Design and Construction of a Two Axes Sun Tracker Prototype with a Real Time Controller and Hybrid Stepper Motors.
Gad, H., El-Gayar, S., Gad, H. (2020). Design and Construction of a Two Axes Sun Tracker Prototype with a Real Time Controller and Hybrid Stepper Motors.. EKB Journal Management System, 34(4), 73-82. doi: 10.21608/bfemu.2020.126761
Helmy El Sayed Gad; Safya M. El-Gayar; Hesham Helmy Gad. "Design and Construction of a Two Axes Sun Tracker Prototype with a Real Time Controller and Hybrid Stepper Motors.". EKB Journal Management System, 34, 4, 2020, 73-82. doi: 10.21608/bfemu.2020.126761
Gad, H., El-Gayar, S., Gad, H. (2020). 'Design and Construction of a Two Axes Sun Tracker Prototype with a Real Time Controller and Hybrid Stepper Motors.', EKB Journal Management System, 34(4), pp. 73-82. doi: 10.21608/bfemu.2020.126761
Gad, H., El-Gayar, S., Gad, H. Design and Construction of a Two Axes Sun Tracker Prototype with a Real Time Controller and Hybrid Stepper Motors.. EKB Journal Management System, 2020; 34(4): 73-82. doi: 10.21608/bfemu.2020.126761

Design and Construction of a Two Axes Sun Tracker Prototype with a Real Time Controller and Hybrid Stepper Motors.

MEJ- Mansoura Engineering Journal
Article 14, Volume 34, Issue 4, December 2009, Page 73-82  XML PDF (626.28 K)
Document Type: Research Studies
DOI: 10.21608/bfemu.2020.126761
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Authors
Helmy El Sayed Gad email 1; Safya M. El-Gayar2; Hesham Helmy Gad3
1Prof. at Mechanical Power Engineering - Faculty of Engineering - Mansoura University
2Senior researcher, Agric. Eng. Res. Inst., A. R. C, Giza, P.0.256, Egypt
3Computers and Systems Department, Faculty of Engineering, Mansoura University, El-Mansoura 35516, Egypt
Abstract
The sun tracking became of high necessity for increasing the efficiency and reducing the cost of photovoltaic systems and solar concentrators. This system is used for maximizing the normal incident direct solar radiation on the surface of these devices. This is essential in solar water pumping for irrigation and power generation. In the present study, a new prototype şun tracker (heliostat) is designed, constructed and tested. This sun tracker tracks the sun on two axes and uses a real time control unit and hybrid stepper motors. The control unit uses a low cost microcontroller compared to the other controllers. The microcontroller provides a large number of input/output pins for controlling the hybrid stepper motors and the LCD screen. Also, its internal memory size and the processing power are high making it the most suitable device for solving solar energy equations in real time. The proposed sun tracker is seen to be simpler in operation and more reliable than the PLC, microprocessor and electro-optical controlled systems. Results show that this şun tracker has a good accuracy for tracking the sun and that the experimental data are closely fit the theoretical results. Hybrid stepper motors with their advantages and the control system are suitable for these applications. Thus, this sun tracker is also seen to be suitable for the photovoltaic panel used for solar pumping, power generation and the dish type solar concentrators.
Keywords
Design; construction; Real time; Two axes; Sun tracker; Hybrid stepper motors
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