Distribution Network Reliability Theoretical Analysis and Assessment Online Considering Load Levels and Power Supply Transferring at Different Period

Abstract

Abstract. The theory calculation of power supply for distribution network often based on grid structure in planning stage. The period of reliability evaluation indexes are mostly one year. The impact of different load levels and periods are rarely considered. Power supply reliability analysis and calculate online considering different load levels, which has important practical significance. This paper did the research for distribution network reliability online calculation using loop search method. Refining the failure rate of power equipment, outage time, outage users and other information to every period. Making average interruption times of customer (AITC), average interruption hours of customer (AIHC) and reliability on service (RS) as indexes. This method successfully applied in distribution network of Shenzhen reliability management system.