交错并联反激式微型光伏逆变器的最大功率跟踪技术

Research on Maximum Power Point Tracking for Micro Inverter with a Fly-back and Interleaved Topology

随着现代电力电子技术的发展,微型光伏逆变器将在智能建筑和分布式光伏扶贫工程中应用越来越多.文章针对交错并联反激式结构的微型光伏逆变器进行研究,在深入分析其主电路拓扑和工作原理的基础上,给出了基于扰动观察法的MPPT算法分析与设计.为进一步检验设计的有效性,在MATLLAB/SIMULINK中搭建了微型光伏逆变系统的仿真模型.仿真结果表明所提方案能够有效实现系统的最大功率跟踪.

With the development of modern power electronics technology,micro-PV inverters will be applied in intelligent buildings and distributed PV poverty alleviation projects.In this paper,the MPPT algorithm based on the improved perturbation observation method is analyzed and designed based on the analysis of the topology and working principle of the micro-PV inverter with staggered parallel flyback structure.To further test the effectiveness of the design,a simulation model of the micro-photovoltaic inverter system is built in MATLLAB/SIMULINK.The simulation results show that the proposed scheme can effectively achieve the maximum power tracking of the system.