Grey Wolf based control for speed ripple reduction at low speed operation of PMSM drives

• Published in: ISA transactions Vol. 74; pp. 111 - 119
• Main Authors: Djerioui, Ali, Houari, Azeddine, Ait-Ahmed, Mourad, Benkhoris, Mohamed-Fouad, Chouder, Aissa, Machmoum, Mohamed
• Format: Journal Article
• Language: English
• Published: United States Elsevier Ltd 01.03.2018; Elsevier
• Subjects: Engineering Sciences; Grey Wolf algorithm; Low speed operation; Permanent Magnet Synchronous Machine (PMSM); Speed control; Grey Wolf algorithm; Permanent Magnet Synchronous Machine (PMSM); Speed control; Low speed operation
• ISSN: 0019-0578; 1879-2022
• DOI: 10.1016/j.isatra.2018.01.012

Speed ripple at low speed-high torque operation of Permanent Magnet Synchronous Machine (PMSM) drives is considered as one of the major issues to be treated. The presented work proposes an efficient PMSM speed controller based on Grey Wolf (GW) algorithm to ensure a high-performance control for speed ripple reduction at low speed operation. The main idea of the proposed control algorithm is to propose a specific objective function in order to incorporate the advantage of fast optimization process of the GW optimizer. The role of GW optimizer is to find the optimal input controls that satisfy the speed tracking requirements. The synthesis methodology of the proposed control algorithm is detailed and the feasibility and performances of the proposed speed controller is confirmed by simulation and experimental results. The GW algorithm is a model-free controller and the parameters of its objective function are easy to be tuned. The GW controller is compared to PI one on real test bench. Then, the superiority of the first algorithm is highlighted. •A Grey Wolf Algorithm is proposed for high-performance speed control of Permanent Magnet Synchronous Machines (PMSM).•The proposed Grey Wolf speed-controller is a free-model controller and its parameters are easy to be tuned.•This control ensures speed ripple reduction at low speed-high torque working conditions of PMSM.•Experimental results are presented to show the validity and the performance of the proposed control method.