A Matrix rectifier input control method when the unbalance

The present invention is input into a matrix converter control method when the imbalance, the real-time detection method Matrix converter DC output voltage, and the output voltage Vref do with the normal difference obtained deviation signal when the deviation signal is large, that the specific use of the control column P output DC voltage rapidly reaches near the desired value. When the deviation is small when the signal is fuzzy control, fuzzy deviation change rate deviation and inputs the input fuzzy controller, fuzzy reasoning and decision making, to give output, through the output process outputs the quantization factors to obtain a space vector modulation factor, binding input phase current space vector sector angle, each time the switching action can be obtained state vector, and transmitted to PWM generating unit. PWM switch state vector generation unit transmission duration of action in the form of PWM pulses to the switching matrix controller rectifier loop, by which the controller determines the respective bidirectional switch is turned on and off signal, to achieve modulation of the rectifier matrix.