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Title: Small-signal modeling for phase-shift controlled resonant converters
Authors: Li, Xin
Zhang, Yiming
Chen, Shuxin
Tang, Yi
Zhang, Xin
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2021
Source: Li, X., Zhang, Y., Chen, S., Tang, Y. & Zhang, X. (2021). Small-signal modeling for phase-shift controlled resonant converters. IEEE Transactions On Industrial Electronics, 68(11), 11026-11034.
Project: SMI-2019-MA-02
Journal: IEEE Transactions on Industrial Electronics
Abstract: The extended describing function (EDF) method is widely used in modeling the resonant converters. This article finds that the model of the phase-shift controlled resonant converter deduced by this method might be inaccurate especially when the duty-cycle is close to 1. The reason behind it is investigated, showing that derivation of the inverter bridge model based on its fundamental harmonic will cause error. A novel model of the inverter bridge by Fourier analysis is proposed. Incorporating the novel model into the EDF-based resonant model, the accuracy of the phase-shift controlled resonant converter is greatly improved. A series-series compensated inductive power transfer system is fabricated in the lab to verify the validity of the proposed model.
ISSN: 0278-0046
DOI: 10.1109/TIE.2020.3038088
Schools: School of Electrical and Electronic Engineering 
Rights: © 2020 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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