TY - JOUR
T1 - Consideration of number of series turns in switched-reluctance traction motor competitive to HEV IPMSM
AU - Chiba, Akira
AU - Takeno, Motoki
AU - Hoshi, Nobukazu
AU - Takemoto, Masatsugu
AU - Ogasawara, Satoshi
AU - Rahman, M. Azizur
N1 - Funding Information:
Manuscript received December 24, 2011; revised February 27, 2012; accepted March 28, 2012. Date of publication November 16, 2012; date of current version December 31, 2012. Paper 2011-EMC-631.R1, presented at the 2011 IEEE Energy Conversion Congress and Exposition, Phoenix, AZ, September 17–22, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Electric Machines Committee of the IEEE Industry Applications Society. This work was conducted as a part of the Li-EAD project supported by the New Energy and Industrial Technology Development Organization (NEDO) in Japan.
PY - 2012
Y1 - 2012
N2 - This paper shows a winding design consideration of a 50-kW switched-reluctance motor (SRM) for hybrid-electric-vehicle (HEV) applications. Increasing the number of turns in stator windings is effective in reducing the maximum current; thus, the inverter current rating is reduced. However, motor output power falls significantly at high speed because of the increased back electromotive force. Continuous current operation can enhance output power at high rotational speed. In this operation, phase current is increased, and hence, the motor output power is maintained at high rotational speed. However, continuous current operation results in a decrease in efficiency. Thus, there is a tradeoff in selecting the number of series turns. In this paper, two SRMs are constructed with the same dimensions, and their performance results, i.e., torque and efficiency ranges, are compared with those of the automotive industry standard interior-permanent-magnet motor for HEV applications.
AB - This paper shows a winding design consideration of a 50-kW switched-reluctance motor (SRM) for hybrid-electric-vehicle (HEV) applications. Increasing the number of turns in stator windings is effective in reducing the maximum current; thus, the inverter current rating is reduced. However, motor output power falls significantly at high speed because of the increased back electromotive force. Continuous current operation can enhance output power at high rotational speed. In this operation, phase current is increased, and hence, the motor output power is maintained at high rotational speed. However, continuous current operation results in a decrease in efficiency. Thus, there is a tradeoff in selecting the number of series turns. In this paper, two SRMs are constructed with the same dimensions, and their performance results, i.e., torque and efficiency ranges, are compared with those of the automotive industry standard interior-permanent-magnet motor for HEV applications.
KW - Hybrid vehicle
KW - switched reluctance
KW - switched-reluctance motor (SRM)
KW - torque density
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U2 - 10.1109/TIA.2012.2227093
DO - 10.1109/TIA.2012.2227093
M3 - Article
AN - SCOPUS:84872104155
SN - 0093-9994
VL - 48
SP - 2333
EP - 2340
JO - IEEE Transactions on Applications and Industry
JF - IEEE Transactions on Applications and Industry
IS - 6
M1 - 6352895
ER -