| Title |
A Study on Service Restoration Scheme for Distribution Networks using Whale Optimization Algorithm |
| Authors |
츄방제(Bangjie Qiu) ; 오윤식(Yun-Sik Oh) |
| DOI |
https://doi.org/10.5370/KIEE.2023.72.1.30 |
| Keywords |
Distribution Network; Loop-based Encoding; Service Restoration; Whale Optimization Algorithm |
| Abstract |
In order to restore outage loads downstream of a faulty zone in distribution networks, service restoration should be taken by using normally open switches to transfer the loads to other feeders. This paper presents a service restoration scheme based on whale optimization algorithm (WOA) to rapidly search possible topology candidates satisfying operational constraints in distribution networks such as radial topology. Loop-based topology encoding scheme is utilized for ensuring that all topology candidates keep radial structure by opening only one line in each loop. WOA, one of the nature-inspired meta-heuristic algorithms, mimics hunting scheme of humpback whales to search such a broad solution space and find the best solution. Multiple case studies on IEEE 33-bus system are conducted under various conditions in order to verify its performance and it is proven that the proposed scheme is effective in finding the best service restoration plan. |