光伏并网逆变器滤波接口电路模型及参数优化设计

Filter interface circuit model and parameter optimization design for photovoltaic grid inverter

光伏并网发电系统的并网滤波接口电路的分析与优化设计是提高系统运行稳定性与并网电能质量的重要举措,本文分别在ABC坐标下和αβ坐标系下对三相LCL滤波接口电路进行建模分析,根据工程应用特点提出了一种参数优化设计方法,各型号滤波电路频率特性对比仿真分析证明了所提方法的有效性。

Photovoltaic grid power system filter interface circuit analysis and optimization design is important measure to improve the system stability and grid power quality.This paper analyzes the three-phase LCL filter interface circuit model respectively on ABC coordinates and αβ coordinates,and puts forward a kind of parameters optimization design method based on engineering application.The simulation contrast analysis for every type filter circuit frequency characteristic show that the effectiveness of the proposed method in this paper.