Analysis of Inductance According to the Applied Current in Spoke-Type PMSM and Suggestion of Driving Mode

Cho, Sooyoung; Ahn, Hanwoong; Liu, Huai Cong; Hong, Hun-Gi; Lee, Ju; Go, Sung-Chul

doi:10.1109/tmag.2017.2662719

Cited by 22 publications

(6 citation statements)

References 11 publications

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“…The direct current motor of permanent magnet (PMDCM) not only has the linear regulation characteristics and wide speed range, but also has the advantages of small size, high efficiency, simple structure and reliable [1]- [3]. If the PMDCM is equipped with a speed stabilizer, it can also be applied to the occasions where the rotation speed needs to be stable even if the voltage fluctuates.…”

Section: A Research Backgroundmentioning

confidence: 99%

Design and Vibration Optimization of Direct Current Motor of Permanent Magnet of Rectangular Magnetic Steel

Zhang

2020

IEEE Access

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Direct current motor of permanent magnet (PMDCM) is widely used at present. To optimize its operating performance and vibration characteristics, a new PMDCM of rectangular magnetic steel was developed. The co-simulation was conducted based on RMxprt and MAXWELL. The simulation results verify that the output power and torque meet the design requirements. Then the cogging torque of the designed motor was analyzed and optimized by using response surface method. The influence degree of each factor on cogging torque was analyzed. When factor A, the factor B, and factor C are 33.51mm, 2.42mm, and 1.50mm, the root-mean-square (RMS) value and the maximum value of the cogging torque are smallest. The fitting accuracy of the two regression equations of RMS and maximum cogging torque is 94.30% and 97.26%. To further verify the correctness of analysis results, the optimized motor and reference motor were manufactured and the vibration velocity data at different positions were measured. The measured data shows that the maximum and average data of vibration velocity at measuring point 1 are decreased by 18.99% and 19.03% and the maximum and average vibration velocity at measuring point 2 are decreased by 9.73% and 4.70%. The method of vibration reduction is effective. The proposed optimization scheme and method may be extended to other motor for reducing vibration.

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Section: A Research Backgroundmentioning

confidence: 99%

Design and Vibration Optimization of Direct Current Motor of Permanent Magnet of Rectangular Magnetic Steel

Zhang

2020

IEEE Access

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“…where λ m is the sum of the magnetic linkages of the PM and the compensation winding current. Owing to the compensation current, the pulsation torque expressed in (18) increases to improve the synchronisation ability. However, this improvement is not adequate for the high-speed inertia load.…”

Section: Pulsation Torquementioning

confidence: 99%

“…The spoke-type permanent magnet (PM) machines [17,18] have a flux concentration capability [19] that leads to high-flux densities in the air gap compared with other types of rotors and reduces the motor size. This advantage is beneficial in increasing the number of poles and reducing the volume [20] of high-capacity and low-speed-LSPMSMs (HL-LSPMSMs).…”

Section: Introductionmentioning

confidence: 99%

Design and control of high‐capacity and low‐speed doubly fed start‐up permanent magnet synchronous motor

Gao

Wang

Wei

2018

IET Electric Power Applications

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A novel rotor structure with a set of compensation winding for line-start permanent magnet synchronous motors for high capacity and low speed, which can meet the requirements of a ball mill with a high moment of inertia, is proposed to improve the motor-starting performance. A control strategy for the compensation winding current is implemented to increase the synchronisation ability with a high-inertia load. The compensation current and its control method are analysed using a mathematical model and verified using a time-step finite-element analysis. The simulation shows that the permanent magnet motor proposed in this study can successfully start at a load of 15 times rotor inertia.

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“…However, the rare earth used in the core parts of high-performance electric motors has large price fluctuations, and stable supply and demand are difficult because the reserves of resources are concentrated in several countries [1,2]. Therefore, pieces of research on motors that do not use rare earth have been actively conducted in recent years [3][4][5][6][7][8][9][10][11][12].…”

Section: Introduction 1background Of Studymentioning

confidence: 99%

“…Spoketype PMSM is an electric motor that can concentrate flux by arranging permanent magnets facing each other in the radial direction. This structure creates a high airgap flux density because the fluxes from the two permanent magnets overlap each other and are directed to the airgap [10][11][12]. Therefore, ferrite PM, which is inexpensive, can perform similarly to a permanent magnet motor using rare earth.…”

Section: Introduction 1background Of Studymentioning

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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Analysis of Inductance According to the Applied Current in Spoke-Type PMSM and Suggestion of Driving Mode

Cited by 22 publications

References 11 publications

Design and Vibration Optimization of Direct Current Motor of Permanent Magnet of Rectangular Magnetic Steel

Design and Vibration Optimization of Direct Current Motor of Permanent Magnet of Rectangular Magnetic Steel

Design and control of high‐capacity and low‐speed doubly fed start‐up permanent magnet synchronous motor

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

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