Real-time risk assessment on equipment failure outage of distribution network

The real-time risk assessment on the equipment failure outage of distribution network may improve the power supply reliability and reduce the outage loss. A risk assessment model is proposed for it,which contains the equipment failure rate and the equipment failure outage impact degree. The failure rate considers the real-time system factors and the environmental factors while the impact degree considers four indexes:load loss,electricity loss,power outage user-hours and weighted power outage users. The realtime risk assessment on equipment failure outage is implemented for a distribution network,verifying the correctness and real-time performance of the proposed method.