Input Impedance Modeling and Analysis for a Three-Phase Voltage Source Converter with DC-link Voltage Control
作者： Yi Tang , Li Zhang , Haoxin Yang
DOI: 10.1109/IPEMC-ECCEASIA48364.2020.9367697
关键词:
摘要: Nowadays, power electronics-based renewable energy sources gradually replace conventional fossil fuel-based generations. Therefore, to quantitatively analyze the complex grid-converter interactions brought by this ongoing global grid transformation, impedance-based methods have been found increasingly accepted and adopted in recent years. With help of harmonic linearization, paper, input impedance a grid-connected three-phase voltage source converter with dc-link control is investigated. The derived expressions consider dynamics regulation, operation modes, PLL dynamics. Additionally, frequency coupling effects are also effectively described. At last, point-by-point scanning conducted Matlab/Simulink, whose results consistent theoretical analysis.
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