电力系统电压稳定机理及其应用探究  

Study on Power System Voltage Stability Analysis and Application

作　　者：廖怀庆[1,2] 

机构地区：[1]上海市电力公司,上海200122 [2]上海交通大学电气工程系,上海200240

出　　处：《华东电力》2008年第10期39-43,共5页East China Electric Power

摘　　要：在总结国内外较有代表性的几种电压稳定性定义后,对短期电压失稳和长期电压失稳的机理进行分析,探讨了电压稳定性的主要分析方法,总结各种电压稳定性指标的特点,提出了下一步深入研究的方向。针对特大型城市电网的电压稳定性及其控制策略进行了初步探讨。Power system voltage instability or voltage collapse is an important factor in power system instability. Because the suffering blackouts due to voltage collapse accident can cause great economic loss as well as bad influence to the society, it becomes an emergent problem to be solved for the security of power system. Several representative definitions of voltage stability are given, the mechanisms of short term voltage stability and long term voltage stability are analyzed, the main analysis methods of voltage stability are discussed, and different types of voltage stability index are summed, some aspect for further studying are proposed. According to the large scale network for those central metropolis, such as Shanghai power grid, some characteristics as well as measurements to enhance the voltage stability are also discussed.

关 键 词：电力系统 电压稳定 P—U曲线 稳定控制 

分 类 号：TM712[电气工程—电力系统及自动化]