光伏组件最大功率点快速识别方法

Fast Identification Method for Photovoltaic Module Maximum Power Point

光伏组件最大功率发电是实现碳达峰和碳中和的关键技术之一,为了快速识别光伏组件最大功率点,提出了一种基于Lambert W函数的光伏最大功率点识别方法。通过对检测系统的分析,构建了实现光伏最大功率点检测结构;基于Boost变换器转换特性建立了光伏全阶段检测模型,给出了实现光伏组件全范围检测的工作条件;利用Lambert W函数推导出光伏最大功率点解析模型。实验表明,该方法可以快速识别光伏组件最大功率点,与NRM算法相比输出最大功率点功率提高了1.5%。

The maximum power generation of photovoltaic modules is one of the key technologies to achieve carbon peaking and carbon neutrality.In order to quickly identify the maximum power point of photovoltaic modules,a photovoltaic maximum power point identification method based on Lambert W function is proposed.First,through the analysis for the detection system,a con⁃struction for this detection is built.An operating condition based on a modeling is pointed out to make the maximum power point de⁃tection full-scope and the modeling is built from the transfer characteristics of Boost converter.An analysis modeling for the maxi⁃mum power point is given by using Lambert W function.The test shows that this method can solve the contradiction and the maxi⁃mum power point output increases 1.5%compared to the NRM algorithm.