摘要
分析了Buck电路和Boost电路在最大功率点跟踪电路中的缺点。针对离网型光伏发电系统,提出了一种基于PIC单片机控制带最大功率点跟踪的蓄电池脉冲充电电路。该拓扑结构中只含有一个储能元件,可降低变换器的体积和系统的损耗,从而提高光伏蓄电池的利用效率。试验结果表明,该系统达到了最大功率点跟踪功能和对蓄电池的脉冲充电。
The shortcomings of Buck and Boost circuits applied in the maximum power point tracking（MPPT） circuit were analyzed,and a battery pulse charging circuit controlled by PIC microcontroller for stand-alone photovoltaic power generation was proposed.The circuit has one energy storage element,which can greatly reduce the volume of converter and the power losses.The experimental results indicat that the system reaches the MPPT function and can charge the battery with pulse.
出处
《低压电器》
北大核心
2011年第18期24-26,35,共4页
Low Voltage Apparatus
关键词
脉冲充电系统
光伏蓄电池
最大功率点跟踪
PIC单片机
pulse charging system
photovoltaic-battery
maximum power point tracking（MPPT）
PIC microcontroller
