作　　者： ; ; ; ;

机构地区： 广西大学电气工程学院

出　　处： 《电力系统及其自动化学报》 2009年第6期1-5,共5页

摘　　要： 静止同步补偿器STATCOM是柔性交流输电系统FACTS家族中的重要成员,可有效改善系统电压调节特性,提高系统电压稳定裕度。文章基于特征结构分析法,将STATCOM的稳态模型加入潮流方程中,建立计及STATCOM的电压稳定计算模型。该方法以最小模特征值作为系统接近电压不稳定的量度,以电压灵敏度和参与因子为指标,判断全电网中最有可能发生电压不稳定的节点和区域,从而为STATCOM的配置提供依据。对WSCC-3机9节点系统仿真,验证了STATCOM对电压稳定的积极作用。 As an important member of FACTS, STATCOM （static synchronous compensator） can improve the performance of voltage regulation and voltage stability margin of power grid. On the basis of eigenvalue structure analysis method, the steady state model of STATCOM is added into power flow equations and an voltage stability calculation model that considering STATCOM installation is built. Taking the minimum eigenvalue as a symbol of a weak system, by means of voltage sensitivity and participation factors, this method can find the most unstable node or region of the whole power system, which provides a basis for STATCOM installation. Simulation results of WSCC 3-machine 9-bus system prove that not only the proposed model and method are correct and effective, but STATCOM plays a positive role on voltage stability.

关 键 词： 电压稳定性 静止同步补偿器 最小模特征值 特征结构分析法 柔性交流输电系统

领　　域： [电气工程]