A PV tracker system is a solution one of those methods able to increase the PV power generation. Theoretical, a PV tracker system with two-axis, can increase the overall solar energy capture about 45%, compared to a fixed PV module tilted at an angle equal to the local latitude. An one-axis tracking system, the increase is aproximately 32%. In this paper, we design and implement a two-axis tracking system of photovoltaic (PV) systems, who follows the maximum power point (MPP) using a programmable circuit XILINX type Complex Programmable Logic Device- CPLD and Xilinx ISE software. Thus, PV module will reach its MPP in relation date and time of the day. The test bed relies on an algorithm integrated in the XILINX who has as inputs: date, location’s latitude and longitude, the standard longitude (related to the location’s position in relation with Greenwich), and the number the positions of the Sun's path. To establish the position of the panel in a time of day value is determined by the following calculations: the angle of the day, correction factor of Earth's orbit, the solar declination angle, the equation of time in minutes, eastern time using latitude angle, the number of hours the Sun shines using angle eastern time, time the Sun sets, vectors containing the coordinates of the positions of the Sun (in this case 10 positions) during the day and azimuth angle.
Renewable sources, PV systems, PV Tracker, programmable circuit, Complex Programmable Logic Device
 World Energy Council, World Energy Resources, 2013 Survey, Ed. Regency House, London, ISBN: 978-0-946121-29-8, 2013
 Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions, Renewable Energy: a major player in the European energy market, http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri= CELEX:52012DC0271:EN:NOT
 Lee C.Y., Chou P.C., Chiang C.M., Lin C.F., Sun Tracking Systems: A Review, Sensors, Vol. 9(05), pp. 3875-3890, 2009, doi:10.3390/s90503875
 Woodbank Communications, Battery and Energy Technologies, Solar Power (Technology and Economics), http://www.mpoweruk.com/solar_power.htm, Retrieved 18.01.2016
 Oprea A., Dragomir F., Positioning a PV panel on a rotary axis after maximum light, Scientific Bulletin of Electrical Engineering Faculty, Year 13, nr. 1 (21), Pages: 14-18, 2013
 Dragomir F., Iliescu S.St., Modelarea si simularea retelelor de joasa tensiune cu producere distribuita din surse regenerabile de energie, Ed. MatrixRom, Bucuresti, ISBN 978-606-25-0019-1, 2013
 Xilinx Inc., CPLD. What is a CPLD?, http://www.xilinx.com/cpld, Retrieved 11.12.2015
Cite this paper
Florin Dragomir, Otilia Elena Dragomir. (2017) Optimal Embedded System for Two-Axis Tracking PV Panels. International Journal of Renewable Energy Sources, 2, 69-74
Copyright © 2017 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0