摘要
为了改善固定式安装的光伏组件发电受太阳高度角和方位角的变化导致太阳能利用效率低的问题,设计一款基于单片机的光伏追日系统,系统在硬件上由控制模块、信号采集模块、命令执行模块、光伏电池板以及电源组成,在软件上采用单片机控制技术,通过步进电机驱动太阳能电池板时刻正对太阳,以达到太阳能利用率最大化。经测试,基于单片机的光伏追日系统能够根据光照度自动调整转角,增加光伏电池板的转换效率,步进电机转速和系统修正精度符合设计预期。
In allusion to the low solar energy utilization efficiency caused by the change of solar altitude angle and azimuth angle,which exists in the fixed installed photovoltaic module power generation,a photovoltaic solar tracker system based on microprogrammed control unit(MCU)is designed.The hardware of the system is composed of control module,signal acquisition module,command execution module,photovoltaic panel and power supply module.In the software,the single⁃chip microcomputer control technology is adopted,and the solar panel is driven by means of the stepper motor to face the sun at all times,so as to maximize the utility ratio of solar energy.The testing results show that the photovoltaic solar tracker system based on MCU can automatically adjust the rotation angle according to the light intensity,and increase the conversion efficiency of the photovoltaic panels.The speed of stepping motor and the correction accuracy of the system meet the design expectation.
作者
赵永鑫
黄韬
陈卫
唐琳
ZHAO Yongxin;HUANG Tao;CHEN Wei;TANG Lin(School of Information Science and Engineering,Chengdu University,Chengdu 610106,China)
出处
《现代电子技术》
2021年第6期125-128,共4页
Modern Electronics Technique
基金
国家自然科学基金资助课题(61601063)
成都大学2019年本科教育教学改革项目(cdjgb2019026)。
关键词
光伏追日
单片机
自动跟踪
太阳能电池板
系统设计
系统调试
photovoltaic solar tracking
MCU
automatic tracking
solar panel
system design
system debugging
