Study Of Electric Power System Short-term Load Forecast Based On Fuzzy Set Technology

Power system load fOrecast, which is the base of power market teclmiquesuPporting system, is an esselltial pat of power system operation, colltroland planning.Short-term load forecast includes day load fOrecast and weekload forecast. Wth the developmellt of power system market and the powersystem atomation, practical research of short-term load forecast is muchmore important.Table searching method, Takagi and Sugeno method and improved fuzzyneural netWork method Which are based on the theory of fuzzy set arestudied and comPared in this paPer aiming to the relationship betwCen dailyload variation and its influencing weather factors. The practical data is usedto verify the validity of the method. The research is the base of the practicaldevelopment of shomprm load forecast based on weather factors.