机械振荡条件下微功率光伏电池板的输出特性研究  

Output Characteristics of Micro Photovoltaic Panels under Mechanical Oscillation Conditions

作　　者：陶鹏[1] 吴义鹏[1] 裴万鹏 虞丽塬 TAO Peng;WU Yi-peng;PEI Wan-peng;YU Li-yuan(State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210006,China)

机构地区：[1]南京航空航天大学机械结构力学及控制国家重点实验室,南京210016

出　　处：《科学技术与工程》2023年第16期6937-6944,共8页Science Technology and Engineering

基　　金：南京航空航天大学前瞻布局科研专项资金;中央高校基本科研业务费(NS2021006)。

摘　　要：漂浮式光伏发电具有不占耕地、温升效应低、防止水过量蒸发等优势,正逐渐受到人们的青睐。然而水面起伏波动导致光伏电池板产生的机械振动,会使其输出电压和电流产生低频振荡,发电品质急剧恶化。选择了一微功率光伏电池板,对其在典型天气下的动、静态输出特性进行研究,在此基础上搭建了光伏发电的Simulink仿真模型,仿真得出了动态条件下的光伏电池的功率-电压(P-U)和电流-电压(I-U)特性曲线,探究了光伏电池板机械振荡角度和频率变化下输出功率极值点的变化情况。研究结果表明,动态条件下光伏电池板的P-U特性曲线会出现多个局部极值点,且电池板振荡角度对功率极值点的影响更大,为后续漂浮式光伏发电的最大功率点跟踪算法的研究提供了更为直观的数据支撑。Floating photovoltaic power generation has many advantages,it does not occupy arable land,has low temperature and prevents excessive evaporation of water,etc.As a result,it becomes more and more popular among people.However,due to the mechanical vibration of the photovoltaic panel caused by the fluctuation of the water surface,low-frequency oscillation of its output voltage and current will occur and the performance of power generation will deteriorate sharply.A micro-power photovoltaic panel was selected and the dynamic and static output characteristics under typical weathers were studied.Then,a Simulink simulation model of photovoltaic power generation was built based on this to get the power-voltage(P-U)and current-voltage(I-U)curves under dynamic conditions.The change situation of output power extreme points under the mechanical oscillation angle and frequency of photovoltaic panels was studied.Results show that there will be multiple local extreme points in the P-U curve of photovoltaic panels under dynamic conditions and the panel oscillation angle has a greater impact on the power extreme points.It provides more visual data support for the research on maximum power point tracking algorithms of subsequent floating photovoltaic power generation.

关 键 词：光伏发电 机械振荡 发电品质 SIMULINK 最大功率点 

分 类 号：TM914.4[电气工程—电力电子与电力传动]