基于日晷投影的小规模太阳能追踪系统设计  

作　　者：郭陟峰 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206

出　　处：《科学技术创新》2018年第16期24-26,共3页Scientific and Technological Innovation

摘　　要：现存的追踪装置主要服务于工业,多为大型太阳能发电厂所用,由于维护和使用成本较高,所以很难出现在小型家庭用户当中。为此,设计了本系统,在牺牲小部分追踪精度的情况下,大大提升了追光系统的抗干扰能力,同时结构轻巧,便于安装和维护。本系统基于日晷的投影方式,借助平行阳光对投影针的投影和光敏传感器,来标定太阳的当前方位。采用单片机控制两杆的方式对工作平面进行三维调向,改变了过去水平转动和俯仰转动的双轴设计,极大简化了阳光定向装置和平台控制装置的信号对接,提高了计算速度和调整精度。Existing solar tracking systems are mostly designed for industry, especially for solar power plants. Due to the high cost of the maintenance and the use, they are difficult to serve small family user. So a small-scale solar tracking system with strong anti-interference and simple installation is designed in the sacrifice of a little accuracy. This system is based on gnomonic projection which can judge the position of the sun by the projection of the gnomon and the photosensor. With two support rods controlled by the SCM, the surface will be able to change the directions without rotation shafts. The signal is easy to transmit between the detection and the control which speed up the calculation and the adjustment.

关 键 词：太阳能 小规模追光 日晷投影 无轴三维转向 抗干扰 

分 类 号：TK513.4[动力工程及工程热物理—热能工程]