Design and losses analysis of a high power density machine for flooded pump applications

Al-Timimy, Ahmed and Giangrande, Paolo and Degano, Michele and Zeyuan, Xu and Galea, Michael and Gerada, C. and Lo Calzo, Giovanni and Zhang, He and Xia, Liqun (2018) Design and losses analysis of a high power density machine for flooded pump applications. IEEE Transactions on Industry Applications . ISSN 1939-9367

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Abstract

This paper describes the design process of a 10 kW 19000 rpm high power density surface mounted permanent magnet synchronous machine for a directly coupled pump application. In order to meet the required specifications, a compact machine, with cooling channels inside the slots and flooded airgap, has been designed through finite element optimization. For high power density, high speed machines, an accurate evaluation of the power losses and the electromechanical performance is always extremely challenging. In this case, the completely flooded application adds to the general complexity. Therefore this paper deals with a detailed losses analysis (copper, core, eddy current and mechanical losses) considering several operating conditions. The experimental measurements of AC copper losses as well as the material properties (BH curve and specific core losses), including the manufacturing process effect on the stator core, are presented. Accurate 3D finite element models and computational fluid dynamics analysis have been used to determine the eddy current losses in the rotor and windage losses respectively. Based on these detailed analysis, the no load and full load performance are evaluated. The experimental results, on the manufactured prototype, are finally presented to validate the machine design.

Item Type: Article
Additional Information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: High power density, high speed, losses calculation, performance analysis, permanent magnet motors
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number: 10.1109/TIA.2018.2821623
Depositing User: Burns, Rebecca
Date Deposited: 10 Apr 2018 09:44
Last Modified: 10 Apr 2018 09:48
URI: http://eprints.nottingham.ac.uk/id/eprint/51053

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