TY - JOUR
T1 - High-Precision Luminosity Sensor for Solar Applications
AU - Palomino-Resendiz, Sergio I.
AU - Flores-Hernandez, Diego A.
AU - Lozada-Castillo, Norma
AU - Luviano-Juarez, Alberto
N1 - Publisher Copyright:
© 2001-2012 IEEE.
PY - 2019/12/15
Y1 - 2019/12/15
N2 - In the present work, the design of a high-precision luminosity sensor (HPLS) is shown. On sunny and clear days, the design allows the sun position to be determined with 99.7% accuracy; in the presence of clouds (partly sunny or cloudy conditions), the most clear area, which represents the area with the greatest amount of direct solar radiation at the moment, is determined. In both cases (clear and cloudy sky conditions), the above is achieved through the location in real time of the maximum luminosity point (MLP) in the sky through the construction of luminosity gradients, which are obtained under the acquisition and processing of the output signals of a set of sensors constituting the HPLS. The distribution of the sensors is determined through optical and geometric analyses. The HPLS is validated through a set of experiments in which the search and signaling of the MLP were carried out on a sunny day and on days where partly sunny and cloudy conditions were present. Finally, a technical comparative analysis between the HPLS and other sensors is presented; the cost of the HPLS is $293.50 USD (obtained in a calculation performed in this work), and a cost comparison with some commercial sensors is presented as well.
AB - In the present work, the design of a high-precision luminosity sensor (HPLS) is shown. On sunny and clear days, the design allows the sun position to be determined with 99.7% accuracy; in the presence of clouds (partly sunny or cloudy conditions), the most clear area, which represents the area with the greatest amount of direct solar radiation at the moment, is determined. In both cases (clear and cloudy sky conditions), the above is achieved through the location in real time of the maximum luminosity point (MLP) in the sky through the construction of luminosity gradients, which are obtained under the acquisition and processing of the output signals of a set of sensors constituting the HPLS. The distribution of the sensors is determined through optical and geometric analyses. The HPLS is validated through a set of experiments in which the search and signaling of the MLP were carried out on a sunny day and on days where partly sunny and cloudy conditions were present. Finally, a technical comparative analysis between the HPLS and other sensors is presented; the cost of the HPLS is $293.50 USD (obtained in a calculation performed in this work), and a cost comparison with some commercial sensors is presented as well.
KW - FOV
KW - MLP
KW - Solar sensor
KW - acceptance angle
KW - photodiode
KW - solar energy
KW - solar tracker
KW - solar trajectory
KW - solid angle
UR - http://www.scopus.com/inward/record.url?scp=85076362747&partnerID=8YFLogxK
U2 - 10.1109/JSEN.2019.2939509
DO - 10.1109/JSEN.2019.2939509
M3 - Artículo
AN - SCOPUS:85076362747
SN - 1530-437X
VL - 19
SP - 12454
EP - 12464
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 24
M1 - 8823935
ER -