannot see the trip information.

Further, in the method for rapid response to accident information in the power dispatching control center, the fault information is one or more of 10kV busbar grounding, 110kV switch tripping, 220kV switch tripping, and main transformer tripping.

Further, in the method for rapid response to accident information of an electric power dispatching control center, the smart grid dispatching control system is a SCADA system.

Further, in the method for rapid response to accident information of the power dispatching control center, the method further includes:

After the monitoring personnel report the fault trip conclusion to the dispatcher monitor, the monitoring personnel will verify the fault trip information on site.

Further, in the method for rapid response to accident information of the power dispatching control center, the method further includes:

After the monitoring personnel verify the fault trip information at the scene, the monitoring personnel will report the fault trip details to the dispatcher on duty.

The present invention adopts the above-mentioned technical scheme, compared with the prior art, has the following technical effects:

The rapid response method for accident information of the power dispatching control center provided by the invention greatly reduces the pressure of fault research and judgment of the on-duty monitor in the event of an accident, shortens the accident information processing time, and lays a foundation for the dispatcher to quickly restore the user's power supply; at the same time, monitoring information The optimization reduces the pressure of monitoring personnel, improves the monitoring efficiency, and enhances the safe and stable operation level of the power grid; and the delay method proposed in the rapid response method for accident information is simple to implement and has significant effects, and can be extended to county companies.

Description of drawings

Fig. 1 is a chart of the accident information processing and monitoring information adjustment chart of the existing power dispatching control center;

Fig. 2 is the electric power dispatching control center accident information processing time chart to be realized in the verification test of the present invention;

Fig. 3 is a fishbone diagram of each influencing factor analysis in a quick response method for accident information of a power dispatching control center according to the present invention;

Fig. 4 is a survey table of processing time of monitoring personnel for different accident types after the implementation of a quick response method for accident information in a power dispatching control center according to the present invention;

Fig. 5 is an accident trip information table before the implementation of a method of rapid response to accident information in a power dispatching control center applied to the 110kV Junshui Station;

FIG. 6 is an accident trip information table after the application of a quick response method for accident information in a power dispatching control center of the present invention to the implementation of the 110kV Junshui Station.

Detailed ways

The present invention will be described in detail and concretely below through specific embodiments, so as to make the present invention better understood, but the following embodiments do not limit the scope of the present invention.

The present invention is based on the following process of accident handling of monitoring information at the current stage: “fault tripping, monitoring information drawing—the monitor conducts fault research and judgment, and draws a conclusion of fault tripping—the monitor reports the structure of the first draft of the fault trip to the dispatcher—monitoring The defect that the supervisors verify the fault trip information to the scene - the supervisor reports the fault trip down information to the on-duty dispatcher”, which aims to shorten the supervisor’s processing time for the accident information and shorten the supervisor’s reporting time for the fault information. .

The investigation and statistics of the accident information processing and monitoring information survey form of the power dispatching control center from January to March 2019 are shown in Tables 1 and 2 below:

Table 1 Accident Information Processing Investigation Form

type of information Confirmation time/min Analysis time/min Reporting time/min total time/min 10kV busbar grounding 1.5 2 0.5 4 110kV switch tripped 1.5 2 0.7 4.2 220kV switch tripping 2 5 2 9 Main transformer trips 2 6 2 10

Table 2 Monitoring Information Questionnaire

Conclusion: From the above Table 1, it can be clearly found that the monitoring personnel took too long to confirm and analyze the accident during the accident handling, which prolonged the accident handling time; from Table 2 and Figure 1, it can be seen that the monitoring information is unclear and the amount of information is large. And it is repeated, real-time information is easy to cover, it is inconvenient for monitoring personnel to monitor, hinders the analysis and judgment of the qualitative nature of the fault, delays the time for reporting and handling accidents, and reduces work efficiency.

The members of the QC team of the monitoring team, through the investigation of the current situation, believe that the large amount of information and the long time for confirmation and analysis of accident information are the main reasons that affect the processing of monitoring information accidents. Combined with the actual situation, the team set the monitoring information accident processing time to set shortening targets according to different fault types, so as to greatly shorten the accident processing time and improve work efficiency, as shown in Figure 2.

The members of the QC team of the monitoring class used the brainstorming method to make a detailed analysis of many factors affecting the reporting time of the fault information of the monitor, as shown in the fishbone diagram in Figure 3. According to the causal analysis diagram, the end factors are obtained, and the factor confirmation plan is formulated and confirmed one by one, and the factor analysis table is established, as shown in Table 3 below:

Table 3. Factor analysis table

Based on the factor analysis table shown in Table 3, the members of the QC team of the monitoring class used the brainstorming method to provide a power dispatching control method for problems such as the large amount of information in the original point table, the quick failure information refresh, and the non-standard monitoring information classification. Central accident information rapid response method.

The method for quickly responding to accident information in a power dispatching control center includes: connecting each substation to a smart grid dispatching control system to obtain meter information of each substation; The total amount of monitoring information of the power grid dispatching control system includes a 5% reduction in the original remote signalling information for the repeated remote signalling signals that are not required by the master station; the smart grid dispatching control system is configured with a delay alarm function to map the monitoring information. The short-term "action, reset" signal is filtered in each fault condition, so as to prevent the monitoring controller from missing the trip information due to the rapid screen refresh, and the short-term "action, reset" signal within 5S directly enters the running account; and monitoring The personnel can accurately and quickly determine the fault information from the rectified and filtered fault information, and report the fault trip conclusion to the dispatcher in time after preliminary analysis and judgment.

As a preferred embodiment, the rectification of the original remote signaling signal in the point table information includes: optimizing the information of the substation station table information that has been put into operation according to the upload needs; Standards are revised. The optimization or the rectification is to prune repetitions in the original remote signaling signal and/or data that is not required by the master station. Before the power grid equipment is powered on, obtain the monitoring information table of each substation provided by the automation manufacturer. Too much data in the original point table can easily lead to a lot of information when tripping and prolong the fault judgment time. Selecting typical substations, it is found that some remote signaling signals are repeated and the main station does not need them. Therefore, it is necessary to optimize and rectify the original remote signaling signals in the point table information to reduce the total amount of monitoring information connected to the smart grid dispatching control system.

As a preferred embodiment, the method for quick response to accident information of an electric power dispatching control center further includes: after optimizing and rectifying the original remote signaling signal in the point table information, the point table information is incomplete, wrongly classified, and incorrectly described. Accurate information is rectified to improve the correct rate of the supervisor's judgment on fault information. Specifically, it includes rectifying the incomplete protection information of the existing point table information and the non-standard description, and rearranging the wrong classification of the existing point table information. According to the "Regulations on the Management of Regional Dispatching Centralized Monitoring Information Access, Acceptance and Monitoring License", the automation major should be responsible for the review of monitoring information version, point number, and coefficient; the protection major should be responsible for jointly reviewing the integrity and standardization of the monitoring information table; In line with the correctness of the audit point table information in the transmission, the pass rate reaches 100%. In the existing normative rectification point table, there are misclassifications in the rectification part, and the terminology is not standardized, such as export protection actions. Irregularity of the point table information can easily lead to the wrong interpretation of the signal interpretation by the monitor, and the classification error can easily lead to omission and misjudgment when viewing the classified signal.

As a preferred embodiment, the method for rapid response to accident information in the power dispatching control center further includes: establishing a sound assessment system and an effective reward and punishment mechanism for monitoring personnel in accordance with the assessment standard system, and implementing them in place to avoid monitoring personnel due to laxity It takes too long to deal with the accident caused by it; and conduct theoretical examinations and practical operation drills for the monitoring personnel to avoid the prolonged accident processing time and misjudgment caused by the poor skill level of the monitoring personnel.

As a preferred embodiment, the method for quick response to accident information in the power dispatching control center further includes: regularly overhauling and maintaining the monitoring host of the smart grid dispatching control system, so as to prevent the monitoring personnel from being unable to monitor the power grid equipment when the monitoring host fails. To monitor, can not see the trip information.

As a preferred embodiment, the fault information is one or more of 10kV busbar grounding, 110kV switch tripping, 220kV switch tripping, and main transformer tripping. The smart grid dispatching control system is a SCADA system.

As a preferred embodiment, the method for rapid response to accident information in the power dispatching control center further includes: after the supervisor reports the fault trip conclusion to the dispatcher supervisor, the supervisor verifies the fault trip information on site; then After the monitoring personnel verify the fault trip information at the scene, the monitoring personnel will report the fault trip details to the dispatcher on duty.

Verification test:

The current monitoring information accident processing process is optimized and improved by using the fast response method for the accident information of the power dispatching control center provided by the present invention, and the comparative analysis before and after the implementation is as follows:

Verification result 1: The amount of monitoring information after the accident is greatly reduced

The members of the QC team selected the accident trip information table of the 110kV Junshui Station, and compared the amount of information before and after the implementation of the countermeasures. The information quantity of the accident trip by implementing the accident information quick response method of the present invention is shown in FIG. 5 . The information quantity of the accident trip by implementing the accident information quick response method of the present invention is shown in FIG. 6 . By comparing the number of monitoring information on the screen before and after the implementation, as shown in Figure 5 and Figure 6, it is found that the amount of information has been greatly reduced after the accident.

Verification result two:

After implementing the information standardization management measures of the accident information rapid response method of the present invention, after a period of operation, we made statistics on the accident handling time again, as shown in Table 4 below:

Combined with the analysis in Table 4 and Figure 4, by adopting the accident information rapid response method, the problem of long processing time of the accident information of the supervisor was successfully solved, the expected target value was achieved, and significant technical effects were achieved.

To sum up, the method for quick response to accident information of the power dispatching control center provided by the present invention can greatly reduce the pressure of fault research and judgment of the on-duty monitor in the event of an accident, shorten the processing time of the accident information, and lay a foundation for the dispatcher to quickly restore the power supply of the user. . At the same time, the optimization of monitoring information reduces the pressure on monitoring personnel, improves monitoring efficiency, and improves the level of safe and stable operation of the power grid. Moreover, the delay method of configuring the delay alarm function adopted by the accident information rapid response method of the power dispatching control center is simple to implement and has a significant effect, and can be extended to various county companies, which has good popularization and application value and practicability.

The specific embodiments of the present invention have been described above in detail, but they are only used as examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be included within the scope of the present invention.

Claims (10)

1. A quick response method for accident information of a power dispatching control center is characterized by comprising the following steps:

accessing each transformer substation to an intelligent power grid dispatching control system to obtain information of each transformer substation;

optimizing and modifying original remote signaling signals in the point meter information to reduce the total amount of monitoring information accessed into the intelligent power grid dispatching control system;

configuring a time delay alarm function for the intelligent power grid dispatching control system so as to filter short-time action and reset signals under each fault condition in a monitoring information deduction graph; and

the monitoring personnel accurately and quickly determine the fault information from the rectified and filtered fault information, and timely report a fault trip conclusion to a dispatcher after preliminary analysis and study and judgment.

2. The method for quickly responding to the accident information of the power dispatching control center according to claim 1, wherein the modifying the original telecommand signal in the point table information comprises:

optimizing the information of the switched substation site table according to uploading requirements;

and (4) rectifying and modifying the information of the new transformer substation site according to the Hubei province site table information standard.

3. The method of claim 2, wherein the optimizing or modifying is to prune the original telecommand signal for duplicate and/or data not needed by the primary station.

4. The power dispatching control center accident information quick response method of claim 1, further comprising:

after the original remote signaling signals in the point list information are optimized and modified, incomplete information, classification errors and inaccurate description information in the point list information are modified, so that the accuracy of the fault information research and judgment of a monitor is improved.

5. The power dispatching control center accident information quick response method of claim 1, further comprising:

a perfect assessment system and an effective reward and punishment mechanism are established for the monitoring personnel according to an assessment standard system, and are implemented in place, so that the long time for accident treatment caused by the relaxation of the monitoring personnel is avoided; and

the method and the system perform theoretical examination and actual operation drilling on the monitoring personnel, and avoid the accident handling time prolonging and the misjudgment caused by the skill level difference of the monitoring personnel.

6. The power dispatching control center accident information quick response method of claim 1, further comprising:

the monitoring host of the intelligent power grid dispatching control system is periodically overhauled and maintained, and the situation that monitoring personnel cannot monitor power grid equipment and cannot see trip information when the monitoring host breaks down is avoided.

7. The power dispatching control center accident information quick response method of claim 1, wherein the fault information is one or more of 10kV bus grounding, 110kV switch tripping, 220kV switch tripping and main transformer tripping.

8. The method for rapidly responding to the accident information of the power dispatching control center according to claim 1, wherein the smart grid dispatching control system is a SCADA system.

9. The power dispatching control center accident information quick response method of claim 1, further comprising:

and after reporting the fault trip conclusion to a dispatcher monitor by the monitoring personnel, verifying the fault trip information to the site by the monitoring personnel.

10. The power dispatching control center accident information rapid response method of claim 9, further comprising:

after the monitoring personnel verify the fault trip information to the site, the monitoring personnel report the detailed fault trip information to the current value dispatcher.

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