Advanced techniques on control & signal processing

Abstract

The temperature of electrical machines is one of the main factors limiting their performance. This temperature must respect the limits imposed by design and must not exceed them. Therefore, in order to be able to predict the temperature rise in the machines, thermal models are used. These allow on the one hand to thermally modeling the machines for monitoring, on the other hand to improve their design. This model must respect the complexity of the thermal phenomena by being able to take into account certain modifications on the design. This model must also consider the types of service of the machine, whether continuous, intermittent, and temporary or other types of service. In this paper, we deal with simulation of service type s1 - continuous service for different frequency of an induction motor. The main goal of this study is to prove the influence of the constant losses depend to the frequency to the stator and rotor winding temperature, the simulation results demonstrate to effect of the frequency to the temperature.