柔性直流换流阀IGBT过流失效研究

doi:10.11930/j.issn.1004-9649.202006217

中国电力 ›› 2021, Vol. 54 ›› Issue (1): 70-77.DOI: 10.11930/j.issn.1004-9649.202006217

• 国家“十三五”智能电网重大专项专栏：（四）柔性直流电网技术、装备与工程 • 上一篇下一篇

柔性直流换流阀IGBT过流失效研究

冯静波¹, 吕铮¹, 邓卫华², 胡榕², 王新颖¹

1. 先进输电技术国家重点实验室（全球能源互联网研究院有限公司），北京 102209;
2. 大功率电力电子北京市重点实验室，北京 102209

收稿日期:2020-06-23 修回日期:2020-10-29 出版日期:2021-01-05 发布日期:2021-01-11
作者简介:冯静波(1984—)，男，工程师，从事柔性直流输电换流阀电气设计及试验研究，E-mail：fengjingbo0443@163.com
基金资助:
国家电网有限公司科技项目（柔性直流换流阀电磁干扰特性与电磁兼容技术，SGZJ000KXJS1900295）

Study on the IGBT Overcurrent Failure of VSC-HVDC Converter Valve

FENG Jingbo¹, LV Zheng¹, DENG Weihua², HU Rong², WANG Xinying¹

1. State Key Laboratory of Advanced Power Transmission Technology (Global Energy Interconnection Research Institute Co., Ltd.), Beijing 102209, China;
2. Beijing Key Laboratory of High Power Electronics, Beijing 102209, China

Received:2020-06-23 Revised:2020-10-29 Online:2021-01-05 Published:2021-01-11
Supported by:
This work is supported by Science and Technology Project of State Grid Corporation of China (Electromagnetic Interference Characteristics and Electromagnetic Compatibility Technology of VSC-HVDC Valve, No.SGZJ000KXJS1900295)

摘要/Abstract

摘要： IGBT过流失效极易导致模块爆炸、水冷系统漏水甚至换流阀停运，是危害柔性直流输电系统安全运行的重要因素之一。基于模块多电平柔性直流换流阀结构特点和运行工况，总结分析了柔性直流换流阀IGBT的短路过电流、脉冲式过电流和续流二极管过电流这3种过流失效类型及其特征；结合MMC换流阀的工作原理及特点，提出了IGBT 3种过流方式的保护方案及参数配置方法；通过±420 kV/1250 MW换流阀采用的3300 V/1500 A焊接型IGBT器件进行了失效分析与保护方案的试验验证，试验结果证明了过流失效分析的正确性和过电流保护方案的有效性。

关键词: 柔性直流换流阀, IGBT, 过流失效, 过流保护, 保护方案

Abstract: IGBT overcurrent failure, which is one of the important factors harming VSC-HVDC safe operation, can easily lead to module explosion, water cooling system leakage and even the converter valve shutdown. Based on the structural characteristics and operating conditions of the module multilevel VSC-HVDC converter valve, the paper analyzes the characteristics of three types of IGBT overcurrent failures of the VSC-HVDC converter valve, including short-circuit overcurrent, pulse over current, as well as fly-wheeling diode overcurrent. According to the working principle and characteristics of the MMC converter valve, three IGBT protection schemes and their parameter configuration methods are put forward. The IGBT (3300 V/1500 A) adopted in a converter valve of ±420 kV/1250 MW is used for overcurrent failure analysis and protection scheme verification, and the test results prove the correctness of the proposed overcurrent failure analysis method and the effectiveness of the overcurrent protection scheme.

Key words: VSC-HVDC converter valve, IGBT, over-current failure, over-current protection, protection scheme

冯静波, 吕铮, 邓卫华, 胡榕, 王新颖. 柔性直流换流阀IGBT过流失效研究[J]. 中国电力, 2021, 54(1): 70-77.

FENG Jingbo, LV Zheng, DENG Weihua, HU Rong, WANG Xinying. Study on the IGBT Overcurrent Failure of VSC-HVDC Converter Valve[J]. Electric Power, 2021, 54(1): 70-77.

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https://www.electricpower.com.cn/CN/Y2021/V54/I1/70

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柔性直流换流阀IGBT过流失效研究

Study on the IGBT Overcurrent Failure of VSC-HVDC Converter Valve

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