Analysis of the operation principle for rotor-permanent-magnet flux-switching machines

Peng Su; Wei Hua; Zhongze Wu; Peng Han; Ming Cheng

doi:10.1109/TIE.2017.2733442

Analysis of the operation principle for rotor-permanent-magnet flux-switching machines

Peng Su
, Wei Hua
, Zhongze Wu
, Peng Han
, Ming Cheng

Department of Mechanical Engineering

Southeast University
University of Warwick

Research output: Contribution to journal › Article › peer-review

73 Citations (SciVal)

Abstract

This paper proposes a topology of special rotor-type permanent-magnet (PM) machine named rotor-PM flux-switching (RPM-FS) machine, which is evolved from stator-PM flux-switching (SPM-FS) topology and exhibits high power density, wide-range speed regulation, and good overload capability. The operation principle of RPM-FS machines is investigated based on the field modulation theory. It can be found that the torque is mainly contributed by the dominant harmonics in rotor-PM field and armature reaction field with the same order and rotating speed, i.e., 10, 14, and 34 pole pairs. In addition, a comprehensive comparison of modulation principles between the RPM-FS and SPM-FS machines is conducted from three perspectives, namely PM field, armature reaction field, and torque production mechanism. It is found that the modulation principle not only reveals the similarities of operation principle between two PM-FS machines, but also provides guidance for the combination of stator slots and rotor poles. Further, the electromagnetic torque produced by the dominant harmonics in two machines is verified by finite-element analysis and experiments.

Original language	English
Article number	2733442
Pages (from-to)	1062-1073
Number of pages	12
Journal	IEEE Transactions on Industrial Electronics
Volume	65
Issue number	2
DOIs	https://doi.org/10.1109/TIE.2017.2733442
Publication status	Published - 29 Jul 2017

Funding

Manuscript received February 6, 2017; revised May 29, 2017; accepted June 14, 2017. Date of publication July 31, 2017; date of current version December 8, 2017. This work was supported in part by the 973 Program of China under Grant 2013CB035603, and the Fundamental Research Funds for Central Universities under Grant 2242016K41004. (Corresponding author: Wei Hua.) P. Su, W. Hua, P. Han, and M. Cheng are with the School of Electrical Engineering, Southeast University, Nanjing 210096, China (e-mail: [email protected]; [email protected]; hanpeng360001@ 163.com; [email protected]).

Keywords

Field modulation
Flux-switching (FS)
Harmonic analysis
Rotor permanent magnet (PM)
Stator PM
Switched flux

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/TIE.2017.2733442

Cite this

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title = "Analysis of the operation principle for rotor-permanent-magnet flux-switching machines",

abstract = "This paper proposes a topology of special rotor-type permanent-magnet (PM) machine named rotor-PM flux-switching (RPM-FS) machine, which is evolved from stator-PM flux-switching (SPM-FS) topology and exhibits high power density, wide-range speed regulation, and good overload capability. The operation principle of RPM-FS machines is investigated based on the field modulation theory. It can be found that the torque is mainly contributed by the dominant harmonics in rotor-PM field and armature reaction field with the same order and rotating speed, i.e., 10, 14, and 34 pole pairs. In addition, a comprehensive comparison of modulation principles between the RPM-FS and SPM-FS machines is conducted from three perspectives, namely PM field, armature reaction field, and torque production mechanism. It is found that the modulation principle not only reveals the similarities of operation principle between two PM-FS machines, but also provides guidance for the combination of stator slots and rotor poles. Further, the electromagnetic torque produced by the dominant harmonics in two machines is verified by finite-element analysis and experiments.",

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N2 - This paper proposes a topology of special rotor-type permanent-magnet (PM) machine named rotor-PM flux-switching (RPM-FS) machine, which is evolved from stator-PM flux-switching (SPM-FS) topology and exhibits high power density, wide-range speed regulation, and good overload capability. The operation principle of RPM-FS machines is investigated based on the field modulation theory. It can be found that the torque is mainly contributed by the dominant harmonics in rotor-PM field and armature reaction field with the same order and rotating speed, i.e., 10, 14, and 34 pole pairs. In addition, a comprehensive comparison of modulation principles between the RPM-FS and SPM-FS machines is conducted from three perspectives, namely PM field, armature reaction field, and torque production mechanism. It is found that the modulation principle not only reveals the similarities of operation principle between two PM-FS machines, but also provides guidance for the combination of stator slots and rotor poles. Further, the electromagnetic torque produced by the dominant harmonics in two machines is verified by finite-element analysis and experiments.

AB - This paper proposes a topology of special rotor-type permanent-magnet (PM) machine named rotor-PM flux-switching (RPM-FS) machine, which is evolved from stator-PM flux-switching (SPM-FS) topology and exhibits high power density, wide-range speed regulation, and good overload capability. The operation principle of RPM-FS machines is investigated based on the field modulation theory. It can be found that the torque is mainly contributed by the dominant harmonics in rotor-PM field and armature reaction field with the same order and rotating speed, i.e., 10, 14, and 34 pole pairs. In addition, a comprehensive comparison of modulation principles between the RPM-FS and SPM-FS machines is conducted from three perspectives, namely PM field, armature reaction field, and torque production mechanism. It is found that the modulation principle not only reveals the similarities of operation principle between two PM-FS machines, but also provides guidance for the combination of stator slots and rotor poles. Further, the electromagnetic torque produced by the dominant harmonics in two machines is verified by finite-element analysis and experiments.

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KW - Switched flux

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Analysis of the operation principle for rotor-permanent-magnet flux-switching machines

Abstract

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Keywords

ASJC Scopus subject areas

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