摘要
本文介绍了一种用模糊集理论来进行无功控制和提高电压安全性的方法。利用模糊集理论把节点电压的越限以及控制设备的控制能力用隶属函数表示 ,先用模糊集的最小运算得到一个较为灵活的解空间 ,然后再用模糊集的最大运算得到优化方案 ,最后根据最优解修正控制变量值 ,直到所有的节点电压值都达到理想的水平为止。通过对一个 5节点系统的计算 ,表明了这种方法是有效的 。
This paper presents a new approach using fuzzy set theory for voltage and reactive power control.The violation bus voltage and the control ability of the control devices are expressed by the membership functions of the fuzzy sets.A feasible solution set is first attained using the min operation of fuzzy sets,then the optimal solution is fast determined employing the max operation,and the bus voltage are reguated to an ideal level with the optimal variables.IEEE 13 bus system is used to demonstrate the application of the proposed approach.Simulation results show that the approach is efficient and has good flexibility and adaptability for voltage reactive power control.
出处
《电力系统及其自动化学报》
CSCD
2001年第6期32-34,共3页
Proceedings of the CSU-EPSA
关键词
电力系统
电压校正策略
模糊控制
数学模型
voltage reactive power control, fuzzy set theory, fuzzy control, membership functions
