用于太阳能集热装置的太阳跟踪传感器  

The Sun-Tracking Sensor Used in Solar Heat Collection Device

作　　者：张四全[1] 任德志[1] 徐莉萍[1] 李楠[1] 

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003

出　　处：《电测与仪表》2010年第1期26-29,共4页Electrical Measurement & Instrumentation

摘　　要：太阳跟踪系统精度偏低对太阳能热发电的效率的提高有一定的影响,如何提高跟踪系统的精度也是研究太阳能利用的一个重要方面。本文介绍了一种新的太阳跟踪传感器的设计方法,把太阳位置的偏差信号通过数模转换转化成数字量作为控制信号来精确控制步进电机调整传感器位置,与以往运用简单的电平信号来判断太阳位置的方法相比,能够实现高精度测量,也有利于把信号的传输。实验表明,测量精度能够满足太阳跟踪系统的需要,该设计具有一定的实用价值。Tracking accuracy of the sun-tracking system has some influence on improving efficiency of solar thermal power generation. It is an important aspect of study on solar heat utilization technology that how to improve the precision of the sun tracing system. This paper introduces a kind of new sun-tracking sensor design method, which converts deviation signal of solar position into digital signal by modulus conversion chip. This digital signal is used to control the stepping motor to adjust the sensor position. Compared with some previous methods which determine the sun position by a high or low level signal, this method can realize good measuring accuracy and be beneficial to signal transmission. Test shows that measuring accuracy meets the sun-tracking system needs, and has high practical value.

关 键 词：太阳跟踪 数模转换 传感器 高精度 

分 类 号：TM933[电气工程—电力电子与电力传动]