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Study on Steady State Voltage Stability of Power System Containing Wind Farm Based on Bifurcation Theory
Author(s): 
Pages: 74-79
Year: Issue:  9
Journal: POWER SYSTEM TECHNOLOGY

Keyword:  风电场电压稳定鞍结分岔延拓法直接法;
Abstract: 为揭示含风电场电力系统静态电压稳定机理以及由于风电注入引起系统电压稳定性和解的结构变化过程,采用了分岔分析方法对风电场并入3节点简单电力系统进行了分析研究.以风电场注入有功功率为控制参数,进行了单参数电压稳定性分岔分析.在单参数分析的基础上引入无功补偿作为第二个控制参数,进行了双参数制约性分析和双参数分岔边界的确定.研究表明:在缺乏无功补偿的情况下,系统运行在较低的电压水平;当对系统进行有效电容补偿时,系统各节点的电压和鞍结分岔点的电压均得到有效提升,并且无功补偿增加了系统注入功率极限,有效扩展了鞍结分岔的边界;在高功率的风电注入情况下,系统会发生电压崩溃.
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