Novel Single Phase Dc-Ac Inverter Topology With Enhanced Power Quality

Inverters are widely employed in many application such as photovoltaic (PV), uninterruptable power supply (UPS) etc for the conversion of direct current (DC) power to alternating current (AC) power. The key challenges in design and implementation of inverters are the realization of higher efficiency...

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Main Author:	Abdullah, Muhammad Faizal
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TK1-9971 Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.usm.my/46065/1/Muhammad%20Faizal%20Bin%20Abdullah.pdf
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id	my-usm-ep.46065
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spelling	my-usm-ep.460652020-02-03T02:48:21Z Novel Single Phase Dc-Ac Inverter Topology With Enhanced Power Quality 2014-02 Abdullah, Muhammad Faizal TK1-9971 Electrical engineering. Electronics. Nuclear engineering Inverters are widely employed in many application such as photovoltaic (PV), uninterruptable power supply (UPS) etc for the conversion of direct current (DC) power to alternating current (AC) power. The key challenges in design and implementation of inverters are the realization of higher efficiency and good quality output power. To achieve these, this thesis presents a novel single phase DC-AC inverter topology with enhanced power quality. In this topology, a switch is connected at the lower arm of the full-bridge switches to control the output voltage across the full-bridge inverter. The switch at the lower arm of the full-bridge controls the output of full-bridge inverter by increasing or reducing the voltage level at the lower arm of the bridge. This switch of lower arm is controlled by a high frequency sinusoidal pulse width modulation (SPWM) switching signal. While the power switches of full-bridge inverter operate with square wave switching signal at a frequency of 50 Hz. The proposed topology produces a clean sinusoidal output waveform with low distortion and with minimum switching losses, thus yielding high quality output at high efficiency. Next, a random switching hybrid pulse width modulation (HPWM) inverter is developed in order to give a comparison between the proposed inverter and the random switching HPWM inverter. Both computer simulation and experiment were carried out to verify the performance of proposed topology. From the presented results, it is shown that proposed topology has superior performance compared to its conventional counterpart. 2014-02 Thesis http://eprints.usm.my/46065/ http://eprints.usm.my/46065/1/Muhammad%20Faizal%20Bin%20Abdullah.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Elektrik & Elektronik
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TK1-9971 Electrical engineering Electronics Nuclear engineering
spellingShingle	TK1-9971 Electrical engineering Electronics Nuclear engineering Abdullah, Muhammad Faizal Novel Single Phase Dc-Ac Inverter Topology With Enhanced Power Quality
description	Inverters are widely employed in many application such as photovoltaic (PV), uninterruptable power supply (UPS) etc for the conversion of direct current (DC) power to alternating current (AC) power. The key challenges in design and implementation of inverters are the realization of higher efficiency and good quality output power. To achieve these, this thesis presents a novel single phase DC-AC inverter topology with enhanced power quality. In this topology, a switch is connected at the lower arm of the full-bridge switches to control the output voltage across the full-bridge inverter. The switch at the lower arm of the full-bridge controls the output of full-bridge inverter by increasing or reducing the voltage level at the lower arm of the bridge. This switch of lower arm is controlled by a high frequency sinusoidal pulse width modulation (SPWM) switching signal. While the power switches of full-bridge inverter operate with square wave switching signal at a frequency of 50 Hz. The proposed topology produces a clean sinusoidal output waveform with low distortion and with minimum switching losses, thus yielding high quality output at high efficiency. Next, a random switching hybrid pulse width modulation (HPWM) inverter is developed in order to give a comparison between the proposed inverter and the random switching HPWM inverter. Both computer simulation and experiment were carried out to verify the performance of proposed topology. From the presented results, it is shown that proposed topology has superior performance compared to its conventional counterpart.
format	Thesis
qualification_level	Master's degree
author	Abdullah, Muhammad Faizal
author_facet	Abdullah, Muhammad Faizal
author_sort	Abdullah, Muhammad Faizal
title	Novel Single Phase Dc-Ac Inverter Topology With Enhanced Power Quality
title_short	Novel Single Phase Dc-Ac Inverter Topology With Enhanced Power Quality
title_full	Novel Single Phase Dc-Ac Inverter Topology With Enhanced Power Quality
title_fullStr	Novel Single Phase Dc-Ac Inverter Topology With Enhanced Power Quality
title_full_unstemmed	Novel Single Phase Dc-Ac Inverter Topology With Enhanced Power Quality
title_sort	novel single phase dc-ac inverter topology with enhanced power quality
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Elektrik & Elektronik
publishDate	2014
url	http://eprints.usm.my/46065/1/Muhammad%20Faizal%20Bin%20Abdullah.pdf
_version_	1747821603357458432

Novel Single Phase Dc-Ac Inverter Topology With Enhanced Power Quality

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