基于方位检测的光伏双轴跟踪控制装置设计

为了充分利用太阳能资源,提高发电效率,研究设计了一种基于方位检测的太阳跟踪控制系统。该控制系统是以单片机为核心的检测控制电路,包括单片机控制电路、方位检测电路、电动机驱动电路、仰角检测电路、外设电路和电源电路6个部分。系统通过程序控制,实现了光伏阵列朝向的定时跟踪。所设计的光伏双轴跟踪控制装置具有结构简单、运行可靠、跟踪精度高、成本低的特点,为提高光伏发电系统的效益探索了一条新路。

Design of dual-axis tracking control of photovoltaic based on position detection

As an ideal renewable energy and in china,the development and utilization of solar energy is taken as a major national sustainable development strategy in China.Theoretical analysis shows that： compared with the fixed-point solar power device,tracking device can improve the energy receiving rate by 35%.A sun tracking and controlling system is designed based on azimuth detection.The controlling system is a detection and control circuit with the core of single chip computer.The system includes position detection circuit,motor drive circuits,elevation detection circuit and power circuit.Using program control,the system achieved time tracking toward photovoltaic array.The system of dual-axis solar tracking control of photovoltaic has a simple structure,reliable operation,high tracking accuracy,and low cost.It explores a new path to improve the efficiency of photovoltaic power generation system.