Two Axes Solar Tracker Based on Solar Maps, Controlled by a Low-Power Microcontroller

作     者：F. Duarte P.D. Gaspar L.C. Goncalves 

作者机构：Electromechanical Engineering Department Engineering Faculty University of Beira Interior Covilha 6201-001 Portugal 

出 版 物：《Journal of Energy and Power Engineering》 (能源与动力工程（美国大卫英文）)

年 卷 期：2011年第5卷第7期

页      面：671-676页

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 081105[工学-导航、制导与控制] 081001[工学-通信与信息系统] 081101[工学-控制理论与控制工程] 081002[工学-信号与信息处理] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程] 

主　　题：Two axis solar tracker photovoltaic energy electromechanical system solar maps low-power microcontroller. 

摘      要：There are actually several solutions for two axis solar tracking systems using electromechanical devices, in which a controller detects the Sun apparent position, and controls the position of the structure supporting the panels toward the sun by enabling the engines movement. This work studies the solution of two axis solar tracking system based on solar maps, which can predict the exact apparent position of the Sun, by the latitude＇s location, thereby avoiding the need to use sensors or guidance systems. To accomplish this, it is used a low-power microcontroller, suitably programmed, to control two electric motors to ensure that the panels supporting structure is always oriented towards the sun.