Design and Analysis for Loss Reduction of High-Speed Permanent Magnet Motor using a Soft Magnetic Composite

Lee, Sungho; Kim, Yong-Jae; Lee, Kyu-Seok; Kim, Sungjin

doi:10.4283/jmag.2015.20.4.444

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…Soft magnetic composites (SMCs) are being evaluated to replace conventional electrical steel sheets in numerous devices and systems [5,6]. SMCs also enable building of new structures of electric motors and devices [7,8].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Soft Magnetic Composites at the Temperature of Liquid Nitrogen

2017

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Soft magnetic composites are used in a wide range of applications working in different environmental conditions, between others, in different temperatures. Nowadays, devices often work in cryogenic temperatures. The paper shows influence of liquid nitrogen temperature on mechanical properties of soft magnetic composites prepared from ABC100.30 powder bonded by epoxy resin. Mechanical properties of samples were measured in room and liquid nitrogen temperatures. Compressive strength and transverse rapture strength increase with decreasing temperature. This type of soft magnetic composite can be applied in magnetic circuits of devices working in cryogenic temperatures. The results of measurement show that new devices, especially electric machines, working in these temperatures can be designed with higher mechanical loadings than devices working at room temperature.

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Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Soft Magnetic Composites at the Temperature of Liquid Nitrogen

2017

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Effect of Geometrical Parameters on Optimal Design of Synchronous Reluctance Motor

Nagarajan¹,

Kamaraj²,

Balaji³

et al. 2016

Journal of Magnetics

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Torque ripple minimization without decrease in average torque is a vital attribute in the design of Synchronous Reluctance (SynRel) motor. As the design of SynRel motor is an arduous task, which encompasses many design variables, this work first analyses the significance of the effect of varying the geometrical parameters on average torque and torque ripple and then proposes an extensive optimization procedure to obtain configurations with improved average torque and minimized torque ripple. A hardware prototype is fabricated and tested. The Finite Element Analysis (FEA) software tool used for validating the test results is MagNet 7.6.0.8. Multi Objective Particle Swarm Optimization (MOPSO) is used to determine the various designs meeting the requirements of reduced torque ripple and improved torque performance. The results indicate the efficacy of the proposed methodology and substantiate the utilization of MOPSO as a significant tool for solving design problems related to SynRel motor.

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Electromagnetic Structure Design Study of Fault-Tolerant Interior Permanent Magnet Machines for Electric Vehicles Using Harmonic Order Shaping

Zeng¹,

Zhao²,

Chen³

2016

Journal of Magnetics

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Although pretty methods have been proposed to reduce torque ripple, they generally suffer from the decreased torque density. This paper will investigate the spoke-type interior permanent magnet (IPM) machine with shaping methods, including the sinusoidal (SIN), the inverse cosine (ICS), the sinusoidal with third harmonic (SIN+3rd), and the inverse cosine with third harmonic (ICS+3rd). In order to obtain low torque ripple and high torque density, the shaping method applied in rotor and stator at the same time, termed as the dualshaping method, is proposed. This method is analytically derived and further confirmed by finite element method (FEM). It turns out that the ICS and ICS+3rd shaping methods are more suitable for outer rotors, while the SIN and the SIN+3rd shaping method should be used in inner stators. The original machine, the singular shaped machines and the dual-shaped machines on electromagnetic performances are compared for evaluation. The results verify that the dual-shaping method can improve torque density, whilst reducing torque ripple.

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Design and Analysis for Loss Reduction of High-Speed Permanent Magnet Motor using a Soft Magnetic Composite

Cited by 3 publications

References 12 publications

Mechanical Properties of Soft Magnetic Composites at the Temperature of Liquid Nitrogen

Mechanical Properties of Soft Magnetic Composites at the Temperature of Liquid Nitrogen

Effect of Geometrical Parameters on Optimal Design of Synchronous Reluctance Motor

Electromagnetic Structure Design Study of Fault-Tolerant Interior Permanent Magnet Machines for Electric Vehicles Using Harmonic Order Shaping

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