次同步谐振分析中复转矩系数与特征值之间的关系  

RELATIONSHIP BETWEEN COMPLEX TORQUE COEFFICIENTS AND EIGENVALUES IN SUBSYNCHRONOUS RESONANCE ANALYSIS

作　　者：吕世荣[1] 刘晓鹏[1] 郭强[1] 夏道止[1] 

机构地区：[1]西安交通大学电气工程学院

出　　处：《电力系统自动化》1999年第3期16-18,22,共4页Automation of Electric Power Systems

摘　　要：应用复变函数理论导出了复转矩系数与特征值之间的关系，从而建立了复转矩系数法的理论基础和使用条件。进而提出了一种根据复转矩系数频率扫描的计算结果来估算次同步谐振模式特征值的方法。对ＩＥＥＥ典型算例系统的仿真计算表明，特征值的估算值与其实际值相吻合。The relationship between complex torque coefficients and eigenvalues in subsynchronous resonance analysis isderived by using the complex variable function thoery. The thoeretical basis and the utilization conditions of thecomplex torque coefficient method are established. Furthermore, based on the frequency scan results. an estimation algorithm of eigenvalues corresponding to the subsynchronous resonance modes is proposed. Simulations on IEEE first benchmark system show that the estimated eigenvalues are well consistent with their true values.

关 键 词：电力系统 次同步谐振 复转矩系数法 特征值分析 

分 类 号：TM712[电气工程—电力系统及自动化] TM732