光伏发电双轴自动跟踪控制系统的设计

太阳能光伏电池陈列的发电量与光线入射角角度有关，光线与光伏阵列平面垂直时发电量最大。采用太阳自动跟踪的方式，使太阳能电池板始终保持与太阳光垂直，可大大提高光伏阵列的发电量。采用光感跟踪与时间跟踪相结合的方法，设计了全天候太阳方位跟踪控制系统，系统功能包括检测、跟踪控制方式转换及双跟踪方式的控制。该双轴跟踪系统具有结构简单、稳定性好、精度高的特点，具有广阔的应用前景。

Design of Automatic Dual Axis Tracking Control System in PV

The generating capacity of the Solar Energy Photovoltaic Cell arrays is associated with the incidence angle of the sunlight. The power generation is the largest when rays being perpendicular to the planes of photovoltaic arrays. Adapting automatic tracking techniques could always make solar panels perpendicular to sunlight. So it has increased the generating capacity of the Solar Energy Photovoltaic Cell arrays greatly. A new tracking method which combined the photovoltaic tracking method and time tracking method was presented by this article and an all-weather control system for sun tracking was designed. The system includes the detect device, the switching control module and two-tracking control modules. The dual axis tracking system has many advantages, such as a simple structure, good stability, high accuracy, which is helpful to its spread and popularity in applied prosepct.