四相开关磁阻电机的容错型功率变换器  

Fault Tolerant Power Converter for Four-phase Switched Reluctance Motor

作　　者：肖丽[1] 孙鹤旭[1] 刘卫鹏[1] 范书瑞[2] 张培培[1] 

机构地区：[1]河北工业大学控制科学与工程学院,天津300130 [2]河北工业大学信息工程学院,天津300130

出　　处：《北京工业大学学报》2014年第7期1054-1059,共6页Journal of Beijing University of Technology

基　　金：国家科技支撑计划资助项目(2011BAA07B04);河北省自然科学青年基金资助项目(F2013202102)

摘　　要：在功率管发生开路故障时,为了使开关磁阻电机(switched reluctance motor,SRM)功率变换器的电机可继续保持正常功率,基于Maxwell+Simplorer环境,分析了功率变换器主要故障对电机性能的影响,并以不对称半桥型功率变换器为基础,针对功率开关管开路故障,提出了一种容错型功率变换器,即用不相邻正常相桥臂上的器件代替故障器件,有效地隔离了故障元件.结果表明:该功率变换器具有良好的容错性能,能够使电机在故障后继续正常运行.To make the power converter of switched reluctance motor （SRM） continue to maintain the normal power when the open-circuit failure occurs, the effects of main faults of the power converter on motor＇s performances were analyzed in the environment of Maxwell ＋ Simplorer and a fault tolerant power converter based on asymmetric half-bridge power converter was presented, which can make the device with non-adjacent normal phase bridge instead of faulty devices and effectively isolate the faulty devices. Results show that the power converter has good fault-tolerant performance and can enable the motor to operate normally after failure.

关 键 词：容错 功率变换器 不对称半桥型结构 开路故障 开关磁阻电机 

分 类 号：TM352[电气工程—电机]