基于非平衡电桥原理的太阳能双轴跟踪系统的设计

Design of Solar Energy Double Axis Tracking System Based on Unbalanced Bridge Principle

基于非平衡电桥原理,设计出一种可以自动跟踪光线的太阳能双轴跟踪设备。该设备利用光敏电阻阻值随着光照强度变化而改变这一特征,通过非平衡电桥输出大小和方向随光强变化而改变的电流。电流经过光电耦合器和三极管放大后,再通过继电器来控制两部相互独立的水平控制角和高度控制角电机的正反转,巧妙地实现了设备自动跟踪光信号的这一“智能化”功能,最终实现太阳能电池板始终垂直接收光线的目标。

Based on the principle of non-equilibrium bridge,we have designed a solar dual-axis tracker that can automatically track light.The device utilizes the resistance value along with the photoresistor changes with the change of the illumination intensity.The output current changes with the light intensity through the unbalanced bridge.After the current is amplified by optocoupler and triode,the relay is used to control the forward and reverse rotation of two independent horizontal control angle and height control angle motors.In this way,the device skillfully reaches the‘intelligent’function of automatic tracking of light signals,and finally achieves the goal of solar panels always receiving light vertically.