Research on Resistance to Load Disturbance Control Method Based on LCI Fed Dual Three-Phase Synchronous Motor

This paper proposes two control methods to improve the resistance of synchronous motors to load interference. Firstly, a mathematical model of a dual three-phase synchronous motor is built, which uses a dual 6+6 topology to control the dual winding synchronous motor. Next, the principle of the LCI driven dual three-phase synchronous motor control system was elaborated. Then, design feedforward control based on reduced order Luenberger load observer and sliding mode observer to optimize the dynamic characteristics of the motor and enhance the system’s ability to resist step interference. At last, the simulation results verify the proposed feedforward control strategy is feasibility.