Simulation of Slip Compensation for Induction Motor Drive Using MATLAB

Abstract

This paper mainly focuses on slip compensation in three-phase induction motor. It is important to reduce the slip of induction motor to maintain stable operation at different frequencies and loads. In order to decrease the slip, the difference of actual rotor and synchronous speed is added to the rotor speed using comparators and PI controllers. The decrease in slip is compensated by increasing the rotor frequency and feeding back to the input. Two techniques are being used in this project. They are feedback control technique and feedforward control technique. These are used to maintain the constant speed operation of an induction motor. This project deals with the slip compensation of open-loop v/f control of induction motor drive MATLAB. The slip compensation is used to improve the accuracy of the speed when the load is operated. It is mainly effective for v/f control technique.