Abstract

This paper proposes a methodology to solve contingency load transfer of distribution systems by applying the object-oriented expert system. By this method, the faulted area is isolated and restored and the unfaulted, but out of service, area is restored effectively. Since the fault restoration has to be performed in a short time period and the affected area has to be constrained in a small area, it has become a critical issue to enhance the system reliability for the distribution system operation. The knowledge rule base with object-oriented programming can be designed to support distribution contingency management in an effective manner. The distribution facilities are designed as a class in the database and the distribution operation rules are created to form the knowledge base. To demonstrate the effectiveness of the proposed method, one of the Taipower distribution systems is selected for computer simulation. It is concluded that the contingency load transfer of distribution systems can be solved efficiently by identifying the proper switching operation to solve the distribution contingency problem.

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