Series-parallel Resonance Analysis of Multi-inverter System Based on Modal Analysis

被引：1
|
作者：
Li Q. [1 ]
Sun P. [1 ]
Dong G. [2 ]
Chen Y. [2 ]
机构：
[1] State Key Laboratory of Power Transmission Equipment Technology, Chongqing University, Shapingba District, Chongqing
[2] State Grid Chongqing Electric Power Research Institute, Yubei District, Chongqing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2024年 / 44卷 / 13期
关键词：
modal analysis; multi-inverter; resonance identification; resonance type; series-parallel resonance;
D O I：
10.13334/j.0258-8013.pcsee.230450
中图分类号：
学科分类号：
摘要：
The resonance analysis method based on modal analysis can obtain accurate resonance positioning of a multi-inverter system, but it has shortcomings in the identification of resonance types. In this paper, a resonance identification method based on modal analysis and participation factor calculation is proposed for multi-inverter systems. A Norton equivalent model of the inverter with active damping of the capacitance current is established and the line impedance is considered. The result difference between series and parallel resonance modal analysis is analyzed when the inverter combination changes. The characteristics of different types of resonances are obtained by classifying the resonance types. A specific modal analysis method is selected for each type of resonance, and the type of resonance is identified by the performance of the participation factor. Finally, a simulation circuit model and an experimental platform are built to verify the correctness of the conclusions. © 2024 Chinese Society for Electrical Engineering. All rights reserved.
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页码：5269 / 5280
页数：11
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