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

Yongjian ZHI; Deyong YANG; Bingquan ZHU; Keliang YUAN; Zifan GAO; Pengfei LI

doi:10.13890/j.issn.1000-128x.2020.05.012

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

SiC Technology | 更新时间：2021-12-10

- High-frequency Negative Effect Analysis and Countermeasures of Traction Inverter Based on all SiC MOSFET for Rail Transit
- Electric Drive for Locomotives Issue 5, Pages: 49-55(2020)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2020.05.012
  CLC：
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Yongjian ZHI, Deyong YANG, Bingquan ZHU, et al. High-frequency Negative Effect Analysis and Countermeasures of Traction Inverter Based on all SiC MOSFET for Rail Transit. [J]. Electric Drive for Locomotives (5):49-55(2020)
DOI：

Yongjian ZHI, Deyong YANG, Bingquan ZHU, et al. High-frequency Negative Effect Analysis and Countermeasures of Traction Inverter Based on all SiC MOSFET for Rail Transit. [J]. Electric Drive for Locomotives (5):49-55(2020) DOI： 10.13890/j.issn.1000-128x.2020.05.012.

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d,u,/d,t,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。

Abstract

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

Keywords

rail transitSiC MOSFETtraction inverterelectromagnetic interferencemotor overvoltagebearing voltagesimulation

references

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HE J B, LI C, JASSAL A, et al. Multi-domain design optimization of du/dt fi lter for SiC-Based Three-Phase inverters in high-frequency motor-drive applications[C]//IEEE. 2018 IEEE Energy Conversion Congress and Exposition (ECCE). Portland: IEEE, 2018(5): 5215-5222. DOI: 10.1109/ECCE.2018.8557859http://doi.org/10.1109/ECCE.2018.8557859.

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