a linearized large signal model of an lcl-type resonant converter

Clicks: 294
ID: 183076
2015
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Abstract
In this work, an LCL-type resonant dc/dc converter with a capacitive output filter is modeled in two stages. In the first high-frequency ac stage, all ac signals are decomposed into two orthogonal vectors in a synchronous rotating d–q frame using multi-frequency modeling. In the dc stage, all dc quantities are represented by their average values with average state-space modeling. A nonlinear two-stage model is then created by means of a non-linear link. By aligning the transformer voltage on the d-axis, the nonlinear link can be eliminated, and the whole converter can be modeled by a single set of linear state-space equations. Furthermore, a feedback control scheme can be formed according to the steady-state solutions. Simulation and experimental results have proven that the resulted model is good for fast simulation and state variable estimation.
Reference Key
li2015energiesa Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Hong-Yu Li;Xiaodong Li;Ming Lu;Song Hu
Journal acs combinatorial science
Year 2015
DOI
10.3390/en8031848
URL
http://www.mdpi.com/1996-1073/8/3/1848
Keywords
markov chain heavy oil robustness upgrading 1d calculations

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