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《Electric Power Automation Equipment》 2001-03
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Research on Fuzzy Control of Substation Voltage and Reactive Power

XU Zhi han, LIU Xiao chuan, LIU Jun yong, LI Xing yuan (Sichuan University, Chengdu 610065, China)  
The traditional vol/var control method, nine area control method, is enhanced by introducing fuzzy control theory and technology. Based on the operating status of substation and the combination of the position variable on nine area chart with the fuzzy input variables, the decoupling or comprehensive control way is decided. Then the control strategy is obtained from the fuzzy control algorithm. On considering the voltage adjustment stability and device controllable margin, the concept of variable inverse time delay is introduced. The short term load forecasting is combined with the real time fuzzy control. By simulation, it shows that the control algorithm results in improving voltage quality and decreasing power loss.
【CateGory Index】: TM76
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