关键词: 永磁同步电机, 无差拍预测电流控制, 超局部模型

Abstract: A control strategy was proposed combining an improved deadbeat prediction current control method and an improved sliding mode control method. Based on the mathematical model of permanent magnet synchronous motor ( PMSM) , the current inner loop control algorithm was constructed, and the extended state observer was designed to solve the current error problem caused by parameter disturbance and model mismatch of the deadbeat prediction current control
( DPCC) . A hyper-local model sliding mode controller was designed in the velocity outer loop, and a sliding mode disturbance observer was designed to weaken the sliding mode jitter. The simulation results show that the combined control method effectively improved the temporary and steady-state performance of the motor, and improved the anti-interference ability, robustness and response speed of the system.

Key words: permanent magnet synchronous motor( PMSM), deadbeat predictive current control( DPCC), hyper-local model, sliding mode observer( SMO)