Title :
Calculation and identification of a thermal equivalent circuit of a water cooled induction motor for electric vehicle applications
Author :
Henneberger, G. ; Yahia, K. Ben ; Schmitz, M.
Author_Institution :
Inst. fur Elektrische Maschinen, Univ. of Technol., Aachen, Germany
Abstract :
High performance for electric vehicle drives is obtained by allowing the machine to carry a load exceeding its rated values for short periods of time. The limit of such overloading is set by the maximum temperature rise. In this case it is essential to predict the behaviour of the machine for any time varying load. With the help of a thermal equivalent circuit, the dynamic temperature behaviour of the machine can be determined. This paper presents an analytical calculation of the elements of the thermal equivalent circuit of an induction motor and the result of the estimation of these elements using different parameter identification methods. Results are presented for a 17 kW induction motor built for an electric vehicle
Keywords :
cooling; electric vehicles; equivalent circuits; induction motor drives; parameter estimation; thermal analysis; 17 kW; electric vehicle applications; machine behaviour prediction; maximum temperature rise; overloading; parameter identification methods; thermal equivalent circuit; time varying load; water cooled induction motor;
Conference_Titel :
Electrical Machines and Drives, 1995. Seventh International Conference on (Conf. Publ. No. 412)
Conference_Location :
Durham
Print_ISBN :
0-85296-648-2
DOI :
10.1049/cp:19950825
