A NOVEL SLITTED TOOTH CORE DESIGN to DECREASE LEAKAGE FLUX in INDUCTION MOTOR

Abstract

Induction motors, due to the extensive use in industrial applications, are dominant factor in terms of energy consumption in many countries. Especially in recent years, many studies have been realized to achieve higher energy savings in induction motors. Thus, even if a small percentage increases in efficiency would result in a huge amount of energy savings in a global scale. In this work, a new design for the core is proposed to increase the induction motor performance. In the proposed design, slits are inserted between the stator and the rotor teeth. In the slitted models proposed, the slit depth and width are optimized using Finite Element Method in F.E.M.M. (Finite Element Method Magnetics) software. Saturation points, variation of flux leakage and zigzag flux obtained from both proposed and original motor are given in comparison.