Method and device for forecasting combined output of multiple wind farms
An output forecasting and wind farm technology, applied in circuit devices, wind power generation, electrical components, etc., can solve problems such as the inability to fully consider the high dimension and time-varying correlation characteristics of the combined output of multiple wind farms, and achieve high accuracy and high performance. The effect of prediction accuracy
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[0052] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0053] First, the basic concepts of the present invention are as follows: 1. Based on the ARIMA-GARCH model, a dynamic marginal distribution function model of wind farm output and prediction error data is established. 2. The dynamic R-Vine Copula model is established in three steps, including: flexible selection of function categories of each Pair Copula based on AIC and BIC indicators; dynamic para...
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