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Battery Management System, Balancing Modularization based on Single Switched Capacitor and Bi-directional DC/DC Converter with the Auxiliary Battery Vrije Universiteit Brussel

Mohamed Ali Abdelfattah Hamoda Daowd, Antoine Mailier, Noshin Omar, Philippe Lataire, Peter Van Den Bossche, Joeri Van Mierlo
Lithium based batteries are considered as most advanced batteries technology, which can be designed for high energy or high power storage systems [1]. However, the battery cells are never fully identical due to the fabrication process, surrounding environment factors and differences between the cells tend to grow if no measures are taken. In order to have a high performance battery system, the battery cells should be continuously balanced for ...

Battery management system-balancing modularization based on a single switched capacitor and bi-directional DC/DC converter with the auxiliary battery Vrije Universiteit Brussel

Mohamed Ali Abdelfattah Hamoda Daowd, Mailier Antoine, Noshin Omar, Philippe Lataire, Peter Van Den Bossche, Joeri Van Mierlo

Lithium-based batteries are considered as the most advanced batteries technology, which can be designed for high energy or high power storage systems. However, the battery cells are never fully identical due to the fabrication process, surrounding environment factors and differences between the cells tend to grow if no measures are taken. In order to have a high performance battery system, the battery cells should be continuously balanced for ...

Life cycle assessment of battery electric vehicles: Implications of future electricity mix and different battery end-of-life management Vrije Universiteit Brussel

Michael Samsu Koroma, Daniele Mesquita Bordalo Da Costa, Maarten Messagie, Maeva Philippot, Md Sazzad Hosen, Thierry Coosemans, Giuseppe Cardellini
The environmental performance of battery electric vehicles (BEVs) is influenced by their battery size and charging electricity source. Therefore, assessing their environmental performance should consider changes in the electricity sector and refurbishment of their batteries. This study conducts a scenario-based Life Cycle Assessment (LCA) of three different scenarios combining four key parameters: future changes in the charging electricity mix, ...

A battery equalization technique based on Cuk converter balancing for lithium ion batteries Universiteit Gent

Ali Farzan Moghaddam, Alex Van den Bossche
In this paper, an active cell equalization technique based on cuk converter balancing for lithium ion (Li-ion) batteries is investigated. The circuit equalizes eight cells, which are connected in series in a battery pack. In Electrical Vehicles (EV), batteries act an important role, due to the fact that the most expense in EV is the cost of the batteries. In a battery pack, voltage differences always exist due to charging and discharging ...

An Online Framework for State of Charge Determination of Battery Systems using Combined System Identification Approach Vrije Universiteit Brussel

MOHAMMAD KHAN, Joeri Van Mierlo, Grietus Mulder, Filip Leemans
State of Charge (SoC) of a battery is a measure of the amount of electrical energy stored in the battery. The prerequisite for state of charge determination in Electrical Vehicle (EV) and stationary batteries is more challenging as the battery can be composed of hundreds of cells while load current changes dramatically inside the cells and required elapsed time for SoC determination should be as short as possible for battery pack management to ...

A Three-dimensional thermal model for a commercial lithium-ion capacitor battery pack with non-uniform temperature distribution Vrije Universiteit Brussel

Mahdi Soltani, Joris Jaguemont, Joeri Van Mierlo, Peter Van Den Bossche, Noshin Omar
Electrical energy storage is widely used not
only in the mobile applications but also in stationary
applications as like uninterruptable power supply. An
energy storage system with the high energy density and
high-power capability is very important for some
specific applications like electric vehicles (EV). Lithiumion-
batteries are well known for their high energy
density while super-capacitors have high ...

Integration of EVs and RESs into Power Systems: From Battery Pack Design Phase to Optimal Power Flow Analysis Vrije Universiteit Brussel

Omid Rahbari
Energy Storage Systems (ESSs) are recognized as key technologies for both electric power systems and electric vehicle (EV) applications. Indeed, ESSs provide great opportunities for the former application to regulate frequency deviation, voltage deviation, and to respond to the demand, namely ancillary services. In addition, ESSs are considered a distinct possibility for de-carbonization of urban areas and greening of the transportation sector, ...

Forward converter current fed equalizer for lithium based batteries in ultralight electrical vehicles Universiteit Gent

Ali Farzan Moghaddam, Alex Van den Bossche
In this paper, the concept of a forward balancing technique fed by a buck converter for lithium-based batteries in Electrical Vehicle (EV) applications is investigated. The proposed active topology equalizes eight cells in a series in a battery pack, by using a forward converter for each battery pack and the whole battery packs, using a buck converter. The battery bank consists of four battery packs, which are in series. Therefore, the proposed ...

Real-Life Mission Profile Oriented Lifetime Estimation of a SiC Interleaved Bidirectional HV DC/DC Converter for Electric Vehicle Drivetrains Vrije Universiteit Brussel

Sajib Chakraborty, Mohammed Mahedi Hasan, McGahan Paul, Dai-Duong Tran, Thomas Geury, Pooya Davari, Aalborg Blaabjerg, Mohamed El Baghdadi, Omar Hegazy

The rapid growth of Battery Electric Vehicles (BEVs) in the automotive field has led to a need for improving their drivetrain performance, mainly focusing on the extension of the battery operating range. However, the majority of performed technical assessments only consider battery SoC and depth of discharge while neglecting the effects on lifetime and failure probability of power electronic components, more specifically the emerging ...

A Cuk converter cell balancing technique by using coupled inductors for lithium-based batteries Universiteit Gent

Ali Farzan Moghaddam, Alex Van den Bossche
In this paper, a cuk converter balancing method by using a coupled inductor for lithium based batteries is investigated. The proposed circuit is an active balancing circuit that will equalize eight battery cells in a series. In electrical vehicles (EV), a battery management system (BMS) is a vital task to achieve the best performance of the batteries and longer lifetime. The problem of voltage difference in a battery pack is an important issue ...