Research on Control of PMSM Based on SMO

To improve the control accuracy of permanent magnet synchronous motors, a sliding mode observer-based control strategy is proposed. First, a mathematical model of the permanent magnet synchronous motor is established, followed by the design of a control strategy based on the sliding mode observer. MATLAB software is used to simulate the designed control strategy, obtaining simulation curves such as the starting speed, variable-speed operation, and speed changes under sudden load application. The simulation results demonstrate that the sliding mode observer-based permanent magnet synchronous control exhibits excellent dynamic performance, with fast system response and high tracking accuracy.