一种提高电力系统静态电压稳定裕度的切负荷算法

doi:10.3969/j.issn.1000-7229.2014.09.013

电力建设 ›› 2014, Vol. 35 ›› Issue (9): 71-75.doi: 10.3969/j.issn.1000-7229.2014.09.013

一种提高电力系统静态电压稳定裕度的切负荷算法

傅旭1,付翀丽2,黄明良1

1.西北电力设计院，西安市 710075;2. 西安微电子技术研究所，西安市 710054

出版日期:2014-09-01
作者简介:傅旭（1976），男，博士，高级工程师，注册咨询工程师，从事电力系统规划分析方面的研究工作，E-mail: fuxu@nwepdi.com; 付翀丽（1978），女，硕士，高级工程师，从事电力电子技术及电路的研发工作; 黄明良（1964），男，教授级高工，从事电力系统规划设计方面的工作。

A New Load Shedding Algorithm to Improve Static Voltage Stability Margin for Power System

FU Xu1, FU Chongli2, HUANG Mingliang1

1. Northwest Electric Power Design Institute, Xi’an 710075, China;2.Xi’an Micro-electronics Technology Research Institute, Xi’an 710054, China

Online:2014-09-01

摘要/Abstract

摘要： 电力系统运行过程中发现静态电压稳定裕度低于临界值时，应及时采取控制措施以提高静态电压稳定裕度。给出一种电力系统静态电压稳定裕度的在线估计和提高静态电压稳定裕度的切负荷算法。该方法首先利用节点静态电压稳定指标（voltage stability index，VSI）识别出系统的薄弱节点,然后通过电压幅值优化来提高薄弱节点的电压幅值进而达到提高静态电压稳定裕度的目的。我国某实际682节点系统的仿真表明所提切负荷方法具有计算量小、速度快等特点。

关键词: 静态电压稳定裕度, 切负荷, 静态电压稳定指标

Abstract: When the static voltage stability margin is below some threshold during the operation of power system, control actions should be timely adapted to improve static voltage stability margin. A load shedding method was proposed for the on-line estimation and improvement of static voltage stability margin in power system. In this method, the node static voltage stability index （VSI） was used to identify the weak nodes, and the voltage amplitude of weak nodes was raised though the optimization, in order to improve the static voltage stability margin. Through the simulation of a real 682-bus system in China, it is showed that the proposed method has the characteristics of small amount of calculation, fast speed, etc.

Key words: static voltage stability margin, load shedding, static voltage stability index

傅旭,付翀丽,黄明良. 一种提高电力系统静态电压稳定裕度的切负荷算法[J]. 电力建设, 2014, 35(9): 71-75.

FU Xu, FU Chongli, HUANG Mingliang. A New Load Shedding Algorithm to Improve Static Voltage Stability Margin for Power System[J]. ELECTRIC POWER CONSTRUCTION, 2014, 35(9): 71-75.

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一种提高电力系统静态电压稳定裕度的切负荷算法

A New Load Shedding Algorithm to Improve Static Voltage Stability Margin for Power System

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