Multi-motor synchronous control and power balance control system and method

The invention relates to the technical field of frequency conversion control of motors, in particular to a multi-motor synchronous control and power balance control system and method, and the method comprises the steps: carrying out the region division of motors, dividing the motors in a region into a main motor and a slave motor, and taking the output of the main motor as the rotation speed input reference value of the slave motor; according to the cross coupling control principle, for a plurality of main motors in one area, the host speed feedback deviation of adjacent areas is used as a feedback signal, a fuzzy PID controller is adopted to carry out speed deviation control, and the output of the controller is transmitted to a frequency converter to realize the compensation correction of a speed reference value; a rotating speed and torque disturbance observer is designed, a compensator is designed in combination with a fuzzy adaptive algorithm, and a q-axis current reference value is corrected. According t