Short-Term Photovoltaic Power Forecasting Based on a Novel Autoformer Model

被引:6
|
作者
Huang, Yuanshao [1 ]
Wu, Yonghong [1 ]
机构
[1] Wuhan Univ Technol, Coll Sci, Dept Stat, Wuhan 430070, Peoples R China
来源
SYMMETRY-BASEL | 2023年 / 15卷 / 01期
基金
中国国家自然科学基金;
关键词
photovoltaic power; deep learning; short-term forecasting; transformer model; nonstationarity; multi-scale analysis;
D O I
10.3390/sym15010238
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Deep learning techniques excel at capturing and understanding the symmetry inherent in data patterns and non-linear properties of photovoltaic (PV) power, therefore they achieve excellent performance on short-term PV power forecasting. In order to produce more precise and detailed forecasting results, this research suggests a novel Autoformer model with De-Stationary Attention and Multi-Scale framework (ADAMS) for short-term PV power forecasting. In this approach, the multi-scale framework is applied to the Autoformer model to capture the inter-dependencies and specificities of each scale. Furthermore, the de-stationary attention is incorporated into an auto-correlation mechanism for more efficient non-stationary information extraction. Based on the operational data from a 1058.4 kW PV facility in Central Australia, the ADAMS model and the other six baseline models are compared with 5 min and 1 h temporal resolution PV power data predictions. The results show in terms of four performance measurements, the proposed method can handle the task of projecting short-term PV output more effectively than other methods. Taking the result of predicting the PV energy in the next 24 h based on the 1 h resolution data as an example, MSE is 0.280, MAE is 0.302, RMSE is 0.529, and adjusted R-squared is 0.824.
引用
收藏
页数:29
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