电力系统低频振荡  

Low Frequency Oscillation in Power System

作　　者：郭权利[1] 

机构地区：[1]沈阳工程学院电气工程系,辽宁沈阳110136

出　　处：《电力系统保护与控制》2008年第22期114-116,119,共4页Power System Protection and Control

摘　　要：由于系统缺乏阻尼或系统负阻尼引起的输电线路上的功率波动频率一般在0.1～2.0Hz之间,通常称之为低频振荡。随着电力系统规模的不断扩大和快速励磁系统的大量应用,电网的低频振荡问题越来越引起人们的关注。低频振荡影响电力系统稳定性和继电保护装置的可靠性。介绍了低频振荡的一些概念、各种机理、研究现状、常用的分析方法和控制方法,并对以后的工作重点做了进一步的阐述。Because of the lack of damping system or negative damping system on the transmission line caused power fluctuations generally between 0.1-2.0 Hz, usually called as low-frequency oscillations. With the development of the size of the power system and large applicationl of the rapid excitation system, the low-frequency oscillation （LFO） of the power system are causing for more and more concern. And low-frequency oscillation affect the stability of the power system and the reliability of the relay device. This text introduces the concept of low-frequency oscillations, all kinds of mechanism and research status, analysis and control methods, and elaborate the focus of the work for a further step.

关 键 词：低频振荡 频率波动 负阻尼 分析方法 电力系统 

分 类 号：TM712[电气工程—电力系统及自动化]