Design Process of Spoke-Type Permanent Magnet Synchronous Motor Considering Magnetization Performance

Lee, Sung Gu; Bae, Jae-Nam; Kim, Won‐Ho

doi:10.1109/tasc.2020.2986968

Cited by 11 publications

(5 citation statements)

References 10 publications

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“…Figure 17 shows the split magnetization yoke and the split magnetization principle. In this paper, we proposed an I spoke-type PMSM that can reduce the number of magnetizations while taking advantage of the increase in magneto-motive force from the magnetization, which is an advantage of the split magnetization method [25].…”

Section: Magnetization Analysis 41 General Magnetization Methods Of Pmsmmentioning

confidence: 99%

A Study on the Shape of the Rotor to Improve the Performance of the Spoke-Type Permanent Magnet Synchronous Motor

et al. 2021

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This paper describes a study on the improvement of the dehydration performance of the conventional washing machine model. Recently, as interest in improving the dehydration performance of washing machines has increased, the need for a study on a high-speed electric motor has emerged. However, this conventional spoke-type PMSM has difficulty in speeding up due to the following problems. First, field weakening control is indispensable for high-speed operation of an electric motor. This control method is a big problem in causing torque drop and irreversible demagnetization of the motor. Moreover, the centrifugal force increases during high-speed operation, which adversely affects the stiffness of the motor. Therefore, in this paper, a new rotor shape of spoke-type PMSM was proposed to solve the above problem.

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Section: Magnetization Analysis 41 General Magnetization Methods Of Pmsmmentioning

confidence: 99%

A Study on the Shape of the Rotor to Improve the Performance of the Spoke-Type Permanent Magnet Synchronous Motor

et al. 2021

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“…4, which is the actual air gap flux density distribution predicted by FEA, B g1 and B g2 are very similar. Therefore, for simplicity, they are assumed to be equal, i.e., B g1 ≈ B g2 (16) Substituting ( 11) and ( 15) into ( 16), the air-gap areas A g1 and A g2 through which the magnetic fluxes of PM 1 and PM 2 pass are derived.…”

Section: A 2d Mec Without Considering Axial Leakage Fluxmentioning

confidence: 99%

“…Among the various PM motors, the spoke-type ferrite PM motor has a structure in which two magnets face each other. Therefore, it has gained substantial popularity because it can obtain a magnetic flux concentration effect [10], [11], [12], [13], [14], [15], [16]. These spoke-type ferrite PM motors promote magnetic flux concentration when the cross-sectional area of the surfaces of a pair of magnets that generate magnetic flux is larger than that of the air-gap.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Modeling of Axial Leakage for Spoke-Type Hybrid Permanent Magnet Machines

et al. 2023

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In this study, we propose a novel analysis method for a spoke-type permanent magnet (PM) synchronous motor (PMSM) using two types of PMs that consider axial leakage flux using a magnetic equivalent circuit (MEC). Spoke-type ferrite PMSM have the advantage of concentrating magnetic flux; however owing to the shape in which the PMs are arranged along the radial direction, some magnetic flux leaks in the axial direction, which causes inconsistency between the 2D and 3D finite element analysis (FEA) results. Because 3D FEA requires considerable analysis time, using it in the initial design stage of the motor is inefficient. Therefore, we present a new analytical method combined with MEC to overcome the existing inefficient approach. To obtain analysis results equivalent to 3D FEA, the new residual magnetic flux density considering axial flux leakage was applied to 2D FEA PMs using MEC and 2D FEA. The validity of the proposed method was verified through 3D FEA and experiments conducted on the test models using two magnet types.INDEX TERMS Axial flux leakage, ferrite permanent magnet motor, hybrid magnet, less-rare-earth motor, lumped magnetic equivalent circuit, spoke-type permanent magnet motor.

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“…Accordingly, researches on CFSM are conducted on various topics. Lee et al studied CFSM considering the magnetization process of the ferrite magnet [13], and Park et al dealt with the vibration characteristics of the CFSM [14]. Furthermore, Seok et al tried to design the hybrid CFSM with rare-earth magnet assist [15].…”

Section: Introductionmentioning

confidence: 99%

Speed Response Improvement Design of Electric Motor for Vehicle Electrification Based on Electro-Mechanical Analytic Model

Dong-min

Lim

2023

IEEE Access

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According to vehicle electrification trends, the application of electric motors more often occurs. Therefore, in the aspect of the supply instability preparation for rare-earth materials, research on the rare-earth-free motor is getting more attention. Moreover, the electric motor for the vehicles should have not only high power density but also fast response. Especially, electric motors for advanced driver assistant systems (ADAS) or autonomous driving vehicles should have a fast response speed to secure the driver's safety. This paper introduces the electro-mechanical response improvement design of concentrated flux synchronous motors for vehicle electrification. Improvement design is carried out targeting motors for electric power steering (EPS) system. The development of the electro-mechanical analytic (MEA) model of the electric motor is firstly explained. Then, based on the developed MEA model, electro-mechanical response modeling is performed. Finally, the speed response improvement design is conducted using the developed MEA model. In addition, the results are validated not only in finite element analysis but also experimentally.INDEX TERMS Concentrated flux synchronous motor (CFSM), electric power steering (EPS), rare-earth free motor, rise time, settling time, speed response.

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Design Process of Spoke-Type Permanent Magnet Synchronous Motor Considering Magnetization Performance

Cited by 11 publications

References 10 publications

A Study on the Shape of the Rotor to Improve the Performance of the Spoke-Type Permanent Magnet Synchronous Motor

A Study on the Shape of the Rotor to Improve the Performance of the Spoke-Type Permanent Magnet Synchronous Motor

Analysis and Modeling of Axial Leakage for Spoke-Type Hybrid Permanent Magnet Machines

Speed Response Improvement Design of Electric Motor for Vehicle Electrification Based on Electro-Mechanical Analytic Model

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