基于IGBT 输出功率的逆变器开路故障诊断方法 - 电网技术.PDF

第37 卷 第4 期 电 网 技 术 Vol. 37 No. 4 2013 年4 月 Power System Technology Apr. 2013 文章编号：1000-3673 （2013 ）04-1140-06 中图分类号：TM 64 文献标志码：A 学科代码：470·4051 基于 IGBT 输出功率的逆变器开路故障诊断方法 1 1 1 1 2 赏吴俊 ，何正友 ，胡海涛 ，母秀清 ，林建辉 （1．西南交通大学 电气工程学院，四川省 成都市 610031 ； 2．西南交通大学 牵引动力国家重点实验室，四川省 成都市 610031 ） An IGBT Output Power-Based Diagnosis of Open-Circuit Fault in Inverter 1 1 1 1 2 SHANG Wujun , HE Zhengyou , HU Haitao , MU Xiuqing , LIN Jianhui (1. School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan Province, China; 2. State Key Laboratory of Traction Power (Southwest Jiaotong University), Chengdu 610031, Sichuan Province, China) ABSTRACT: It is of crucial importance for the running and 以对逆变器中的IGBT 开路故障进行诊断。算例结果表明所 maintenance of subway to diagnose the fault occurred in 提方法的有效性。 auxiliary inverter in time, especially, during the running of 关键词：逆变器；绝缘栅双极型晶体管；IGBT 开路故障； subway trains both security and reliability of the running can IGBT 输出功率；正负半波电流对应功率 be improve if the fault occurred in auxiliary inverters installed on the train could be detected and diagnosed timely. In allusion 0 引言 to the open-circuit fault in the insulated gate bipolar transistor 辅助供电系统是车辆牵引控制系统的重要组 (IGBT) of the inverter, the flow direction and corresponding power of positive- and negative-half-wav