Decoupling inductance control method in the three-phase unbalanced conditions and grid inverter pwm

Under inductive conditions unbalanced three-phase PWM inverter with decoupling control and the present invention is in the field of electrical control. In order to solve the problem of the dq-axis can not be achieved effectively decoupled when the three-phase PWM inverter AC grid side inductor imbalance. Comprising: obtaining a three-phase AC power signal and the inverter side voltage three-phase current signal; obtained respectively and the signal line voltage signal at the AC side current synchronous rotating coordinate transformation by Clark and Park transformations; The inverter mathematical models of three-phase stationary coordinate system and the three-phase AC side of the inverter inductive imbalance, the mathematical model of the inverter in two-phase synchronous rotating coordinate system; obtained according to the mathematical model and the synchronous rotating coordinate system signal, synchronous rotation coordinate system to establish a current loop controller to achieve the inductor and the decoupling control of unbalanced three-phase PWM inverter network. It is used to decouple the inductor unbalanced three-phase PWM inverter grid.