Lithium-ion cell balancing using buck-boost converter

The lithium-ion battery has gained considerable attention in Electric Vehicle sectors compared to the conventional lead-acid battery. It became commercially popular and used due to its salient characteristics such as high terminal voltage, energy density and power density of a single cell. However,...

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Main Author: Hashim, Muhammad Hazwan
Format: Thesis
Language:English
Published: 2021
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Online Access:http://eprints.utm.my/id/eprint/99493/1/MuhammadHazwanHashimMKE2021.pdf
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spelling my-utm-ep.994932023-02-27T07:46:26Z Lithium-ion cell balancing using buck-boost converter 2021 Hashim, Muhammad Hazwan TK Electrical engineering. Electronics Nuclear engineering The lithium-ion battery has gained considerable attention in Electric Vehicle sectors compared to the conventional lead-acid battery. It became commercially popular and used due to its salient characteristics such as high terminal voltage, energy density and power density of a single cell. However, if there is no proper power regulation during the process of both charging and discharging, the life span of the batteries will significantly decrease and leads to undesirable results such as fire or explosion at times which become a major drawback of lithium-ion (Li-ion) batteries. Proper power regulation is essentials and battery management system (BMS) are employed to circumvent these problems. SOC estimation, cell balancing, and thermal management are the common subsystems of battery management system (BMS). These subsystems are required to perform in real time and under conditions of rapid charging and discharged. Cell balancing is very crucial subsystem of the BMS which will efficiently prolong the battery life span. Thus, not only does the cell balancing method cover the task of protecting the cells, it also involves the task of equalizing charges between the cells. In electronic devices, the most common cell protection mechanism used is interruption of the charging and discharging process of the battery in order to prevent the battery from reaching its maximum and minimum permissible voltage. The charge imbalance among batteries occurs in the form of unequal voltages along the series connected batteries. The two major categories of cell balancing methodologies are active methods and passive methods. In this project, both categories of cell balancing will be studied extensively, and an efficient and suitable converter based active method is proposed and simulated using MATLAB Simulink. 2021 Thesis http://eprints.utm.my/id/eprint/99493/ http://eprints.utm.my/id/eprint/99493/1/MuhammadHazwanHashimMKE2021.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:149805 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
Hashim, Muhammad Hazwan
Lithium-ion cell balancing using buck-boost converter
description The lithium-ion battery has gained considerable attention in Electric Vehicle sectors compared to the conventional lead-acid battery. It became commercially popular and used due to its salient characteristics such as high terminal voltage, energy density and power density of a single cell. However, if there is no proper power regulation during the process of both charging and discharging, the life span of the batteries will significantly decrease and leads to undesirable results such as fire or explosion at times which become a major drawback of lithium-ion (Li-ion) batteries. Proper power regulation is essentials and battery management system (BMS) are employed to circumvent these problems. SOC estimation, cell balancing, and thermal management are the common subsystems of battery management system (BMS). These subsystems are required to perform in real time and under conditions of rapid charging and discharged. Cell balancing is very crucial subsystem of the BMS which will efficiently prolong the battery life span. Thus, not only does the cell balancing method cover the task of protecting the cells, it also involves the task of equalizing charges between the cells. In electronic devices, the most common cell protection mechanism used is interruption of the charging and discharging process of the battery in order to prevent the battery from reaching its maximum and minimum permissible voltage. The charge imbalance among batteries occurs in the form of unequal voltages along the series connected batteries. The two major categories of cell balancing methodologies are active methods and passive methods. In this project, both categories of cell balancing will be studied extensively, and an efficient and suitable converter based active method is proposed and simulated using MATLAB Simulink.
format Thesis
qualification_level Master's degree
author Hashim, Muhammad Hazwan
author_facet Hashim, Muhammad Hazwan
author_sort Hashim, Muhammad Hazwan
title Lithium-ion cell balancing using buck-boost converter
title_short Lithium-ion cell balancing using buck-boost converter
title_full Lithium-ion cell balancing using buck-boost converter
title_fullStr Lithium-ion cell balancing using buck-boost converter
title_full_unstemmed Lithium-ion cell balancing using buck-boost converter
title_sort lithium-ion cell balancing using buck-boost converter
granting_institution Universiti Teknologi Malaysia
granting_department Faculty of Engineering - School of Electrical Engineering
publishDate 2021
url http://eprints.utm.my/id/eprint/99493/1/MuhammadHazwanHashimMKE2021.pdf
_version_ 1776100604355018752