Theory and optimum design of PM Vernier motor

Ishizaki, Akira; Tanaka, Takeshi; Takasaki, Kazuhiko; Nishikata, Shoji

doi:10.1049/cp:19950864

Cited by 172 publications

(71 citation statements)

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“…In this paper, 1 12 Z = and 1 p = are chosen. Therefore the second term (9) and the first term (12) generate the 11th flux harmonic, which travels in the opposite direction of the fundamental rotating magnetic field at 1/11 times the speed.…”

Section: Principle Of Linear Permanent Magnet Vernier Motormentioning

confidence: 99%

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Analysis and optimization of a novel linear permanent Vernier motor

Shao

Xie

2017

MATEC Web Conf.

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Abstract. In this paper, a novel linear permanent magnet vernier (LPMV) motor is proposed. The advantages of the proposed motor are high force density, high efficiency, simple structure, and low cost. Firstly, the structure and the operation principle of the proposed motor which adopts 12-slots-11-pair-poles structure are descried. Based on the air-gap permeance function, the components of air-gap flux density is discussed. Secondly, the validation of LPMV is analyzed by finite element method (FEM), and the basic electromagnetic performance such as air-gap flux density, back-EMF, detent force and thrust waveform are analyzed in detail. Finally, the relationship between the thrust force characteristics and the design parameters are analyzed to provide useful information to the designers of LPMV.

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Section: Principle Of Linear Permanent Magnet Vernier Motormentioning

confidence: 99%

“…It made clear that the PMV motor can obtain high thrust at low speed and the steady thrust equation was derived in [1].Then, Toba and Lipo presented comprehensive design considerations of surface PMV motor for pursuing thrust maximizing [2]. After that various new PMV topologies have been proposed to further improve thrust density.…”

Section: Introductionmentioning

confidence: 99%

Analysis and optimization of a novel linear permanent Vernier motor

Shao

Xie

2017

MATEC Web Conf.

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“…However, compared with the PMS machine, the volume of the PMs in PMV machines I and II are reduced by 61% and 44%, respectively. The output power per unit volume of the PMs are 2.32, 5.98, and 4.19 kW/cm 3 , repectively for the PMS machine, PMV machine I, and PMV machine II. The PMV machine I achieves the smallest torque ripple of 3.6%.…”

Section: Output Powermentioning

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%

“…One is the surfacemounted PM type, which has flux-modulation poles (FMPs) on the stator and PMs on the surface of the rotor [1,2]. In the other type, the PMs are inserted between the FMPs on the stator and the teeth on the rotor [3]. For a fair comparison, we designed the PMS and two types of PMV machines based on the constraint conditions of identical output power and size.…”

Section: Introductionmentioning

confidence: 99%

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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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Design and performance of linear Vernier generators—The state of the art and case study

Faiz

Amini‐Valeshani

Ghods

2020

Int Trans Electr Energ Syst

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Summary Although Vernier machines have been introduced a long ago, their description, applications, and design improvement have been recently proposed. This paper reviews different types of linear Vernier machine. Their description and theoretical base of the performance are presented. The performance of the motor is improved by reducing the cogging force, increasing the power factor, and enhancing force density. Stator and translator structures, the arrangement of magnets, and the type of coils of permanent magnet (PM) Vernier machines are reviewed and classified. Then, the electromagnetic performance prediction and energy conversion process in the machine is described. The magnetic field distribution and air gap permeance analysis indicate that such analysis is very complicated than that of other PM machines. Impacts of variations of dimensions in the machine such as the number of modulators on the modulus width and thickness of the mover PMs on the load characteristics (cogging torque and Back‐EMF) are addressed. Besides, principles of operation of flux modulation machines are presented and the shape and dimensions of the modulators are optimized. Finally, a 150 W linear PM Vernier generator is designed and prototyped to the energy harvested by the ocean wave.

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Theory and optimum design of PM Vernier motor

Cited by 172 publications

References 0 publications

Analysis and optimization of a novel linear permanent Vernier motor

Analysis and optimization of a novel linear permanent Vernier motor

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

Design and performance of linear Vernier generators—The state of the art and case study

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