输电线路联合区间振荡阻尼策略  

Research on Inter- area Oscillation Strategy of System Damping for PSS and FACTS Device Based on PMU

作　　者：周术明 余永福 

机构地区：[1]云南恒安电力工程有限公司,昆明650011

出　　处：《云南电力技术》2015年第3期101-104,109,共5页Yunnan Electric Power

摘　　要：建立了并联型与串联型FACTS(灵活交流输电系统)装置在输电线路中模型并推导了其补偿容量对线路输送功率的改变量,进一步证明了FACTS装置能通过改变线路功率来改变各发电机电磁功率从而增加系统阻尼。利用PMU(同步相量测量单元)所测量的联络线的功率变化的广域信号作为PSS(电力系统稳定器)附加阻尼信号,再联合FACTS装置能够增强系统阻尼的功能,使得对本地振荡模式和区间振荡模式均有较好的阻尼效果。建立了两区域MATLAB仿真模型,验证了理论分析的正确性。The article sets up two types FACTS devices model in the transmission fine and derives the compensation capacity to the change of line transmission active capacity. Results prove that FACTS devices can change generator electromagnetic power by changing the line power to increase system damping. Using the wide-area signals which PMU has measured from tie line, as PSS additional damping signals, together with FACTS devices, makes the local oscillation mode and interval oscillation mode all have obvious damping effect. Using MATLAB two area systems verifies the theoretical analysis is correct.

关 键 词：FACTS PSS 区间振荡 

分 类 号：TM75[电气工程—电力系统及自动化]