Three-phase Single-stage Bi-directional Electrolytic Capacitor-less AC-DC converter with minimum switch count

Duty-Cycle Dependent Phase Shift Modulation of Dual Three-Phase Active Bridge Four-Port AC–DC/DC–AC Converter Eliminating Low Frequency Power Pulsations

“…To avoid saturation of the leakage inductance when operating with f 1 ̸ = f 2 , all voltages are reduced by a factor of 1/2 as listed for S4 in Table II. The reduction of the dc link voltages by 1/2 results according to (14) in a reduction of the power by a factor of 1/4, which leads to P Σ = 2 kW.…”

“…In the context of improving the efficiency and/or volume requirements of power electronic circuits, the integration of several converter stages into a single converter stage is of particular importance. Examples of documented rectifiers with integrated galvanic isolation are the current-fed rectifiers with integrated LLC resonant converter described in [11] or with a DAB converter presented in [12], the rectifier with integrated full-bridge dc/dc converter presented in [13], the rectifier with integrated three-phase DAB converter explained in [14], or the nine-switch converter with integrated three-phase resonant converter described in [15]. These topologies are complemented by further rectifier topologies with integrated galvanic isolation, but without a primary-side dc voltage port, such as matrix-type converters [16], [17] and Swiss-type converters [18], [19].…”