基于模糊控制的光子辐射制冷功率测量系统  

Photonic Radiative Cooling Power Measurement System Based on Fuzzy Control

作　　者：周玉晟 朱虹雨 陈犇 陈嘉诚 詹耀辉 李孝峰[1,2] Zhou Yusheng;Zhu Hongyu;Chen Ben;Chen Jiacheng;Zhan Yaohui;Li Xiaofeng(School of Optoelectronic Science and Engineering,Soochow University,Suzhou 215006,Jiangsu,China;Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province,Key Lab of Modern Optical Technologies of Education Ministry of China,Suzhou 215006,Jiangsu,China)

机构地区：[1]苏州大学光电科学与工程学院,江苏苏州215006 [2]江苏省先进光学制造技术重点实验室,教育部现代光学技术重点实验室,江苏苏州215006

出　　处：《光学学报》2024年第2期170-179,共10页Acta Optica Sinica

基　　金：国家自然科学基金(62175174);江苏省自然科学基金(BK20221357)。

摘　　要：依据热平衡原理设计了以单片机为控制核心,DS18B20数字温度传感器和铂电阻PT100为检温元件,正温度系数(PTC)效应加热器为执行元件的温控及制冷功率测量系统。通过模糊PID(Proportional Integral Derivative)控制算法输出不同占空比的脉宽调制波,控制辐射冷却材料温度和环境温度保持一致性,同时利用3D打印工艺完成装置的搭建,最终测算出辐射制冷功率。实验结果表明,系统测量计算的辐射制冷功率与理论预测值接近,该系统可以有效满足多种辐射冷却材料的测量。Objective As a form of passive cooling,radiative cooling can reduce the temperature of objects below the ambient temperature without additional energy consumption,and has become a research hotspot in thermal management in recent years.Daytime radiative cooling has been achieved by radiating out heat through the atmospheric transparent window(ATW,8-13μm)and simultaneously reflecting incident sunlight to avoid heating,which has been employed in green buildings,solar cells,and other fields.Generally,the physical quantities that measure the cooling material performance are temperature difference and radiative cooling power.Compared to the variability value of temperature differences measured under different circumstances(e.g.,locations,atmospheric temperatures),the radiative cooling power is stable and can reflect the cooling performance more objectively.However,there are no specialized instruments measuring the radiative cooling power,especially those compatible with various materials with different cooling capabilities,which has become an obstacle to standardized radiative cooling evaluation.Therefore,we design a kind of measurement device for measuring radiative cooling power,and hope to provide a helpful tool for the material development and large-scale applications of radiative cooling technology.Methods According to the thermal balance principle,we design a cooling power measurement system consisting of a single-chip microcomputer as the control unit,a DS18B20 digital temperature sensor and a platinum resistance of PT100 as the temperature sensor,and a positive temperature coefficient heater as the executive source.The temperature sensors measure the ambient temperature and surface temperature of the sample to be tested and transfer the data to the controller in the form of SPI communication and 1-wire bus communication.Thus,the temperature differences and their changing rates can be obtained.In data processing,we adopt the idea of fuzzy control.First,we finish the value fuzzification about temperature differe

关 键 词：测量 辐射制冷 制冷功率 单片机 温度调控 模糊PID 

分 类 号：TB61[一般工业技术—制冷工程] TP273[自动化与计算机技术—检测技术与自动化装置]