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In order to make the permanent magnet synchronous motor control system has a good dynamic performance and robustness, this paper introduces a design of decoupling controller to realize that. We used an inverse system decoupling control method in the permanent magnet synchronous motor decoupling control, and analysis the mathematics model of the permanent magnet synchronous motor in d-q synchronization reference frame, and put forward the inverse system analytical expressions of the motor. Simulation results show that this method realized the motor speed and torque decoupling, and the system had a good dynamic and static performance and good robustness. This decoupling controller with the inverse system decoupling control methods successfully applies the motor speed and torque decoupling, thus to make the system has a good dynamic and robustness

The Inverse System Decoupling Control of the Permanent Magnet Synchronous Motor in D-q Synchronous Rotating Reference Frame