标题：Fast self-healing control of faults in MV networks using distributed intelligence
作者：Yip, Tony ;Wang, Jinghua ;Xu, Bingyin ;Fan, Kaijun ;Li, Tianyou
作者机构：[Yip, Tony ;Wang, Jinghua ] Kehui Power Automation, Zibo, Shandong, China;[Li, Tianyou ] State Grid Fujian Electric Power Co. Ltd., Fuzhou, Fujian, Ch 更多
会议名称：24th International Conference and Exhibition on Electricity Distribution, CIRED 2017
会议日期：June 12, 2017 - June 15, 2017
来源：CIRED - Open Access Proceedings Journal
摘要：Feeder automation technology is now widely used to improve supply reliability. Automatic fault location, isolation and service restoration (FLISR) can be achieved by local, central and distributed control. This study presents a medium-voltage (MV) network self-healing system based on distributed control, which can provide significant improvements in reducing the number and duration of interruptions caused by faults. The system comprises of smart terminal units (STUs) installed in substation circuit breakers and sectionalising switches. The STUs are connected together through a peer-to-peer communication network using industrial Ethernet. The STUs detect fault and exchange fault data and control commands with each other to realise FLISR without reliance on the central master station. Details of the control algorithm are presented in this study. Successful service restoration requires self-recognition of the normally open tie switch, the position of which may change due to network reconfiguration. This technique is also presented. The control algorithm has been implemented in a smart grid pilot project of State Grid Corporation of China in Xiamen, Fujian province. Field trials have shown that the service restoration time after a fault is within 1 s, which is significantly improved as compared to the local and centralised control methods.
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