Enhancing electric safety by improving system resiliency in face of extreme emergencies

Abstract

Sever weather condition together with other natural catastrophes can danger lives, disable communities, and disrupt electric utilities' generation, transmission and distribution systems. An incident at a high-voltage transmission line may results in more significant cascading failure if appropriate safety measured contingency schemes are not well developed or not achievable by system operators, in the case of these unpredictable events the loss of multiple substations and lines would result in the loss of electricity to millions of customers. Many strategic utilities which their functionality heavily depend on the continual existence of electricity might fall in the major hassle. Since, restoration or repair of the failed components may take days to weeks, depending on the ability to bypass damaged substations or disrupted lines using the built-in resilience of the interconnected grid, having a proper resilience-based strategy in face of extreme weather is of great importance.