Study of direct current bus instability driving by photovoltaic source with constant power load

Instability phenomena in Distributed Power System (DPS) usually occur when two or more subsystem combines together. This phenomenon occurs since converter has its internal control function, for example to regulate the converter output voltage. Consequently, the converter tends to draw a constant pow...

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Main Author:	Mohd. Nasir, Mohamad Na'im
Format:	Thesis
Published:	2010
Subjects:	TK Electrical engineering Electronics Nuclear engineering
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spelling	my-utm-ep.269982017-08-16T09:18:27Z Study of direct current bus instability driving by photovoltaic source with constant power load 2010 Mohd. Nasir, Mohamad Na'im TK Electrical engineering. Electronics Nuclear engineering Instability phenomena in Distributed Power System (DPS) usually occur when two or more subsystem combines together. This phenomenon occurs since converter has its internal control function, for example to regulate the converter output voltage. Consequently, the converter tends to draw a constant power which therefore creates negative incremental input impedance within the bandwidth of the converter control which may cause the DC bus instability in a DPS. In this project, a passive damping network has been analysed and designed to overcome the stability problem in a system which consists of a DC source connected to the CPLs via LC filter network. Furthermore, photovoltaic array (PVA) has been modelled as a DC source and extensive study was carried out to investigate its effectiveness in DPS to replace linear DC voltage supply. Passive RC damping network was examined in both DC sources. The system was simulated using MATLAB/Simulink software. The results show that with the help of the passi ve damping, the DC bus voltage more stable when driven by the PVA source compared to linear DC voltage source. 2010 Thesis http://eprints.utm.my/id/eprint/26998/ masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Mohd. Nasir, Mohamad Na'im Study of direct current bus instability driving by photovoltaic source with constant power load
description	Instability phenomena in Distributed Power System (DPS) usually occur when two or more subsystem combines together. This phenomenon occurs since converter has its internal control function, for example to regulate the converter output voltage. Consequently, the converter tends to draw a constant power which therefore creates negative incremental input impedance within the bandwidth of the converter control which may cause the DC bus instability in a DPS. In this project, a passive damping network has been analysed and designed to overcome the stability problem in a system which consists of a DC source connected to the CPLs via LC filter network. Furthermore, photovoltaic array (PVA) has been modelled as a DC source and extensive study was carried out to investigate its effectiveness in DPS to replace linear DC voltage supply. Passive RC damping network was examined in both DC sources. The system was simulated using MATLAB/Simulink software. The results show that with the help of the passi ve damping, the DC bus voltage more stable when driven by the PVA source compared to linear DC voltage source.
format	Thesis
qualification_level	Master's degree
author	Mohd. Nasir, Mohamad Na'im
author_facet	Mohd. Nasir, Mohamad Na'im
author_sort	Mohd. Nasir, Mohamad Na'im
title	Study of direct current bus instability driving by photovoltaic source with constant power load
title_short	Study of direct current bus instability driving by photovoltaic source with constant power load
title_full	Study of direct current bus instability driving by photovoltaic source with constant power load
title_fullStr	Study of direct current bus instability driving by photovoltaic source with constant power load
title_full_unstemmed	Study of direct current bus instability driving by photovoltaic source with constant power load
title_sort	study of direct current bus instability driving by photovoltaic source with constant power load
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2010
_version_	1747815562648485888

Study of direct current bus instability driving by photovoltaic source with constant power load

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