A back-to-back VSC-HVDC system of Yu-E power transmission lines to improve cross-region capacity

Yinbiao Shu; Guangfu Tang; Hui Pang

doi:10.17775/CSEEJPES.2018.01280

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A back-to-back VSC-HVDC system of Yu-E power transmission lines to improve cross-region capacity

更新时间：2025-12-19

- A back-to-back VSC-HVDC system of Yu-E power transmission lines to improve cross-region capacity
- CSEE Journal of Power and Energy Systems Vol. 6, Issue 1, Pages: 64-71(2020)
- 作者机构：
  
  1. China Huaneng Group Co., Ltd.,Beijing,China
  2. Global Energy Interconnection Research Institute Co., Ltd.,Beijing,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2018.01280
  CLC：
- Published：2020
- 稿件说明：
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Yinbiao Shu, Guangfu Tang, Hui Pang. A back-to-back VSC-HVDC system of Yu-E power transmission lines to improve cross-region capacity[J]. CSEE Journal of Power and Energy Systems, 2020, 6(1): 64-71.
DOI：

Yinbiao Shu, Guangfu Tang, Hui Pang. A back-to-back VSC-HVDC system of Yu-E power transmission lines to improve cross-region capacity[J]. CSEE Journal of Power and Energy Systems, 2020, 6(1): 64-71. DOI： 10.17775/CSEEJPES.2018.01280.

摘要

Abstract

With the rapid development of hydropower in the southwest of China

the energy transmitted by ultra high voltage direct current (UHVDC) is ever increasing. At the same time

the power grid continues to expand westward

creating a service area. The stability of the Southwest China Power Grid is becoming a major issue. It is necessary to coordinate the development of hydropower and the construction of cross-region interconnections to optimize the grid structure. The Yu-E denotes the connection between the two region Yu (Chongqing) and E (Hubei) in China. The Yu-E project is a back-to-back voltage source converter based high voltage direct current (VSC-HVDC) project designed to realize an asynchronous connection of the Southwest and Central China Power Grids. The project will improve the bi-directional power support capability and optimize the grid structure. In addition

the Yu-E project will improve hydropower cross-region transmission capacity and enable the Southwest China Power Grid to utilize the power from the Three Gorges in the Central China Power Grid. In this paper

the fault isolation

low-frequency oscillation

sub-synchronous oscillation and short-circuit level are investigated and analyzed. Meanwhile

the impact of the Yu-E project on AC systems is studied in detail. In the end

the overall system design of the Yu-E project is introduced. The research results show that the Yu-E project can increase the transmission capability of the Southwest and Central China Power Grids

and enhance the stability of asynchronously interconnected AC systems. At the same time

the Yu-E project also serves as a demonstration project for the future development and application of VSC technology for the world.

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