微电网光伏逆变器的设计与分析

Design and Analysis of Micro-grid Photovoltaic Inverter

针对偏远地区以及东南沿海孤岛用电难问题,研究了并网、离网光伏逆变器储能系统的构成,设计了双向储能逆变器的控制模型和控制方法,最后通过仿真分析得出结论:离网时双向储能逆变器能正常工作,并且能实现并网、离网间的平滑切换.

According to the difficulty of electricity for remote areas and the southeast coastal islands, this paper studies the system structure of energy storage connected-off-grid photovoltaic inverter. The control mod- el and control method of bidirectional energy-storage inverter are designed. At last, the relevant conclusions are that the bidirectional energy-storage inverter can work normally under off-grid and the bidirectional energy- storage inverter, and can switch smoothly between connected-grid and off-grid given by analysis the simulation waveforms.