基于自适应面积比变步长光伏MPPT方法的研究  

Research on the Adaptive Area Ratio Variable Step Size Photovoltaic MPPT Method

作　　者：吴增强 WU Zengqiang(Shanghai Insiallation Engineering Group Co.,Ltd.,Shanghai 200080,China)

机构地区：[1]上海市安装工程集团有限公司,上海200080

出　　处：《照明工程学报》2024年第6期198-202,共5页China Illuminating Engineering Journal

摘　　要：对扰动观察法光伏最大功率跟踪方法进行研究,提出一种根据面积比的自适应变步长的最大功率跟踪方法,能够根据采样点数据组成的面积比来自动调节跟踪过程中的扰动步长,实现自适应调节扰动步长,从而可以更加准确的进行最大功率点跟踪,为了验证所提方法正确性,对比扰动观察法与自适应变步长的结果,对结果进行分析验证所提方法的正确性,且对比扰动观察法具有一定的优越性,即使外界条件持续变化,对比结果仍具有优势。This research focuses on perturb and observe(P&O)method for photovoltaic maximum power point tracking(MPPT).An adaptive variable step-size MPPT method based on the area ratio is proposed.This method automatically adjusts the perturbation step size during the tracking process according to the area ratio derived from the sampling point data,achieving adaptive adjustment to the perturbation step size.As a result,it can more accurately track the maximum power point.To verify the correctness of the proposed method,a comparison is made between the traditional P&O method and the adaptive variable step-size method.The result are analyzed to confirm the correctness of the proposed method.The comparison shows that the adaptive variable step-size method has certain advantages over the traditional P&O method,particularly in terms of maintaining performance even under changing external conditions.

关 键 词：光伏电池 面积比 自适应变步长 最大功率跟踪 

分 类 号：TM923[电气工程—电力电子与电力传动]