Transient Analysis of Induction Motor Using Different Simulation Models

Squirrel cage induction motors have wide range of applications in many industrial drive systems due to their simple construction, robust design and low operational costs. Their application becomes even wider as a result of implementation of voltage inverters providing very good speed-torque control characteristics. In this paper a dynamic behaviour of a squirrel cage induction motor type 2AZ 155-4 is analysed. Two simulation models are developed, the first one in Matlab/Simulink and the second one in PSIM enabling motor transient characteristics to be analysed. Information about the distribution of the magnetic flux density inside the motor cross section is gained by application of the Finite Elements Method (FEM)