Model of DC/DC Dual-Bridge Series Resonant Converter in Buck and Boost Modes for Output Current and Commutation Timing Control

Alex Borisevich, BrutBio Inc., Filipp Gleyzer, Department of Automotive, Skyline College, 3300 College Drive, San Bruno, CA 94066, USA.
2019 Journal of Engineering Science and Technology Review  
In the paper, a control-affine model for the active dual-bridge series resonant converter is presented. The model has square form and produces cycle averaged output current and two parameters of waveform alignment for the controllable achievement of ZVS and synchronous rectification. The output characteristics of the converter are obtained by using the first harmonic approximation of input voltage applied to the resonant tank. The maximum prediction error of this model is about 10% in
more » ... to the measured data. This model is suitable for both voltage buck and boost operations, and also demonstrates fundamental control properties of the converter namely high nonlinearity respect to the control inputs, a singularity of output current surface between buck and boost modes, and holonomic constraints for control variables.
doi:10.25103/jestr.122.21 fatcat:kvsihvphf5hwnclp7vm7mcsjfe