Next Article in Journal
Bending Stress and Deformation Characteristics of Gas Pipelines in Mountainous Terrain Under the Influence of Subsidence
Previous Article in Journal
A Comprehensive Review of the Art of Cell Balancing Techniques and Trade-Offs in Battery Management Systems
Previous Article in Special Issue
Improved Adaptive PI-like Fuzzy Control Strategy of Permanent Magnet Synchronous Motor
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

General Principles of Combinations of Stator Poles and Rotor Teeth for Conventional Flux-Switching Brushless Machines with Prime Phase Numbers

1
School of Electrical Engineering, Southeast University, Nanjing 210096, China
2
School of Electrical Engineering & Automation Engineering, Nanjing Normal University, Nanjing 210023, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Energies 2025, 18(13), 3322; https://doi.org/10.3390/en18133322
Submission received: 27 March 2025 / Revised: 25 April 2025 / Accepted: 23 June 2025 / Published: 24 June 2025
(This article belongs to the Special Issue Designs and Control of Electrical Machines and Drives)

Abstract

In order to achieve the optimal stator–rotor combinations of conventional flux-switching permanent magnet (FSPM) machines, this paper proposes and analyzes a general principle with prime phase numbers. Based on the coil complementarity concept, the proposed methodology specifically addresses the phase symmetry of back electromotive force (back-EMF) and electromagnetic torque optimization, with comprehensive analysis conducted for two-phase, three-phase, and five-phase configurations. Firstly, the coil-EMF vectors and the concept of coil pairs of conventional FSPM machines are introduced. Then, based on the coil-EMF vectors, an analytical model determining the stator pole and rotor teeth combinations is proposed. Further, the combinations for conventional FSPM machines with prime phase numbers are synthesized and summarized on the basis of the results obtained by the proposed model. To validate the model and combination principles, the FSPM machines satisfying the principles have been verified to exhibit a symmetrical phase back-EMF waveform by finite element analysis (FEA) and experiments on prototypes. In addition, the winding factors of the conventional FSPM machines with different stator pole and rotor teeth combinations are calculated.
Keywords: flux switching; pole combination; coil complementarity; prime phase number; winding factor; finite element analysis flux switching; pole combination; coil complementarity; prime phase number; winding factor; finite element analysis

Share and Cite

MDPI and ACS Style

Gao, C.; Jia, X.; Zhao, G.; Hua, W.; Cheng, M. General Principles of Combinations of Stator Poles and Rotor Teeth for Conventional Flux-Switching Brushless Machines with Prime Phase Numbers. Energies 2025, 18, 3322. https://doi.org/10.3390/en18133322

AMA Style

Gao C, Jia X, Zhao G, Hua W, Cheng M. General Principles of Combinations of Stator Poles and Rotor Teeth for Conventional Flux-Switching Brushless Machines with Prime Phase Numbers. Energies. 2025; 18(13):3322. https://doi.org/10.3390/en18133322

Chicago/Turabian Style

Gao, Chuhan, Xinran Jia, Guishu Zhao, Wei Hua, and Ming Cheng. 2025. "General Principles of Combinations of Stator Poles and Rotor Teeth for Conventional Flux-Switching Brushless Machines with Prime Phase Numbers" Energies 18, no. 13: 3322. https://doi.org/10.3390/en18133322

APA Style

Gao, C., Jia, X., Zhao, G., Hua, W., & Cheng, M. (2025). General Principles of Combinations of Stator Poles and Rotor Teeth for Conventional Flux-Switching Brushless Machines with Prime Phase Numbers. Energies, 18(13), 3322. https://doi.org/10.3390/en18133322

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop