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Induction motor drive system performance under influence of voltage sags and interruptions

Doctor of Philosophy in Electrical Systems Engineering

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Bibliographic Details
Main Author: Surya, Hardi
Other Authors: Muzamir, Isa, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2016
Subjects:
Electric motors, Induction
Electromotive force
Electric power systems
Short circuits
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77901
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spelling my.unimap-779012023-02-21T07:22:42Z Induction motor drive system performance under influence of voltage sags and interruptions Surya, Hardi Muzamir, Isa, Dr. Electric motors, Induction Electromotive force Electric power systems Short circuits Doctor of Philosophy in Electrical Systems Engineering This thesis presents performance of induction motor drive system under influence of voltage sags and interruptions. The drive system consists of an induction motor and adjustable speed drive (ASD) that connected in series. Its terminal is connected to power supply through a contactor and a circuit breaker. Contactor, ASD and induction motor have being recognized as sensitive equipment to voltage sags and interruptions. Investigation was started by identifying characteristics of voltage sags. The characteristics considered are magnitude and duration of voltage sags, point on wave of sag initiation (POW), symmetrical and unsymmetrical, repetitive and multistage voltage sags as well as non-sinusoidal voltage sags. The testing results of three different contactors show that their performances are greatly influenced by magnitude, duration and POW of sag initiation. Non-sinusoidal voltage sags did not have significant influence. In general, the contactors’ sensitivity increased when the contactors were subjected to deeper and longer voltage sags. The POW influence of sag initiation on three contactors have kepekaan es almost similar against sag duration. Sensitivity of the contactors to sag duration decreases for the voltage sags with POW close to 90o. Influence of POW on the contactor was shown also in repetitive voltage sags. It tripped is slower for first voltage sag with the POW close to 90o. Testing has been carried out in various conditions on ASD such as symmetrical voltage sag (type A voltage sag), unsymmetrical voltage sags (types B, C and D), non-sinusoidal voltage sag supply and sinusoidal voltage sags with various speeds and rated loads. Rectifier diodes behaviour to conduct current are influenced by sag magnitude and sag types. Ride through of the ASD against voltage sags was greatly influenced by performance of the rectifier diodes. Type A and type C voltage sags caused all rectifier diodes were reverse biased. These two types of voltage sags caused the ASD to trip. Type A produced higher sensitivity than type C to sag magnitude. 2016 2023-02-21T07:17:51Z 2023-02-21T07:17:51Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77901 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Electrical Systems Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Electric motors, Induction
Electromotive force
Electric power systems
Short circuits
spellingShingle Electric motors, Induction
Electromotive force
Electric power systems
Short circuits
Surya, Hardi
Induction motor drive system performance under influence of voltage sags and interruptions
description Doctor of Philosophy in Electrical Systems Engineering
author2 Muzamir, Isa, Dr.
author_facet Muzamir, Isa, Dr.
Surya, Hardi
format Thesis
author Surya, Hardi
author_sort Surya, Hardi
title Induction motor drive system performance under influence of voltage sags and interruptions
title_short Induction motor drive system performance under influence of voltage sags and interruptions
title_full Induction motor drive system performance under influence of voltage sags and interruptions
title_fullStr Induction motor drive system performance under influence of voltage sags and interruptions
title_full_unstemmed Induction motor drive system performance under influence of voltage sags and interruptions
title_sort induction motor drive system performance under influence of voltage sags and interruptions
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77901
_version_ 1772813083679391744
score 13.160551

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