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
刘贤群 1蒋逢灵2
作者信息
- 1. 湖南铁路科技职业技术学院,湖南株洲 412006
- 2. 湖南铁路科技职业技术学院,湖南株洲 412006;湖南省高铁运行安全保障工程技术研究中心,湖南株洲 412006
- 折叠
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.
Abstract
In order to more effectively track the maximum power point of micro-inverter-based photovoltaic array cells,u-sing 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)con-trol strategy with variable step size disturbance observation method,and corresponding simulation models were construc-ted 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 dis-turbance observation method has the ability to quickly and accurately track maximum power point,effectively reducing os-cillations 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Key words
micro-inverter/photovoltaics/maximum power point tracking引用本文复制引用
出版年
2024
NETL
NSTL
万方数据