Linear Active Disturbance Rejection Controllers for PMSM Speed Regulation System Considering the Speed Filter

In the permanent magnet synchronous motor speed regulation system, dynamic performance of conventional active disturbance rejection control (ADRC) system will be deteriorated by using a low bandwidth filter. To solve this problem, two ADRC controllers considering measurement noise are proposed in article. One is based on extended state observer (ESO), other phase-locking loop (PLLO). systems, an integrator employed as filter so that measured position can directly used for observing and without calculation. Meanwhile, filter, ESO-based not affected since it independent PLLO-based has better ability low-frequency disturbance. Experimental results validate methods.