Advanced Torque Control of Permanent Magnet Synchronous Motor Using Finite Element Analysis Based Motor Model with a Real-time Simulator

Tanabe, Ryo; Akatsu, Kan

doi:10.1541/ieejjia.6.173

Cited by 11 publications

(6 citation statements)

References 18 publications

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“…In this research, the measured encoder loss at a rotational speed of 1500 rpm is WEncoder = 0.3142 W. The detailed technique for measuring the encoder mechanical loss in the experimental IPMSM drive system can be referred in Appendix 1 of our previous work (1) . From the mechanical loss of the motor WMech = 0.628 W, encoder loss WEncoder = 0.3142 W, ( 7) and ( 8), the IPMSM core loss in noload condition is measured by (9), as explained in Fig. 7.…”

Section: Measurement Methods Of Ipmsm Core Lossmentioning

confidence: 99%

“…Harmonics components were also evaluated to increase the iron loss of the IPMSM (6)- (8) . In addition, the finite element analysis (FEA) has been widely applied to analyze and assess the iron loss of the IPMSM (9)- (12) . Furthermore, loss models and analysis in high-speed synchronous motors were discussed (13) (14) .…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, loss models and analysis in high-speed synchronous motors were discussed (13) (14) . Various control methods were also researched and developed to reduce the iron loss, copper loss, and torque ripples of the IPMSM (8) (9) . The geometry and assembly processes have effects on the building factors and iron loss of the motors (15)- (17) .…”

Section: Introductionmentioning

confidence: 99%

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Conceptual Diagrams of Extended Building Factor for Analysis and Evaluation of Factors on Core Loss Density Increase in IPMSM

et al. 2023

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This study analyzes and evaluates the stator core loss density of an interior permanent magnet synchronous motor (IPMSM) by proposing and developing conceptual diagrams of an extended building factor while considering the nonlinearity of the magnetic properties of the material. The IPMSM, whose stator and rotor are composed of non-oriented electrical steel, is investigated. First, the motor is driven by a three-phase inverter with the pulse width modulation (PWM) excitation method and then with the threephase sinusoidal excitation technique at a rotational speed of 1500 rpm in each condition. The calculation procedure of the stator core loss of the IPMSM is improved from our previous method. The finite element method (FEM) is used to support the identification and computation of motor iron losses, where the PWM carrier frequency is 10 kHz. In addition, experimental results of the extended building factor diagrams for the ring and IPMSM cores under the sinusoidal and inverter excitations are shown and discussed. The main objectives of this study are to investigate and clarify the reasons for increasing the IPMSM stator core loss density owing to the effects of the core shapes and two excitation methods, as well as to thoroughly identify the dominant impact between the core shape and excitation method on the increase in the iron loss density. Furthermore, based on the extended building factor, particular values of the IPMSM stator and rotor core losses in the experiment can be relatively separated and determined.

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Section: Measurement Methods Of Ipmsm Core Lossmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Conceptual Diagrams of Extended Building Factor for Analysis and Evaluation of Factors on Core Loss Density Increase in IPMSM

et al. 2023

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“…The comparison of the parameters and the characteristics of the two models give an insight into the impact that these three optimization parameters have on the cogging torque reduction but also on the overall motor operation. The accuracy of the motor design in terms of the magnetic flux density distribution and the core saturation is verified by the finite element analysis (FEA) as this numerical method has been proved to be a reliable tool in the machine design [18][19][20][21][22][23]. The FE models of the motors (BM and OM) had been derived and the magnetic flux density distribution in the air gap as well as in the motor cross-section was calculated as well.…”

Section: Introductionmentioning

confidence: 99%

Performance optimization of permanent magnet synchronous motor by cogging torque reduction

Śarac

2019

Journal of Electrical Engineering

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The development of the robotics and the automation and the need for the motors that can work in the applications that require high speed, precision and increased efficiency have led to the increased use of permanent magnet synchronous motors and their continuous development in terms of improving their performance. Cogging torque is one of the features of these types of the motors that deteriorate motor performance especially at low speeds. Therefore, in this paper the method of genetic algorithms (GA) is applied as an optimization tool, for minimizing the cogging torque without changing the other important operating parameters like output power, torque or current. Even more, the optimized motor model has improved efficiency compared to the starting model and has the decreased weight of the permanent magnets. The optimization is done by changing the rotor design in terms of the magnet thickness, pole span and shape of the magnets. Finite elements (FE) models of the optimized and the basic motor were derived and from them the flux density distribution in the motor cross section and in the air gap was calculated. In addition, the improvement of the motor operation is observed from the torque characteristics calculated by the FE models.

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“…An adaption of rare‐earth magnet and flexible power control of power electronics to traditional synchronous motors has made them more attractive electric drives in terms of high efficiency, flexible controllability and high densities of power and torque . With the spread of applications, there is a need for the electric drives to satisfy the diverse demands of users, and the motor should ensure high‐efficiency operation at multiple operating points on the speed–torque plane.…”

Section: Introductionmentioning

confidence: 99%

Design and control of variable field permanent magnet motors

Matsui

2019

IEEJ Transactions Elec Engng

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This is a survey paper focusing on permanent magnet motors with variable field capability. The synchronous motors, which have been applied to somewhat limited fields, have garnered attention as attractive electric drives. Due to a connection with rare‐earth magnet and power electronics‐based flexible control, current permanent magnet synchronous motors have achieved the best position in terms of high power and torque densities, high efficiency and flexible control capability. In order to satisfy the diverse demands of users, a motor is requested to ensure high‐efficiency operation at multiple operating points on the speed–torque plane. It is well recognized that maximum efficiency is attained under the condition that the copper loss is equal to the fixed loss, mainly composed of iron loss, at a given operating point. This is why permanent magnet synchronous motors should have the capability of adjusting the field excitation, similar to the direct current shunt motors. In this paper, recent trends of research and development of variable field permanent magnet motors are overviewed from the standpoint of design and control. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Advanced Torque Control of Permanent Magnet Synchronous Motor Using Finite Element Analysis Based Motor Model with a Real-time Simulator

Cited by 11 publications

References 18 publications

Conceptual Diagrams of Extended Building Factor for Analysis and Evaluation of Factors on Core Loss Density Increase in IPMSM

Conceptual Diagrams of Extended Building Factor for Analysis and Evaluation of Factors on Core Loss Density Increase in IPMSM

Performance optimization of permanent magnet synchronous motor by cogging torque reduction

Design and control of variable field permanent magnet motors

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