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A cell-in-the-loop approach to systems modelling and simulation of energy storage systems
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Marco, James, Kumari, Neelu, Widanage, Widanalage Dhammika and Jones, P. (Peter), Dr. (2015) A cell-in-the-loop approach to systems modelling and simulation of energy storage systems. Energies, 8 (8). pp. 8244-8262. doi:10.3390/en8088244 ISSN 1996-1073.
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Official URL: http://dx.doi.org/10.3390/en8088244
Abstract
This research is aligned with the engineering challenge of scaling-up individual battery cells into a complete energy storage system (ESS). Manufacturing tolerances, coupled with thermal gradients and the differential electrical loading of adjacent cells, can result in significant variations in the rate of cell degradation, energy distribution and ESS performance. The uncertain transition from cell to system often manifests itself in over-engineered, non-optimal ESS designs within both the transport and energy sectors. To alleviate these issues, the authors propose a novel model-based framework for cell-in-the-loop simulation (CILS) in which a physical cell may be integrated within a complete model of an ESS and exercised against realistic electrical and thermal loads in real-time. This paper focuses on the electrical integration of both real and simulated cells within the CILS test environment. Validation of the CILS approach using real-world electric vehicle data is presented for an 18650 cell. The cell is integrated within a real-time simulation model of a series string of similar cells in a 4sp1 configuration. Results are presented that highlight the impact of cell variability (i.e., capacity and impedance) on the energy available from the multi-cell system and the useable capacity of the physical cell.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TD Environmental technology. Sanitary engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
Library of Congress Subject Headings (LCSH): | Lithium ion batteries, Electric automobiles, Energy storage | ||||||||
Journal or Publication Title: | Energies | ||||||||
Publisher: | M.D.P.I.A.G. | ||||||||
ISSN: | 1996-1073 | ||||||||
Official Date: | 5 August 2015 | ||||||||
Dates: |
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Volume: | 8 | ||||||||
Number: | 8 | ||||||||
Number of Pages: | 19 | ||||||||
Page Range: | pp. 8244-8262 | ||||||||
DOI: | 10.3390/en8088244 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 30 December 2015 | ||||||||
Date of first compliant Open Access: | 30 December 2015 | ||||||||
Funder: | University of Warwick Research Development Fund, Warwick Manufacturing Group |
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