Study on Simulation Method of Diffuse Radiation for Indoor Verification of Photoelectric Insolation Meter

Table 1. Correlation analysis between G_d/G₀ and SD/SD₀、T_a、ρ、A_q
View table
View in Article
Table 1. Correlation analysis between G_d/G₀ and SD/SD₀、T_a、ρ、A_q
G_d/G₀
Linear equation Correlation coefficient
SD/SD₀ y = -0.0156x + 0.732 0.736**
T_a y = 0.892x - 0.9061 -0.720**
ρ y = 0.5679x - 1.5221 -0.565**
A_q y = -2.4441x + 49.303 0.572**

Table 2. Fitting performance evaluation index

View table

View in Article

Table 2. Fitting performance evaluation index

	Formula	Meaning	Numerical
RMSE	$\sqrt[]{\frac{1}{n} \sum_{i = 1}^{n} {(G_{d p} - G_{d})}^{2}}$	Represents the degree of dispersion between the fitted value and the measured value of the horizontal plane solar scattering radiation	0.353 7
MAPE	$\frac{1}{n} \sum_{i = 1}^{n} \| \frac{G_{d p} - G_{d}}{G_{d}} \times 100 % \|$	Represents the average ratio of the error between the fitted value and the measured value to the measured value of the daily scattered radiation amount of each horizontal plane	4.88
R²	$\frac{\sum_{i = 1}^{n} (G_{d p} - G_{d p m}) (G_{d} - G_{d m})}{\sqrt[]{[\sum_{i = 1}^{n} {(G_{d p} - G_{d p m})}^{2}] {(G_{d} - G_{d m})}^{2}}}$	Represents the degree of linear correlation between the fitted value and the measured value of the daily scattered radiation in the horizontal plane	0.810 9

Tools

Get Citation

Copy Citation Text

Lingyun WANG, Yue MA, Haoyang LI, Guangxi LI, Ru ZHENG, Yuxin DU. Study on Simulation Method of Diffuse Radiation for Indoor Verification of Photoelectric Insolation Meter[J]. Acta Photonica Sinica, 2021, 50(5): 233

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites