A Probabilistic Modeling Method of Renewable Energy Output Power Based on Orthogonal Series
A technology of renewable energy and output power, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as time-consuming and complex calculations, and achieve small differences, high fitting accuracy, and strong stability Effect
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[0050] The technical solution of the present invention will be further introduced below in combination with specific embodiments.
[0051] The invention discloses a probabilistic modeling method for output power of renewable energy sources based on orthogonal series. The invention will be further described below by taking a photovoltaic power supply as an example and combining with the accompanying drawings.
[0052]S1: Select a typical quarter in Nanchang, Jiangxi Province (sampling interval is 10min) and a half-year photovoltaic power source measurement data in an area in Jiaxing, Zhejiang Province (sampling interval is 5min) for simulation analysis. The random variable p=(P-Pmin) / (Pmax-Pmin) can be obtained by projecting the power P onto the interval [0, 1]. Divide the obtained data into training data and test data. Then, choose an orthonormal basis. Common basis functions include Hermite basis, Laguerre basis, and cosine basis. The choice of base mainly depends on the d...
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