Output Membership Function Tuning Of Fuzzy Logic Speed Controller For Induction Motor Drive Application

Mat Sarif, Amirul Syahiran Izman (2019) Output Membership Function Tuning Of Fuzzy Logic Speed Controller For Induction Motor Drive Application. Project Report. UTeM, Melaka. (Submitted)

Text Output Membership Function Tuning Of Fuzzy Logic Speed Controller For Induction Motor Drive Application - Amirul Syahiran Izman Mat Sarif - 24 Pages.pdf - Submitted Version Download (230kB)

Abstract

Nowadays, induction motor are the most common type of motor used in industries because there are some advantages of induction motor that compared to DC motor which is Low maintenance, robustness, low cost, high efficiency, good self-starting, and design simplicity. The most problematic of induction motor is at the speed. The speed is constant varies to frequency and pole. So, the problems of induction motor can be solved by the present of speed controller such PI speed controller and fuzzy Logic Speed Controller. The traditional indirect vector control system uses conventional PI controller in the outer speed loop because of the simplicity and stability. However, unexpected change in load conditions or environmental factors would produce overshoot, oscillation of motor speed, oscillation of the torque, long settling time and thus causes deterioration of drive performance. PI controller however only provides good response at their design operating condition which normally obtain in rated speed operations. Besides, there are problems with tuning the gain parameter of this controller. The gain is quietly hard to tune to acheive the high performance variation of induction motor. To overcome this, an intelligent controller based on Fuzzy Logic can be used to place the PI controller. The fuzzy logic has certain advantages compared to classical controllers such as simplicity of control, low cost, and the possibility to design without knowing the exact mathematical model of plant. Fuzzy logic controller brain is like human logic knowledge. So, it is easier to tune for increasing the motor performance. But, in fuzzy logic there have too many ways to tuning and there are some research gap of this controller. So, this project aim is to investigate the research gap that is effect of output Membership Function(MF) and analyze the various rules of output MF in order to increases the performance of induction motor. The simulation model of induction motor and their speed controller is designed by using Simulink MATLAB.

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