New energy generation power prediction method and system with self-adaptive time scale

The invention discloses a new energy generation power prediction method and system with a self-adaptive time scale. The method comprises the steps of 1, performing equal-interval power prediction according to external meteorological data; 2, solving the absolute value of the power slope between two adjacent power prediction time points according to the power prediction result in the step 1; 3, carrying out nonlinear normalization processing on the absolute value of the slope; 4, solving a prediction time interval according to a nonlinear normalization processing result; and 5, respectively calculating the generated power data of each prediction point according to the prediction time interval obtained in the step 4. According to the method, when the change trend of wind power and photovoltaic power generation is large, the power prediction frequency is improved; when the change trend of wind power generation and photovoltaic power generation is stable, the frequency of power predictionis kept unchanged, and th