A Periodic-Steady-State Analysis Model in Time Domain for Dual Active Bridge Converter

Autor:	Quanming Luo, Jia Li, Di Mou, Teng Long, Yunwei Ryan Li, Yuqi Wei, Nie Hou
Rok vydání:	2022
Předmět:	Physics Nonlinear system Capacitor Periodic steady-state analysis Control theory law Process (computing) Equivalent circuit Time domain Transient (oscillation) Electrical and Electronic Engineering Converters law.invention
Zdroj:	IEEE Transactions on Power Electronics. 37:4121-4132
ISSN:	1941-0107 0885-8993
DOI:	10.1109/tpel.2021.3127926
Popis:	This paper forms a multi-time scale modeling method through time-domain analysis, using both ideal steady-state processes and finite switching transient processes for increased accuracy of dual active bridge (DAB) converters. All possible operating modes and the corresponding state equations are derived from the switching transient process for a five-degree freedom (5-DOF) modulated DAB converter based on the unified equivalent circuit. The nonlinear parasitic capacitors are considered in this process. A periodic-steady-state analysis model (PSSAM) is established to accurately predict the residual voltage under incomplete zero-voltage switching (ZVS). This method is applicable for all phase-shift modulated DAB converter, and the calculation time is reduced 28-61 times comparing with LTspice simulation. Finally, the simulation and experimental results are compared to validate the effectiveness of the model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::55719153ea33a837e880648d7e2adc84 https://doi.org/10.1109/tpel.2021.3127926 Zobrazit plný text záznamu