电力系统低频振荡机理及其控制措施研究  

Study on Low Frequency Oscillation Mechanism and Control Measures of Power Systems

作　　者：李道霖[1] 张双平[2] 

机构地区：[1]三峡电力职业学院,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：《电气开关》2010年第5期42-44,共3页Electric Switchgear

摘　　要：首先分析了电力系统低频振荡的负阻尼振荡机理、产生负阻尼的系统条件;同时根据低频振荡的共振机理理论,分析了发电机二阶模型和考虑励磁特性的三阶模型产生共振振荡的机理;然后讨论了由于电力系统的非线性奇异现象引发的低频振荡的振荡起因和条件;最后,针对低频振荡问题提出了相关控制策略,并指出了其发展新动向和研究热点。Firstly,The paper presents the negative damped oscillation mechanism and the condition of generating negative damping system.Then according to the resonance mechanics theory,it has analyzed the second-order model of generator mechanics and the three-order resonance model mechanics in which the excitation characteristics is considered.Meanwhile,this article discusses the causes and conditions of the low frequency oscillation,which is owing to nonlinear singular phenomenon for the power system;Finally,the correlation control strategy and the new trend researches are put forward according to development of the low frequency oscillation.

关 键 词：低频振荡 阻尼振荡 共振机理 电力系统稳定器 

分 类 号：TM712[电气工程—电力系统及自动化]