Intelligent Application at the 400/120 Kv Substation of the Paks Nuclear Power Plant

A complete reconstruction program was started at the electrical substation of the Paks Nuclear Power Plant to assist the Hungarian high voltage network to join the European network. At the operator level a new, PC-based SCADA (Supervisory Control and Data Acquisition) system was introduced. An AI-based, intelligent advisory system was developed and embedded into the SCADA system. The first part of the paper shows the substation and the hardware-software environment of the intelligent system. The second part describes the advisory functions and their realizations in rules and procedures. Besides increasing reliability and safety of energy supply the basic goal of the system is to assist the operator in faster and more effective reactions if something irregular happens at the substation, and to assist the plant engineer to better understand and evaluate what was happening.