基于空气热力学混合驱动的光伏组件自动跟踪装置的设计与研究

DESIGN AND RESEARCH ON AUTOMATIC TRACKING DEVICE OF PV MODULES BASED ON AIR THERMODYNAMICS HYBRID DRIVE

针对光伏组件采用固定倾角安装方式时其光电转换效率不能达到最佳的情况,光伏电站多采用加装光伏组件自动跟踪装置的方式进行光伏组件倾角的调节,但目前这类自动跟踪装置多由单轴或双轴电机驱动,需要消耗较多的电能,且存在安装和调节不方便、成本较高、推广性差等缺点。基于此,本文提出了一种基于空气热力学混合驱动的光伏组件自动跟踪装置,该装置利用空气热力学原理,以光、气、热作为混合动力源,可实现太阳辐射强度高时的驱动零电能消耗。该装置采用双光感传感器模块设计,以适应不同太阳辐射强度条件下光伏组件的自动跟踪,且具有抵抗侧面光线干扰的功能。

In view of the fact that PV modules cannot achieve the best photoelectric conversion efficiency when they are installed at a fixed inclination angle,PV power stations are often equipped with PV module automatic tracking devices to adjust the inclination angle of PV modules,but at present such automatic tracking devices are mostly single-axis or dual-axis motor drive,it requires more power consumption,and has disadvantages such as inconvenient installation and adjustment,high cost,and poor promotion.Based on this,this paper proposes an automatic tracking device of PV modules based on air thermodynamics hybrid drive.This device uses light,air,and heat as the power source by using the principle of air thermodynamics to achieve drive zero electrical energy consumption when the solar radiation intensity is high.The device adopts a dual light sensor module design to adapt to the automatic tracking of PV modules under different solar radiation intensity conditions,and has the function of resisting the interference of side light.