This paper proposes an adaptive voltage position (AVP) control method for the improved phase shift full bridge (PSFB) soft switching DC-DC converter. For the improved topology, clamping diodes and resonant inductor are added. All power Mosfets can achieve soft switching at full load conditions and since clamping di-odes are utilized, the voltage oscillation of the output rectifier diodes can be de-creased. In order to improve the output voltage response ability of the converter in the process of load conversion, An AVP control method based on output cur-rent feedback regulation is proposed. Working principle of the topology and control method are introduced. Small signal model and controller design process are analyzed. Performance of the proposed control method and topology are verified by a 500W simulation model.
AVP Control Method for an Improved Phase Shifted Full Bridge Soft Switching DC-DC Converter
Lect. Notes Electrical Eng.
International Conference on Electrical and Information Technologies for Rail Transportation ; 2021 October 21, 2021 - October 23, 2021
Proceedings of the 5th International Conference on Electrical Engineering and Information Technologies for Rail Transportation (EITRT) 2021 ; Kapitel : 75 ; 743-754
2022-02-19
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
An Enhanced Model for Small-Signal Analysis of the Phase-Shifted Full-Bridge Converter
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