摘要
不同的负荷节点对电压稳定性具有不同的影响程度。应用向量场正规形理论,分析电力系统潮流方程。提出以节点电压非线性参与因子作为依据,衡量负荷节点对电压稳定性的影响程度。所提出的方法可计及电力系统非线性特性对电压稳定性的影响,与线性化分析方法相比,该方法在系统具有强非线性特性的条件下,仍能准确识别负荷节点的重要程度。将所提出的方法用于New England 39节点系统,研究系统中负荷节点对电压稳定性的影响,通过对系统电压稳定性指标的比较,验证所提出方法的有效性。
Load buses play different roles to power system voltage stability. The theory of normal forms of vector fields was used to analyze the power system power flow equation, and a method to measure the influence of load buses on voltage stability is proposed. The method makes use of the nonlinear participation factors and consequently the effect of power system nonlinearity on system voltage stability can be considered. As a result, the impact of load buses can be determined, even when the system is characterized by strong nonlinearity. The method was applied to New England 39-bus system and the results show its effectiveness.
出处
《华东电力》
北大核心
2008年第4期27-30,共4页
East China Electric Power
基金
国家自然科学基金项目(50595410)
国家重点基础研究发展计划项目(973项目)(2004CB217906)
关键词
电力系统
向量场正规形
非线性系统
参与因子
无功补偿
power system
normal form of vector field
nonlinear system
participation factor
reactive power corf^nsation
