KR102542948B1 - 차량용 급속충전 시스템 및 방법 - Google Patents
차량용 급속충전 시스템 및 방법 Download PDFInfo
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- B60L2240/00—Control parameters of input or output; Target parameters
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Abstract
Description
도 2는 종래의 다른 실시예에 따른 차량용 급속충전 시스템의 구성을 도시한 도면이다.
도 3은 본 발명의 일실시예에 따른 차량용 급속충전 시스템의 구성을 도시한 도면이다.
도 4는 본 발명의 일실시예에 따른 차량용 급속충전 시스템에서, 3상 모터의 각각의 상에 연결된 인버터의 구동 소자에 각각 제공된 PWM 신호와 그에 따른 동상모드전압을 도시한 도면이다.
도 5는 본 발명의 다른 실시예에 따른 차량용 급속충전 시스템에서, 3상 모터의 각각의 상에 연결된 인버터의 구동 소자에 각각 제공된 PWM 신호와 그에 따른 동상모드전압을 도시한 도면이다.
도 6은 1/3 듀티비를 갖되 각각 120도의 위상차이를 갖는 3개의 PWM 신호가 인버터에 제공된 경우의 모터전류, 입력전류 및 누설전류의 리플을 보여주는 모의실험 결과 데이터를 나타내는 도면이다.
도 7은 2/3 듀티비를 갖되 각각 120도의 위상차이를 갖는 3개의 PWM 신호가 인버터에 제공된 경우의 모터전류, 입력전류 및 누설전류의 리플을 보여주는 모의실험 결과 데이터를 나타내는 도면이다.
도 8은 본 발명의 일실시예에 따른 차량용 급속충전 방법의 흐름을 도시한 흐름도이다.
200: 충전부 210: 3상 모터
220: 인버터 300: 입력전압 산출부
400: 입력전류 산출부 500: 송전 제어부
600: 충전 제어부
C1: 제1커패시터 C2: 제2커패시터
C3: 제3커패시터 C4: 제4커패시터
R1: 제1릴레이 R2: 제2릴레이
R3: 제3릴레이 C: 차량 샤시
G: 그라운드 Vsn: 동상모드전압
Van: 3상 모터의 a상의 극전압
Vbn: 3상 모터의 b상의 극전압
Vcn: 3상 모터의 c상의 극전압
Claims (11)
- 차량 배터리를 충전시키기 위한 전력을 제공하는 송전부;
3상 모터와 3상 모터와 연결된 인버터를 포함하며, 송전부로부터 제공되는 전력을 공급받아 차량 배터리를 충전하는 충전부;
상기 송전부로부터 제공되는 전력을 기반으로 기 설정된 복수의 듀티비 중 어느 하나의 듀티비를 선택하고, 상기 선택된 듀티비와 차량 배터리의 전압 값에 기반하여 충전부에 제공되는 입력전압 값을 산출하는 입력전압 산출부;
상기 산출된 입력전압 값 및 송전부에서 제공되는 전력 값에 기반하여 충전부에 입력되는 입력전류 값을 산출하는 입력전류 산출부;
상기 산출된 입력전류가 송전부로부터 충전부로 입력되도록 명령하는 송전 제어부; 및
상기 산출된 입력전압 값 및 차량 배터리의 전압 값에 기반하여 차량 배터리가 충전되도록 명령하는 충전 제어부;를 포함하는 차량용 급속충전 시스템. - 청구항 1에 있어서, 상기 충전부는,
상기 인버터와 병렬로 연결된 제1커패시터 및 제2커패시터;
상기 3상 모터의 중성단에 연결된 제2릴레이; 및
상기 인버터에 연결된 제1릴레이 및 제3릴레이;를 포함하는 것을 특징으로 하는 차량용 급속충전 시스템. - 청구항 1에 있어서, 상기 인버터는,
서로 연결된 복수의 구동소자를 통해 상기 3상 모터로부터 3상 신호를 입력받는 것을 특징으로 하는 차량용 급속충전 시스템. - 청구항 1에 있어서, 상기 송전부는,
전력을 제공하는 전원 제공부; 및
상기 전원 제공부와 병렬로 연결된 제3커패시터 및 제4커패시터;를 포함하는 것을 특징으로 하는 차량용 급속충전 시스템. - 청구항 2에 있어서, 상기 충전 제어부는,
상기 산출된 입력전압 값이 상기 차량 배터리의 전압 값과 동일한 경우, 상기 제1릴레이 및 제3릴레이가 연결되도록 하여 상기 차량 배터리가 충전되도록 하는 것을 특징으로 하는 차량용 급속충전 시스템. - 청구항 2에 있어서, 충전 제어부는,
상기 산출된 입력전압 값이 상기 차량 배터리의 전압 값 보다 작은 경우, 상기 제2릴레이 및 제3릴레이가 연결되도록 하여, 상기 인버터를 통해 상기 입력전압을 승압시켜 차량 배터리가 충전되도록 하는 것을 특징으로 하는 차량용 급속충전 시스템. - 청구항 1항에 있어서, 상기 충전 제어부는,
상기 산출된 입력전압 값이 상기 차량 배터리의 전압 값 보다 작은 경우, 상기 선택된 듀티비를 갖는 3개의 PWM 신호가 3상 모터의 각각의 상에 연결된 인버터의 복수의 구동 소자에 각각 제공되도록 하는 것을 특징으로 하는 차량용 급속충전 시스템. - 청구항 7에 있어서, 상기 3개의 PWM 신호는,
각각 120도의 위상차이를 갖는 것을 특징으로 하는 차량용 급속충전 시스템. - 청구항 1에 있어서, 상기 기 설정된 복수의 듀티비는,
0, 1/3, 2/3 및 1을 포함하는 것을 특징으로 하는 차량용 급속충전 시스템. - 청구항 1의 차량용 급속충전 시스템을 이용한 차량용 급속충전 방법은,
차량 배터리를 충전시키기 위해 송전부로부터 제공되는 충전전력을 결정하는 단계;
상기 송전부로부터 제공되는 충전전력을 기반으로 기 설정된 복수의 듀티비 중 어느 하나의 듀티비를 선택하고, 상기 선택된 듀티비와 차량 배터리의 전압 값에 기반하여 충전부에 제공되는 입력전압 값을 산출하는 단계;
상기 산출된 입력전압 값 및 송전부에서 제공되는 전력 값에 기반하여 충전부에 입력되는 입력전류 값을 산출하는 단계;
상기 산출된 입력전류가 송전부로부터 충전부로 입력되도록 명령하는 단계; 및
상기 산출된 입력전압 값 및 차량 배터리의 전압 값에 기반하여 차량 배터리가 충전되도록 명령하는 단계;를 포함하는 차량용 급속충전 방법. - 청구항 10에 있어서,
상기 산출된 입력전압 및 입력전류가 송전부로부터 충전부로 입력되어 차량 배터리가 충전되는 과정에서 충전전력이 변경되는 경우,
상기 입력전압 및 입력전류를 재산출하고, 재산출된 입력전압 및 입력전류가 충전부로 입력되도록 제어하는 단계;를 더 포함하는 차량용 급속충전 방법.
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| DE102018219336.3A DE102018219336B4 (de) | 2018-04-13 | 2018-11-13 | Ladesystem und Verfahren für Fahrzeuge |
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| DE102018219336A1 (de) | 2019-10-17 |
| US20190315234A1 (en) | 2019-10-17 |
| CN110386006A (zh) | 2019-10-29 |
| CN110386006B (zh) | 2023-10-20 |
| US10857898B2 (en) | 2020-12-08 |
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