Design and Simulation of Fuzzy Logic Based Speed Control for an SVPWM Inverter-fed Induction Motor Considering Core Loss and Stray Load Losses

Conventional PI controller has overshoot effect at the transient period of the speed response curve. Most of the controllers of Induction Motor ( IM) for industrial applications have been designed based on PI controller without consideration of core loss ( CL) and stray load loss ( SLL). In order to obtain the precise performance of torque as well as speed and flux, the mentioned losses should be considered for designing the control system. Conventionally, the gain of PI controllers is chosen by trial and error method which needs a lot of computational time. Fuzzy Logic Controller ( FLC) is suitable for nonlinear system such as IM. In this paper, a FLC based speed controller is designed to control the speed of the IM taking CL and SLL into account. Simulations are carried out by using MATLAB/SIMULINK. The simulations result shows that the controller is capable to control the speed of IM without any overshoot and steady-state error effect.