Title: Modelling and experimental validation of electrical characterisations of high speed flux reversal generator

Authors: B. Vidhya; K.N. Srinivas

Addresses: Department of Electrical and Electronics Engineering, B.S. Abdur Rahman Crescent University, Chennai 48, India ' Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Ramapuram, Chennai 89, India

Abstract: This paper makes an attempt to provide a comprehensive documentation of characterisation of high speed flux reversal generators (FRG). At first, a conventional design of FRG is proposed for high speed application. Then for this machine, keeping the minimisation of cogging torque as the major constraint, the design dimensions are fine tuned. A thorough static characterisation and dynamic characterisation on the finalised dimensions are presented. Finite element analysis is used for this purpose. Validation of the above characterisations has been made through an experimental setup. As magnetic material play an important part in the stator-rotor construction of high speed FRG, it is viewed that a novel soft magnetic material can enhance the performance of this machine. To this effort, a novel soft magnetic material called cobalt-iron (Hiperco 50A) is proposed whose analyses are also documented in this paper. As a whole, this paper can serve the purpose of a detailed electrical characterisation of FRG, which forms the contribution of this paper.

Keywords: flux reversal generator; FRG; static characterisation; cogging torque; dynamic characterisation; soft magnetic material; finite element method.

DOI: 10.1504/IJPELEC.2020.110065

International Journal of Power Electronics, 2020 Vol.12 No.3, pp.349 - 381

Received: 02 Jan 2018
Accepted: 19 May 2018
Published online: 05 Oct 2020 *

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