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2nd International Conference on Sustainable Energy Engineering and Application (ICSEEA)

作者： Mirdanies, Midriem Komp LIPI Indonesian Inst Sci Res Ctr Elect Power & Mechatron Bandung 40135 Indonesia

ISBN: (纸本)9781510804616

This paper describes the use of an astronomical algorithm for two degrees of freedom of solar tracking mechanism with the result that the expected solar thermal collector panels always leads to the sun and solar energy is absorbed optimally. The movement triggers of the sun tracking mechanism is an astronomical algorithm that generates the azimuth and altitude values based on latitude, longitude, and time. This system does not use any sensor so that is more economical and can be applied anywhere. Simulations have been made using the C programming language with Dev-C++ IDE to test the accuracy of the azimuth and elevation values generated by astronomical algorithm used, and compared with the value produced by the U.S. Naval Observatory and Geoscience Australia. The location used is LIPI Bandung with latitude 107 degrees 36'E and longitude 6 degrees 52'S at every hour from 06: 00 to 18: 00 on the first date of each month of 2013. Simulation results show that the value of the azimuth and elevation resulting approached two other reference values with maximum azimuth difference 0.51 degrees and the maximum altitude difference 0.49 degrees to data the U.S. Naval Observatory, and the maximum azimuth difference 0.52 degrees and the maximum altitude difference 0.50 degrees to the data Australia Geoscience. Based on this research, it is known that the azimuth and elevation values was generated by these algorithms can be applied to two degrees of freedom of solar tracking mechanism because its accuracy is close to two other reference values. (C) 2015 The Authors. Published by Elsevier Ltd.

关键词： two degrees of freedom of solar tracking mechanism astronomy algorithm azimuth altitude c programming language

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astronomy algorithm Simulation for Two Degrees of Freedom of Solar Tracking Mechanism Using Clanguage

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Energy Procedia 2015年 68卷 60-67页

作者： Midriem Mirdanies Research Center for Electrical Power and Mechatronics Indonesian Institute of Sciences Komp LIPI Gd. 20. Lt. 2 Bandung 40135 Indonesia

This paper describes the use of an astronomical algorithm for two degrees of freedom of solar tracking mechanism with the result that the expected solar thermal collector panels always leads to the sun and solar energy is absorbed optimally. The movement triggers of the sun tracking mechanism is an astronomical algorithm that generates the azimuth and altitude values based on latitude, longitude, and time. This system does not use any sensor so that is more economical and can be applied anywhere. Simulations have been made using the C programming language with Dev-C + + IDE to test the accuracy of the azimuth and elevation values generated by astronomical algorithm used, and compared with the value produced by the U.S. Naval Observatory and Geoscience Australia. The location used is LIPI Bandung with latitude 107̊36′E and longitude 6̊52′S at every hour from 06:00 to 18:00 on the first date of each month of 2013. Simulation results show that the value of the azimuth and elevation resulting approached two other reference values with maximum azimuth difference 0.51 degrees and the maximum altitude difference 0.49 degrees to data the U.S. Naval Observatory, and the maximum azimuth difference 0.52 degrees and the maximum altitude difference 0.50 degrees to the data Australia Geoscience. Based on this research, it is known that the azimuth and elevation values was generated by these algorithms can be applied to two degrees of freedom of solar tracking mechanism because its accuracy is close to two other reference values.

关键词： two degrees of freedom of solar tracking mechanism astronomy algorithm azimuth altitude c programming language

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High Precision Biaxial Solar Tracker

High Precision Biaxial Solar Tracker

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International Conference on Industrial Technology and Management Science(ITMS 2015)

作者： Z.Y.XIA X.Y.CHEN S.G.CHEN L.H.HU D.S.WU G.J.JIN Mechanical and Electronical Engineering College Fujian Agriculture and Forestry University

In this paper, a high precision biaxial solar tracker is designed, which is an application platform, can be used in solar photovoltaic projects and solar heat projects. Based on astronomy algorithm, we write a program in a Delta PLC to get the position of the sun by calculating its azimuth angle and altitude angle. Two DC motors is controlled by PLC to drive the solar tracker to rotate around both azimuth axis and altitude axis. Besides, three additional functions: hibernation, typhoon defender and snow cleaning, are designed to improve validity and reliability of the solar tracker. With Pro/E and ANSYS Workbench software, strength analysis in typhoon weather is made to assure the reliability of the solar tracker.

关键词： high precision solar tracker astronomy algorithm azimuth angle altitude angle

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