摘要
为提高太阳能的利用率,设计了一套以STC89C52单片机为控制核心的自动追光系统。系统采用光电追踪和视日运动轨迹追踪相结合的方法,通过阴晴检测电路判断晴天或阴天。晴天时利用光电传感器采集的光强偏差控制步进电机,实现光电追踪;阴天时采集时钟芯片信息利用Spencer算法计算当时当地的太阳高度角和方位角,驱动步进电机,实现视日运动轨迹追踪。实验表明,该追光系统能在不同天气状况下对太阳进行较准确追踪,能量接收效率明显提高,达到了充分利用太阳能的目的。
To improve the utilization of solar energy,STC89 C52 microcontroller as the core of the automatic tracking system was designed.The system adopted the combination method of photoelectric tracking and sun angle tracking,and judged the sunny or cloudy through the weather detection circuit.In sunny day,the photoelectric sensor was used to collect the light intensity deviation control stepper motor to achieve photoelectric tracking;In cloudy day,the clock chip information was collected using Spencer algorithm to calculate the local sun altitude angle and azimuth,the stepper motor was driven to achieve the sun angle tracking.The experimental results show that the solar tracking system can track the sun more accurately in different weather conditions,and the energy receiving efficiency is improved obviously,to achieve the full use of solar energy purposes.
作者
贾丹平
王阳
JIA Dan-ping, WANG Yang(School of Information Science and Engineering, Shenyang University of Technology, Shenyang 110870, Chin)
出处
《仪表技术与传感器》
CSCD
北大核心
2018年第5期78-82,共5页
Instrument Technique and Sensor
