电动汽车高压系统电压匹配的研究  

Research on Voltage Matching for High-voltage System of Electric Vehicles

作　　者：石春 谢成冬 SHI Chun;XIE Cheng-dong(BYD Auto Industry Company Limited,Shenzhen 518118,China)

机构地区：[1]比亚迪汽车工业有限公司,广东深圳518118

出　　处：《电力电子技术》2024年第12期54-57,61,共5页Power Electronics

摘　　要：电动汽车高压系统架构设计时,容易忽略电压平台的匹配或评估不充分,导致电动汽车在各种复杂运行工况下损坏产品。此处介绍了电动汽车高压系统中各种电压以及匹配方法,重点说明了永磁同步电机在运行时产生的反电动势和抛载电压及其对高压系统的影响,并通过举例说明了相应的设计考虑。When designing the high-voltage system architecture of electric vehicles,it is easy to overlook the matching of voltage platforms or insufficient evaluation,resulting in damaging products under various complex driving conditions.Various voltages and matching methods in the high-voltage system of electric vehicles are introduced,focusing on the back electromotive force and load dump voltage generated by permanent magnet synchronous motors during operation and their impact on the high-voltage system.Through examples,corresponding design considerations are explained.

关 键 词：永磁同步电机 高压系统 反电动势 抛载电压 

分 类 号：TM341[电气工程—电机]