1、 I 光伏电源在照明路灯中的应用 摘要 能源是国民经济发展的重要基础之一,随着国民经济的发展,能源的缺口增 大,能源安全及能源在国民经济中的地位越显突出。能源问题不仅表现在常规能 源的匮乏不足, 更重要的是化石能源的开发利用带来的一系列问题, 如环境污染, 温室效应等,都与化石燃料的燃烧有关。因此,人类要解决上述能源问题,实现 可持续发展,只能依靠科技进步,大规模地开发利用可再生洁净能源。太阳能光 伏发电是新能源和可再生能源的重要组成部分, 太阳能发电在路灯系统中的应用 也日趋完善 1。 本设计就是在这样的背景下, 完成了一种以单片机为核心的光伏电源照明路 灯控制系统,该控制器通过对蓄电池电压
2、、充电电流等参数的检测判断,控制开 关管的关断,来实现充放电控制和保护功能,最终实现照明系统的自动开关。文 中介绍了系统的硬件和软件的设计,采用 PWM 技术对蓄电池进行充电管理,保 证蓄电池的正常工作,实现 LED 路灯的打开与关闭。与以往的控制器相比,此 控制器成本低,可靠性高。 关键词:光伏发电 太阳能电池板 蓄电池 控制器 LED II Photovoltaic Power for Lighting Street Lamps ABSTRACT Energy is the important basis of the development of national economy, wi
3、th the development of the national economy, the energy gap increases, energy security and energy in the position in national economy is more prominent. The energy problem not only in conventional energy deficiency, is more important than fossil energy development and utilization has brought a series
4、 of problems, such as environmental pollution, greenhouse effect and the burning of fossil fuels for. Therefore, human beings to solve the energy problem, implementation can develop continuously, rely on progress of science and technology, large-scale development and utilization of renewable clean energy. Solar energy is a new energy and an important part of renewable energy, solar power in the street lamp system application has become more and more perfect. This design is in such a backg