Improvement of voltage SAGS, harmonic distortion and low power factor at distribution system by using voltage source converter (VSC) and active filter

For many years, power quality were not give a big issue to the power system, because it cause no effect on most of the loads connected to the distribution system. It happen because only motor and generator based system only operates at that time. When an induction motor is subjected to voltage sag,...

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Main Author:	Ismail, Noramin
Format:	Thesis
Language:	English
Published:	2018
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/78903/1/NoraminIsmailMFKE2018.pdf
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id	my-utm-ep.78903
record_format	uketd_dc
spelling	my-utm-ep.789032018-09-17T07:23:01Z Improvement of voltage SAGS, harmonic distortion and low power factor at distribution system by using voltage source converter (VSC) and active filter 2018-01 Ismail, Noramin TK Electrical engineering. Electronics Nuclear engineering For many years, power quality were not give a big issue to the power system, because it cause no effect on most of the loads connected to the distribution system. It happen because only motor and generator based system only operates at that time. When an induction motor is subjected to voltage sag, the motor still operates but with a lower output until the sag ends. It not harm the motor but only effect the performance of the motor. With the increasing use of sophisticated electronics based system, high efficiency variable speed drive, and power electronic controller, power quality has become an important agenda and it will cause increasing concern to utilities and customers. Nowadays, voltage sags is the most common type of power quality disturbance in the distribution system. Even though it happens only in the microseconds, but it can be caused huge impact on the electronic based system. Sometimes, when fault occurs in the electrical network the nearest network connected to the fault network will sense the voltage sags event. Although the electricity utilities and semiconductor or electronic based system companies have invested some substantial amount of investment to improve the reliability of the network but they still cannot control the external and internal factor that can causes the fault, such as lightning strike, third party digging, illegally excavation activity, wrongly operated during maintenance activity or protection relay malfunction and etc. Therefore, the important thing is to come out with the solution to prevent or mitigate the network during fault event that can cause voltage sags happen. There are many researchers have come out with many method to mitigate this power quality issues such as DVR, STATCOM, SVC and many more. However, this project presents the mitigation technique to improvement power quality problem which were voltage sags, harmonic distortion and low power factor by using Voltage Source Converter (VSC) in distribution system. The VSC injects a current into the system to mitigate the voltage sags. LCL Passive Filter was then added to VSC to improve harmonic distortion and low power factor. The simulations were performed using MATLAB SIMULINK version R2010b. 2018-01 Thesis http://eprints.utm.my/id/eprint/78903/ http://eprints.utm.my/id/eprint/78903/1/NoraminIsmailMFKE2018.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:108128 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 Ismail, Noramin Improvement of voltage SAGS, harmonic distortion and low power factor at distribution system by using voltage source converter (VSC) and active filter
description	For many years, power quality were not give a big issue to the power system, because it cause no effect on most of the loads connected to the distribution system. It happen because only motor and generator based system only operates at that time. When an induction motor is subjected to voltage sag, the motor still operates but with a lower output until the sag ends. It not harm the motor but only effect the performance of the motor. With the increasing use of sophisticated electronics based system, high efficiency variable speed drive, and power electronic controller, power quality has become an important agenda and it will cause increasing concern to utilities and customers. Nowadays, voltage sags is the most common type of power quality disturbance in the distribution system. Even though it happens only in the microseconds, but it can be caused huge impact on the electronic based system. Sometimes, when fault occurs in the electrical network the nearest network connected to the fault network will sense the voltage sags event. Although the electricity utilities and semiconductor or electronic based system companies have invested some substantial amount of investment to improve the reliability of the network but they still cannot control the external and internal factor that can causes the fault, such as lightning strike, third party digging, illegally excavation activity, wrongly operated during maintenance activity or protection relay malfunction and etc. Therefore, the important thing is to come out with the solution to prevent or mitigate the network during fault event that can cause voltage sags happen. There are many researchers have come out with many method to mitigate this power quality issues such as DVR, STATCOM, SVC and many more. However, this project presents the mitigation technique to improvement power quality problem which were voltage sags, harmonic distortion and low power factor by using Voltage Source Converter (VSC) in distribution system. The VSC injects a current into the system to mitigate the voltage sags. LCL Passive Filter was then added to VSC to improve harmonic distortion and low power factor. The simulations were performed using MATLAB SIMULINK version R2010b.
format	Thesis
qualification_level	Master's degree
author	Ismail, Noramin
author_facet	Ismail, Noramin
author_sort	Ismail, Noramin
title	Improvement of voltage SAGS, harmonic distortion and low power factor at distribution system by using voltage source converter (VSC) and active filter
title_short	Improvement of voltage SAGS, harmonic distortion and low power factor at distribution system by using voltage source converter (VSC) and active filter
title_full	Improvement of voltage SAGS, harmonic distortion and low power factor at distribution system by using voltage source converter (VSC) and active filter
title_fullStr	Improvement of voltage SAGS, harmonic distortion and low power factor at distribution system by using voltage source converter (VSC) and active filter
title_full_unstemmed	Improvement of voltage SAGS, harmonic distortion and low power factor at distribution system by using voltage source converter (VSC) and active filter
title_sort	improvement of voltage sags, harmonic distortion and low power factor at distribution system by using voltage source converter (vsc) and active filter
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2018
url	http://eprints.utm.my/id/eprint/78903/1/NoraminIsmailMFKE2018.pdf
_version_	1747818099730546688

Improvement of voltage SAGS, harmonic distortion and low power factor at distribution system by using voltage source converter (VSC) and active filter

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