Shandong Science ›› 2023, Vol. 36 ›› Issue (1): 115-123.doi: 10.3976/j.issn.1002-4026.2023.01.015

• Energy and Power • Previous Articles     Next Articles

Predicting interannual variation of global solar radiation trends in Jinan City based on time series sparse coefficient model

JIA Xingbin(), GONG Xiang*()   

  1. School of Mathematics and Science, Qingdao University of Science and Technology, Qingdao 266010, China
  • Received:2022-02-16 Online:2023-02-20 Published:2023-02-08

Abstract:

In this paper, we have used the observed data of annual total solar radiation from 1961 to 2016 in Jinan, Shandong Province, and compared and analyzed the fitting results of time series models AR(5) and ARIMA((1,2,4),1,0) via model identification and statistical tests. As per the residual test results, the sparse coefficient model ARIMA((1,2,4),1,0) can be used to predict the total annual surface solar radiation. The prediction results show that the overall interannual variation of surface solar radiation in Jinan from 2017 to 2025 follows an increasing trend and the utilization of solar energy resources can be further explored. Compared to the results of the multiple linear regression model, the time series sparse coefficient model has less error and higher prediction accuracy.

Key words: total annual solar radiation, time series analysis, ARIMA sparsity coefficient model, interannual variability, trend prediction, model comparison

CLC Number: 

  • TK511