Sensorless speed control of induction motor using differential algebraic speed estimator

There are multiple techniques that have been proposed to estimate the speed of induction motor without the shaft sensor. Since at low speed range most induction motor normally has poor driving performance, there are speed estimation concern at this range. Sensorless speed estimator based on the diff...

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Main Author:	Ahmad, Hafidzah
Format:	Thesis
Language:	English
Published:	2013
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/38184/1/HafidzahAhmadMFKE2013.pdf
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id	my-utm-ep.38184
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spelling	my-utm-ep.381842018-04-12T05:42:02Z Sensorless speed control of induction motor using differential algebraic speed estimator 2013-01 Ahmad, Hafidzah TK Electrical engineering. Electronics Nuclear engineering There are multiple techniques that have been proposed to estimate the speed of induction motor without the shaft sensor. Since at low speed range most induction motor normally has poor driving performance, there are speed estimation concern at this range. Sensorless speed estimator based on the differential-algebraic approach is implemented in this project. The methodology used is based on advanced modeling capabilities, represented by dynamic modeling of induction motor. It begins with deriving the mathematical model of the induction motor. It also shows that the dynamic equation of induction motor had been transform into suitable model by using Direct-Quadrature (d-q) transformation. Then, the estimator is designed based on differential equations properties. A differential algebraic approach is applied in this project to estimate the speed of induction motor using the measured voltages and current. The second and third order polynomial equation which the coefficient is depend on the stator voltage, stator current and their derivatives is shown to be satisfied. The determined speed is then used in the stabilize dynamic estimator to obtain the smooth estimated speed. With full knowledge of the machine parameters the simulations using MATLAB Simulink is implemented. The estimator demonstrates that the response of induction motor speed is improved especially at a low speed, high precision in speed control, and is more robust to parametric variation and load torque variation. 2013-01 Thesis http://eprints.utm.my/id/eprint/38184/ http://eprints.utm.my/id/eprint/38184/1/HafidzahAhmadMFKE2013.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Ahmad, Hafidzah Sensorless speed control of induction motor using differential algebraic speed estimator
description	There are multiple techniques that have been proposed to estimate the speed of induction motor without the shaft sensor. Since at low speed range most induction motor normally has poor driving performance, there are speed estimation concern at this range. Sensorless speed estimator based on the differential-algebraic approach is implemented in this project. The methodology used is based on advanced modeling capabilities, represented by dynamic modeling of induction motor. It begins with deriving the mathematical model of the induction motor. It also shows that the dynamic equation of induction motor had been transform into suitable model by using Direct-Quadrature (d-q) transformation. Then, the estimator is designed based on differential equations properties. A differential algebraic approach is applied in this project to estimate the speed of induction motor using the measured voltages and current. The second and third order polynomial equation which the coefficient is depend on the stator voltage, stator current and their derivatives is shown to be satisfied. The determined speed is then used in the stabilize dynamic estimator to obtain the smooth estimated speed. With full knowledge of the machine parameters the simulations using MATLAB Simulink is implemented. The estimator demonstrates that the response of induction motor speed is improved especially at a low speed, high precision in speed control, and is more robust to parametric variation and load torque variation.
format	Thesis
qualification_level	Master's degree
author	Ahmad, Hafidzah
author_facet	Ahmad, Hafidzah
author_sort	Ahmad, Hafidzah
title	Sensorless speed control of induction motor using differential algebraic speed estimator
title_short	Sensorless speed control of induction motor using differential algebraic speed estimator
title_full	Sensorless speed control of induction motor using differential algebraic speed estimator
title_fullStr	Sensorless speed control of induction motor using differential algebraic speed estimator
title_full_unstemmed	Sensorless speed control of induction motor using differential algebraic speed estimator
title_sort	sensorless speed control of induction motor using differential algebraic speed estimator
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2013
url	http://eprints.utm.my/id/eprint/38184/1/HafidzahAhmadMFKE2013.pdf
_version_	1747816525044121600

Sensorless speed control of induction motor using differential algebraic speed estimator

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