摘要
电力系统中的分岔现象严重影响系统的稳定性和电压质量,为提高系统的稳定性和电能质量,对分岔现象的控制迫在眉睫。介绍了动分岔的相关理论和目前非线性系统中常用的两种分岔控制方法。重点论述了用Washout-filter法对电力系统的动分岔进行控制。研究表明:对系统进行动分岔控制后,施加控制前系统存在的两个动分岔点消失,并且很大程度上增加了系统的稳定运行域。理论分析和仿真结果相符,证实了该控制方法的有效性。
Dynamic bifurcation in power system affects system stability and voltage quality seriously and it is imminent to control dynamic bifurcation so as to improve system stability and power quality. The theory of dynamic bifurcation and two common control methods which are used in bifurcation control are introduced. A bifurcation controller is designed using the method of Washout-filter so as to control the dynamic bifurcation in power system. Research result shows that two dynamic bifurcation points are eliminated effectively through the controller. The stable region of the system increases largely. Theoretical analysis and computer simulation show that Washout-filter method can work very well in dynamic bifurcation control.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第23期54-59,共6页
Power System Protection and Control
基金
国家自然科学基金项目(50877053)
天津市自然科学基金项目(09JCYBJC07100)~~
