Improved Deadbeat Predictive Control Based Current Harmonic Suppression Strategy for IPMSM

• Published in: Energies (Basel) Vol. 15; no. 11; p. 3943
• Main Authors: Gu, Xin, Li, Yiyang, Chen, Wei, Jin, Xuefeng
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.06.2022
• Subjects: Accuracy; Control systems design; Controllers; current harmonic suppression; deadbeat predictive control (DPC); Harmonic control; interior permanent magnet synchronous motor (IPMSM); Low speed; Mathematical models; multiple synchronous rotating frame transformation (MSRFT); Parameters; Permanent magnets; Synchronous motors; Velocity
• ISSN: 1996-1073; 1996-1073
• DOI: 10.3390/en15113943

When the interior permanent magnet synchronous motor (IPMSM) is running, there are abundant harmonics in the stator current. In order to achieve the suppression of current harmonics, the current harmonic extraction method and current harmonic controller are studied in this paper. Firstly, a simple and accurate method for extracting current harmonics is proposed by means of multiple synchronous rotating frame transformation (MSRFT). Secondly, an improved deadbeat predictive control (IDPC) based current harmonic controller is designed after analyzing the advantages and disadvantages of traditional current harmonic controllers. Thirdly, IDPC-based current harmonic suppression strategy is proposed by combining the proposed current harmonic extraction method and the proposed current harmonic controller. The proposed strategy can still effectively achieve current harmonic suppression when the motor runs at low speed, medium speed and high speed and the controller parameters are mismatched with the motor parameters. Finally, the feasibility and effectiveness of the proposed strategy are verified by simulation and experiments.