基于LPC1343单片机太阳能控制器设计.doc

摘要 当今社会发展速度很快。对以石油、煤炭为主的能源过度利用，造成了极大的环境污染。石油、煤炭都是不可再生能源，过度利用将造成能源枯竭。能源缺乏将造成物价上涨、经济衰退、能源战争，进而引发一系列的社会问题、环境问题。在地球上所能利用的能量的98.98%最初都来自太阳能，以太阳能为首的清洁可再生能源有着极大的利用价值。目前光伏发电是太阳能利用的主要形式，许多国家都在做光伏发电的研究和推广光伏技术的使用。高转换效率的光伏电池也在研发之中，光伏技术也在不断地成熟，光伏发电的成本也在不断地降低。 太阳能控制器，全称太阳能充放电控制器，是光伏发电系统的核心部件之一。本文针对目前市场上大部分太阳能控制器对于蓄电池的保护不够充分，太阳能利用率低，控制器功耗和蓄电池自耗电较高的情况，设计一款性能稳定，简单易用，基于LPC1343单片机的太阳能控制器，实现利用太阳能电池组件对蓄电池充电和控制蓄电池对负载的供电，提高对蓄电池充电的效率，对蓄电池进行过充、过放、短路、过载等保护，延长蓄电池的使用寿命。 关键词：光伏电池 太阳能控制器 蓄电池 LPC1343 Abstract Nowaday, society develops very fast. The abusing of the dominated power souce by oil and coal caused enormous Environmental pollution. Oil and coal is Non-renewable power souce, Excessive use will result in energy depletion. Energy depletion will cause price rise、economic recession and energy war，and then the Series of social and Environmental problems. 98% of the energy can use on earth is primarily from solar energy. There is great worth in the Clean Renewable energy Led by the solar. Now, photovoltaic generation is the main form of the solar use. Many country do research about photovoltaic generation and promote PV technology. High conversion efficiency PV batteries are in studying. PV technology also continue to mature. PV battery costs are constantly lower. Solar controller, the full name is solar charge and discharge controller,is one of the core components of photovoltaic power generation system. Against the situations for PV controller currently on the market are almost like those, Inadequate for the protection of the lead-acid batteries 、low solar utilization rate、high power consumption, and the lead-acid battery’s high self power consumption. This article design a solar controller that performance is stable and use is easy, based on LPC1343 SCM, to achieve the charge for the lead-acid battery by using PV modules, the control to lead-acid battery for discharge, improving the efficiency of lead-acid battery charging，overcharge、over discharge、short circuit and overload