LC Filter Parameters Design Method Based on Harmonic Contents Analysis for Dual-Mode Single-Phase Inverter

Two-stage single-phase inverter using dual-mode control can match wide input voltage variation range and increase efficiency. That is studied by many researchers. In addition, using dual-mode control can improve the line-to-line output voltage waveform to be more easily filtered into sine wave. Thus...

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Bibliographic Details
Published inIEEE transactions on power electronics Vol. 39; no. 4; pp. 4438 - 4449
Main Authors Kang, Di, Wang, Hongliang, Deng, Xiaojun, Jiang, Yang, Si, Yibo, Zhu, Xiaonan, Yue, Xiumei
Format Journal Article
LanguageEnglish
Published New York IEEE 01.04.2024
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
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Capacitors
Design methodology
Design parameters
Design techniques
Dual-mode control
Electric potential
Inductors
Inverters
Low-pass filters
Mathematical analysis
Power harmonic filters
Sine waves
single-phase inverter
two-stage control
Voltage
Waveforms
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Summary:Two-stage single-phase inverter using dual-mode control can match wide input voltage variation range and increase efficiency. That is studied by many researchers. In addition, using dual-mode control can improve the line-to-line output voltage waveform to be more easily filtered into sine wave. Thus, the traditional method to determine the LC filter parameters is unreasonable and will cause over filtering. The redundant design of filter will bring unnecessary volume, weight and loss on inductor and capacitor of the inverter, while decrease the power density. To solve this issue, this article derives the line-to-line output voltage harmonic components calculation formulas for the conventional two-stage inverter and the dual-mode inverter by using double Fourier integral analysis. By comparing the harmonic components calculation results around switching frequency, a new LC filter parameters design method for dual-mode inverter is proposed. Through the proposed method, the LC filter parameters are declined by 50%, which significantly reduces the volume, weight and cost of the inverter under other conditions of constant performance. Calculation and experimental results based on a 1 kW prototype verify the validity of the proposed method.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2023.3347474