小型风电系统蓄电池智能充电器的设计

在深入分析了小型风力发电系统对蓄电池的充电要求和蓄电池常规充电方式的基础上,设计了基于ATmega16和SG3525A的四段式智能充电器,其主电路采用推挽隔离变换结构,充电策略采用激活、恒流、恒压、涓流的四段式充电方法,实现了蓄电池在不同阶段下的充电要求。实验结果表明,该充电器能够适应风机宽范围的充电要求,而且可实现充电状态的实时监控和状态显示,并具有过压、过流保护功能。

Design of Intelligent Accumulator Charger for Wind Power System

With an in-depth analysis of the conventional battery charging method and technical requirements of lead-acid battery in small wind power system,a three-stage intelligent charger oriented based on SG3525A was designed.Its main circuit was the push-pull isolation convert structure and the charge strategy was the three-stage approach of constant current,constant voltage and trickle charge to achieve the different stages of battery charging requirements.The experiment results showed that the charger could adapt to a wide range voltage of charging requests and achieve real-time monitoring charge state and status display besides protecting over-voltage and over-current.