基于最大功率点跟踪技术的太阳能路灯控制系统

Solar Street Lamp Control System Based on Maximum Power Point Tracking Technology

太阳能路灯以太阳光为能源，它安全、节能且无污染，也不需要铺设复杂的管线。白天利用太阳光给蓄电池充电，而晚上蓄电池则为路灯提供电能。路灯的开／1闭过程采用光电控制方式。该系统采用了最大功率点跟踪（Maximum Power Point Tracking，MPPT）技术，以便最大程度地接受太阳能，提高太阳能光伏电池的效率，并降低路灯系统的成本。最大功率点跟踪系统是一种通过控制目光跟踪器的伺服（或步进）驱动机构来调节光伏阵列的受光角度，使光伏板能够输出更多电能的自动化控制系统。

The solar street lamp feeds on sunlight; it is of safety, energy conservation and non-pollution, and also with no need for laying complex pipelines. The storage batteries to be charged by making use of sunlight in daytime and the storage batteries supply the electric energy for the street lamp in night. The photoelectric control mode is applied to control the switch on and switch off process of the street lamps. For the purpose of farthest colleting solar energy, enhancing efficiency of solar photovohaie cells and also reducing cost of street lamp system, the maximum power point tracking （MPPT） technology is used in this system. The MPPT system is a automation control system of which regulating sunlight receiving angle of photovohaie array by means of controlling servo（or stepping） mechanism of sunlight tracker to enable photovohaic panel to output more electric energy.