摘要
为了提高线性菲涅尔式聚光镜场的跟踪控制精度,本文基于PLC研制了原理样机模型,对太阳进行实时跟踪。基于光控和程控相结合,对天气的阴晴判断提出了一种基于模糊识别原理的全天候太阳自动跟踪方法,在Matlab中建立了阴晴模糊识别系统,然后通过高精度太阳位置算法,实现对聚光镜场的高精度和低延迟的跟踪控制目标。结果表明:通过误差分析法计算并比较跟踪目标角度计算结果与德国弗朗霍夫研究所提供的目标角度计算结果的理论值得出跟踪绝对误差在±0.455˚以内,具有较高的实用性和广阔的发展前景。
In order to improve the tracking control accuracy of linear Fresnel-type concentrating mirror field, this paper develops a principle prototype model based on PLC to track the sun in real-time. Based on the combination of optical control and program control, an all-weather automatic sun tracking method based on the fuzzy recognition principle is proposed for the cloudy and sunny judgment of weather, and a fuzzy recognition system for cloudy and sunny is established in Matlab, and then the high-precision sun position algorithm is used to achieve a high-precision and low-delay tracking control target for the spotting mirror field. The results show that: The theoretical value of the tracking target angle calculation results calculated by the error analysis method and compared with the target angle calculation results provided by the Fraunhofer Institute in Germany is within ±0.455˚ of the absolute tracking error, which has high practicality and broad development prospects.
出处
《建模与仿真》
2022年第3期744-754,共11页
Modeling and Simulation
