Harmonic modeling in power distribution system using time series simulation

Harmonic distortion is one of the major power quality concerns. The non-linearity of customer loads caused the occurrence of harmonic distortion that leads to degradation of power system components. Therefore, harmonic studies have become an important part in power system modeling, simulation and an...

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Main Author:	Che Ku Amran, Che Ku Farhana
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/48749/25/CheKuFarhanaMFKE2014.pdf
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spelling	my-utm-ep.487492020-06-21T04:00:41Z Harmonic modeling in power distribution system using time series simulation 2014-07 Che Ku Amran, Che Ku Farhana TK Electrical engineering. Electronics Nuclear engineering Harmonic distortion is one of the major power quality concerns. The non-linearity of customer loads caused the occurrence of harmonic distortion that leads to degradation of power system components. Therefore, harmonic studies have become an important part in power system modeling, simulation and analysis. The needs for harmonic modeling and simulation are to determine the existence of dangerous resonant conditions and to verify that the distortion level complies with the standard harmonic limits. This research is to model time-series harmonic analysis. An integration of Open Distribution System Simulator (OpenDSS) with Microsoft Visual C++ and Microsoft Excel into an application for time-series simulation control is presented. Harmonic power flow analysis is performed by using OpenDSS interfaced with C++ to simulate the time-series simulation. The impact of practical harmonic loads measured from commercial, industrial and residential sectors on different distribution network systems are investigated. Two test case studies, with and without harmonic loads are modeled to show the usefulness of time-series simulation. IEEE test feeder and practical power distribution system are used as the test system for both case studies. The impact of harmonics on the test systems is studied by using the measured harmonic data obtained from logging sites. The simulation results were compared with the standard harmonic limits to ensure the compliance of distortion levels. Simulation results obtained show that total harmonic distortion has a significant effect on the losses of the system, mainly on the lines, cables and transformer losses. The losses of the system with harmonics for both types of the test system showed an increment compared to the system without harmonics. Hence, this proves that when harmonics exist within the system, losses increase. Based on the simulation results acquired using the developed application, the system losses and the level of harmonic distortions in the electric power distribution network are easily obtained for each interval of time-series. The developed application saves computational time as well as providing a method that is cost effective. 2014-07 Thesis http://eprints.utm.my/id/eprint/48749/ http://eprints.utm.my/id/eprint/48749/25/CheKuFarhanaMFKE2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:90813 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 Che Ku Amran, Che Ku Farhana Harmonic modeling in power distribution system using time series simulation
description	Harmonic distortion is one of the major power quality concerns. The non-linearity of customer loads caused the occurrence of harmonic distortion that leads to degradation of power system components. Therefore, harmonic studies have become an important part in power system modeling, simulation and analysis. The needs for harmonic modeling and simulation are to determine the existence of dangerous resonant conditions and to verify that the distortion level complies with the standard harmonic limits. This research is to model time-series harmonic analysis. An integration of Open Distribution System Simulator (OpenDSS) with Microsoft Visual C++ and Microsoft Excel into an application for time-series simulation control is presented. Harmonic power flow analysis is performed by using OpenDSS interfaced with C++ to simulate the time-series simulation. The impact of practical harmonic loads measured from commercial, industrial and residential sectors on different distribution network systems are investigated. Two test case studies, with and without harmonic loads are modeled to show the usefulness of time-series simulation. IEEE test feeder and practical power distribution system are used as the test system for both case studies. The impact of harmonics on the test systems is studied by using the measured harmonic data obtained from logging sites. The simulation results were compared with the standard harmonic limits to ensure the compliance of distortion levels. Simulation results obtained show that total harmonic distortion has a significant effect on the losses of the system, mainly on the lines, cables and transformer losses. The losses of the system with harmonics for both types of the test system showed an increment compared to the system without harmonics. Hence, this proves that when harmonics exist within the system, losses increase. Based on the simulation results acquired using the developed application, the system losses and the level of harmonic distortions in the electric power distribution network are easily obtained for each interval of time-series. The developed application saves computational time as well as providing a method that is cost effective.
format	Thesis
qualification_level	Master's degree
author	Che Ku Amran, Che Ku Farhana
author_facet	Che Ku Amran, Che Ku Farhana
author_sort	Che Ku Amran, Che Ku Farhana
title	Harmonic modeling in power distribution system using time series simulation
title_short	Harmonic modeling in power distribution system using time series simulation
title_full	Harmonic modeling in power distribution system using time series simulation
title_fullStr	Harmonic modeling in power distribution system using time series simulation
title_full_unstemmed	Harmonic modeling in power distribution system using time series simulation
title_sort	harmonic modeling in power distribution system using time series simulation
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2014
url	http://eprints.utm.my/id/eprint/48749/25/CheKuFarhanaMFKE2014.pdf
_version_	1747817466435731456

Harmonic modeling in power distribution system using time series simulation

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