With the rapid growth of EV in the distribution network,the security and stability of the power grid are challenged,hence,friendly power interaction between the power grid and electric vehicles is required.This paper designs an isolated bidi-rectional power converter based on V2G technology,which adopts two-stage topology.The first stage AC-DC uses three-phase bridge structure,and the second stage DC-DC uses dual active bridge structure.The corresponding control strategy is de-signed.The former stage adopts double closed loop and PQ control strategy,and the latter stage adopts single phase shifting control strategy to meet the requirements of bidirectional power flow.The designed converter is combined with the battery for simulation,which verifies that the converter can meet the requirements of bidirectional power flow and battery charging and discharging.
关键词
V2G技术/AC/DC双向变换器/PQ控制/DAB变换器
Key words
V2G technology/AC/DC bidirectional converter/PQ control/dual active bridge converter
维普
万方数据