The relationship of permanent magnetic material characteristic parameters was analyzed, and a simulation method of a permanent magnet synchronous motor (PMSM) rotor demagnetization fault was put forward. Based on this, a simulation model of the PMSM under partial demagnetization and uniform demagnetization fault were established, and different degrees demagnetization fault was simulated. Relati...

Permanent magnetic synchronous motor (PMSM) is a strong coupling and non-linear system. In the PMSM speed-regulation system, PID controller is the conventional one, it is difficult to decide the parameters of PID. Moreover, the performance of PID controller is not very well in large disturbance. In the paper, the Active Disturbance Rejection Controller (ADRC) is applied to the PMSM speed-regula...

9. PERMANENT MAGNET SYNCHRONOUS MACHINE (PMSM) ......................................... 1 9.1 PMSM Configurations and Machine Parameters ................................................................ 2 9.2 Equivalent Circuit and Vector Diagram of a PMSM ........................................................... 8 9.3 Current Vector Control ......................................................

In this paper, an extended state observer (ESO)-based nonsingular fast terminal sliding mode (NFTSM) control method is proposed for the speed tracking system of permanent magnet synchronous motor (PMSM) in present unknown parameters and time-varying load. Firstly, three finite time convergence ESO (FTCESO) are employed to estimate lumped disturbances one loop two current loops, respectively, es...