PMSM Sensorless Control System Based on Field Weakening Strategy, MRAS Observer, and Butterfly Optimization Algorithm

Le résumé fourni par la source

Starting from the fact that the Field Oriented Control (FOC) control strategy of the Permanent Magnet Synchronous Motor (PMSM) gives good results in terms of the usual indicators of response time quality, overshoot, steady-state error, but only in the usual operating range of the PMSM. The Maximum Torque Per Ampere (MTPA) control type strategy is utilised to limit current during operation while maintaining the required load torque, while the Field Weakening (FW) control type strategy is used to achieve speeds above the rated speed of the PMSM. These strategies are also complemented by the use of a Model Reference Adaptive System (MRAS) observer for PMSM rotor speed estimation and a Butterfly Optimization Algorithm (BOA) for achieving optimal values of the PI speed controller according parameters. The PMSM operating equations and the FOC, MTPA, and FW control strategies are also presented, together with the implementation structures in the Matlab/Simulink software programming environment. The features of these PMSM control systems in the corresponding operating regimes are presented through numerical simulations accomplished through Matlab/Simulink.

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