Optimal Design Proposal for Capacitance in Operating Area Expandable SR Motor Drive Circuit

A novel drive circuit for switched reluctance (SR) motor expanding the operating area under limited source voltage has been proposed by adding external capacitor in series to extend supply voltage. However, the capacitance of the external capacitor has not been optimized to be sufficient to extend t...

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Bibliographic Details
Published in:IEEJ JOURNAL OF INDUSTRY APPLICATIONS 2023/07/01, Vol.12(4), pp.711-718
Main Authors: Sugai, Ryuya, Kurishima, Taisei, Goto, Hiroki, Funato, Hirohito, Haruna, Junnosuke
Format: Article
Language:English
Subjects:
capacitance
drive circuit
electric vehicle
switched reluctance motor
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Summary:A novel drive circuit for switched reluctance (SR) motor expanding the operating area under limited source voltage has been proposed by adding external capacitor in series to extend supply voltage. However, the capacitance of the external capacitor has not been optimized to be sufficient to extend the driving range of the SR motor. Subsequently, the authors have previously proposed a conservative design method for capacitance by linearizing the winding current. However, there is a problem in that the difference between the conservative design and the simulated fluctuation of the capacitor voltage is large. In this paper, an optimal design method is proposed for the capacitance by using an LC equivalent circuit at the beginning of excitation and demagnetization.
ISSN:2187-1094
2187-1108
DOI:10.1541/ieejjia.22007976