Restoration of the Large Electric Power System Using a Computer Generated Sequence of Target Systems

Abstract

New techniques for restoration of a failed large power system are presented using decision and control approach (Zaborszky, 1980 b). The proposed method takes advantage of fast digital computing, reliable communications, data base structure, modern system theory to set up an expert computer-operator partnership. The computer establishes target systems for future time points for the most effective use of all equipment expected to be available. Effective computer operations are readily established for this task. Once the operator is presented with target systems which he knows to be viable he can very effectively pick action sequences to reach the target. In turn the computer again can check for consistency and arrange the precise time sequence of individual restoration steps. The result is the on line res t oration plan. During its entire preparation and execution the operator is monitoring the plan and the computer is monitoring its execution to guard against improper sequencing or time delays. Generation of the targets is the key feature of this approach. It is a large scale problem which must be done with high computational efficiency and with sufficient accuracy to make the proposed approach successful. Accordingly, the major part of the paper is devoted to the target generation problem.