Design and simulation of an off-board dc fast charging station for electric vehicle battery

Conventional fossil fuel-driven vehicles have caused acute environmental pollution. This demands the obligation of developing automotive industries that manufacture vehicles with lower carbon footprint impact on the environment. In the light of this need, electric vehicles (EVs) appear to be the bes...

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Main Author:	Tasnim, Zarin
Format:	Thesis
Language:	English
Published:	2021
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/99509/1/ZarinTasnimMKE2021.pdf
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spelling	my-utm-ep.995092023-02-27T08:03:54Z Design and simulation of an off-board dc fast charging station for electric vehicle battery 2021 Tasnim, Zarin TK Electrical engineering. Electronics Nuclear engineering Conventional fossil fuel-driven vehicles have caused acute environmental pollution. This demands the obligation of developing automotive industries that manufacture vehicles with lower carbon footprint impact on the environment. In the light of this need, electric vehicles (EVs) appear to be the best-suited alternatives to the conventional internal combustion (IC) engine. Despite having environmental benefit, electric vehicles charging creates a negative impact on the power grid. In this project, the unidirectional off-board level-3 EV charger was designed and simulated in Matlab/Simulink. This off-board charger has been divided into two parts. The first part is AC-DC converter where this part is controlled using voltage control approach to ensure standard grid voltage can be smoothly maintained, and to maintain the DC-link voltage at the constant level. The second part comprises the DC-DC converter, which functioning to ensure the battery can be charged within a specified limit using a constant current/constant voltage approach. From the executed simulation, it can be concluded that the proposed off-board EV charging station for 4 EVs units has been successfully designed and developed. As outcomes, the AC grid voltage has been successfully maintained its smooth sinusoidal waveforms even at full-load conditions. So does with the AC grid current and voltage where the total harmonic distortion (THD) level for both signals is within the permissible limit under the IEEE Standard 519-2014 requirements: under 8% for the bus voltage and under 5% for the current. When the number of EV unit charged is increases up to 4 units, current total harmonic distortion also increases. However, the AC sinusoidal grid voltage can be still smoothly maintained. The DC-link voltage has been also successfully maintained at the 800V constant level. For the battery safety condition, charging can be executed as required without overheating the battery. 2021 Thesis http://eprints.utm.my/id/eprint/99509/ http://eprints.utm.my/id/eprint/99509/1/ZarinTasnimMKE2021.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:149879 masters Universiti Teknologi Malaysia Faculty of Engineering - School 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 Tasnim, Zarin Design and simulation of an off-board dc fast charging station for electric vehicle battery
description	Conventional fossil fuel-driven vehicles have caused acute environmental pollution. This demands the obligation of developing automotive industries that manufacture vehicles with lower carbon footprint impact on the environment. In the light of this need, electric vehicles (EVs) appear to be the best-suited alternatives to the conventional internal combustion (IC) engine. Despite having environmental benefit, electric vehicles charging creates a negative impact on the power grid. In this project, the unidirectional off-board level-3 EV charger was designed and simulated in Matlab/Simulink. This off-board charger has been divided into two parts. The first part is AC-DC converter where this part is controlled using voltage control approach to ensure standard grid voltage can be smoothly maintained, and to maintain the DC-link voltage at the constant level. The second part comprises the DC-DC converter, which functioning to ensure the battery can be charged within a specified limit using a constant current/constant voltage approach. From the executed simulation, it can be concluded that the proposed off-board EV charging station for 4 EVs units has been successfully designed and developed. As outcomes, the AC grid voltage has been successfully maintained its smooth sinusoidal waveforms even at full-load conditions. So does with the AC grid current and voltage where the total harmonic distortion (THD) level for both signals is within the permissible limit under the IEEE Standard 519-2014 requirements: under 8% for the bus voltage and under 5% for the current. When the number of EV unit charged is increases up to 4 units, current total harmonic distortion also increases. However, the AC sinusoidal grid voltage can be still smoothly maintained. The DC-link voltage has been also successfully maintained at the 800V constant level. For the battery safety condition, charging can be executed as required without overheating the battery.
format	Thesis
qualification_level	Master's degree
author	Tasnim, Zarin
author_facet	Tasnim, Zarin
author_sort	Tasnim, Zarin
title	Design and simulation of an off-board dc fast charging station for electric vehicle battery
title_short	Design and simulation of an off-board dc fast charging station for electric vehicle battery
title_full	Design and simulation of an off-board dc fast charging station for electric vehicle battery
title_fullStr	Design and simulation of an off-board dc fast charging station for electric vehicle battery
title_full_unstemmed	Design and simulation of an off-board dc fast charging station for electric vehicle battery
title_sort	design and simulation of an off-board dc fast charging station for electric vehicle battery
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Engineering - School of Electrical Engineering
publishDate	2021
url	http://eprints.utm.my/id/eprint/99509/1/ZarinTasnimMKE2021.pdf
_version_	1776100608176029696

Design and simulation of an off-board dc fast charging station for electric vehicle battery

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