THE CHAOTIC PROPERTY OF POWER LOAD AND ITS FORECASTING

Power system load data has been reconstructed in phase spase on the base of chaos theory. We have showed two dimesional picture of the data, and calculated its correlation dimesion D 2 and maximum lyapunov exponent ( λ 1) at the same time. From the result that we have worked out, we find that power system load has chaotic property. It appears the seeming irregular movement because of its fractional D 2 and positive( λ 1). Power load has been forecasted in 24 hours on the base of local linear prediction in the end and this method is a new way to power load forecast.