高速列车牵引整流器多类故障联合诊断方法  

Joint Fault Diagnosis Method of Multiclass Faults for Traction Rectifier in High-speed Train

作　　者：陶宏伟[1,2] 彭涛[1,2] 杨超[1,2] 陈志文[1,2] 桂卫华[1] TAO Hong-Wei;PENG Tao;YANG Chao;CHEN Zhi-Wen;GUI Wei-Hua(School of Automation,Central South University,Changsha 410083;Hunan Provincial Key Laboratory of Energy Saving Control and Satety Monitoring of Rail Transit,Central South University,Changsha 410083)

机构地区：[1]中南大学自动化学院,长沙410083 [2]中南大学轨道交通节能控制与安全监测湖南省重点实验室,长沙410083

出　　处：《自动化学报》2019年第12期2294-2302,共9页Acta Automatica Sinica

基　　金：国家自然科学基金(61490702,61773407,61621062,61803390);轨道交通节能控制与安全监测湖南省重点实验室(2017TP1002);装备预研教育部联合基金(6141A02022110);装备预研领域基金(61400030501);博士后基金(2018M643000);湖南省研究生科研创新项目(CX20190064,CX2018B041)资助~~

摘　　要：提出了一种高速列车牵引整流器多类故障联合诊断方法.首先,基于三电平牵引整流器开路故障分析,建立整流器所有功率器件开路故障以及正常运行的状态空间模型并构建相应状态观测器.然后,基于正常状态观测器进行故障检测,检测到故障后,基于故障观测器区分功率器件开路故障和网侧电流传感器故障,进而诊断出功率器件开路故障位置和网侧电流传感器故障类型.实时仿真结果验证了本文方法的正确性和有效性.A joint fault diagnosis method of multiclass faults for the traction rectifier in high-speed train is proposed.First of all,based on open-circuit fault analysis of three-level traction rectifier,the state space models of rectifier operating in the normal condition and abnormal conditions that open-circuit fault happened in all power devices are built respectively.The corresponding state observers are established as well.Next the fault is detected by the normal state observer,open-circuit faults in power devices and grid side current sensor faults are distinguished by the fault state observers.Then the open-circuit fault location of power devices and fault type of grid side current sensor are obtained.The feasibility and effectiveness of the proposed method are verified by the real-time simulation results.

关 键 词：开路故障 传感器故障 联合诊断 牵引整流器 高速列车 

分 类 号：TM4[电气工程—电器]