Study on Identification and Optimization for Weak Areas of Static Voltage Stability in DC Multi-infeed Power Grid

ZHANG Wenjia; SUN Wentao; CAI Hui; XIE Zhenjian; LI Haikun; HUANG Junhui

doi:10.13296/j.1001-1609.hva.2017.10.027

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Study on Identification and Optimization for Weak Areas of Static Voltage Stability in DC Multi-infeed Power Grid

更新时间：2025-04-26

- Study on Identification and Optimization for Weak Areas of Static Voltage Stability in DC Multi-infeed Power Grid
- High VoltageApparatus Vol. 53, Issue 10, Pages: 164-169+177(2017)
- 作者机构：
  
  1. 国网江苏省电力公司经济技术研究院
  2. 北京清软创新股份有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.10.027
  CLC： TM712
- Published：2017
- 稿件说明：
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[1]张文嘉,孙文涛,蔡晖,谢珍建,李海坤,黄俊辉.多馈入直流受端电网静态电压稳定的薄弱区域识别及优化研究[J].高压电器,2017,53(10):164-169+177.

ZHANG Wenjia, SUN Wentao, CAI Hui, et al. Study on Identification and Optimization for Weak Areas of Static Voltage Stability in DC Multi-infeed Power Grid[J]. High voltageapparatus, 2017, 53(10): 164-169+177.
[1]张文嘉,孙文涛,蔡晖,谢珍建,李海坤,黄俊辉.多馈入直流受端电网静态电压稳定的薄弱区域识别及优化研究[J].高压电器,2017,53(10):164-169+177. DOI： 10.13296/j.1001-1609.hva.2017.10.027.

ZHANG Wenjia, SUN Wentao, CAI Hui, et al. Study on Identification and Optimization for Weak Areas of Static Voltage Stability in DC Multi-infeed Power Grid[J]. High voltageapparatus, 2017, 53(10): 164-169+177. DOI： 10.13296/j.1001-1609.hva.2017.10.027.

摘要

多馈入直流受端系统在高压输电系统中逐渐增多

故障情况下大范围潮流转移将对受端电网的电压稳定构成冲击

严重情况下

甚至会造成电压崩溃。针对多馈入直流受端电网静态电压稳定性

提出了一种综合应用连续潮流法、严重故障筛选法、模态分析法快速求取静态电压稳定极限、节点相对参与因子等指标开展薄弱区域识别的方法。应用于江苏南部受端电网

并针对薄弱区域提出了电压稳定提升措施。计算结果显示

江苏南部受端电网静态电压稳定薄弱区域位于苏州电网及锦苏特高压直流近区

在电压稳定薄弱区域安装STATCOM

能够更好地提升苏南直流受端电网电压稳定性。

Abstract

The DC multi-infeed receiving-end power grid is gradually increasing in the high-voltage transmission system.Serious failure may lead to large-scale power flow transfer

which will impact voltage stability of the receivingend power grid.In serious cases

it will even cause the voltage to collapse.In this paper

a method of weak areas identification using static voltage limit power and node relative participation factor based on continuation power flow

severe failure set and modal analysis is proposed.This method is applied to the southern Jiangsu.A voltage stability optimization measure is put forward.The calculation results show that the weak areas in southern Jiangsu are located in Suzhou power grid and the region of Jinsu UHVDC.The voltage stability of the DC multi-infeed receivingend power grid can be better improved by installing the dynamic reactive power compensation device in the weak areas.

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