摘要
提出了一种基于Buck三电平变换器的光伏储能系统及最大功率点跟踪(MPPT)控制策略,分析了Buck三电平变换器工作原理,建立了数学模型并进行小信号模型分析,证明了控制策略的可行性。为确保两只分压电容电压均衡,讨论了其分压电容均压问题并设计了控制环路,最后进行了实验验证。
It proposes a kind of photovohaic storage system based on Buck three-level converter and the maximumpower point tracking（MPPT） control strategy.It also analysises the working principle of Buck three-level converter,buihsthe mathematical model and analysises the small signal model, proves the feasibility of the control strategy.To ensurethe balance between two divider capacitor voltage, it discusses the divider capacitor voltage balancing problem, designsthe control loop and experimental verification.
出处
《电力电子技术》
CSCD
北大核心
2015年第7期17-20,共4页
Power Electronics
关键词
变换器
光伏储能系统
最大功率点跟踪
converter
photovohaic storage system
maximum power point tracking
