静止无功发生器(SVG)的模糊变结构控制研究

Study on fuzzy variable structure control of static reactive power generator

结合模糊控制理论和变结构控制理论,设计了电力系统静止无功补偿器(SVG)的模糊变结构控制规律。SVG可以在支撑安装点电压的同时提高发电机的功角稳定性。通过对单机—无穷大系统进行计算机仿真表明,SVG模糊变结构控制器能够提高系统的暂态稳定性,保证电压质量。

A new fuzzy variable structure control law of static reactive power generator is proposed based on the fuzzy control theory and variable structure control theory in the paper, which can promote the generator power angle stability while it can provide supports of mounting point voltage. The results simulated single unit by computer, which is of infinite bus system, shown that the fuzzy variable structure controller, static reactive power generator, can improve the transient system stability and ensure the voltage quality.