基于微控制器的光伏充放电控制器的设计

摘要

对一种以微控制器-ATmega48为核心的光伏充放电控制器进行了研究.该充放电控制器用于光伏发电系统中,是一种控制太阳能电池阵列对蓄电池充电以及蓄电池对负载放电两个过程的自动控制设备.阐述了光伏系统的充放电过程,设计了充放电和电压检测等电路.实验表明:控制器能够根据蓄电池的当前状态,优化充电过程,对蓄电池的寿命能起到很好的保护作用.%This paper introduces a photovoltaic charge and discharge controller , using the micro controller - Atmega 48 as the core. The charge and discharge controller is an automatic control equipment controlling the solar array to charge batteries and to supply power to the load for a photovoltaic power generation system. Decribe the charge - discharge process of the photovoltaic system, design the charge -discharge circuit and voltage detection circuit. The experiment results show that the controller can give a good protection to battery lifetime,according to the current state of the battery and optimizing the charging process.