OPTIMAL NUMBER AND PLACEMENT OF POWER QUALITY MONITORS FOR MONITORING VOLTAGE SAG IN POWER SYSTEM NETWORKS

The occurrence of voltage sags often interrupt the operating process of modern equipment, especially in manufacturing and semiconductor plants. To avoid high production loss in industries, power quality monitoring is essential. Monitoring the whole power system will provide important data to a utili...

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Main Author:	Salim, Fatimah
Format:	Thesis
Language:	English
Published:	2016
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/77944/1/FatimahSalimPFKE2016.pdf
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id	my-utm-ep.77944
record_format	uketd_dc
spelling	my-utm-ep.779442018-07-23T06:05:15Z OPTIMAL NUMBER AND PLACEMENT OF POWER QUALITY MONITORS FOR MONITORING VOLTAGE SAG IN POWER SYSTEM NETWORKS 2016-04 Salim, Fatimah TK Electrical engineering. Electronics Nuclear engineering The occurrence of voltage sags often interrupt the operating process of modern equipment, especially in manufacturing and semiconductor plants. To avoid high production loss in industries, power quality monitoring is essential. Monitoring the whole power system will provide important data to a utility company. As most power system networks are large, allocating a Power Quality (PQ) monitor at every bus in the system is costly. Therefore, the optimal number of PQ monitors should be determined. In this thesis, an optimum number of PQ monitor locations is identified through a searching procedure developed based on the method of fault position combined with certain network characteristics such as the number of connecting lines and the size of the coverage area, or sag vulnerability area. The proposed searching procedure will be enhanced with the usage of monitor redundancy level. To allow redundancy in monitoring sags, a minimum of three recordings are required. This is to allow functioning of two recordings when a monitor fails. The monitor redundancy criterion is used to ensure that every fault in the power system can be observed and validated with sufficient redundancy to ensure the monitoring system is not affected when one of the monitors fails to function. The monitor searching procedure is developed by using the MATLAB software. The monitor searching procedure is simulated to three different IEEE standard test systems: IEEE 30, 118 and 300 bus systems. Simulation results demonstrate that it is possible to monitor the occurrence of a voltage sag in the entire power system with an optimum number of power quality monitors. The monitor searching procedure is then validated through the implementation of monitoring the voltage sag event in the Peninsular Malaysia’s utility network project. The number of monitors used under this project has been able to record sag events with optimum redundancy and the introduction of remote monitoring has enhanced the monitor searching procedure as the monitors used are able to upload data automatically to the database. 2016-04 Thesis http://eprints.utm.my/id/eprint/77944/ http://eprints.utm.my/id/eprint/77944/1/FatimahSalimPFKE2016.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:97151 phd doctoral 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 Salim, Fatimah OPTIMAL NUMBER AND PLACEMENT OF POWER QUALITY MONITORS FOR MONITORING VOLTAGE SAG IN POWER SYSTEM NETWORKS
description	The occurrence of voltage sags often interrupt the operating process of modern equipment, especially in manufacturing and semiconductor plants. To avoid high production loss in industries, power quality monitoring is essential. Monitoring the whole power system will provide important data to a utility company. As most power system networks are large, allocating a Power Quality (PQ) monitor at every bus in the system is costly. Therefore, the optimal number of PQ monitors should be determined. In this thesis, an optimum number of PQ monitor locations is identified through a searching procedure developed based on the method of fault position combined with certain network characteristics such as the number of connecting lines and the size of the coverage area, or sag vulnerability area. The proposed searching procedure will be enhanced with the usage of monitor redundancy level. To allow redundancy in monitoring sags, a minimum of three recordings are required. This is to allow functioning of two recordings when a monitor fails. The monitor redundancy criterion is used to ensure that every fault in the power system can be observed and validated with sufficient redundancy to ensure the monitoring system is not affected when one of the monitors fails to function. The monitor searching procedure is developed by using the MATLAB software. The monitor searching procedure is simulated to three different IEEE standard test systems: IEEE 30, 118 and 300 bus systems. Simulation results demonstrate that it is possible to monitor the occurrence of a voltage sag in the entire power system with an optimum number of power quality monitors. The monitor searching procedure is then validated through the implementation of monitoring the voltage sag event in the Peninsular Malaysia’s utility network project. The number of monitors used under this project has been able to record sag events with optimum redundancy and the introduction of remote monitoring has enhanced the monitor searching procedure as the monitors used are able to upload data automatically to the database.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Salim, Fatimah
author_facet	Salim, Fatimah
author_sort	Salim, Fatimah
title	OPTIMAL NUMBER AND PLACEMENT OF POWER QUALITY MONITORS FOR MONITORING VOLTAGE SAG IN POWER SYSTEM NETWORKS
title_short	OPTIMAL NUMBER AND PLACEMENT OF POWER QUALITY MONITORS FOR MONITORING VOLTAGE SAG IN POWER SYSTEM NETWORKS
title_full	OPTIMAL NUMBER AND PLACEMENT OF POWER QUALITY MONITORS FOR MONITORING VOLTAGE SAG IN POWER SYSTEM NETWORKS
title_fullStr	OPTIMAL NUMBER AND PLACEMENT OF POWER QUALITY MONITORS FOR MONITORING VOLTAGE SAG IN POWER SYSTEM NETWORKS
title_full_unstemmed	OPTIMAL NUMBER AND PLACEMENT OF POWER QUALITY MONITORS FOR MONITORING VOLTAGE SAG IN POWER SYSTEM NETWORKS
title_sort	optimal number and placement of power quality monitors for monitoring voltage sag in power system networks
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2016
url	http://eprints.utm.my/id/eprint/77944/1/FatimahSalimPFKE2016.pdf
_version_	1747817869122469888

OPTIMAL NUMBER AND PLACEMENT OF POWER QUALITY MONITORS FOR MONITORING VOLTAGE SAG IN POWER SYSTEM NETWORKS

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