DocumentCode :
3611840
Title :
Switching technique for minimisation of DC-link capacitance in switched reluctance machine drives
Author :
Suppharangsan, Wisaruda ; Jiabin Wang
Author_Institution :
Fac. of Eng., Burapha Univ., Chonburi, Thailand
Volume :
5
Issue :
4
fYear :
2015
Firstpage :
185
Lastpage :
193
Abstract :
A switched reluctance (SR) machine drive has many advantages over other competing drive technologies in terms of reliability and fault tolerance, which make it particularly attractive for safety critical applications in more electric aircraft technologies. However, an SR machine drive requires a large DC-link capacitor to buffer the de-fluxing magnetic energy during a phase commutation period and to filter out AC harmonic currents from contaminating the DC supply. This study describes a switching technique for minimisation of the DC-link capacitance in SR machine drives and presents experimental results from a laboratory demonstrator. The proposed switching method aims to maintain a constant average DC-link current over a switching cycle, thus eliminating commutation-induced low-frequency current harmonics. Consequently, the DC-link capacitance can be minimised. The effectiveness of the proposed technique is assessed through filter design and demonstrated by experiments with a dSPACE control platform.
Keywords :
fault tolerance; reliability; reluctance motor drives; AC harmonic currents; DC supply; DC-link capacitance; DC-link capacitance minimisation; DC-link capacitor; SR machine drive; SR machine drives; commutation-induced low-frequency current harmonics; dSPACE control platform; de-fluxing magnetic energy; drive technologies; electric aircraft technologies; fault tolerance; filter design; phase commutation period; reliability; safety critical applications; switched reluctance machine drives; switching method; switching technique;
fLanguage :
English
Journal_Title :
Electrical Systems in Transportation, IET
Publisher :
iet
ISSN :
2042-9738
Type :
jour
DOI :
10.1049/iet-est.2014.0058
Filename :
7348731
Link To Document :
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