METHOD OF DIVIDING IRRADIANCE REGIONS BASED ON ROTATED EMPIRICAL ORTHOGONAL FUNCTION
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United States of America Patent
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Aug 27, 2015
app pub date -
Feb 11, 2015
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Feb 25, 2014
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Abstract
A method of dividing irradiance regions based on rotated empirical orthogonal function includes following steps. A standardized matrix averaging on annual total radiation amount data is performed. An empirical orthogonal function decomposition on an annual total radiation variable field matrix is performed based on the standardized matrix averaging result of the annual total radiation amount data. A variance contribution rate and an accumulative variance contribution rate are calculated by rotating a load matrix and a factor matrix according to a varimax orthogonal rotation principle based on the empirical orthogonal function decomposition result of the annual total radiation variable field matrix. The irradiance regions are divided according to results of the variance contribution rate and the accumulative variance contribution rate.
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