柔直换流阀IGBT短路失效建模方法及应用

MAO Yu; ZHOU Guowei; ZHAO Ziyun; SUN Haifeng; WANG Litong

doi:10.13336/j.1003-6520.hve.20251339

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柔直换流阀IGBT短路失效建模方法及应用

更新时间：2026-10-20

- 柔直换流阀IGBT短路失效建模方法及应用
- Vol. 52, Issue 8, Pages: 3685-3700(2026)
- 作者机构：
  
  1. 华北电力大学电力工程系
  2. 国网浙江省电力有限公司超高压分公司,杭州,310007
- 作者简介：
- 基金信息：
- DOI：10.13336/j.1003-6520.hve.20251339
  CLC：
- Received：31 August 2026，
  
  Published：2026
- 稿件说明：
移动端阅览
MAO Yu, ZHOU Guowei, ZHAO Ziyun, et al. 柔直换流阀IGBT短路失效建模方法及应用[J]. 2026, 52(8): 3685-3700.
DOI：

MAO Yu, ZHOU Guowei, ZHAO Ziyun, et al. 柔直换流阀IGBT短路失效建模方法及应用[J]. 2026, 52(8): 3685-3700. DOI： 10.13336/j.1003-6520.hve.20251339.

摘要

柔性直流输电技术是未来电网的发展方向，绝缘栅双极晶体管(insulated gate bipolar transistor，IGBT)是换流器内部最重要的核心器件，也是最容易失效的部件之一。短路失效是其最常见的故障，需要开展多物理场下的建模研究。为了刻画柔直换流系统的故障状态，建立换流系统仿真模型，得到了换流阀故障时的电压及电流参数，作为IGBT短路失效的条件。为了从单个元件的角度对IGBT的短路失效进行刻画，结合多物理场耦合理论，建立计及温度效应的IGBT多物理场耦合模型。通过换流阀故障参数对IGBT模型进行相应的参数设置，模拟短路失效。最后，通过模拟结果得到短路失效过程中IGBT各个参数的变化。该文建立的IGBT短路失效模型，有效性得到验证，为柔性直流输电的可靠运行提供了理论基础。

Abstract

Flexible DC transmission technology is the future direction of power grid development. IGBT is the most crucial core component within the converter and also one of the most susceptible to failure. Short-circuit failure is its most common fault

necessitating modeling research under multiple physical fields. To characterize the fault state of the flexible DC converter system

a simulation model of the converter system was established

and the voltage and current parameters during converter valve faults were obtained

serving as the conditions for IGBT short-circuit failure. In order to characterize the short-circuit failure of IGBT from the perspective of a single component

combined with the multi physical field coupling theory

a multi physical field coupling model of IGBT considering the temperature effect was established. Through the fault parameters of converter valve

the corresponding parameters of IGBT model are set to simulate short-circuit failures. Finally

the changes of IGBT parameters in the process of short-circuit failure are obtained through the simulation results. The IGBT short-circuit failure model established in this paper has been verified for its effectiveness

providing a theoretical basis for the reliable operation of flexible DC transmission.

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