New method for reduction of harmonic of three phase rectifier using harmonic injection method

The three-phase rectifier is becoming more common in power systems. This rectifier produces a non-linear waveform of the input current into a power system. This causes a number of problems for the power system control and for other electrical systems which require such rectifiers. In fact, the harmo...

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Main Author:	Mtair, Ali Saadon
Format:	Thesis
Language:	English
Published:	2011
Subjects:	Rectifiers Laser
Online Access:	http://psasir.upm.edu.my/id/eprint/41817/1/FK%202011%20150R.pdf
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id	my-upm-ir.41817
record_format	uketd_dc
spelling	my-upm-ir.418172016-03-03T01:12:59Z New method for reduction of harmonic of three phase rectifier using harmonic injection method 2011-10 Mtair, Ali Saadon The three-phase rectifier is becoming more common in power systems. This rectifier produces a non-linear waveform of the input current into a power system. This causes a number of problems for the power system control and for other electrical systems which require such rectifiers. In fact, the harmonic components generated by such power electronic devices have severe effects on several aspects of power networks especially on distribution. In addition, the high value of Total Harmonic Distortion (THD) causes undesirable distortion on the sinusoidal shape of the wave for the input current. This thesis proposes a new circuit for three-phase rectifier using harmonic current injection method. The proposed circuit was simulated using MATLAB software. A prototype of the proposed circuit has been developed. The proposed circuit uses active harmonic current injection method with a capacitor bank, which is simple compared to conventional circuits using harmonic current injection method with star-delta transformer as the current injection device. The prototype has been examined with feedback injection harmonic current to show the validity of the system. The comparison between simulation results and experimental results from the prototype shows minor difference. It has been observed that conventional three-phase rectifiers produce high THD for input currents, i.e., around 7.5%, while the proposed circuit has reduced the THD drawn from the input current supply down to 5.5%. This makes the waveform of the input current close to sinusoidal wave. Rectifiers Laser 2011-10 Thesis http://psasir.upm.edu.my/id/eprint/41817/ http://psasir.upm.edu.my/id/eprint/41817/1/FK%202011%20150R.pdf application/pdf en public masters Universiti Putra Malaysia Rectifiers Laser
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Rectifiers Laser
spellingShingle	Rectifiers Laser Mtair, Ali Saadon New method for reduction of harmonic of three phase rectifier using harmonic injection method
description	The three-phase rectifier is becoming more common in power systems. This rectifier produces a non-linear waveform of the input current into a power system. This causes a number of problems for the power system control and for other electrical systems which require such rectifiers. In fact, the harmonic components generated by such power electronic devices have severe effects on several aspects of power networks especially on distribution. In addition, the high value of Total Harmonic Distortion (THD) causes undesirable distortion on the sinusoidal shape of the wave for the input current. This thesis proposes a new circuit for three-phase rectifier using harmonic current injection method. The proposed circuit was simulated using MATLAB software. A prototype of the proposed circuit has been developed. The proposed circuit uses active harmonic current injection method with a capacitor bank, which is simple compared to conventional circuits using harmonic current injection method with star-delta transformer as the current injection device. The prototype has been examined with feedback injection harmonic current to show the validity of the system. The comparison between simulation results and experimental results from the prototype shows minor difference. It has been observed that conventional three-phase rectifiers produce high THD for input currents, i.e., around 7.5%, while the proposed circuit has reduced the THD drawn from the input current supply down to 5.5%. This makes the waveform of the input current close to sinusoidal wave.
format	Thesis
qualification_level	Master's degree
author	Mtair, Ali Saadon
author_facet	Mtair, Ali Saadon
author_sort	Mtair, Ali Saadon
title	New method for reduction of harmonic of three phase rectifier using harmonic injection method
title_short	New method for reduction of harmonic of three phase rectifier using harmonic injection method
title_full	New method for reduction of harmonic of three phase rectifier using harmonic injection method
title_fullStr	New method for reduction of harmonic of three phase rectifier using harmonic injection method
title_full_unstemmed	New method for reduction of harmonic of three phase rectifier using harmonic injection method
title_sort	new method for reduction of harmonic of three phase rectifier using harmonic injection method
granting_institution	Universiti Putra Malaysia
publishDate	2011
url	http://psasir.upm.edu.my/id/eprint/41817/1/FK%202011%20150R.pdf
_version_	1747811890282627072

New method for reduction of harmonic of three phase rectifier using harmonic injection method

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