PROJECT TITLE :

Generalized Averaging Modeling and Control Strategy for Three-Phase Dual-Active-Bridge DC-DC Converters with Three Control Variables - 2017

ABSTRACT:

In this paper, different order generalized state-space averaging (GSSA) models are derived for a three-section twin-active-bridge (3p-DAB) dc-dc converter with PWM control theme. The little-signal model primarily based on GSSA model is deduced and a comparison between different models and a circuit simulation is created. Subsequently, a closed-loop management strategy with an optimal limitation unit is proposed for 3p-DAB converters. The management strategy will operate the converter in an exceedingly closed loop with any optimized modulation theme to reinforce the efficiency and other performances. The controller parameters will be easily designed primarily based on the 2nd-order GSSA model. Finally, the experimental results are presented to verify the effectiveness of the small-signal model and the proposed control strategy.