Cable Fault Characteristics of Energy Storage in DC Microgrids

Chen, Liuyang; Chen, Qing; Zhang, Zhiming; Xie, Ran-Ran; Wang, Mingyang

doi:10.1109/acpee48638.2020.9136207

Cited by 4 publications

(1 citation statement)

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“…Resonance-based fault current limiter (RFCL) [24], including a series reactor and capacitor bank, to protect BEES in dc microgrid [25]. In addition, the optimal placement of FCL in a microgrid is a practical method that can improve the protection of microgrid [26], [27]:…”

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confidence: 99%

The Principles of Controlled DC-Reactor Fault Current Limiter for Battery Energy Storage Protection

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Popov

Moghim³

et al. 2024

IEEE Trans. Ind. Electron.

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The significance of battery energy storage systems (BESSs) technology has been growing rapidly, mostly due to the need for microgrid applications and the integration of renewables. Relevant to the importance of utilization of BESS in microgrids, the protection of the BESS during microgrid faults has become a concern too. The short circuit in a microgrid cause overcurrent for all of the integrated sources. BESS, as one of the sources in the microgrid, is heavily influenced by fault occurrence. The overcurrent can easily damage power electronic converter switches, battery management systems, and damage battery banks. Fault current limiters are appropriate protection devices that have been massively studied. In this article, we propose a controllable reactor fault current limiter (CRFCL) to protect the BESS against fault currents. The proposed CRFCL can control the fault current value supplied by BESS during a fault condition as a current regulator. It is realized by means of the operation of solid-state switches and series dc-reactor behavior. The main achievement of CRFCL is the protection of BESS against fault currents without delay. The simulations of the proposed structure are carried out in a MATLAB/Simulink platform, and they are confirmed and validated by experimental test results.

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