Análise e projeto de sistemas de controle de conversores de potência multiportas.

Abstract

In this paperwork, a multiport converter topology was chosen, with the objective of designing the power transfer control system of this four-port static converter that uses two complete bridges and a high frequency coupled inductor, following the Dual Active Bridge Converter principle.This converter operates in different modes, depending on the duty cycles of the two bridges. Power transfer between complete bridge converters is controlled by duty cycles and phase changes. The viability of the system was validated through simulation results and experiments. A control system of power flow has been proposed within this converter. The power flow presented for this converter has been defined depending on the duty cycles of these two converters and the phase shift, considering the magnetization inductance of the high-voltage transformer frequency to obtain the system model. To validate this system, simulations and experimental tests were done, considering the static and dynamic behavior of this converter, in which it is possible to prove its viability of operation.