微型逆变器电池最大功率点跟踪控制策略  

Cell Maximum Power Point Tracking Control Strategy for Micro-inverter-based Photovoltaics

作　　者：刘贤群 蒋逢灵[1,2] LIU Xianqun;JIANG Fengling(Hunan Vocational College of Railway Technology,Zhuzhou 412006,China;Hunan Highspeed Railway Engineering and Technology Research Center for Operating Safety,Zhuzhou 412006,China)

机构地区：[1]湖南铁路科技职业技术学院,湖南株洲412006 [2]湖南省高铁运行安全保障工程技术研究中心,湖南株洲412006

出　　处：《电工技术》2024年第18期19-22,共4页Electric Engineering

基　　金：湖南省自然科学基金资助项目“基于量子混沌密钥加密改善铁路通信信号安全性研究”(编号2022JJ60009)。

摘　　要：为了更有效地跟踪微型逆变器光伏阵列电池的最大功率点,借助MATLAB软件,构建了光伏阵列电池的仿真模型,通过仿真得出光伏阵列电池的P-V曲线,验证了仿真模型的可行性。设计了一种基于改进型变步长扰动观察法的最大功率点跟踪(MPPT)控制策略,在MATLAB软件中构建了相应仿真模型,并对3种不同扰动观察法进行了仿真分析。通过仿真实验可知,在不同光照强度下,改进型变步长扰动观察法具备快速且准确跟踪最大功率点的能力,有效减少在最大功率点附近的振荡,并展现出良好的稳态效果。In order to more effectively track the maximum power point of micro-inverter-based photovoltaic array cells,using MATLAB software,a simulation model was constructed,through which the P-V curve of photovoltaic array cells was obtained and the feasibility of the simulation was verified.An improved maximum power point tracking(MPPT)control strategy with variable step size disturbance observation method,and corresponding simulation models were constructed in MATLAB software,and simulation analysis was conducted on three different disturbance observation methods.Through simulation experiments,it was concluded that,under different light intensities,the improved variable step disturbance observation method has the ability to quickly and accurately track maximum power point,effectively reducing oscillations near the maximum power point,and demonstrate good steady-state effects.

关 键 词：微型逆变器 光伏电池 最大功率点跟踪 

分 类 号：TM464[电气工程—电器]