Performance Analysis of Induction Motor Based on Core Material
Abstract
One of the most important factors of an induction motor is to obtain the best electromagnetic torque for an induction motor, which depends on the type and specification of the magnetic materials of the stator and rotor. The proposed method in this paper is based on selecting the core materials which can have minimum core losses, minimum cogging torque, good electromagnetic torque, and best efficiency. The purpose of this research is to improve the electromagnetic torque of a three-phase induction motor by investigating core magnetic materials and analyzing the motor's performance. The five magnetic materials (Cobalt Iron, Steel 1010, Steel 1018, Silicon Steel M270, and Nickel-Iron) are used. The test method is carried out using a two-dimensional flow environment to examine the electrical and mechanical properties of magnetic materials that are used based on finite element analysis (FEA). The simulation results showed that torque, efficiency, Iron losses (Bertotti), and steady-state time of speed are 37.52 N.m, 91.1%, 84.78 w, and 0.25 sec, respectively, for nickel-iron, which was the best material compared to the performance of other materials. These materials were further tested for their performance in two cases (no load and at load).
Keywords: core magnetic materials, motor performance, induction motor, flux environment, finite element.
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