Analysis of harmonic interaction between multi-paralleled invertersand grid in microgrid

被引：0
|
作者：
Zheng H. [1 ]
Zhang H. [1 ]
Xiao X. [2 ]
Zhi N. [1 ]
Li N. [1 ]
机构：
[1] School of Automation and Information Engineering, Xi'an University of Technology, Xi'an, 710048, Shaanxi Province
[2] State Key Lab of Control and Simulation of Power Systems and Generation Equipments, Dept. of Electrical Engineering, Tsinghua University, Haidian District, Beijing
来源：
Zhang, Hui (zhangh@xaut.edu.cn) | 1600年 / Power System Technology Press卷 / 40期
基金：
中国国家自然科学基金;
关键词：
Harmonic interaction; Inverter outputimpedance; Microgrid; Resonance frequency; Structure of paralleled inverters;
D O I：
10.13335/j.1000-3673.pst.2016.08.039
中图分类号：
学科分类号：
摘要：
Aiming at problems of harmonic interaction between multi-paralleled inverters and power grid in microgrid, single grid-connected inverter impedance is modeled and harmonic interaction under grid impedanceinfluence is analyzed. For multi-paralleled grid-connected inverters, paralleled inverter structures of stack and binary treesare identified, and impedance expressions of these structures are derived. Impedances of stack structure under inverter numberinfluence and binary tree structure under inverter distributioninfluence in right and left tree are analyzed. Based on these works, current transfer function in each branch to harmonic source is derived and used to analyze current resonance frequency in each branch. Finally, theoretical analysis is verified with simulation. © 2016, Power System Technology Press. All right reserved.
引用
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页码：2518 / 2524
页数：6
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