Power forecasting of ultra-short-term photovoltaic station based on NWP similarity analysis

被引:0
|
作者
Zhang S. [1 ]
Dong L. [1 ]
Ji D. [1 ]
Hao Y. [1 ]
Zhang X. [2 ]
机构
[1] Schoolof Automation, Beijing Institute of Technology, Beijing
[2] Zhuhai College of Beijing Institute of Technology, Zhuhai
来源
关键词
Numerical weather prediction; Pearson correlation coefficient; Photovoltaic station; Power forecasting; Similarity analysis;
D O I
10.19912/j.0254-0096.tynxb.2020-0717
中图分类号
学科分类号
摘要
According to the fact that photovoltaic plants have similar generation power under similar weather conditions, an Ultra-short-term power forecasting method based on NWP similarity analysis is proposed. The proposed method uses the Pearson correlation coefficient to find weather forecast data similar to the predicted time, and estimates the power in the predicted time based on the actual power of the similar time. The proposed method can efficiently forecast the generated power based on the weather forecast data. Compared with the neural network, the proposed method has a better effect, especially in the period of large data fluctuations, which has higher reliability. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
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收藏
页码:142 / 147
页数:5
相关论文
共 16 条
  • [1] CHANG Y X., Current situation and prospect of solar photovoltaic power generation, Chemical engineering design communications, 44, 10, (2018)
  • [2] CECI M, CORIZZO R, FUMAROLA F, Et al., Predictive modeling of PV energy production: How to set up the learning task for a better prediction, IEEE transactions on industrial informatics, 13, 3, pp. 956-966, (2016)
  • [3] NIU D X, WANG K K, SUN L J, Et al., Short-term photovoltaic power generation forecasting based on random forest feature selection and CEEMD: A case study, Applied soft computing, 93, (2020)
  • [4] GAO M M, LI J J, HONG F, Et al., Short-term forecasting of power production in a large-scale photovoltaic plant based on LSTM, Applied sciences, 9, 15, (2019)
  • [5] ZHONG C X., Output power prediction of a photovoltaic system based on similar day algorithm and Elman neural network, Journal of Nanjing Institute of Technology, 14, 1, pp. 42-47, (2016)
  • [6] LING J, NIU D X, WANG P., Photovoltaic load forecasting based on the similar day and Bayesian neural network, Chinese journal of management science, 23, 3, pp. 118-122, (2015)
  • [7] YANG X Y, XU M L, XU S C, Et al., Day-ahead forecasting of photovoltaic output power with similar cloud space fusion based on incomplete historical data mining, Applied energy, 206, 15, pp. 683-696, (2017)
  • [8] WANG F, ZHEN Z, MI Z, Et al., Solar irradiance feature extraction and support vector machines based on weather status pattern recognition model for short-term photovoltaic power forecasting, Energy & buildings, 86, pp. 427-438, (2015)
  • [9] JI S X, WANG Q, YAO Y, Et al., Photovoltaic power generation combination forecasting based on similar days and cross entropy theory, Journal of Nanjing Normal University(engineering technology edition), 70, 2, pp. 25-34, (2018)
  • [10] RODGERS J L, NICEWANDER W A., Thirteen ways to look at the correlation coefficient, The American statistician, 42, pp. 59-66, (1988)