Dual Active Bridge simultaneous input admittance passivity shaping and reference tracking using low order H-infinity control

This paper presents a design methodology for the output voltage control loop of a dual active bridge (DAB). It is based on fixed-order H
∞
non-smooth synthesis combined with passivity restrictions over closed-loop impedance transfer function, known to have a critical impact on system voltage stability. The proposal inherits the advantages of modern techniques, making use of simple frequential weighting-based design and plant dynamical complexity black-boxing, while keeping controller complexity low.