Double-Ended Fast Protection System Independent of LCC-VSC-MTDC in Boundary Components

Dahai Zhang; Chuanjian Wu; Pinghao Ni; Jinghan He

doi:10.17775/CSEEJPES.2021.05810

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Double-Ended Fast Protection System Independent of LCC-VSC-MTDC in Boundary Components

Regular Papers | 更新时间：2026-02-06

- Double-Ended Fast Protection System Independent of LCC-VSC-MTDC in Boundary Components
- Double-Ended Fast Protection System Independent of LCC-VSC-MTDC in Boundary Components
- 中国电机工程学会电力与能源系统学报(英文) 2025年11卷第4期页码：1544-1555
- 作者机构：
  
  School of Electrical Engineering, Beijing Jiaotong University,Beijing,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2021.05810
  中图分类号：
- 纸质出版：2025
- 稿件说明：
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Dahai Zhang, Chuanjian Wu, Pinghao Ni, 等. Double-Ended Fast Protection System Independent of LCC-VSC-MTDC in Boundary Components[J]. 中国电机工程学会电力与能源系统学报(英文), 2025,11(4):1544-1555.

Dahai Zhang, Chuanjian Wu, Pinghao Ni, et al. Double-Ended Fast Protection System Independent of LCC-VSC-MTDC in Boundary Components[J]. CSEE Journal of Power and Energy Systems, 2025, 11(4): 1544-1555.
Dahai Zhang, Chuanjian Wu, Pinghao Ni, 等. Double-Ended Fast Protection System Independent of LCC-VSC-MTDC in Boundary Components[J]. 中国电机工程学会电力与能源系统学报(英文), 2025,11(4):1544-1555. DOI： 10.17775/CSEEJPES.2021.05810.

Dahai Zhang, Chuanjian Wu, Pinghao Ni, et al. Double-Ended Fast Protection System Independent of LCC-VSC-MTDC in Boundary Components[J]. CSEE Journal of Power and Energy Systems, 2025, 11(4): 1544-1555. DOI： 10.17775/CSEEJPES.2021.05810.

摘要

Abstract

Hybrid DC transmission technology is used in new energy transmission due to its advantages of large capacity and long distances. Line-commutated converter-voltage source converter-multi-terminal DC (LCC-VSC-MTDC) is one of the more important development directions in future power grids. But the multi-terminal high voltage direct current system has problems of inconsistent boundary characteristics

inconsistent control

and fault response characteristics

which places higher requirements on the protection scheme. A protection scheme based on the undistorted factor is proposed to ensure the safe operation of the system. First

the inconsistent line mode voltage attenuation characteristics of different fault locations are used to construct the undistorted factor. Subsequently

the undistorted factor is used to identify fault. The advantage of this scheme is that it remains unaffected by boundary elements

control strategies

and distributed capacitance. Finally

the LCC-VSC-MTDC model verifies the correctness and superiority of the proposed protection scheme.

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