Permanent magnet synchronous motor modulation model prediction control method based on matrix converter

The invention relates to a permanent magnet synchronous motor modulation model prediction control method based on a matrix converter, and the method comprises the steps: collecting three-phase input voltage and current, filter input voltage and three-phase output current of a two-stage matrix converter, and the rotating speed and electrical angle of a permanent magnet synchronous motor; substituting into an input current and output voltage prediction model; substituting the effective vector of the rectifier stage into the value function of the rectifier stage, and solving a duty ratio corresponding to the minimum value function of the rectifier stage; solving a sector where the output voltage is located by using the output voltage and a trigonometric function; solving a duty ratio corresponding to the minimum value function of the inverter level through the value function of the inverter level; and enabling the rectification stage and the inversion stage to be subjected to coordination control, and achieving