摘要
为改善固定式安装的光伏组件发电效率受太阳高度角和方位角影响的问题,利用光电传感器采集光照度、MCU分析获得的光照度信号并实时控制光伏板的转动,使光伏组件始终处于太阳光垂直照射下,并在软件设计中有效地规避了跟踪失效的问题。试验结果表明,由MCU控制的光伏追日系统增加了光伏组件单位面积上的光照度,实现原理简单、跟踪精度高。
To improve generating efficiency of fixed photovoltaic module influenced by solar altitude and azimuth,photoelectric sensor is used to collect illuminance and the illuminance signal is analyzed with MCU to control the photovol-taic board movement in real-time,which made the photovoltaic module under the vertical illumination all the time.In soft-ware design terms,the tracking failure avoids effectively.The result shows that the MCU photovoltaic tracking system increases PV module illumination on unit area,and it has the advantage of simple implementation principle and high track-ing precision.
出处
《水电能源科学》
北大核心
2011年第2期144-145,186,共3页
Water Resources and Power
关键词
发电效率
光伏组件
MCU
追日系统
generating efficiency
photovoltaic module
MCU
tracking sun system
