摘要
在分析传统的变电站电压无功模糊控制策略的基础上,针对模糊理论的"瓶颈"—模糊控制规则的确定问题,引入了粗糙集理论,并讨论了模糊集和粗糙集的互补性,提出了将二者结合起来应用于电压无功控制.在考虑负荷变化的情况下,对模糊粗糙控制策略进行了仿真分析.结果表明:该策略能改善模糊控制的性能,改善变电站的功率因数,更切合现场需要.
The traditional voltage reactive control based on fuzzy logic control （FLC） is analyzed firstly. In order to deal with the fuzzy control＇s bottleneck problem, the rough set is introduced. Furthermore, the complementarity between fuzzy set and rough set is discussed; and a method to combine the two theories to improve the reactive-voltage control is presented. Meanwhile, a design example of voltage reactive control based on fuzzy-rough strategy is presented and Matlab is used to simulate and analyze it on the condition of variable loads. The simulation results show that the presented strategy can improve the power factor and performance of FLC, and is more suitable in practice.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2007年第5期112-115,127,共5页
Engineering Journal of Wuhan University
关键词
电压无功控制
模糊逻辑控制
粗糙集
voltage reactive control
fuzzy logic control rough set
