This paper proposes a linearized large-signal state space model for phase-controlled series-parallel resonant converter. The model combines multiple-frequency and average state-space modeling techniques to generate a universal model with DC state variables that are easier to control compared to the fast resonant tank dynamics. In order to perform linearization, the proposed model utilizes a state feedback scheme from output filter inductor current. The model also serves as a tool for large signal prediction/estimation of converter state variables. The model accuracy was verified by comparing with a detailed switching model of the converter built in MATLAB simulation environment.
- mathematical model
- integrated circuit modeling
- resonant frequency
- state feedback
Aboushady, A. A., Ahmed, K. H., Finney, S. J., & Williams, B. W. (2011). State feedback linearized model for phase-controlled series-parallel resonant converters. In IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society IEEE. https://doi.org/10.1109/IECON.2011.6119544