Precise calculation and optimization of rotor eddy current losses in high speed permanent magnet machine

Etemadrezaei, Mohammad; Wolmarans, J.J.; Polinder, H.; Ferreira, J.A.

doi:10.1109/icelmach.2012.6350061

Cited by 20 publications

(4 citation statements)

References 25 publications

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“…The use of a carbon-fiber/epoxy sleeve gave 5.9-times lower rotor losses than the Inconel718 sleeve according to [149]. The PM losses decreased when a copper layer was put between a carbon fiber sleeve and PM ring [150].…”

Section: Materials Type Effectmentioning

confidence: 96%

Mathematical Models for the Design of Electrical Machines

2021

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respectively, with a focus on the design and optimization of the high-speed surface-mounted permanent-magnet (PM) synchronous motor for the drive of a fuel cell air-compressor. From 2014 to 2016, he was the Head of the "Unconventional Thermal and Electrical Machines" team.Presently, he is the Head of the "Electrical Actuators" group in the "Hybrid & Fuel Cell Systems, Electrical Machines (SHARPAC)" team. He works with ALSTOM Transports (Ornans, France), and RENAULT Technocenter (Guyancourt, France), where he is involved in the modelling, design and optimization of electrical systems and, in particular, induction and PM synchronous (radial and/or axial flux) machines, creative problem-solving, and electrical propulsion/traction. He is currently an Associate Professor with the Dép. ENERGIE, FEMTO-ST Institute, affiliated with the CNRS

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Section: Materials Type Effectmentioning

confidence: 96%

Mathematical Models for the Design of Electrical Machines

2021

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Section: Materials Type Effectmentioning

confidence: 96%

Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis

Ouamara

Dubas

2019

MCA

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Eddy-current analysis is an important research field. This phenomenon occurs in multiple areas and has several applications: electromagnetic braking, repulsive effects, levitation, etc. Thereby, this paper is limited to eddy-current study in rotating electrical machines. In the design process, if the permanent-magnet (PM) loss calculation is very important, the overheating due to eddy-currents must be taken into account. The content of this paper includes sources, calculation methods, reduction techniques, and thermal analysis of PM eddy-current losses. This review aims to act as a guide for the reader to learn about the different aspects and points to consider in studying the eddy-current.

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“…Fractional slot winding PM machines are widely used in aircraft applications thanks to their compactness, but they are characterized by high ratio of armature reaction losses (Yamazaki et al, 2009). The losses in the magnets have different origins which can be grouped in three categories (Lateb, 2006;Etemadrezaei et al, 2012):…”

Section: Introductionmentioning

confidence: 99%

Characterization of rotor losses in permanent magnet machines

Caunes

Takorabet

Chaithongsuk

et al. 2020

COMPEL

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Purpose The purpose of this paper is to present a synthesis of the analysis and modeling of the rotor losses in high speed permanent magnets motors. Design/methodology/approach Three types of losses are as a result of eddy currents in the conductive parts of the rotor. The analysis includes their characterization and the setup of a numerical model using finite element method. The adopted methodology is based on the separation of the losses which allows a better understanding of the physical phenomena. Each type of losses will be modeled and computed separately. Findings It is possible to make a precise estimate of the different losses in the rotor while keeping a relatively short computing time. Research limitations/implications The analysis is applied on a high-speed permanent magnet motor for avionic application. The model is validated with the commercial finite element model (FEM) software Flux2D. Originality/value The developed model allows an important save in terms of CPU-time compared to commercial FEM software while staying accurate. The separation of each losses and their sources is important for motor engineers and was requested for them to improve the designs more easily.

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Precise calculation and optimization of rotor eddy current losses in high speed permanent magnet machine

Cited by 20 publications

References 25 publications

Mathematical Models for the Design of Electrical Machines

Mathematical Models for the Design of Electrical Machines

Permanent-Magnet Eddy-Current Losses: A Global Revision of Calculation and Analysis

Characterization of rotor losses in permanent magnet machines

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