Battery Management System—Balancing Modularization Based on a Single Switched Capacitor and Bi-Directional DC/DC Converter with the Auxiliary Battery

Mohamed Daowd, Mailier Antoine, Noshin Omar, Philippe Lataire, Peter Van Den Bossche and Joeri Van Mierlo
Additional contact information
Mohamed Daowd: Department of Electrical Engineering and Energy Technology, Vrije Universiteit Brussel, Pleinlaan 2, Brussel 1050, Belgium
Mailier Antoine: Department of Electrical Engineering and Energy Technology, Vrije Universiteit Brussel, Pleinlaan 2, Brussel 1050, Belgium
Noshin Omar: Department of Electrical Engineering and Energy Technology, Vrije Universiteit Brussel, Pleinlaan 2, Brussel 1050, Belgium
Philippe Lataire: Department of Electrical Engineering and Energy Technology, Vrije Universiteit Brussel, Pleinlaan 2, Brussel 1050, Belgium
Peter Van Den Bossche: Department of Electrical Engineering and Energy Technology, Vrije Universiteit Brussel, Pleinlaan 2, Brussel 1050, Belgium
Joeri Van Mierlo: Department of Electrical Engineering and Energy Technology, Vrije Universiteit Brussel, Pleinlaan 2, Brussel 1050, Belgium

Energies, 2014, vol. 7, issue 5, 1-41

Abstract: 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 maintain the variation between the cells as small as possible. Without an appropriate balancing system, the individual cell voltages will differ over time and battery system capacity will decrease quickly. These issues will limit the electric range of the electric vehicle (EV) and some cells will undergo higher stress, whereby the cycle life of these cells will be shorter. Quite a lot of cell balancing/equalization topologies have been previously proposed. These balancing topologies can be categorized into passive and active balancing. Active topologies are categorized according to the active element used for storing the energy such as capacitor and/or inductive component as well as controlling switches or converters. This paper proposes an intelligent battery management system (BMS) including a battery pack charging and discharging control with a battery pack thermal management system. The BMS user input/output interfacing. The battery balancing system is based on battery pack modularization architecture. The proposed modularized balancing system has different equalization systems that operate inside and outside the modules. Innovative single switched capacitor (SSC) control strategy is proposed to balance between the battery cells in the module (inside module balancing, IMB). Novel utilization of isolated bidirectional DC/DC converter (IBC) is proposed to balance between the modules with the aid of the EV auxiliary battery (AB). Finally an experimental step-up has been implemented for the validation of the proposed balancing system.

Keywords: battery management system (BMS); single switched capacitor (SSC); isolated bidirectional DC/DC converter (IBC); cell equalization; battery balancing; MATLAB/Simulink (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

Downloads: (external link)
https://www.mdpi.com/1996-1073/7/5/2897/pdf (application/pdf)
https://www.mdpi.com/1996-1073/7/5/2897/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:7:y:2014:i:5:p:2897-2937:d:35609

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().