Comparação entre Controles Clássicos e Preditivo no desempenho de um Conversor Dual Active Bridge

The Dual Active Bridge (DAB) convert stands out for the application on modern power grids with DC stages. Among DAB advantages, one can cite: it has galvanic isolation between converting input and output; presents high efficiency; enables bidirectional flow; shows density; work as buck or boost. In this paper, initially two mathematical models are discussed: small- signal modeling discrete modeling. small-signal better accuracy operation nearly rated power. good performance whole range of operation. Besides that, paper discusses three control proposals: A closed-loop voltage using PI; phase-shift prediction; a model predictive (MPC). strategies were evaluated observing parameters like dynamic response, steady state behavior, transient overshoot strategies.