A Multi-Stage Service Restoration Method for Complex Distribution Networks with Distributed Generators

被引：0
|
作者：
Wen J. [1 ,2 ]
Tan Y. [1 ]
He Y. [3 ]
Lei K. [1 ]
机构：
[1] College of Electrical and Information Engineering, Hunan University, Changsha
[2] College of Electrical and Information Engineering, University of South China, Hengyang
[3] School of Electrical Engineering and Automation, Hefei University of Technology, Hefei
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2018年 / 33卷 / 14期
关键词：
Complex distribution system; Distributed generators (DGs); Dynamic topology analysis; Multi-stage service restoration;
D O I：
10.19595/j.cnki.1000-6753.tces.170694
中图分类号：
学科分类号：
摘要：
This paper presented an effective multi-stage service restoration method in view of fast recovery from failures in complex distribution network with distributed generators (DGs). The whole process was composed of four stages, i.e. analyzing dynamic topology, matching islanding strategies, restoring the connectivity of network with DGs, and optimizing network. A dynamic topology analysis method was used if a fault occurred to identify the out-of-service areas, determine the restoration scheme, and update the topological parameters. In the second stage, an optimal islanding partition strategy was formulated to improve the utilization of DG and restore the maximum loads. The network connectivity should be restored if the DG is synchronized to the main grid. Whether the network optimization was carried out or not depended on violations of the power flow constraints. To avoid the infeasible solutions, a hierarchical code scheme was proposed to generate candidate solutions during network optimization. Simulation results show that the proposed method can obtain appropriate restoration plan to restore the maximization of out-of-service loads. It would improve the efficiency of service restoration by reducing the number of switching operations and the recovery time. © 2018, Electrical Technology Press Co. Ltd. All right reserved.
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页码：3332 / 3341
页数：9
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