Battery Degradation-Aware Current Derating (hosted by Energy Futures Lab Research)

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Battery degradation-aware current derating: how to duplicate battery lifetime and ease thermal management

Advanced battery degradation models are extremely effective to optimize sizing and operational strategies of batteries. The models can be used to make informed decisions or be integrated in real time algorithms. In general, it is unpractical to embed advanced degradation models. However, we find that complex degradation models can be mapped offline in simple look-up tables and then used online in the power/current derating strategies. This framework is evaluated in experimentally validated simulations of an outdoors-installed Battery Energy Storage System (BESS) with passive thermal management, which operates in a residential photovoltaic application. In comparison to standard derating, the degradation-aware derating achieves: (1) increase of battery lifetime by 65%; (2) increase in energy throughput over lifetime by 49%, while III) energy throughput per year is reduced by only 9.5%. These results show that this is a game-changing method to prolong lifetime and ease thermal management, and can become the new industry standard in battery derating.

Biography:

Dr Jorge Varela Barreras combines an academic role as battery researcher in Imperial College London (UK), with an industrial role as electric vehicle (EV) expert at CTAG (Spain) and consultant. He is involved in the community as joint chairman of IEEE UK & Ireland Education Society, and editorial board member of eTransportation by Elsevier and WEVJ by MDPI. Previously, he was a postdoc at the University of Oxford, co-chairman of the Oxford Research Staff Society, founder member of the Danish Battery Society, and co-founder of a consulting company. He received the degree in Electrical Engineering from University of Vigo (Spain), the M.Sc. in Power Electronics from Aalborg University (Denmark) and the Ph.D. also from Aalborg (2017). He has been involved in more than 20 international R&D projects with a combined budget over 100M euros. He has co-authored so far 34 peer-reviewed papers, including 14 journal articles (Q1) and 2 book chapters. His interests include EVs, energy storage systems, batteries, and battery management.

About Energy Futures Lab

Energy Futures Lab is one of seven Global Institutes at Imperial College London. The institute was established to address global energy challenges by identifying and leading new opportunities to serve industry, government and society at large through high quality research, evidence and advocacy for positive change. The institute aims to promote energy innovation and advance systemic solutions for a sustainable energy future by bringing together the science, engineering and policy expertise at Imperial and fostering collaboration with a wide variety of external partners.

The event is finished.

Date

Mar 03 2022
Expired!

Time

7:00 am - 8:00 am

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