Impact of compound disaster on the disaster prevention and mitigation capability of urban power distribution networks: past, present and future

Abstract

The frequency of extreme events in the context of global warming, increased population density and greater ecological fragility have made our country more vulnerable to extreme events. In most cases extreme events do not occur in isolation, but through the interaction of different meteorological factors. Compound disasters are usually more hazardous than single disaster events and are driven by multiple influences. Based on literature review and combined with the actual of National Climate Center, the current response measures of the power distribution network on extreme events and the research progress of compound disasters are discussed. At present, most of the studies on the impact of power distribution network disaster prevention and mitigation are limited to the single disaster. There is a lack of research on the intrinsic connection of compound disasters, the disaster-causing mechanism, the evolution of the law, and the impact of the industry. And there is very little research on the characteristics of the spatial and temporal distribution of compound disasters and their variabilities in the distribution network area. The study of compound disaster risk for the power distribution network is still in the blank stage of the hazardous effects of disaster. Therefore, some thoughts and suggestions will be put forward from the perspective of the spatial and temporal evolution characteristics of compound disasters and their impact on the current status of the power distribution network's ability to prevent and mitigate disasters, highlighting the necessity and urgency of researching the impact of compound disasters on the electric power industry, and providing a scientific basis for preventing and responding to compound disasters to reduce their impact on electric power infrastructures.

Keywords

compound disaster / risk assessment / power distribution network / disaster prevention and mitigation