A Novel Topology for High Voltage Battery Energy Storage Systems

This paper introduces a novel topology for high voltage battery energy storage systems (BESS), addressing the challenge of achieving necessary power and voltage for effective energy storage without exposing cells to harmful high voltages stress. Such exposure risks accelerated degradation and electrical faults. This research presents a scalable and simple solution using high frequency power transformers (HFPT) in a cascade configuration, allowing the use of low voltage cells in high voltage applications and avoiding the issues common to traditional series-parallel cell setups. The key advantages of the proposed topology include its simplicity, scalability, and ability to significantly reduce voltage stress, thereby enhancing system efficiency and reliability. Simulation results from MATLABSimulink support the effectiveness of the presented topology, suggesting its potential to improve high voltage battery storage systems.