Adaptive restarting method for LCC-HVDC based on principle of fault location by current injection

Ruidong Xu; Guobing Song; Junjie Hou; Zhongxue Chang

doi:10.1016/j.gloei.2022.01.010

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Adaptive restarting method for LCC-HVDC based on principle of fault location by current injection

Protection and Control Technologies of New Power System | 更新时间：2026-09-21

- Adaptive restarting method for LCC-HVDC based on principle of fault location by current injection
- Adaptive restarting method for LCC-HVDC based on principle of fault location by current injection
- 全球能源互联网(英文) 2021年4卷第6期页码：554-563
- 作者机构：
  
  1. School of Electrical Engineering, Xi’an Jiaotong University,Xi’an,PR China,710049
  2. Shaanxi Province Key Laboratory of Smart Grid,Xi’an,PR China,710049
- 作者简介：
- 基金信息：
- DOI：10.1016/j.gloei.2022.01.010
  中图分类号：
- 网络首发：2022-03-08，
  
  纸质出版：2021
- 稿件说明：
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Ruidong Xu, Guobing Song, Junjie Hou, 等. Adaptive restarting method for LCC-HVDC based on principle of fault location by current injection[J]. 全球能源互联网(英文), 2021,4(6):554-563.

Ruidong Xu, Guobing Song, Junjie Hou, et al. Adaptive restarting method for LCC-HVDC based on principle of fault location by current injection[J]. Global Energy Interconnection, 2021, 4(6): 554-563.
Ruidong Xu, Guobing Song, Junjie Hou, 等. Adaptive restarting method for LCC-HVDC based on principle of fault location by current injection[J]. 全球能源互联网(英文), 2021,4(6):554-563. DOI： 10.1016/j.gloei.2022.01.010.

Ruidong Xu, Guobing Song, Junjie Hou, et al. Adaptive restarting method for LCC-HVDC based on principle of fault location by current injection[J]. Global Energy Interconnection, 2021, 4(6): 554-563. DOI： 10.1016/j.gloei.2022.01.010.

摘要

Abstract

The existing LCC-HVDC transmission project adopts the fixed-time delay restarting method. This method has disadvantages such as non-selectivity

long restart process

and high probability of restart failure. These issues cause a secondary impact on equipment and system power fluctuation. To solve this problem

an adaptive restarting method based on the principle of fault location by current injection is proposed. First

an additional control strategy is proposed to inject a current detection signal. Second

the propagation law of the current signal in the line is analyzed based on the distributed parameter model of transmission line. Finally

a method for identifying fault properties based on the principle of fault location is proposed. The method fully considers the influence of the long-distance transmission line with earth capacitance and overcomes the influence of the increasing effect of the opposite terminal. Simulation results show that the proposed method can accurately identify the fault properties under various complex fault conditions and subsequently realize the adaptive restarting process.

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