基于虚拟同步机的电动汽车快速充电控制技术

张怡冰; 刘其辉

张怡冰,刘其辉.基于虚拟同步机的电动汽车快速充电控制技术[J].电测与仪表,2019,56(10):14-20.
Zhang Yibing,Liu Qihui.Virtual Synchronous Machine Based Fast Charger Control TechnologyFor Electric Vehicle Application[J].Electrical Measurement & Instrumentation,2019,56(10):14-20.

基于虚拟同步机的电动汽车快速充电控制技术

Virtual Synchronous Machine Based Fast Charger Control TechnologyFor Electric Vehicle Application

DOI：10.19753/j.issn1001-1390.2019.010.003

中文关键词: 虚拟同步机技术电动汽车快速充电电能质量

英文关键词:Virtual Synchronous Machine (VSM), electric vehicles, fast charger, power equality

基金项目:国家重点研发计划重点专项（2016YFB0101900）：“安全可控、能源互联、开放互通的智能充电网研究与应用示范”

作者中文名	作者英文名	单位
张怡冰	Zhang Yibing	新能源电力系统国家重点实验室华北电力大学
刘其辉	Liu Qihui	新能源电力系统国家重点实验室华北电力大学

摘要点击次数: 1420

中文摘要:

随着电动汽车扩张式发展,电动汽车快速充电技术受到越来越多地关注。电动汽车动力电池需要通过变流器接入电网实现并网和功率传输,大量电动汽车快充过程中变流器传输功率波动很大,而传统的控制策略虽然响应迅速,但是缺少惯性和阻尼支撑,因而对电网的冲击很大。针对该问题,本文提出了一种基于虚拟同步机的电动汽车快速充电控制技术,在兼顾快速充电的同时,通过模拟同步电机的惯量和阻尼特性,平抑传输功率的波动,改善并网点电能质量。最后,在MATLAB/Simulink中搭建了电动汽车快速充电系统,验证了该方法的有效性和准确性。

英文摘要:

With the development of electric vehicle, fast charger has been paid more and more attention. Electric vehicle power battery needs to be connected through the inverter and the transmission power fluctuates greatly during the process of charging. Although the traditional control strategy is of rapid response, but bad for the safety because of lacking inertia and damping. This paper proposes Virtual Synchronous Machine based faster charger control technology for electric vehicle to solve this problem. It mimics the behavior of a synchronous machine to balance the fluctuation of transmission power as well as meet the requirements of faster charging, and it can enhance the inertia and damping of inverter and improve the power quality. Finally, the fast charger for electric vehicle model is built on MATLAB and the simulation results support the validity and correct of the proposed method.

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