基于全SiC MOSFET的轨道交通牵引逆变器高频负面效应分析及其应对策略  

High-frequency Negative Effect Analysis and Countermeasures of Traction Inverter Based on all SiC MOSFET for Rail Transit

作　　者：支永健 杨德勇 朱柄全 袁科亮 高子凡 李鹏飞 ZHI Yongjian;YANG Deyong;ZHU Bingquan;YUAN Keliang;GAO Zifan;LI Pengfei(CRRC ZIC Research Institute of Electrical Technology&Material Engineering,Zhuzhou,Hunan 412001,China;Xuchang Electric Vocational College,Xuchang,Henan 461000,China)

机构地区：[1]中车株洲所电气技术与材料工程研究院,湖南株洲412001 [2]许昌电气职业学院,河南许昌461000

出　　处：《机车电传动》2020年第5期49-55,共7页Electric Drive for Locomotives

摘　　要：分析了轨道交通用牵引变流器采用SiC器件后,功率开关器件的高开关速度和高开关频率会给牵引系统设计带来负面问题。结合理论分析和实测结果,对采用全SiC MOSFET与传统Si基IGBT器件在牵引逆变系统电磁干扰、电机端的电压变化率du/dt和过电压、电机轴承电压等方面进行对比分析;针对SiC MOSFET带来的负面效应提出相应的抑制策略,满足既有牵引系统应用要求。After the adoption of SiC device in traction converter for rail transit, the design of traction system will be negatively affected by the high switching speed and high switching frequency of power switch devices. Combined with theoretical analysis and practical measurement, the influences of SiC and IGBT devices on electromagnetic interference, motor end du/dt, over-voltage and motor bearing voltage of traction inverter system were compared. Finally, the corresponding suppression strategies were proposed to meet existing traction system application requirements in view of the negative effects of SiC MOSFET.

关 键 词：轨道交通 SiC MOSFET 牵引逆变器 电磁干扰 电机侧过电压 轴承电压 仿真 

分 类 号：U264.372[机械工程—车辆工程] TN304.24[交通运输工程—载运工具运用工程]