Our paper “Non-ideal Linear Operation Model for Li-ion Batteries” has been recently published in the journal IEEE Transactions on Power Systems (link in here to the paper or a preprint in arXiv).
What is this work proposing?
This paper presents a linear operation model for energy storage units that allows characterizing how the performance on battery changes dependent on its power request and stored energy. The model is sample-based, which means that it can be updated online based on measurements’ data, reflecting battery degradation.
Why is this work relevant?
We have shown that by using the classical linear battery models for operating power systems, it could lead to situations where no energy is available at the battery compromising the reliability of the system itself. The modeling error of classical models can be up to 12%. The presented approach in our paper increases the accuracy of the battery behavior while keeping the simplicity of linear modeling. Thus, this work can serve as a base for the development of more accurate and computationally efficient battery management systems, which can be either operated standalone or with renewable energy generation for the provision of arbitrage and frequency regulation services to the electric grid.
Alvaro Gonzalez presenting results from the accepted paper