摘要
鉴于目前对太阳能光伏发电技术的研究及LED照明技术的推广应用,文章设计了一种基于单片机的光伏路灯照明系统;该系统以ATmega128L单片机为控制核心,实现对蓄电池充放电和LED路灯照明的精确控制,保证光伏路灯照明系统正常工作;通过Sepic电路实现对蓄电池的最大功率充电,此外LED路灯亮度可根据实际环境由LED路灯驱动芯片PAM2842进行调节;实验表明,该系统提高太阳能电池板输出功率4.5W,具有能量转换效率高、稳定性好的优点。
Considering of solar photovoltaic technology research and LED lighting technology popularization and application at present. The paper designs a photovoltaic street lamp lighting system based on MCU. The system takes the ATmega128L type MCU as the kernel control chip. It accurately control the battery charging and LED lighting, which can ensure the system work normally. It achieves battery MPPT charging through Sepic ciruit. Therefore, LED brightness can be adjusted by driving chip PAM2842 according to practical environment. Experiments show that the system improves solar panels power 4. 5W, and has advantages of high energy conversion efficiency and good stability.
出处
《计算机测量与控制》
北大核心
2013年第6期1615-1617,1627,共4页
Computer Measurement &Control
