A review of single-phase-to-ground fault regulation devices for distribution networks

Yuchao Hou, Qi Guo, Chunming Tu, Fan Xiao, Lei Wang, Fei Jiang, Kun Yu and Xin Wang

Renewable and Sustainable Energy Reviews, 2024, vol. 200, issue C

Abstract: Improving the operational reliability of distribution networks is an important goal in many countries and regions. The increase in the total length of feeders and the proportion of cable lines creates a larger single-phase-to-ground fault current, which makes the grounding arc difficult to self-extinguish, and then it may easily cause permanent fault events in the distribution network. The ground fault regulation device, also known as an arc-suppression device, is regarded as an important piece of equipment for the reliable and safe operation of ineffective grounding distribution networks. However, owing to the extensive access of cable lines and power electronic devices in the distribution network, the proportion of harmonic and active power contents in the ground fault current has increased, resulting in higher requirements for arc-suppression device performance. Based on the aforementioned, this study systematically summarizes the research work regarding arc-suppression devices from three aspects, namely, the topology of the arc-suppression device with its evolution trend, the control strategy of the arc-suppression device with its optimization method, and the functional integration method of the arc-suppression and electrical power regulation devices. Furthermore, the most representative topologies and control methods in each category are thoroughly described and briefly compared. The main challenges and critical problems of arc-suppression devices in the new distribution network are analyzed and summarized.

Keywords: Distribution network; Arc suppression; Single-phase-to-ground fault; Topology; Control method; Multi-function integration (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.rser.2024.114602

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