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A switched reluctance machine-based starter/alternator for more electric cars

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3 Author(s)
B. Fahimi ; Dept. of Electr. & Comput. Eng., Univ. of Missouri-Rolla, Rolla, MO, USA ; A. Emadi ; R. B. Sepe

Switched reluctance machines (SRMs) are considered as serious candidates for starter/alternator (S/A) systems in more electric cars. Robust performance in the presence of high temperature, safe operation, offering high efficiency, and a very long constant power region, along with a rugged structure contribute to their suitability for this high impact application. To enhance these qualities, we have developed key technologies including sensorless operation over the entire speed range and closed-loop torque and speed regulation. The present paper offers an in-depth analysis of the drive dynamics during motoring and generating modes of operation. These findings will be used to explain our control strategies in the context of the S/A application. Experimental and simulation results are also demonstrated to validate the practicality of our claims.

Published in:

IEEE Transactions on Energy Conversion  (Volume:19 ,  Issue: 1 )