High-density bidirectional rectifier for next generation 380-V DC distribution system

An Approach to a Higher‐Power‐Density Power Supply for a 380‐V DC Distribution System

“…Figure shows the circuit configuration of a power unit, considering the proposed methodology. The features of the PWM converter using the SiC‐JFET (1200 V, 63 m Ω ) and the SiC‐SBD (1200 V, 5 A) have been reported for the front‐end AC‐DC converter, and a power density of 2.0 W/cm 3 with a maximum efficiency of 97% has been verified experimentally . Below, an approach based on the ISOP and IPOS topologies is introduced to realize a higher‐power‐density DC transformer, taking the highly integrated low‐voltage on‐board power supply technology into account.…”

A single-stage three-phase AC/DC converter with Y-Δ three-phase transformer

“…Compared with traditional AC distribution architecture, 400V DC power distribution architecture for data center has been presented superior efficiency, power density and reliability with fewer power stages [1,2]. A three-phase AC/DC converter is needed as the front rectifier, which generally converts three-phase 380 AC voltage to 400V DC [3][4][5].…”

Comparative Optimization Design of a Modular Multilevel Converter Tapping Cells and a 2L-VSC for Hybrid LV ac/dc Microgrids

“…In addition, the required voltage and power levels that are needed to build a hybrid ac/dc microgrid are still not well defined for the dc part of the hybrid microgrid. Initial designs are proposed in [3][4][5][6][7] to either set the power and dc voltage levels or to propose a topology for the multiport converter. For example, authors in [3] propose a bipolar dc grid with three voltage levels that are available to supply dc loads: ±170V and 340V.…”