Advanced Solid-State-based Protection Scheme for High-Voltage Li-ion Battery Energy Storage System
Conference: PCIM Europe 2023 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/09/2023 - 05/11/2023 at Nürnberg, Germany
doi:10.30420/566091274
Proceedings: PCIM Europe 2023
Pages: 10Language: englishTyp: PDF
Authors:
Pereira, Thiago (Fraunhofer Institute for Silicon Technology, Germany & Kiel University, Germany)
Beiranvand, Hamzeh (Fraunhofer Institute for Silicon Technology, Germany & Kiel Nano, Surface and Interface Science (KiNSIS), Germany)
Liserre, Marco (Fraunhofer Institute for Silicon Technology, Germany & Kiel University, Germany & Kiel Nano, Surface and Interface Science (KiNSIS), Germany)
Abstract:
The need to increase the charging speed of lithium-ion (Li-ion) battery energy storage systems (BESS) has led to the usage of high-voltage (HV) battery packs in e-mobility applications. External short-circuits (ESCs) might lead to high current rates far beyond the nominal current of a battery pack and hence impose severe impacts on Li-ion batteries by raising the temperature. Moreover, the solid-electrolyte interface (SEI) layer thickness growth rate quickens the capacity fade mechanism due to the increased side reaction current density. To minimize these effects, high-speed and robust protection schemes are required to eliminate ESCs from Li-ion battery pack terminals. In this context, the paper proposes an advanced high-speed protection scheme based on a wide-bandgap (WBG) semiconductor. It is a promising solution to replace the conventional method based on magnetic circuit breakers. Finally, experimental results considering different current and voltage levels support the effectiveness of the proposed scheme under several short-circuit scenarios.