Simulation Analysis of Voltage Fluctuation at the Sending End of UHVDC System Caused by Commutation Failure

被引：0

作者：

Niu, Yukun ^{[1
]}

Wen, Jun ^{[1
]}

Wang, Shujie ^{[1
]}

Ma, Limin ^{[1
]}

机构：

[1] North China Elect Power Univ, Sch Elect & Elect Engn, Beijing, Peoples R China

来源：

2021 3RD ASIA ENERGY AND ELECTRICAL ENGINEERING SYMPOSIUM (AEEES 2021) | 2021年

关键词：

UHVDC; commutation failure; reactive power; sending end grid; voltage fluctuation;

D O I：

10.1109/AEEES51875.2021.9402962

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Commutation failure is an inherent defect of UHVDC. Starting from a commutation failure, this paper leads to the problem of voltage fluctuation at the sending end of power grid caused by commutation failure. Based on Lingzhou-Shaoxing UHVDC project, the model is built on PSCAD / EMTDC simulation platform. Based on the simulation results, the relationship between the change of electrical quantities and the change of converter bus voltage after commutation failure is described in three stages: converter bus voltage sag stage, converter bus voltage surge stage and converter bus voltage recovery stage, and the mechanism of voltage fluctuation caused by commutation failure is analyzed. The results show that during the commutation failure, the reactive power exchanged between the rectifier station and the grid at the sending end changes greatly, which leads to the fluctuation of the bus voltage at the sending end.

引用

页码：15 / 19

页数：5

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