Harmonic Current Suppression of Dual Three-Phase Permanent Magnet Synchronous Motor with Improved Proportional-Integral Resonant Controller

Lei Chen, Min Chen (), Bodong Li, Xinnan Sun and Feng Jiang
Additional contact information
Lei Chen: Department of Applied Electronics, Zhejiang University, Hangzhou 310027, China
Min Chen: Department of Applied Electronics, Zhejiang University, Hangzhou 310027, China
Bodong Li: Department of Applied Electronics, Zhejiang University, Hangzhou 310027, China
Xinnan Sun: Department of Applied Electronics, Zhejiang University, Hangzhou 310027, China
Feng Jiang: Department of Applied Electronics, Zhejiang University, Hangzhou 310027, China

Energies, 2025, vol. 18, issue 6, 1-22

Abstract: The impedance of the harmonic plane in a dual three-phase permanent magnet synchronous motor (DTP-PMSM) is very low, meaning that even small harmonic voltages can induce significant harmonic currents, particularly at the fifth and seventh harmonic frequencies. These harmonic currents can severely degrade system performance and increase losses. To address this issue, the mechanism of harmonic current generation due to non-sinusoidal back electromotive force (EMF) and inverter nonlinearity is first analyzed. Then, to overcome the challenge of excessive controllers in traditional harmonic suppression strategies, a rotational coordinate transformation of the harmonic plane current is employed, which unifies the controllers and reduces their number. Since traditional proportional-integral resonant (PIR) controllers are ineffective at a high-speed region, an improved PIR controller for the harmonic plane is proposed. This controller incorporates digital delay compensation, phase compensation, and discretization correction to minimize the deviation between the discretized resonant frequency and the actual frequency. These enhancements enable harmonic suppression across the entire speed range and under varying load conditions, significantly reducing harmonic currents. Finally, the proposed harmonic current suppression strategy is experimentally validated.

Keywords: dual three-phase PMSM; harmonic current suppression; digital delay and phase compensation; discretization correction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/6/1340/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/6/1340/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:6:p:1340-:d:1608496

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().