A Distribution System Outage Dispatch by Data Base Method with Real-Time Revision

A distribution system emergency dispatch technique based on outage conditions is proposed in this paper by searching from a pre-calculated solution data base. In a fully automated distribution system, the proposed method can be utilized in conjunction with an on-line monitor system and dispatchers. In the data base, load flow solutions for possible outage cases under various conditions are simulated and calculated. At the instant of fault, a suitable solution is directly searched from this data base to restore the non-faulted out-of-service area. By simulations, the proposed method, which is implemented in an AT&T 3B2/300 super micro computer, can find the solution in a very efficient and appropriate way. This paper also suggests a real-time computation for load flow solutions to revise the data base for better system operation. Tests to support the proposed technique are discussed.