Implementation of a real-time expert system for a restoration guide in a dispatching center

The authors describe a real-time expert system for a restoration guide intended for use in a dispatching center to evaluate the performance of the knowledge base system. The system configuration is decentralized by workstations and one of them is attached to a SCADA computer in order to get online and offline information on the current state of the power system. A restoration guide of this system has two operation modes. One is the on-line guide mode, which gives the operator an appropriate restoration plan and restorative procedures by using the knowledge base of expertise and heuristics on power system restoration. The other is the offline simulation mode, which can be used by the knowledge engineer to verify the validity of the acquired knowledge. Implementation issues of this system such as system function, knowledge acquisition, knowledge representation, the interface of SCADA system, and the man-machine interface are discussed. Some execution results from the online guide mode are provided to demonstrate the capability and efficiency of this system