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PI hysteresis current control technique for three phase induction motor by using Matlab and Arduino

Mohamed Tazudin, Faizul Rizal (2014) PI hysteresis current control technique for three phase induction motor by using Matlab and Arduino. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

When an AC motor is connected directly to the main supply, the motor will accelerate quickly and then rotate at a fixed speed which is dependent upon the electrical supply frequency and the motor design. For some applications fixed speed is acceptable and, by carefully selecting gearbox ratios, a desired final output speed can be achieved. However, for most applications, hard acceleration, unbraked deceleration and the inability to vary the speed and torque represent a serious problem. AC drives provide a solution by modifying the voltage and frequency of the AC supply to the motor. Control is achieved by either estimating the motor speed, known as open loop control, or by measuring the speed, known as closed loop control. Therefore this thesis is proposing to design a closed loop PI hysteresis (PIH) current controller for a three phase induction motor fed from an inverter. The objective by developing this control is to improve the performance of an AC induction motor output by comparing the actual measured currents of the motor with respect to their reference current. The difference is then corrected thus minimizing the current error. The controller is developed in Matlab / Simulink and interfaces with Arduino Uno controller where the controllers generates the PWM signal and send the signal to the gate driver of a three phase inverter to give a stable performance to the induction motor. A simple hardware implementation of the PIH current controller is designed and some simulation and experimental results are presented to demonstrate the validity of this approach.

Item Type: Thesis (Masters)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2000-2891 Dynamoelectric machinery and auxiliaries
Depositing User: Normajihan Abd. Rahman
Date Deposited: 08 Jul 2014 06:14
Last Modified: 08 Jul 2014 06:14
URI: http://eprints.uthm.edu.my/id/eprint/5489
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