Abstract
The thermal issue of electric vehicles is an important criterion for the design of the motor and for choosing the adequate cooling system to assure propels electrical performance and reliability. The thermal behavior of motor depends on the heat sources and on the motor geometry. This paper presents the thermal analysis of permanent magnet synchronous motor (PMSM) for electric vehicles traction application. The thermal design technique used is the analytical lumped circuit. An analytical copper and iron loss model is presented also two cooling systems are applied to this model, cooling by air and water. A comparison is carried out so choosing the best solution. The equivalent circuit of the motor is implemented and simulated with MATLAB simulator. The results obtained show the effectiveness of the designed motor and its good satisfaction of the specification book.
