Characteristic analysis of UHVAC/DC hybrid power grids and construction of power system protection

Yinbiao Shu; Guoping Chen; Zhao Yu; Jianyun Zhang; Chao Wang; Chao Zheng

doi:10.17775/CSEEJPES.2017.00940

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Characteristic analysis of UHVAC/DC hybrid power grids and construction of power system protection

更新时间：2025-12-18

- Characteristic analysis of UHVAC/DC hybrid power grids and construction of power system protection
- Characteristic analysis of UHVAC/DC hybrid power grids and construction of power system protection
- 中国电机工程学会电力与能源系统学报(英文) 2017年3卷第4期页码：325-333
- 作者机构：
  
  1. State Grid Corporation of China,, Beijing, CN,Beijing
  2. China Electric Power Research Institute,Beijing,China,100192
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2017.00940
  中图分类号：
- 纸质出版：2017
- 稿件说明：
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Yinbiao Shu, Guoping Chen, Zhao Yu, 等. Characteristic analysis of UHVAC/DC hybrid power grids and construction of power system protection[J]. 中国电机工程学会电力与能源系统学报(英文), 2017,3(4):325-333.

Yinbiao Shu, Guoping Chen, Zhao Yu, et al. Characteristic analysis of UHVAC/DC hybrid power grids and construction of power system protection[J]. CSEE Journal of Power and Energy Systems, 2017, 3(4): 325-333.
Yinbiao Shu, Guoping Chen, Zhao Yu, 等. Characteristic analysis of UHVAC/DC hybrid power grids and construction of power system protection[J]. 中国电机工程学会电力与能源系统学报(英文), 2017,3(4):325-333. DOI： 10.17775/CSEEJPES.2017.00940.

Yinbiao Shu, Guoping Chen, Zhao Yu, et al. Characteristic analysis of UHVAC/DC hybrid power grids and construction of power system protection[J]. CSEE Journal of Power and Energy Systems, 2017, 3(4): 325-333. DOI： 10.17775/CSEEJPES.2017.00940.

摘要

Abstract

Strong DC coupling with weak AC and large-scale renewable energy integration are the two significant characteristics of ultra-high-voltage AC/DC (UHVAC/DC) hybrid power grids in China. Strong coupling between AC and DC grids and the different integration performance of renewable energy sources have profoundly changed the stability characteristics of the power system. The traditional stability control system is inadequate for the stability control of UHVAC/DC power grids. This paper analyzes the requirements for constructing an integrated defense system in a UHVAC/DC hybrid power grid (i.e. power system protection). The definition

connotation

and designing principles of power system protection are put forward. The relationship between the power system protection and the traditional three-defense lines is investigated. The design principles

general hardware structure and main functions of a power system protection are presented. Key problems and technologies are specified in the construction of the power system protection.

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