摘要
笔者提出了一种基于能量系数分析区分析间低频振荡的新方法:通过构造能量函数,提出了能量系数的概念,并根据当前工况下的能量系数来分析低频振荡;同时提出了模式能量的概念,来分析两台发电机之间的能量交换行为。通过分析4机2区域电力系统实例,证明了该方法在电力系统低频振荡分析中的正确性和有效性。
The authors put forward a new method of analyzing low frequency oscillation based on energy coefficient. Through building energy function, the authors put forward concept of energy coefficient. Energy coefficient was used to analyze low frequency oscillation according to current working conditions; at the same time, the authors put forward concept of model en-ergy was used to analyze energy exchange of two generators. Through analyzing examples of power system, the authors proved correctness and effectiveness of the method in analvzing low frequency oscillation of power system.
出处
《科技创新与生产力》
2012年第12期109-112,共4页
Sci-tech Innovation and Productivity
关键词
低频振荡
能量函数
模式分析
能量偏移
电力系统
low frequency oscillation
energy function
pattern analysis
energy excursion
power system
