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The accuracy of input data in artificial neural networks is the main factor affecting the accuracy of PV power prediction. This article uses accurate weather data from historical measurements and uses the grey model GM(1,1) to predict the current weather data. When using the grey model, multiple lengths of historical data sequences are selected for prediction, and the average relative error is used to evaluate the fitting effect on historical data. The weather data predicted by the sequence with the best fitting effect on historical data is selected. The input data of the artificial neural network is obtained by weighting the weather data predicted by the weather forecast with the weather data predicted by the grey model. The weights are dynamically adjusted based on the fitting effect of the grey model on historical data. The simulation of existing photovoltaic power station data has verified the effectiveness of the algorithm proposed in this paper.<\/jats:p>","DOI":"10.1177\/14727978241302445","type":"journal-article","created":{"date-parts":[[2025,4,29]],"date-time":"2025-04-29T03:15:24Z","timestamp":1745896524000},"page":"1678-1685","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Neural network input data calculation method based on the grey model"],"prefix":"10.66113","volume":"25","author":[{"given":"Xiankui","family":"Wen","sequence":"first","affiliation":[{"name":"Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang 550002, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ke","family":"Zhou","sequence":"additional","affiliation":[{"name":"Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang 550002, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junwei","family":"Zhang","sequence":"additional","affiliation":[{"name":"Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang 550002, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu","family":"Fu","sequence":"additional","affiliation":[{"name":"Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang 550002, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mingjun","family":"He","sequence":"additional","affiliation":[{"name":"Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang 550002, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"55691","published-online":{"date-parts":[[2024,11,26]]},"reference":[{"issue":"10","key":"e_1_3_3_2_2","first-page":"244","article-title":"Comprehensive evaluation of shared energy storage towards new energy accommodation scenario under targets of carbon emission peak and carbon neutrality","volume":"41","author":"Qiu W","year":"2021","unstructured":"Qiu W, Wang M, Lin Z, et al. 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