EXPERIMENTAL STUDY ON A PI-TYPE FUZZY CONTROLLER FOR SPEED CONTROL OF 3-PHASE ASYNCHRONOUS MOTOR USING LABVIEW

Abstract

In this paper, a combination of PI controller and fuzzy logic controller (FLC), also known as PI-type Fuzzy controller, is proposed for speed control of a 3-phase induction motor. The mathematical model which is based on the concept of vector control, and the dynamic equation of the indirect field-oriented induction motor are derived and presented in this study. The PI-type Fuzzy controller is then developed to ensure the stability of the system at the desired speed under variable load. The experiments are carried out with a 0.75 kW 3-phase induction motor using the NI MYRIO 1900 control card and LabView software to show the efficiency of the controller. The obtained experimental results demonstrate the superior performance of the proposed controller compared to conventional PI and fuzzy controllers, especially when there is a variable load during control.