Compound Line-Commutated Converter with Commutation Voltage Compensation and Power Consumption Capability for Commutation Failure Suppression

Chunyi Guo; Zhenggang Hai; Chengyong Zhao; Chongru Liu

doi:10.17775/CSEEJPES.2021.06790

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Compound Line-Commutated Converter with Commutation Voltage Compensation and Power Consumption Capability for Commutation Failure Suppression

Regular Papers | 更新时间：2026-10-16

- Compound Line-Commutated Converter with Commutation Voltage Compensation and Power Consumption Capability for Commutation Failure Suppression
- Compound Line-Commutated Converter with Commutation Voltage Compensation and Power Consumption Capability for Commutation Failure Suppression
- 中国电机工程学会电力与能源系统学报(英文) 2025年11卷第5期页码：2339-2348
- 作者机构：
  
  State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University,Beijing,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2021.06790
  中图分类号：
- 纸质出版：2025-09-01
- 稿件说明：
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Chunyi Guo, Zhenggang Hai, Chengyong Zhao, 等. Compound Line-Commutated Converter with Commutation Voltage Compensation and Power Consumption Capability for Commutation Failure Suppression[J]. 中国电机工程学会电力与能源系统学报(英文), 2025,11(5):2339-2348.

Chunyi Guo, Zhenggang Hai, Chengyong Zhao, et al. Compound Line-Commutated Converter with Commutation Voltage Compensation and Power Consumption Capability for Commutation Failure Suppression[J]. CSEE Journal of Power and Energy Systems, 2025, 11(5): 2339-2348.
Chunyi Guo, Zhenggang Hai, Chengyong Zhao, 等. Compound Line-Commutated Converter with Commutation Voltage Compensation and Power Consumption Capability for Commutation Failure Suppression[J]. 中国电机工程学会电力与能源系统学报(英文), 2025,11(5):2339-2348. DOI： 10.17775/CSEEJPES.2021.06790.

Chunyi Guo, Zhenggang Hai, Chengyong Zhao, et al. Compound Line-Commutated Converter with Commutation Voltage Compensation and Power Consumption Capability for Commutation Failure Suppression[J]. CSEE Journal of Power and Energy Systems, 2025, 11(5): 2339-2348. DOI： 10.17775/CSEEJPES.2021.06790.

摘要

Abstract

To mitigate commutation failures (CFs) of a line-commutated converter based-high voltage direct current transmission system (LCC-HVDC)

an evolved thyristor based full bridge sub-module (ET-FBSM) and a compound LCC (CLCC) topology are proposed with the capability of commutation voltage compensation and DC power consumption. Under AC fault conditions

additional commutation voltage for LCC can be compensated

and rise of DC current can be suppressed

by switching the control modes of ET-FBSM

to reduce risks of CFs and improve the dynamic characteristics of LCC-HVDC systems. In this paper

working modes of the ET-FBSM and a coordinated control strategy between ET-FBSM and converter valve are presented

and the parameter selection approach for the ET-FBSM is provided. Then

a CLCC-HVDC system with ET-FBSMs embedded in the inverter station is developed in PSCAD/EMTDC to verify effectiveness of the proposed topology. Simulation results show the proposed topology can significantly reduce risks of CFs and improve dynamic performances of the overall system.

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