A fuzzy logic based expert system for short term energy negotiations

An expert system is proposed, based upon fuzzy logic systems (FLSs) to help a utility in preparing a hourly offer to a Spot Energy Market Managing Office (SEMMO). The offer includes amounts of energy and prices (S/M w-hr) for next day dispatch hourly ordered. The energy system is supposed to be hydraulic. A FLS qualifies every offering agent according to its hydrological conditions. This qualification is entered to another FLS to produce prices and available energy profiles for every agent, creating an expert based simulation scenery and thus enacting the user to prepare knowledge based offers. The system is enhanced by adding an additional FLS (several in fact) to deal with private water accumulation and plant dispatch policies, followed by an economic dispatch simulator to adjust final price scheme. Two implementations are presented.