集中式与集散式光伏发电系统MPPT的仿真与对比

Simulation and Comparison of Centralized and Distributed Photovoltaic Power Generation System on MPPT

光伏组件由于受到地形分布不均匀、组件老化衰减等因素的影响,导致失配损失问题日益突出。对于大型地面与山地电站,为了解决这类问题,采用逆变器的多路最大功率跟踪（MPPT）技术必将成为趋势。本文利用Simulink进行光伏发电系统仿真,对集散式与传统集中式光伏发电系统进行了对比,验证了集散式光伏发电系统在MPPT效率的优越性。

Due to the uneven distribution of terrain and aging of photovoltaicmodules, the mismatch loss problem of PV modules has became increasingly prominent. For large ground and mountain power stations, in order to solve these problems, the multi-channel maximum power point tracking（MPPT） technology of inverter will become an inevitable trend. In this paper, Simulink is used to simulate the photovoltaic power generation system,and the comparison between the distributed and the traditional centralized is carried out to verify the superiority of the distributed MPPT efficiency.