基于特征值分析法的电力系统稳定性研究  

Research on stability of power system based on eigenvalue analysis method

作　　者：李道霖[1] 张双平[2] 

机构地区：[1]三峡电力职业学院电力工程系,湖北宜昌443000 [2]三峡大学电气与新能源学院,湖北宜昌443002

出　　处：《沈阳工程学院学报（自然科学版）》2010年第4期326-329,共4页Journal of Shenyang Institute of Engineering:Natural Science

摘　　要：在对电力系统次同步振荡(SSO)发生机理进行阐释的基础上,重点就特征值的分析方法和建模进行了详细分析;并对特征值分析法其所需的线性化微分方程进行了推导;最后以具体模型作为研究对象,对该系统的SSO特性进行了分析和仿真,并将分析结果与以前相关文献上做过的分析结果进行了比较,二者较小的误差验证了特征值分析法是一种较为有效的电力系统稳定性问题的研究方法.On the basis of expounding the occurrence mechanism on subsynchronous resonance in power system,the paper focuses on detail analysis of the eigenvalue analysis method and its modeling.Then linear differential equation needed by eigenvalue analysis is derived.Finally,taking the first IEEE benchmark model as a specific study object,the SSO characteristics of this system are analyzed and simulated,and the analysis results are compared with previously related references.The two smaller validation error of the comparison proves the eigenvalue analysis method effective for analysis of SSO problems in power system.

关 键 词：次同步谐振 特征值分析法 线性化微分方程 有效性 

分 类 号：TM721[电气工程—电力系统及自动化]