Performance Analysis Of Direct Torque Control Of Induction Machines

This thesis presents the analysis of the effects of hysteresis controllers on performance of direct torque control (DTC) of induction machines. The motivation of this research is that to provide the consideration for the designer in choosing appropriate bandwidth to have high performance of DTC dri...

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Main Author:	Raja Nor Azrin, Raja Yunus
Format:	Thesis
Language:	English
Published:	2015
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/17045/1/Performance%20Analysis%20Of%20Direct%20Torque%20Control%20Of%20Induction%20Machines%2024%20Pages.pdf
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spelling	my-utem-ep.170452016-08-19T07:13:12Z Performance Analysis Of Direct Torque Control Of Induction Machines 2015 Raja Nor Azrin, Raja Yunus T Technology (General) TK Electrical engineering. Electronics Nuclear engineering This thesis presents the analysis of the effects of hysteresis controllers on performance of direct torque control (DTC) of induction machines. The motivation of this research is that to provide the consideration for the designer in choosing appropriate bandwidth to have high performance of DTC drives. It should be noted that the DTC drive has gained widely acceptance for many industrial applications due to its simplicity. However, the DTC which is based on hysteresis comparators has two major drawbacks, namely variable switching frequency and larger torque ripple. It can be shown that the DTC performance may deteriorate if the inappropriate flux or/and torque band width are chosen. This research is aimed to analyze DTC performances in terms of total harmonic distortion (THO), torque ripple and switching frequency for variations of torque and flux hysteresis bandwidths. At first, the modeling of induction machine and study of principle of DTC were carried out, before they were being simulated using MA TLAB-Simulink. The problems which are mainly associated in hysteresis controllers were identified by simulating the DTC of induction machine at different applications of hysteresis bandwidth, sampling frequency and operating condition (e.g. different of load torque and speed levels). By analyzing the DTC performances through simulations, it can provide useful information for the designer to identify the root of problem and hence chooses the appropriate hysteresis bandwidths at different operating conditions to achieve high DTC performance. UTeM 2015 Thesis http://eprints.utem.edu.my/id/eprint/17045/ http://eprints.utem.edu.my/id/eprint/17045/1/Performance%20Analysis%20Of%20Direct%20Torque%20Control%20Of%20Induction%20Machines%2024%20Pages.pdf text en public http://library.utem.edu.my:8000/elmu/index.jsp?module=webopac-d&action=fullDisplayRetriever.jsp&szMaterialNo=0000097137 masters Universiti Teknikal Malaysia Melaka Faculty of Electrical Engineering
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Raja Nor Azrin, Raja Yunus Performance Analysis Of Direct Torque Control Of Induction Machines
description	This thesis presents the analysis of the effects of hysteresis controllers on performance of direct torque control (DTC) of induction machines. The motivation of this research is that to provide the consideration for the designer in choosing appropriate bandwidth to have high performance of DTC drives. It should be noted that the DTC drive has gained widely acceptance for many industrial applications due to its simplicity. However, the DTC which is based on hysteresis comparators has two major drawbacks, namely variable switching frequency and larger torque ripple. It can be shown that the DTC performance may deteriorate if the inappropriate flux or/and torque band width are chosen. This research is aimed to analyze DTC performances in terms of total harmonic distortion (THO), torque ripple and switching frequency for variations of torque and flux hysteresis bandwidths. At first, the modeling of induction machine and study of principle of DTC were carried out, before they were being simulated using MA TLAB-Simulink. The problems which are mainly associated in hysteresis controllers were identified by simulating the DTC of induction machine at different applications of hysteresis bandwidth, sampling frequency and operating condition (e.g. different of load torque and speed levels). By analyzing the DTC performances through simulations, it can provide useful information for the designer to identify the root of problem and hence chooses the appropriate hysteresis bandwidths at different operating conditions to achieve high DTC performance.
format	Thesis
qualification_level	Master's degree
author	Raja Nor Azrin, Raja Yunus
author_facet	Raja Nor Azrin, Raja Yunus
author_sort	Raja Nor Azrin, Raja Yunus
title	Performance Analysis Of Direct Torque Control Of Induction Machines
title_short	Performance Analysis Of Direct Torque Control Of Induction Machines
title_full	Performance Analysis Of Direct Torque Control Of Induction Machines
title_fullStr	Performance Analysis Of Direct Torque Control Of Induction Machines
title_full_unstemmed	Performance Analysis Of Direct Torque Control Of Induction Machines
title_sort	performance analysis of direct torque control of induction machines
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Electrical Engineering
publishDate	2015
url	http://eprints.utem.edu.my/id/eprint/17045/1/Performance%20Analysis%20Of%20Direct%20Torque%20Control%20Of%20Induction%20Machines%2024%20Pages.pdf
_version_	1747833912375115776

Performance Analysis Of Direct Torque Control Of Induction Machines

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