A Linearized Large Signal Model of an LCL-Type Resonant Converter
AbstractIn 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. View Full-Text
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Li, H.-Y.; Li, X.; Lu, M.; Hu, S. A Linearized Large Signal Model of an LCL-Type Resonant Converter. Energies 2015, 8, 1848-1864.
Li H-Y, Li X, Lu M, Hu S. A Linearized Large Signal Model of an LCL-Type Resonant Converter. Energies. 2015; 8(3):1848-1864.Chicago/Turabian Style
Li, Hong-Yu; Li, Xiaodong; Lu, Ming; Hu, Song. 2015. "A Linearized Large Signal Model of an LCL-Type Resonant Converter." Energies 8, no. 3: 1848-1864.