Dual-axis solar tracker with satellite compass and inclinometer for automatic positioning and tracking

Wu, Chien-Hsing; Wang, Hui-Chiao; Chang, Horng‐Yi

doi:10.1016/j.esd.2021.12.013

Cited by 39 publications

(12 citation statements)

References 31 publications

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“…The PV module efficiency at maximum power depends mainly on the cell temperature and can be written [5,17,22]: Standard geometrical equations are used to calculate angles of incidence (α fixed ) for fixed systems given surface tilt β, solar azimuth γ sun , azimuth γ, and angle of the solar zenith θ sun , as detailed in the following equation [23,24].…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

The effects of climate change on photovoltaic solar production in hot regions

Al-Baghdadi¹,

Ridha²,

AL-Khayyat³

2022

Diagnostyka

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The work of solar cells and their production of electrical energy have been affected by climate change, especially in hot regions which became significantly hotter and still receive relatively high levels of solar radiation throughout the year. Higher ambient temperature and solar radiation result in higher PV cell temperature and, therefore, the reduction in PV module power output and efficiency. This study investigates how a PV module performs throughout the year in a hot region by considering the variations in cell temperature resulting from changes in ambient temperature and solar radiation every day. The tilt angles and two-axis tracking have also been examined. Results indicate that the two-axis solar tracking system is critical to use in hot regions for obtaining higher output power. Therefore, part of this power can be used to cool solar panels using various methods to keep their efficiency high, such as operating air fans or operating pumps to cool them with coolant.

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Section: Methodsmentioning

confidence: 99%

“…α fixed = cos −1 [sin(θ sun ) cos(γ − γ sun ) sin(β) + cos(θ sun ) cos(β)] (6) Solar panels mounted on the tracking systems ensure the azimuth and the surface tilt are set to equal sun azimuth angle and sun zenith angle, respectively, and naturally the incidence angle is set to zero [23][24][25][26].…”

Section: Methodsmentioning

confidence: 99%

The effects of climate change on photovoltaic solar production in hot regions

Al-Baghdadi¹,

Ridha²,

AL-Khayyat³

2022

Diagnostyka

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“…Based on experimental results it was realized that the system precisely regulates the solenoid valve, which turns to improve efficiency and proven food security. Normally, [65,66].…”

Section: Micro Controllermentioning

confidence: 99%

Agrovoltaic and Smart Irrigation: Pakistan Perspective

Asfahan¹,

Ahmad²,

Majeed³

et al. 2023

Irrigation and Drainage - Recent Advances

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The present study aims to investigate the prospects and challenges that need to be encountered for the adaptation of the novel agrovoltaic irrigation system (AVIS) in Pakistan. The agro-production scenario in Pakistan is periodically declining and leading toward the high delta crops, which develop severe pressure on the conventional energy and water resources. Groundwater might be a viable water source, but its pumping requires massive energy. In addition, excessive pumping declines the water table at a higher pace as compared to the recharge rate hence leading the country toward the exploitation of the valuable reservoir. The AVIS could be an energy-efficient and reliable irrigation solution in a manner of harvesting solar energy for driving smart irrigation systems capable to pumps the metered groundwater according to field requirements. Lack of local understanding, skilled/technical personnel, dependence on local technology, and major capital expenditures might impede technological adaption. The government should take necessary measures to replenish the groundwater reservoirs and also execute research projects that strengthen ground knowledge of AVIS.

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“…Sensor LDR 2 merupakan sensor yang bertanggung jawab untuk pergerakan motor pada sumbu X. Jika nilai pembacaan LDR 1 lebih besar dari LDR 2, maka motor berputar clockwise (CW), jika sebaliknya, motor berputar counterclockwise (CCW). Sensor 3 merupakan sensor yang bertanggung jawab untuk pergerakan motor pada sumbu Y. Jika pembacaan LDR 1 lebih besar dari LDR 3, maka motor berputar clockwise (CW), jika sebaliknya, motor berputar counterclockwise (CCW) [16], [17]. Hasil dari ketiga nilai sensor LDR diatas, diproses pada perangkat mikrokontroler dengan menggunakan kontroler sehingga menghasilkan output sesuai dengan hasil pemrograman.…”

Section: A Desain Sistem Penjejak Cahayaunclassified

Komparasi Performansi Antara Proportional Integral Derivative Controller (PID) Dan Fuzzy Logic Controller (FLC) Pada Penjejak Cahaya Dengan Tiga Sensor

Gunawan¹,

Away²,

Sara³

et al. 2022

eltikom

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The technology of light tracking monitors the solar panels to track the sun with full efficiency, and the solar panels can be upright to the sunlight in order to maximize the absorption of solar energy, so this system has a higher efficiency than non-tracking systems. This study aimed to obtain a controller that works accurately between the Proportional, Integral, and Derivative Controller (PID) and the Fuzzy Logic Controller (FLC) Algorithm by comparing the performance of the two algorithms in regulating the direction of the light tracker to detect the presence of sunlight. This solar prototype uses nine lamps as a simulation to determine the accuracy and precision of the angles of the two light trackers. The parameters compared in this test were the aspects of angular velocity and angle accuracy. The mean value of angular velocity obtained from the PID light tracking test results was 0.16 rad/s and the average linear velocity was 0.092 m/s whereas in the FLC light tracker, the average angular velocity value was 0.207 rad/s. Tests using a PID light tracker resulted in an X-axis accuracy of 45% and a Y-axis accuracy of 30%. The FLC light tracker, on the other hand, had an X-axis accuracy of 80% and a Y-axis accuracy of 30%.The precision value obtained by the PID light tracker on the X axis was 45% and the Y axis was 38%, while the precision value obtained by the FLC light tracker on the X axis was 71% and the Y axis was 33%. Based on the overall calculations, it can be concluded that the FLC light tracker has an increase in the speed value of 29% and an increase in the value of accuracy in the accuracy aspect by 35% and the precision aspect by 26% compared to the PID light tracker in previous studies.

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Dual-axis solar tracker with satellite compass and inclinometer for automatic positioning and tracking

Cited by 39 publications

References 31 publications

The effects of climate change on photovoltaic solar production in hot regions

The effects of climate change on photovoltaic solar production in hot regions

Agrovoltaic and Smart Irrigation: Pakistan Perspective

Komparasi Performansi Antara Proportional Integral Derivative Controller (PID) Dan Fuzzy Logic Controller (FLC) Pada Penjejak Cahaya Dengan Tiga Sensor

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