An Overview on Performance Improvement of an Induction Motors (IM) – A Review

Abstract: Several technologies of motors are available in the market, since the most affordable in terms of cost up to the most efficient or compact one. Besides that, motors have to be able to meet many specific application requirements, like speed range, installation, safety, reliability, low level of noise and vibration, long life, maintenance etc. Induction motors account for approximately 50 % of the overall electricity use in industrialized countries. In the agricultural and commercial sectors also, power consumption by ac motors is quite substantial. On an average, the energy consumed by a motor during its life cycle is 60-100 times the initial cost of the motor. However, in spite of all motor technologies, induction motors remain the most used in the market, especially when variable speed is not necessary. This paper presents a review on performance improvement factors of the Induction Motor (IM) operation. This paper discussed the factors are follows: (a) Efficiency improvement of IM (b) Torque control techniques of IM, and (c) Speed control techniques of IM.

Keywords: Performance improvement, Induction motor, Efficiency, Torque control, Speed control.