Sun-Tracking System with PLC Control for Photo-Voltaic Panels

Sungur, Cemil

doi:10.1080/15435070701665404

Cited by 25 publications

(5 citation statements)

References 9 publications

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“…Solar tracking is one of the most applied solutions aiming to increase the overall efficiency (the product between collecting and conversion efficiencies) of solar conversion devices (photovoltaic or thermal) (Abdallah 2004;Karimova et al 2005;Sungur 2007; Moldovan, Visa, and Burduhos 2011). The main goal of known tracking systems is to increase the amount of solar irradiance collected by a solar conversion device, especially the direct/beam (B) component, which is preponderant in most areas and to which both photovoltaic and thermal systems are sensitive (Helwa et al 2000;Abu-Khader, Badran, and Abdallah 2008;Singh and Othman 2009;Fahl and Ganapathisubbu 2011).…”

Section: General Aspectsmentioning

confidence: 99%

Modeling and Optimization of the Global Solar Irradiance Collecting Efficiency

Burduhos

Vişa

Neagoe

et al. 2014

International Journal of Green Energy

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This article presents a mathematical model for estimating the direction of the maximal global solar irradiance (MGSI) based on actual values of direct/beam and diffuse irradiance, model that can be used to determine a correct value of the global collecting efficiency of solar tracking systems. Using this model, the collecting efficiency can be improved by tracking the solar conversion surface to minimize its incidence angle with the maximal global irradiance instead of the beam irradiance. The analysis of the numerical results obtained using in-field data-based simulations showed a significant improvement of the real collecting efficiency, especially during cloudy days when the diffuse irradiance is preponderant.

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Section: General Aspectsmentioning

confidence: 99%

Modeling and Optimization of the Global Solar Irradiance Collecting Efficiency

Burduhos

Vişa

Neagoe

et al. 2014

International Journal of Green Energy

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“…1). This azimuth angle (as) which the sun makes with the earth's surface ca.0n be mathematically calculated for each month, day and hour of the year [14][15][16].…”

Section: B Solar Azimuth Angle (A S )mentioning

confidence: 99%

The Irrigation System Fed from Biaxial PV Panels

Terzioğlu

Kazan

Sungur

2015

2015 2nd International Conference on Information Science and Control Engineering

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In this study, an irrigation system which has an adaptive control system fed from the photovoltaic panels was designed and developed. The control system was designed as an electromechanical system which photovoltaic panel follows the sun on two axes, including both azimuth angle and zenith angle. In the executed system, the tracking of the sun was performed in both axes using dsPIC. Moreover, the control circuit with dsPIC processes the data obtained from the calculations of currentvoltage and liquid levels. Differently from other studies in the literature, in this study, the source which feeds the irrigation system was determined according to the power obtained from the panel and PV panel was moved in two axes. The power generated by the panel is fed from battery if the power is below the determined power value and the panel is used if the power is above it. Through this developed algorithm, it was aimed to keep the tank full when the water is needed and prevent unnecessary discharge of the battery and lengthen its economic life depending on the quantity of charging-discharging of it. As a result of this study, the system was optimal activated without the requirement of any other energy except PV panel.

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“…If the panel is directly coupled with the motor then it will be translational motion, but if the panel is connected through various gears or mechanical assembly, then the necessary computations have to be done by the control circuit to compensate for the rotation of the panel [2]. It is not required to rotate the assembly for every one degree difference.…”

Section: Designmentioning

confidence: 99%

Algorithm-based, single axis rotation of a solar panel apparatus for low power devices

2015

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This paper discusses the implementation of singleaxis algorithm in accordance with Clear Sky Model for a lowpower device such as a Wireless Mesh Sensor Network (WMSN) module. Solar energy can be used to power up modules which have low-power requirement such as WMSNs, specially when these WMSNs are mounted at remote locations where regular maintenance and changing battery cells is difficult. We devise a solar tracker assembly using a modified algorithm which tracks the Sun's accurate position. By using simple information such as the location's latitude, longitude and local time, various solar angles such as azimuth, zenith and altitude can be calculated using this algorithm and the assembly can be rotated. A successful implementation of such an algorithm with the help of a servo motor assembly for a single-axis angle, azimuth angle is described in this paper. Future aspects of implementing dual axis trackers are also addressed.

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Sun-Tracking System with PLC Control for Photo-Voltaic Panels

Cited by 25 publications

References 9 publications

Modeling and Optimization of the Global Solar Irradiance Collecting Efficiency

Modeling and Optimization of the Global Solar Irradiance Collecting Efficiency

The Irrigation System Fed from Biaxial PV Panels

Algorithm-based, single axis rotation of a solar panel apparatus for low power devices

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