Marx topology dc-dc buck converter for high voltage gain achievement

This study present Marx topology DC-DC buck converter (MBC) with a series connection at the input side and parallel connection at the output side. With these circuit configurations the high voltage gain can be achieved. In Marx topology buck mode, stages capacitor was charged in series and discha...

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Main Author:	Abdirahman Ali, Fadumo
Format:	Thesis
Language:	English English English
Published:	2022
Subjects:	TK3001-3521 Distribution or transmission of electric power
Online Access:	http://eprints.uthm.edu.my/6977/1/24p%20FADUMO%20ABDIRAHMAN%20ALI.pdf http://eprints.uthm.edu.my/6977/2/FADUMO%20ABDIRAHMAN%20ALI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/6977/3/FADUMO%20ABDIRAHMAN%20ALI%20WATERMARK.pdf
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id	my-uthm-ep.6977
record_format	uketd_dc
spelling	my-uthm-ep.69772022-04-24T00:37:34Z Marx topology dc-dc buck converter for high voltage gain achievement 2022-02 Abdirahman Ali, Fadumo TK3001-3521 Distribution or transmission of electric power This study present Marx topology DC-DC buck converter (MBC) with a series connection at the input side and parallel connection at the output side. With these circuit configurations the high voltage gain can be achieved. In Marx topology buck mode, stages capacitor was charged in series and discharge in parallel to achieve the step-down buck characteristic. Due to the number of stages n, the buck ratio can be achieved by changing the duty cycle D, the number of circuit stages n or both. A two- stage MBC with a duty cycle of 19.4% between the input and output voltages were designed and simulated for 400 V and 48 V. Further test with duty cycle of 15.1% where the input and output are 400 V and 36 V, and duty cycle of 23.1% where the input and output are 400 V and 60 V. Simulation of output power of 1 kW, 2.5 kW and 5 kW were conducted to check the relation of the circuit towards the efficiency, output voltage and duty ratio. Simulation of switching frequency at 25 kHz, 50 kHz and 75 kHz to check the relation towards circuit parameters design. Simulation with duty cycles of 15.1%, 19.4% and 23.1% were conducted to check the relationship for the output voltage. The MBC circuit can perform the buck operation by varying the duty cycle and the number of stages for the desired output voltage. Therefore, the design of the proposed converter was confirmed. The maximum efficiency of MBC is 95% was obtained from the simulation result. 2022-02 Thesis http://eprints.uthm.edu.my/6977/ http://eprints.uthm.edu.my/6977/1/24p%20FADUMO%20ABDIRAHMAN%20ALI.pdf text en public http://eprints.uthm.edu.my/6977/2/FADUMO%20ABDIRAHMAN%20ALI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/6977/3/FADUMO%20ABDIRAHMAN%20ALI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Malaysia Fakulti Kejuruteraan Elektrik dan Elektronik
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK3001-3521 Distribution or transmission of electric power
spellingShingle	TK3001-3521 Distribution or transmission of electric power Abdirahman Ali, Fadumo Marx topology dc-dc buck converter for high voltage gain achievement
description	This study present Marx topology DC-DC buck converter (MBC) with a series connection at the input side and parallel connection at the output side. With these circuit configurations the high voltage gain can be achieved. In Marx topology buck mode, stages capacitor was charged in series and discharge in parallel to achieve the step-down buck characteristic. Due to the number of stages n, the buck ratio can be achieved by changing the duty cycle D, the number of circuit stages n or both. A two- stage MBC with a duty cycle of 19.4% between the input and output voltages were designed and simulated for 400 V and 48 V. Further test with duty cycle of 15.1% where the input and output are 400 V and 36 V, and duty cycle of 23.1% where the input and output are 400 V and 60 V. Simulation of output power of 1 kW, 2.5 kW and 5 kW were conducted to check the relation of the circuit towards the efficiency, output voltage and duty ratio. Simulation of switching frequency at 25 kHz, 50 kHz and 75 kHz to check the relation towards circuit parameters design. Simulation with duty cycles of 15.1%, 19.4% and 23.1% were conducted to check the relationship for the output voltage. The MBC circuit can perform the buck operation by varying the duty cycle and the number of stages for the desired output voltage. Therefore, the design of the proposed converter was confirmed. The maximum efficiency of MBC is 95% was obtained from the simulation result.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Abdirahman Ali, Fadumo
author_facet	Abdirahman Ali, Fadumo
author_sort	Abdirahman Ali, Fadumo
title	Marx topology dc-dc buck converter for high voltage gain achievement
title_short	Marx topology dc-dc buck converter for high voltage gain achievement
title_full	Marx topology dc-dc buck converter for high voltage gain achievement
title_fullStr	Marx topology dc-dc buck converter for high voltage gain achievement
title_full_unstemmed	Marx topology dc-dc buck converter for high voltage gain achievement
title_sort	marx topology dc-dc buck converter for high voltage gain achievement
granting_institution	Universiti Tun Hussein Malaysia
granting_department	Fakulti Kejuruteraan Elektrik dan Elektronik
publishDate	2022
url	http://eprints.uthm.edu.my/6977/1/24p%20FADUMO%20ABDIRAHMAN%20ALI.pdf http://eprints.uthm.edu.my/6977/2/FADUMO%20ABDIRAHMAN%20ALI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/6977/3/FADUMO%20ABDIRAHMAN%20ALI%20WATERMARK.pdf
_version_	1747831101629399040

Marx topology dc-dc buck converter for high voltage gain achievement

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