A Novel Position–Speed Integrated Tracking Control Strategy for SPMSM Propeller Load System

ABSTRACT This paper proposes a position–speed integrated tracking control strategy using super‐twisting resonant extended state observer‐based linear active disturbance rejection control (STRESO‐LADRC) for surface‐mounted permanent magnet synchronous motor (SPMSM) systems under propeller load, aiming to achieve high‐precision position control and rapid dynamic response. The conventional fixed‐bandwidth quadrature phase‐locked loop (PLL) exhibits steady‐state position errors during abrupt speed changes, while the standard LESO eliminates such errors, but its disturbance rejection capability is limited. The proposed STRESO integrates a second‐order oscillatory function and super‐twisting sliding mode with the ESO, which not only eliminates this error but also improves disturbance estimation accuracy and enhances the system's disturbance rejection capability. Then, a speed controller based on a linear state error feedback control law (LSEFCL) is designed to improve system dynamic performance. Finally, the effectiveness and theoretical correctness of the proposed STRESO‐LADRC method were validated on a propeller test bench, showing that the system exhibits smaller angular errors during dynamic acceleration and deceleration, higher steady‐state accuracy at high speeds, and significantly improved disturbance rejection performance.