基于模型预测控制算法的太阳跟踪系统

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关键词：激光外差；太阳跟踪；模型预测控制；图像处理

中图分类号：O433.1；TK513.4文献标识码：A

doi：10.37188/OPE.20253309.1365 CSTR：32169.14.OPE.20253309.1365

Design of sun tracking system based on model predictive control algorithm

FANG Ruopeng 1，2 ，LI Renshi1， JIAO Ting¹，XU Zhenyu¹，DENG Hao 1 ， YAO Lu 1 ， HE Yabail*，KAN Ruifeng

（1.Hefei Institutes of Physical Science，Chinese Academy of Sciences，Hefei 23OO3l，China; 2.Science Island Branch，Graduate School ofUSTC，Hefei 23OO26，China） * Corresponding author，E-mail： kanruifeng@aiofm.ac.cn;yabaihe@hotmail.com

Abstract：A solar tracking system tailored for mobile platforms has been developed to fulfillthe require ment for high-precision solar position tracking in a vehicle-mounted laser heterodyne solar radiation spectrum detection system. This study transfers data processng tasks to an edge computing platform，significantly enhancing processing speed and ensuring rapid system response in dynamic environments. Concur rently，the integration of camera distortion correction and vision detection algorithms enables precise determination of the solar centroid position within the camera image and calculation of the angular offset. This angularoffset serves as the system model's state variable，and the introduction of a model predictive control algorithm facilitates optimal control of the atitude adjustment motor speed，thereby markedly improving tracking accuracy and stability.Experimental results demonstrate a system response delay of only 14.6 ms，with tracking accuracies of 0.13∘ and 0.04∘ along the X⋅ and Y -axes，respectively，when deployed on an onboard platform traveling at 15km/h . The findings confirm that the designed solar tracking system combines high precision with low latency，meeting the stringent demands of heterodyne measurement for precise solar position tracking on vehicle platforms.

Key words： laser heterodyne; solar tracking；model predictive control; image processing

1引言

激光外差光谱技术（LaserHeterodyneSpectroscopy，LHS）是当前用于测量温室气体柱浓度和廓线的重要技术手段[1-3]，由于兼顾高光谱分辨率和系统易集成等优点，已经成为与地基傅里叶变换光谱仪形成优势互补的测量方案。（剩余13837字）