电力系统低频振荡机理及抑制  

Analysis and Suppression on Low Frequency Power Swing in Power System

作　　者：张青立[1] 

机构地区：[1]广东电网公司广州供电局

出　　处：《广东输电与变电技术》2011年第1期44-46,49,共4页Guangdong Power Transmission Technology

摘　　要：从状态方程特征值角度分析了低频振荡产生的机理,利用矢量图提出了基于相位补偿的抑制方法。介绍了PSS参数设计过程,采用PSS_E软件对两机系统仿真,直观地说明了PSS在抑制低频振荡方面的作用。最后提出了进一步的研究的建议。With eigenvalue of state equation, the mechanism of low-frequency power swing is analyzed. Basing on phase compensation via vector-graphy analysis, an suppresion method is drawn. Parameters design process of PSS is discussed in detail. Using PSS-E simulation for two-generators system, the result has demonstrated intuitively the significance of PSS in suppressing low frequency power swing. Finally some suggestions are put forth for the further investigation on this topic.

关 键 词：低频振荡 电力系统稳定器(PSS) 负阻尼 

分 类 号：TM712[电气工程—电力系统及自动化]