Design of Five-Phase Modular Flux-Switching Permanent-Magnet Machines for High Reliability Applications

Xue, Xiao; Zhao, Wenxiang; Zhu, Jihong; Zhu, Xiaoyong; Cheng, Ming

doi:10.1109/tmag.2013.2244201

Cited by 69 publications

(43 citation statements)

References 10 publications

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“…On the other hand, multiphase PMFS machines with large phase numbers have also attracted considerable attention due to the improved fault-tolerant capacity, stronger reliability, lower torque ripple, and consequently vibration and noise, namely, the five-phase 20-stator-slot/ 18-rotor-pole PMFS machine (Figure 8c) (15). Also, a dualthree-phase 24/22 topology (Figure 8d) is proposed as a sixphase PMFS machine to improve the fault-tolerant capability in case a set of three-phase windings is completely under failure.…”

Section: New Developments Of Pmfs Machinesmentioning

confidence: 99%

Flux‐Switching Machines

Wang

Zhang

et al. 2015

Wiley Encyclopedia of Electrical and Electronics Engineering

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Flux‐switching machines are a type of brushless machines with a doubly salient structure, which has excitation sources, for example, permanent magnets (PMs) and/or field‐excited windings, and armature windings on the stator, and no magnets or windings on the rotor. The flux‐switching machines have the advantages of high torque (power) density, large torque output capability, high efficiency, strong irreversible demagnetization withstand capability, good thermal dissipation and liquid cooling conditions, and favorable high‐speed operation. These advantages are particularly important for electric propulsion systems, such as electric vehicles and hybrid electric vehicles, and electric ships and airplanes. According to the excitation modes, there are three types of flux‐switching machines: permanent magnet flux‐switching (PMFS) machines, hybrid‐excited flux‐switching (HEFS) machines, and wound‐excited flux‐switching (WEFS) machines. This article presents topologies, operation principles, electromagnetic performance, and applications of flux‐switching machines. In addition, different topologies of stator and rotor are also discussed.

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Section: New Developments Of Pmfs Machinesmentioning

confidence: 99%

Flux‐Switching Machines

Wang

Zhang

et al. 2015

Wiley Encyclopedia of Electrical and Electronics Engineering

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“…Compared with the DSPM machine and the FRPM machine, the FSPM machine possesses the merits of higher power density and torque density [8], sinusoidal no-load EMF [9] and fault-tolerance capability [10][11][12][13][14], so FSPMs are attracting more and more attention and numerous novel rotary FSPM machines structures of have been proposed [15,16], such as the five-phase modular FSPM machine [17] and the hybrid excitation FS machine [18]. Meanwhile lots of linear versions of FSPM (LFSPM) machines also have been presented for linear industry applications [19].…”

Section: Introductionmentioning

confidence: 99%

Detent Force Reduction of a C-Core Linear Flux-Switching Permanent Magnet Machine with Multiple Additional Teeth

Yang

Quan

et al. 2017

Energies

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C-core linear flux-switching permanent magnet (PM) machines (LFSPMs) are attracting more and more attention due to their advantages of simplicity and robustness of the secondary side, high power density and high torque density, in which both PMs and armature windings are housed in the primary side. The primary salient tooth wound with a concentrated winding consists of C-shaped iron core segments between which PMs are sandwiched and the magnetization directions of these PMs are adjacent and alternant in the horizontal direction. On the other hand, the secondary side is composed of a simple iron core with salient teeth so that it is very suitable for long stroke applications. However, the detent force of the C-core LFSPM machine is relatively high and the magnetic circuit is unbalanced due to the end effect. Thus, a new multiple additional tooth which consists of an active and a traditional passive additional tooth, is employed at each end side of the primary in this paper, so that the asymmetry due to end effect can be depressed and the detent force can be reduced by adjusting the passive additional tooth position. By using the finite element method, the characteristics and performances of the proposed machine are analyzed and verified.

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“…Since the proposal of a one-phase FSPMM in the 1950s [2], a large number of topologies for FSPMMs have been developed [3]- [7]. These include three-and multi-phase FSPMMs, E-core and C-core FSPMMs, linear FSPMM, axial field FSPMM, and hybrid excited FSPMM.…”

Section: Introductionmentioning

confidence: 99%

A Novel Dual-Rotor, Axial Field, Fault-Tolerant Flux-Switching Permanent Magnet Machine With High-Torque Performance

2015

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This paper proposes a novel dual-rotor, axial field, fault-tolerant flux switching permanent magnet machine (FSPMM) with high torque performance for direct-drive applications, in which the phase-group concentrated-coil windings and unaligned arrangement of the two rotors are utilized. The adoption of the phase-group concentrated-coil windings is made to obtain a unity displacement winding factor, and to enhance the flux focusing effects together with the use of a spoke-type PM configuration. The unaligned arrangement of the two rotors will help to achieve increased flux magnification and also to suppress the cogging torque and torque ripple. In particular, the proposed configuration for FSPMMs exhibits the advantage of fault tolerance benefiting from the electromagnetic isolation of phases and a dual three-phase channel of supply. The operating principle and design criteria of the proposed FSPMM are discussed in detail. To highlight the advantages of the proposed FSPMM, two conventional FSPMMs are adopted for comparison under the same operating conditions based on a 3-D finite element method (FEM). As a result, it is demonstrated that the proposed FSPMM exhibits significantly improved performance with not only higher torque (power) density but also lower cogging torque and torque ripple, compared to the conventional FSPMMs.Index Terms-Axial field, direct-drive, fault tolerant, finite element method (FEM), flux switching permanent magnet machine (FSPMM), phase-group concentrated-coil winding, torque, winding factor.

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Design of Five-Phase Modular Flux-Switching Permanent-Magnet Machines for High Reliability Applications

Cited by 69 publications

References 10 publications

Flux‐Switching Machines

Flux‐Switching Machines

Detent Force Reduction of a C-Core Linear Flux-Switching Permanent Magnet Machine with Multiple Additional Teeth

A Novel Dual-Rotor, Axial Field, Fault-Tolerant Flux-Switching Permanent Magnet Machine With High-Torque Performance

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