一种基于计算机控制的抛物面型聚光系统的自动调校方法  

A COMPUTER-BASED PARABOLIC DISH CONCENTRATOR ALIGNMENT METHOD

作　　者：许金山[1] 李松[1] 帅永辉[2] 万斌 

机构地区：[1]浙江工业大学计算机科学与技术学院,杭州310023 [2]衢州学院电气与信息工程学院,衢州324000 [3]杭州聚达能源科技有限公司,杭州310021

出　　处：《太阳能学报》2017年第7期1741-1748,共8页Acta Energiae Solaris Sinica

基　　金：浙江省自然科学基金(LQ14A050002)

摘　　要：利用单块镜面的等腰三角支撑结构,从数学模型出发,分析镜面支撑杆的长度变化与接收屏上光斑位置的关系。研究发现支杆的运动和反射光斑运动有近似线性关系。当支撑杆P1和P2等量相对和相向运动时,光斑在接收屏上的轨迹是两条近似相互垂直的直线,由此光斑在屏上的任意位置可通过这两个方向的运动组合得以实现。结合图像处理技术和自动控制技术,将此算法设计成一套基于计算机控制的闭环自动调光系统并将其用于实验分析。实验结果可验证理论的正确性,与传统的"Color Look-Back"和"AIMFAST"方法相比,新系统不但保持了传统方法的优点,并且在场地限制方面表现出很大的优势。High capacity solar Stirling system is one of the hot research areas of renewable clean energy. Its performance highly relies on a high-intensity even-distributed temperature source obtained from gathering huge area of sun radiation. Problem has been raised on how to adjust mirrors for concentrating such scattered radiation. This article focuses on providing a practical method. By building a mathematical model based on the isosceles triangle configuration of supporting structure of each mirror, we found an approximated linear relation between the displacement of supporting structure and that of the resulted movement of the reflected light spot on the receiver plane. Based on this, we proposed an automatic dish mirror alignment method by combining image processing and automation technology. Comparing to color look-back and AIMFAST, testing results from this method show better accuracy and more advantages.

关 键 词：太阳能 聚光热发电 碟式斯特林系统 镜面校正 闭环系统 

分 类 号：TK513.1[动力工程及工程热物理—热能工程]