Harmonic resonance characteristics of grid-connected system based on sensitivity theory

被引：0
|
作者：
Wu J. [1 ]
Liu Z.-D. [1 ]
Wang C. [1 ]
Zhao J.-Q. [1 ]
You Y.-F. [1 ]
Xu D.-G. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2018年 / 22卷 / 12期
关键词：
Grid-connected system; Participation of the network component; Resonance characteristic; Resonant circuit; Sensitivity analysis;
D O I：
10.15938/j.emc.2018.12.002
中图分类号：
学科分类号：
摘要：
In order to determine the network components which contributes significantly to a harmonic resonance phenomenon and composition of the resonant circuit, the sensitivity theory was applied to resonance characteristic analysis. Based on the modal analysis, the theory of sensitivity was applied to derive the solving formula for the sensitivities of each network component parameter under resonance circumstance, which reflects the participation of the network component. The solving formula was derived for parallel harmonic resonance and series harmonic resonance respectively. This solving formula was adapted to the 4-node grid-connected test system and the analysis result was obtained. Besides, the analysis results indicate that for certain frequency, the participation of parallel resonance and series resonance are not all the same. Finally, the results of simulation and experiment prove that the solving formula for sensitivity is feasible for grid-connected system. © 2018, Harbin University of Science and Technology Publication. All right reserved.
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页码：11 / 21and29
页数：2118
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