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为克服碟式太阳能间接跟踪光斑偏心问题,设计一种专门用于高强度光探测和光敏转换的太阳能跟踪传感器,对聚焦光斑进行直接跟踪。采用二级或者多级分隔的光导材料隔绝聚焦光斑的高温,光电传感器对比测量使聚焦光斑汇集到集热器中心,实现跟踪系统最大效率的利用太阳能。实验结果表明:传感器设计方法可行、可有效隔绝光斑的高温。通过Matlab分析每级光导材料光斑温度衰减系数为0.32,此传感器跟踪运行稳定,可提高跟踪精度。该研究为提高碟式太阳能自动跟踪精度提供一种方法。
In order to overcome the problem of indirect tracking spot eccentricity of dish solar energy, a solar tracking sensor specially designed for high-intensity light detection and photo-sensitive conversion is designed, and the focused spot is directly tracked. The use of two or more separate layers of photoconductive material to isolate the focal spot of the high temperature, photoelectric sensor contrast measurement so that the focus spot converges to the center of the collector, tracking system to achieve the maximum efficiency of the use of solar energy. The experimental results show that the sensor design method is feasible and can effectively block the high temperature of light spot. By Matlab, the temperature attenuation coefficient of each photoconductive material was 0.32. The tracking operation of the sensor was stable and the tracking accuracy could be improved. The research provides a method to improve the automatic tracking accuracy of dish solar energy.