INTELLIGENT COOPERATIVE CONTROL SYSTEM AND METHOD FOR MULTI-UNIT PERMANENT MAGNET SYNCHRONOUS MOTOR

摘要

An intelligent cooperative control system for a multi-unit permanent magnet synchronous motor, comprising a double parallel PWM rectification circuit (1), a first permanent magnet motor cooperative control unit (2), a second permanent magnet motor cooperative control unit (3), a third permanent magnet motor cooperative control unit (4) and a multi-unit permanent magnet synchronous motor (5), wherein the first permanent magnet motor cooperative control unit (2), the second permanent magnet motor cooperative control unit (3) and the third permanent magnet motor cooperative control unit (4) cooperatively control three stator units of the multi-unit permanent magnet synchronous motor (5) in a parallel connection manner. By means of the system, the problems of energy loss and reactive power loss of a hard switching circuit in a large power electric drive system can be solved, the problems of multi-unit cooperative control and fault tolerant control can be solved, the problems of difficult motor installation, transport and maintenance can be solved, the total energy is optimized, and the purpose of improving the utilization efficiency of the electric energy is achieved.