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Multi-stage restoration strategy for service restoration in distribution systems considering outage duration uncertainty

Lookup NU author(s): Dr Anurag Sharma


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© The Institution of Engineering and Technology 2018. This study proposes a multi-stage restoration strategy to solve the service restoration problem in distribution systems considering the uncertainty of outage duration. Furthermore, it also proposes a restoration index defined in terms of (i) priority of the load restored, (ii) number of switching operations, and (iii) estimated likelihood of the restoration solution to assist the utility in enhanced decision-making. Service restoration is formulated as a single objective optimisation problem considering the maximising of the restoration index as the only objective. A decentralised multi-agent system method is developed to solve the service restoration problem considering controlled islanding of distributed generators. The uncertainty of outage duration is estimated using the maximum entropy principle-based on the cause of the fault. Exhaustive case studies are implemented on a small 38 bus and a large 119 bus test distribution system to demonstrate the effectiveness of the proposed multi-stage restoration strategy to restore the system under outage duration uncertainty.

Publication metadata

Author(s): Sharma A, Trivedi A, Srinivasan D

Publication type: Article

Publication status: Published

Journal: IET Generation, Transmission and Distribution

Year: 2018

Volume: 12

Issue: 19

Pages: 4319-4326

Print publication date: 30/10/2018

Online publication date: 19/09/2018

Acceptance date: 06/08/2018

ISSN (print): 1751-8687

ISSN (electronic): 1751-8695

Publisher: Institution of Engineering and Technology


DOI: 10.1049/iet-gtd.2018.5915


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