Characteristic analysis of a flux-reversal motor driven by a four-switch converter with a compensated current regulation

Article type: Research Article

Authors: Kim, Tae Heoung^a

Affiliations: [a] Department of Electrical Engineering, Engineering Research Institute, Gyeongsang National University, Jinjudaero 501, Jinju-si, Gyeongnam 660-701, Korea. Tel.: +82 55 772 1717; Fax: +82 55 772 1719; E-mail: ktheoung@gnu.ac.kr

Abstract: A 3-phase flux-reversal motor (FRM) driven by a 6-switch converter has been studied for its various merits such as a low inertia, a high efficiency and fault tolerance. However, it is needed to develop the FRM with a 4-switch converter to reduce motor and converter construction costs. Among the many different 4-switch converter topologies, the one with a compensated current regulation base on a novel pulse width modulation (PWM) control technique has been proposed as a good solution. In this paper, we introduce a two dimensional time-stepped voltage source finite-element method (2D-FEM) to analyze the FRM driven by the proposed 4-switch converter. We also compare the characteristics of the FRM when the compensated current regulation is adopted or not. To verify the analysis method and simulated results, the 4-switch converter and the prototype FRM are built and experiments are performed.

Keywords: Flux-reversal machine, 4-switch converter, finite element method

DOI: 10.3233/JAE-130065

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 47, no. 1, pp. 1-9, 2015