Analysis of current linkage harmonics in multi-phase machines with distributed windings

Issue title: Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering

Guest editors: P. Di Barba, Roberto Galdi, M.E. Mognaschi and S. Wiak

Article type: Research Article

Authors: Mysiński, Michał^a; | Jędryczka, Cezary^a | Demenko, Andrzej^a | Macyszyn, Łukasz^b

Affiliations: [a] Faculty of Control, Robotics and Electrical Engineering, Poznan University of Technology, Poznan, Poland | [b] Faculty of Mechanical Engineering, Poznan University of Technology, Poznan, Poland

Correspondence: [*] Corresponding author: M. Mysiński, Poznan University of Technology, Institute of Electrical Engineering and Electronics, Piotrowo 3a, Poznan, Poland. Tel.: +48 691241177; E-mail: [email protected]

Abstract: The paper presents the results of research on the spatial distribution of the multi-phase, distributed windings in electric machines. The focus was on the analysis of the harmonics of the current linkage spatial distributions. To perform calculations for different windings patterns, taking into account the number of phases, pole pairs, and the number q of slots per pole and phase, the dedicated code was developed in the Matlab environment. Nine different multi-phase windings were studied, for which magnetomotive force (MMF) was determined to investigate the harmonic content and total harmonic distortion. The obtained results were compared with a reference three-phase symmetric system. Studies were also carried out on torque ripple and power density for different numbers of winding phases.

Keywords: Multi-phase electrical machines, current linkage harmonics, finite element method, THD

DOI: 10.3233/JAE-230242

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 76, no. 1-2, pp. 217-225, 2024