A comprehensive survey of distribution system resilience to extreme weather events: concept, assessment, and enhancement strategies
Puspendu Ghosh, Mala De
Abstract
The frequency of extreme weather events and the resulting impact on the electric grid has grown in recent years. This paper reviews previous work on distribution system resilience, concentrating on electrical network protection in the face of extreme events. Firstly, it analyses confounding terminology used in power systems resilience studies, such as definitions, resilience vs reliability, and resilience curve. Secondly, resilience techniques are examined to understand better the influence of extreme events on the probability and duration of electrical network failures. The difficulties involved in the resilience quantification and analysis process due to several perceptions and complexity in the characterisation of extreme events are pointed out. Thirdly, this research divides current resilience enhancement techniques into two categories: planning-based and operational-based resilience. It contributes to a comprehensive study of various methods in each of those categories. Finally, the research gaps and possible solutions to existing distribution system resilience methods are provided.