Degradation of LFP-based Battery System used for Primary Frequency Regulation
Lithium-ion batteries have developed into a popular energy storage choice for a wide range of
applications because of their superior characteristics in comparison to other energy storage
technologies. Besides modelling the performance behaviour of lithium-ion batteries, it has
become of huge interest to accurately estimate their degradation because of both economic
and technical considerations.
The presentation will introduce a lifetime model for Lithium-ion batteries, based on lithium
iron phosphate and graphite as active materials, which is able to predict both the capacity
fade and power capability decrease; the model was developed based on accelerated ageing
tests performed in laboratory. The obtained model is used to analyse the degradation of a
battery system, which provides primary frequency regulation on the Danish energy market;
for this analysis a real mission profile obtained from field measurements is used.
Check out the presentation here
Daniel Stroe received the Dipl.-Ing. degree in control engineering from “Transilvania” University of Brasov, Romania, in 2008. In 2010, he received the M.Sc.degree in the field of wind power systems from the Department of Energy Technology, Aalborg University. He is currently working toward the Ph.D. degree at Department of Energy Technology, Aalborg University; his PhD thesis title is: “Lifetime models for Lithium-ion batteries in Grid Support Applications”.
He is co-author of the “Industrial/PhD course Storage Systems based on Li-ion Batteries for Grid Support and Automotive Applications”. His research interests are in the area of renewable energy systems, energy storage and Li-ion battery testing and modelling.
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