电力系统稳定器配置的一种新方法

在应用正则形理论的基础上,提出了计及二阶模式非线性相关作用的电力系统稳定器的配置方法。从识别强非线性下系统主导低频振荡模式出发,寻找与主导低频振荡模式相关的模式,利用非线性相关性来确定与这些模式联系最紧密的状态变量和相关发电机,以此为据来确定电力系统稳定器的配置。八机系统的算例结果都验证了在这些新观点指导下进行电力系统稳定器配置方法的有效性。

An New Algorithm of the Placement of PSS

On the basis of the normal forms theory of vector fields,an new algorithm of the placement of PSS considering second order nonlinearity is presented in this paper.From the identifying the near-resonance modes and the dominant inertial modes ,the critical state variables and related generators are found out by the second order near-resonance modes and nonlinear interaction among modes.The location of the PSS is deter- mined by analyzing the effect of nonlinear interaction in terms of nonlinear interaction index.The correctness and effective of the new viewpoints and the new algorithm are verified by applying on eight -machine test sys- tem.