Quantitative Comparison of Novel Vernier Permanent Magnet Machines

Niu, Shuangxia; Ho, S. L.; Fu, Weinong; Wang, L L

doi:10.1109/tmag.2010.2042429

Cited by 150 publications

(44 citation statements)

References 6 publications

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“…A vernier machine with concentrated winding was presented in [6]. Dual-rotor and dual-stator vernier topologies were proposed in [7], in which higher torque density of these topologies were reported. These papers focus on the performances such as torque density, and core losses etc., and these analysis results shows the advantages of vernier PM machine on torque density and efficiency compared to traditional PM machine.…”

Section: Introductionmentioning

confidence: 99%

High power factor vernier permanent magnet machines

Lipo

2013

2013 IEEE Energy Conversion Congress and Exposition

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Vernier permanent magnet (VPM) machines are well known for high torque density but low power factor. This paper deals with the low power factor of VPM machines. The goal is not obtained by reducing the electrical loading or adjusting current advance angle but proposing a novel vernier topology-dual-stator, spoke-array (DSSA) VPM topology. In this paper, the characteristics, such as active part, auxiliary mechanical structure and rotor anisotropy, of the DSSA VPM topology are analyzed in detail. Performances, including power factor, torque density, and cogging torque etc., are evaluated based on finite element analysis (FEA). The analysis results show that the DSSA VPM topology exhibits high power factor viz.,∼0.9 and significantly high torque capability. Finally, the prototype machine has been designed， built， and is under testing. The verification of the mechanical structure scheme is done in this paper, and the experimental results will be presented in the near future.Index Terms-High power factor, dual-stator spoke-array vernier permanent magnet machine

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Section: Introductionmentioning

confidence: 99%

High power factor vernier permanent magnet machines

Lipo

2013

2013 IEEE Energy Conversion Congress and Exposition

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“…In the PMV machines, the magnetic field caused by the stator is modulated, and corresponds to the magnetic poles of the rotor by the FMPs when the following relationship is satisfied [4]. …”

Section: Structurementioning

confidence: 99%

“…PMV machines are commonly known as high-torque machines. In recent years, studies of PMV machines have focused on their topologies in order to improve their performance parameters such as the torque density and power factor [1][2][3][4][5]. However, compared with PMS machines in the same conditions, the distinct characteristics and advantages of the magnetic gearing effect for high-torque applications have not yet been reported.…”

Section: Introductionmentioning

confidence: 99%

Performance Comparison of PM Synchronous and PM Vernier Machines Based on Equal Output Power per Unit Volume

Jang¹,

Chang²

2016

Journal of Electrical Engineering and Technology

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-This paper compares the performances of permanent-magnet synchronous (PMS) and permanent-magnet vernier (PMV) machines for low-speed and high-torque applications. For comparison with the PMS machines, we consider two types of the PMV machine. The first one has surface-mounted permanent magnets (PMs) on the rotor and the other has PMs inserted on both sides of the stator and rotor. The PMS and PMV machines are designed to meet the condition of equal output power per unit volume. We analyze the magnetic fields of the machines using a twodimensional finite element analysis (FEA). We then compare their performances in terms of the generated torque characteristics, power factor, loss, and efficiency.

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“…It has been discussed that FMPM machines can develop a high torque density by using the high-speed armature field operation with low armature pole-pairs and slot number while the rotor still rotates at a low speed to transmit a high torque [3][4][5]. Due to the "magnetic gearing effect" coupled with its compact structure, high torque density, and high efficiency, the FMPM machine is promising for low-speed direct-drive applications such as wind power generation [6], wave energy conversion [7], and electric vehicles [8].…”

Section: Introductionmentioning

confidence: 99%

Modeling of a Field-Modulated Permanent-Magnet Machine

Chau

Wang

2016

Energies

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Abstract:In this work, an effective field-modulated permanent-magnet (FMPM) machine was investigated, in which the spoke-magnet outer rotor and open-slot stator were employed. The objective of this paper is to provide the mathematical modeling analysis that was performed for the purpose of control research on this type of FMPM machine. The simulation results by means of finite element analysis (FEA) are given to verify the theoretical analysis and the validity of mathematical model. A prototype machine was also fabricated for experimentation. Both the analytical model and the FEA results are validated by experimental tests on the prototype machine.

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Quantitative Comparison of Novel Vernier Permanent Magnet Machines

Cited by 150 publications

References 6 publications

High power factor vernier permanent magnet machines

High power factor vernier permanent magnet machines

Performance Comparison of PM Synchronous and PM Vernier Machines Based on Equal Output Power per Unit Volume

Modeling of a Field-Modulated Permanent-Magnet Machine

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