Algorithm for enhancing the capability of restorable power supply in distribution systems

A concept of capability of restorable power supply and the corresponding performance indices are presented. Feeder incidence diagram is introduced to analyze the rules of network structure change and the algorithm for load transfer is used to enhance the capability of restorable power supply in distribution systems for a given duration. The performance indices, one is maximal interrupted power, and another is maximal number of interrupted customers, are computed before the operations of fault processing and apparatus maintenance. These indices can be applied in various ways: to measure the operation status of feeder, to assess the capability of power supply , to assess the effect of load transfer and switch operation, and to optimize the allocation of circuit breakers in a meshed network.