Loss Minimization Design Using Permeance Method for Interior Permanent Magnet Synchronous Motor

Sato, Daisuke; Itoh, Jun‐ichi

doi:10.1002/eej.22931

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…The magnet segmentation method is currently the most effective method to decrease permanent magnets' eddy current losses, and this method has a low impact on other motor performance [3][4][5] . Many scholars have studied magnet segmentation to reduce eddy current loss: Gu et al [6] analyzed the theoretical relationship of eddy-current loss of magnet between the axial and circumferential division of permanent magnet.…”

Section: Introductionmentioning

confidence: 99%

Effect of Permanent Magnet Segmentation Structure on Eddy Current Loss of Permanent Magnet Synchronous Motor

Yang,

Wu,

Wang

2023

J. Phys.: Conf. Ser.

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For this essay, the mechanism of cutting a magnet to reduce its loss is investigated using the equivalent circuit of magnet segmentation, and the method is verified by the finite element method. The results indicate that the segmentation of magnets can effectively reduce the eddy current loss of magnets. The larger the product of segmented lengths is, the smaller the eddy current loss is. The higher the number of segments is, the lower of loss value is. The rotational speed and eddy current loss are in the square. Load multiple and eddy current loss is in cubic growth.

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Section: Introductionmentioning

confidence: 99%

Effect of Permanent Magnet Segmentation Structure on Eddy Current Loss of Permanent Magnet Synchronous Motor

Yang,

Wu,

Wang

2023

J. Phys.: Conf. Ser.

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“…(1) Torque response is two orders of magnitude faster in EVs than in traditional vehicle with internal combustion engines (2) Torque can be accurately ascertained by measuring the current flowing through the motor (3) EVs are small but have high output, which allows distributed arrangement (4) Both power running and regeneration are possible In spite of having numerous advantages, the milesper-charge are short for EVs, and this has proven to be a factor that has hindered the popularization of EVs. There have been various studies to solve this problem.…”

Section: Introductionmentioning

confidence: 99%

Range Extension Autonomous Driving for Electric Vehicle Based on Optimal Vehicle Velocity Profile in Consideration of Cornering

Ikezawa

Fujimoto

Kawano

et al. 2018

Electrical Engineering Japan

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Electric vehicles (EVs) have been intensively studied in the last decade due to their environment-friendly characteristics. However, the miles-per-charge of EVs is less than that of internal combustion engine vehicles. To improve the miles-per-charge, the authors' group proposed a Range Extension Autonomous Driving (READ) system that minimizes consumption energy by optimizing the velocity profile. However, conventional systems can be applied to driving on only straight roads. Therefore, this study extends READ system to be applied to driving not only on straight roads but also on curved roads by modeling the vehicle rotation motion and the cornering resistance. The effectiveness of the proposed method is verified by simulations and experiments.

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“…Permeance method has been used for simplified design . Particularly, permeance‐based minimum‐loss design method using ac magnetomotive force source was reported in the literature . A new design method to meet required output characteristics of concentrated‐winding 40‐pole 60‐slot SPMSM was also proposed in the literature .…”

Section: Introductionmentioning

confidence: 99%

Basic Design Method for SPMSM Based on Air‐Gap Magnetic Flux Density Distribution Focusing on Image Magnetic Pole

Sugiyama¹

2017

Electrical Engineering Japan

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SUMMARY This paper presents a basic design method for the surface‐mounted permanent magnet synchronous motor (SPMSM) for both distributed and concentrated windings. The design is based on the air‐gap magnetic flux density distribution focusing on the image magnetic pole. The calculus equation of the air‐gap magnetic flux density distribution is analytically derived by supposing the magnetic pole is located on the magnet surface and image planes. In this study, a three‐phase and double‐layer stator winding SPMSM that has a linear demagnetizing characteristic magnet, such as a ferrite or rare‐earth magnet is considered. From the required specifications and design conditions, the design target values of the parameters that appear in the voltages equations of the d–q axis coordinate system are calculated. Then, the relational equations for the torque constant, d‐axis inductance, copper loss, and the maximum current density are presented as a function of three design parameters under id = 0 control. They are the stator stack length, the number of coil turns in series in a phase, and the slot bottom length. Hence, this approach reduces the SPMSM basic design to the problem with these design parameters has to be solved. The proposed method makes it possible to address the concentrated winding as a special case of the distributed winding. The FEA results confirm the validity of the proposed basic design method for both distributed and concentrated windings.

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Loss Minimization Design Using Permeance Method for Interior Permanent Magnet Synchronous Motor

Cited by 3 publications

References 17 publications

Effect of Permanent Magnet Segmentation Structure on Eddy Current Loss of Permanent Magnet Synchronous Motor

Effect of Permanent Magnet Segmentation Structure on Eddy Current Loss of Permanent Magnet Synchronous Motor

Range Extension Autonomous Driving for Electric Vehicle Based on Optimal Vehicle Velocity Profile in Consideration of Cornering

Basic Design Method for SPMSM Based on Air‐Gap Magnetic Flux Density Distribution Focusing on Image Magnetic Pole

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