Principle and Control Design of a Novel Hybrid Arc Suppression Device in Distribution Networks
Principle and Control Design of a Novel Hybrid Arc Suppression Device in Distribution Networks
复制标题
新型配电网混合式消弧装置原理及控制设计
DOI：
10.1109/tie.2021.3050390
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发表时间：
2021-01
影响因子：
7.7
通讯作者：
Chao Zhuo
中科院分区：
文献类型：
--
作者：
Bishuang Fan;Ganzhou Yao;Wen Wang;Xiangjun Zeng;Josep M. Guerrero;Kun Yu;Chao Zhuo
A single line-to-ground (SLG) fault may lead to a more severe line-to-line fault and power supply interruption if the ground-fault current exceeds a certain value. Arc suppression device (ASD) is a good solution to eliminate the ground-fault current. A novel hybrid ASD is proposed in this article, which consists of a passive device and an active one. The passive device utilizes multiterminal breakers and an isolation transformer to couple a secondary voltage of a zig-zag grounding transformer to the neutral point to compensate the majority of the ground-fault current. The active device uses a single-phase voltage source inverter to eliminate the residual fault current due to the leakage inductance of the zig-zag grounding transformer in the passive device. A dual-loop voltage and current control method for the active device is designed for the accurate residual current compensation. Results of simulation and prototype experiment validate the effectiveness of the proposed hybrid ASD. The proposed hybrid ASD does not need to detect distributed line-to-ground parameters, and it has lower cost, less control complexity, higher reliability, and better performance, compared to other ASDs.
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