R.V.N. Melnik, H. Ying, P.B. Thogersen
Proceedings of the 6th Intern. Conference on Mechatronic Technology, Kitakyushu, Japan, pp.168--173, 2002
In this paper we have developed a model for the complete thermal analysis of induction motors accounting for motor losses in converting electrical energy into the mechanical output. Radial and axial cross-sections of the motor have been analized for a case study example based on a squirrel-cage totally enclosed fan-cooled induction motor. The results of this analysis are used as an input to a control loop allowing to prevent the motor overheating. The model permits calculations for a wide range of time-dependent loading conditions and frequencies.
Key words: Finite Element method; electromechanical systems; thermal analysis; induction motors; time-dependent loadings; control.