The high voltage internal network structure of new energy electric vehicles is complex,and the DC side of each high voltage system component will generate voltage oscillations at different frequencies during operation.These oscillations are coupled and amplified in the high voltage internal network of the vehicle,causing safety hazards such as abnormal overcurrent,component heating,and relay adhesion.This paper analyzes and proposes a ripple immunity testing method for electric drive systems based on typical high voltage ripple data of the entire vehicle under actual driving conditions.A high voltage ripple test method for electric drive systems based on actual vehicle operating conditions data was proposed,with different temperature points determined as environmental loads.The test process and composition of the test system were clarified.
关键词
高压纹波/电驱动系统/试验方法
Key words
high voltage ripple/electric drive system/test method
维普
万方数据