单相四象限整流器故障诊断方法研究  

Fault Detection Method Research of Single-phase Four-quadrant Rectifier

作　　者：李伟 李颖奇 候雷浩 李军鹏 刘德剑 LI Wei;LI Yingqi;HOU Leihao;LI Junpeng;LIU Dejian(Locomotive and Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;State Key Laboratory for Traction and Control System of EMU and Locomotive,Beijing 100081,China;Beijing Zongheng Electro-mechanical Technology Co.,Ltd.,Beijing 100094,China)

机构地区：[1]中国铁道科学研究院集团有限公司机车车辆研究所,北京100081 [2]动车组和机车牵引与控制国家重点实验室,北京100081 [3]北京纵横机电科技有限公司,北京100094

出　　处：《电气传动》2024年第10期90-96,共7页Electric Drive

基　　金：中国铁道科学研究院集团有限公司科研基金项目(2021YJ245)。

摘　　要：对四象限整流器主电路故障以及相应的影响进行分析和总结,重点针对中间直流环节预充电过程中的电压和电流参数方程进行分析,提出变流器输入电流和中间直流环节电压的估算方法。将估算参数与实际检测结果进行对比,利用不同故障点在预充电过程的表现可以进行相应的故障诊断。通过仿真和试验对不同故障点的工况进行模拟和分析,结果表明提出的故障诊断方法有效可行。The main circuit faults of the four-quadrant rectifier and the corresponding influences were analyzed and summarized,focusing on the analysis of the voltage and current parameter equations in the pre-charging process of the intermediate DC link,and the estimation method of the converter input current and the intermediate DC link voltage was proposed.The estimated parameters were compared with the actual detection results,and the corresponding fault detection can be carried out by using the performance of different faults in the pre-charging process.Through simulation and experiment,different faults were simulated and analyzed,and the results show that the fault detection method proposed is effective and feasible.

关 键 词：四象限整流器 预充电 中间直流环节 故障诊断 

分 类 号：TM28[一般工业技术—材料科学与工程]