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Development of a High-Speed Permanent Magnet SiC-Based Drive with Integrated Input Filters

Lookup NU author(s): Dr Xu Deng, Dr Simon Lambert, Professor Barrie Mecrow

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This is the authors' accepted manuscript of an article that has been published in its final definitive form by IEEE, 2020.

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Abstract

AC Input filters in high speed drives are generally large and can even exceed the mass of the motor. This paper firstly seeks to reduce the volume and overall mass of the drive through integrating the input inductors with the magnetic circuit of the machine. The magnetic circuits are shared without cross-coupling through careful choice of the filter and motor pole numbers. Finite Element Analysis (FEA) is used to check that normal operation of the base PM machine is not affected by the integration and a demonstrator drive is built. Compared with discrete AC filters, the integration of the LCL filter inductors has given a very large volume reduction of 87.6%, producing a much more compact envelope than with the conventional filter inductors. Through a holistic approach to a combination of electrical, mechanical and thermal aspects of the drive system, the integrated drive exhibits significant mass and volume advantages over conventional discrete motor drives. Two major technical issues related to the power electronics development of the IMD are presented in the paper: investigation of a bus bar solution to manage a large number of winding terminals introduced from integrated LCL filters, and a compact SiC device based power electronics design.


Publication metadata

Author(s): Deng X, Mohamed M, Lambert S, Mecrow B

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Energy Conversion

Year: 2020

Issue: ePub ahead of Print

Online publication date: 12/02/2020

Acceptance date: 28/01/2020

Date deposited: 22/01/2020

ISSN (print): 0885-8969

ISSN (electronic): 1558-0059

Publisher: IEEE

URL: https://doi.org/10.1109/TEC.2020.2973449

DOI: 10.1109/TEC.2020.2973449


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