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arXiv · 2301.05168

A Novel Modular, Reconfigurable Battery Energy Storage System: Design, Control, and Experimentation

Amir Farakhor·Di Wu·Yebin Wang·Huazhen Fang
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Abstract

This paper presents a novel modular, reconfigurable battery energy storage system. The proposed design is characterized by a tight integration of reconfigurable power switches and DC/DC converters. This characteristic enables isolation of faulty cells from the system and allows fine power control for individual cells toward optimal system-level performance. An optimal power management approach is developed to extensively exploit the merits of the proposed design. Based on receding-horizon convex optimization, this approach aims to minimize the total power losses in charging/discharging while allocating the power in line with each cell's condition to achieve state-of-charge (SoC) and temperature balancing. By appropriate design, the approach manages to regulate the power of a cell across its full SoC range and guarantees the feasibility of the optimization problem. We perform extensive simulations and further develop a lab-scale prototype to validate the proposed system design and power management approach.

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Amir Farakhor, Di Wu, Yebin Wang, Huazhen Fang. 2023-01-12. A Novel Modular, Reconfigurable Battery Energy Storage System: Design, Control, and Experimentation. https://doi.org/10.1109/tte.2022.3223993

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