Nonlinear model and momentary performance capability of a cage rotor induction machine used as an automotive combined starter-alternator

• Published in: IEEE transactions on industry applications Vol. 37; no. 3; pp. 840 - 846
• Main Authors: McCleer, P.J., Miller, J.M., Gale, A.R., Degner, M.W., Leonardi, F.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2001; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Automotive components; Automotive engineering; Automotive engines; Automotive industry; Cage; Diesel engines; Electric variables measurement; Equivalent circuits; Hybrid electric vehicles; Induction machines; Magnetic flux; Mathematical models; Nonlinearity; Rotors; Saturation magnetization; Stators; Velocity measurement
• ISSN: 0093-9994; 1939-9367
• DOI: 10.1109/28.924766

This paper presents the calculated and the measured performance capability of a cage rotor induction machine used as a direct connected, crankshaft speed, combined starter-alternator for an automotive diesel engine in an experimental hybrid electric vehicle. The calculated results are based on a nonlinear equivalent circuit model of the machine in which saturation is considered only in the stator and rotor magnetizing flux paths. The development details of this model are given as well as several sets of calculation results for a prototype induction machine. Finally, measured maximum performance results for the test machine are presented and compared with model-based calculated results for the same operating conditions of speed, terminal voltage and current.