摘要
为了进一步提高太阳能光热转换效率,设计了一种用于槽式太阳能集热装置双轴自动跟踪太阳的日跟踪器。该跟踪器以视日运动轨迹跟踪为主,当太阳辐照度较强时,由光电传感器进行误差校正,使聚光器始终正对太阳,避免阴天或多云天气对跟踪的影响。理论分析表明,该跟踪器可提高能量接收率,便于自动控制。
In order to further improve the efficiency of photothermal conversion of solar power, the double-shaft automatic solar tracker has been designed for trough solar heat collector. The tracker is mainly based on sun motion trajectory, when solar irradiance is strong, the error is corrected by photoelectric sensor, thus the solar-beam condenser is always facing the sun; this may avoid the influence to tracking when the weather is cloudy or overcast. The theoretical analysis shows that the energy acceptance rate can be enhanced by using this tracker for easily implementing automatic control.
出处
《自动化仪表》
CAS
北大核心
2013年第9期56-59,共4页
Process Automation Instrumentation
关键词
光热转换
光电传感器
单片机
模数转换电路
步进电机
Photothermal conversion Photoelectric sensor Single-chip microcomputer Analog to digital conversion circuit Stepper motor
