摘要
本文以光伏电池元双二极管模型为基础,通过Matlab/Simulink工具对部分遮挡条件下的光伏系统的P-V特征曲线进行了仿真研究。利用该光伏电池模型对串联光伏系统的集中式MPPT架构和分布式MPPT架构进行了仿真,通过仿真结果可知输出的P-V特征曲线呈现多个峰值,传统的集中式MPPT架构失效,而新型的分布式MPPT架构在部分遮挡条件下能够更好地实现光伏系统的功率优化。
This paper utilizes Matlab/Simulink tool to simulate and study partially shaded photovoltaic system based on photovol- taic cell two-diode model. By using this model, PV centralized MPPT architecture and distributed MPPT architecture are simulated. Simulation results demonstrate that output P-V characteristic curves of partially shaded photovoltaic system render multiple peaks, so traditional centralized MPPT architecture failed. While the new distributed MPPT architecture can achieve power optimization of partially shaded photovoltaic system better.
出处
《自动化技术与应用》
2013年第5期53-56,共4页
Techniques of Automation and Applications
