State-dependent sliding mode control for three-phase induction motor drives

This research focuses on investigation and evaluation of the robust speed control for threephase induction motor. A sliding mode control, which offers great potential to deal with uncertainties such as parameter variation and external load disturbances, is examined. The main obstacle of conventional...

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Main Author:	Fizatul Aini, Patakor
Format:	Thesis
Language:	English English
Published:	2014
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/14901/1/STATE-DEPENDENT%20SLIDING%20MODE%20CONTROL%20FOR%20THREEPHASE%2024pages.pdf http://eprints.utem.edu.my/id/eprint/14901/2/State-dependent%20sliding%20mode%20control%20for%20three-phase%20induction%20motor%20drives.pdf
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id	my-utem-ep.14901
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spelling	my-utem-ep.149012022-06-13T12:18:37Z State-dependent sliding mode control for three-phase induction motor drives 2014 Fizatul Aini, Patakor T Technology (General) TK Electrical engineering. Electronics Nuclear engineering This research focuses on investigation and evaluation of the robust speed control for threephase induction motor. A sliding mode control, which offers great potential to deal with uncertainties such as parameter variation and external load disturbances, is examined. The main obstacle of conventional sliding mode control is caused by discontinuous function of high control activity which is known as chattering phenomenon. In this research, this chattering phenomenon is significantly reduced by a newly developed algorithm. A fast sigmoid function with varying boundary layer algorithm is designed as a state-dependent to replace the discontinuous function in conventional sliding mode control as well as to avoid steady state error compare with the use of fixed boundary layer. It is known that the switching gain of sliding mode control is proportional to the chattering level, and normally a large switching gain is applied to handle the uncertainties. This research proposes a state-dependent sliding mode control which is the switching gain is proportional to the sigmoid function of the sliding mode controller. As a result, the boundary layer and the switching gain will change depending on uncertainties of the motor drives system. In this research, the induction motor is controlled by vector control strategy, using indirect field orientation and Space Vector Pulse Width Modulation technique. Simulation result have proved that the proposed state-dependent sliding mode control was able to deal with external load disturbances as well as effectively free from chattering phenomenon compared to conventional sliding mode control. Finally, experimental investigation is performed in order to confirm the theoretical and simulation findings. The proposed algorithm and the vector control strategy are developed in digital signal processing board. The experimental results have confirmed that the state-dependent sliding mode control is superior with regard to external load disturbances and variation in the reference speed setting when compared to PI speed control and conventional sliding mode control. 2014 Thesis http://eprints.utem.edu.my/id/eprint/14901/ http://eprints.utem.edu.my/id/eprint/14901/1/STATE-DEPENDENT%20SLIDING%20MODE%20CONTROL%20FOR%20THREEPHASE%2024pages.pdf text en public http://eprints.utem.edu.my/id/eprint/14901/2/State-dependent%20sliding%20mode%20control%20for%20three-phase%20induction%20motor%20drives.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=92063 phd doctoral Universiti Teknikal Malaysia Melaka Faculty of Electrical Engineering Sulaiman, Marizan
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Sulaiman, Marizan
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Fizatul Aini, Patakor State-dependent sliding mode control for three-phase induction motor drives
description	This research focuses on investigation and evaluation of the robust speed control for threephase induction motor. A sliding mode control, which offers great potential to deal with uncertainties such as parameter variation and external load disturbances, is examined. The main obstacle of conventional sliding mode control is caused by discontinuous function of high control activity which is known as chattering phenomenon. In this research, this chattering phenomenon is significantly reduced by a newly developed algorithm. A fast sigmoid function with varying boundary layer algorithm is designed as a state-dependent to replace the discontinuous function in conventional sliding mode control as well as to avoid steady state error compare with the use of fixed boundary layer. It is known that the switching gain of sliding mode control is proportional to the chattering level, and normally a large switching gain is applied to handle the uncertainties. This research proposes a state-dependent sliding mode control which is the switching gain is proportional to the sigmoid function of the sliding mode controller. As a result, the boundary layer and the switching gain will change depending on uncertainties of the motor drives system. In this research, the induction motor is controlled by vector control strategy, using indirect field orientation and Space Vector Pulse Width Modulation technique. Simulation result have proved that the proposed state-dependent sliding mode control was able to deal with external load disturbances as well as effectively free from chattering phenomenon compared to conventional sliding mode control. Finally, experimental investigation is performed in order to confirm the theoretical and simulation findings. The proposed algorithm and the vector control strategy are developed in digital signal processing board. The experimental results have confirmed that the state-dependent sliding mode control is superior with regard to external load disturbances and variation in the reference speed setting when compared to PI speed control and conventional sliding mode control.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Fizatul Aini, Patakor
author_facet	Fizatul Aini, Patakor
author_sort	Fizatul Aini, Patakor
title	State-dependent sliding mode control for three-phase induction motor drives
title_short	State-dependent sliding mode control for three-phase induction motor drives
title_full	State-dependent sliding mode control for three-phase induction motor drives
title_fullStr	State-dependent sliding mode control for three-phase induction motor drives
title_full_unstemmed	State-dependent sliding mode control for three-phase induction motor drives
title_sort	state-dependent sliding mode control for three-phase induction motor drives
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Electrical Engineering
publishDate	2014
url	http://eprints.utem.edu.my/id/eprint/14901/1/STATE-DEPENDENT%20SLIDING%20MODE%20CONTROL%20FOR%20THREEPHASE%2024pages.pdf http://eprints.utem.edu.my/id/eprint/14901/2/State-dependent%20sliding%20mode%20control%20for%20three-phase%20induction%20motor%20drives.pdf
_version_	1747833847709433856

State-dependent sliding mode control for three-phase induction motor drives

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