Predictive current control method of static var generator

According to the working mechanism and dynamic performance of SVG(Static Var Gene- rator),a predictive current control method is proposed to realize the perfect control,which is based on its dynamic mathematic model built up with logic switch function.It predicts the compensating current trajectory of next sampling period by the sampled information of present period,and then calculates the reference voltage of inverter output,which is used as the input of space vector PWM to set the switching function.The generated voltage is equivalent to the reference voltage and the predictive compensation is thus achieved.Simulation results with Matlab show its effectiveness and feasibility.