| 摘要 |
The present invention relates to a power distribution system (1) for supplying electrical power to a plurality of low-voltage DC loads in a data center, comprising: -a galvanically isolated converter arrangement (3) for transforming a medium-voltage AC power provided on an utility line (2) to a low/medium DC voltage provided on a first DC bus (5); and -a plurality of DC loads to be supplied with a low DC voltage generated from the low/medium DC voltage on the first DC bus (5) by means of one or more additional DC/DC converters, characterized in that the converter arrangement (3) has one converter unit (21) per phase, wherein each of the converter units (21) has a plurality of converter cells (22), and wherein each converter cell (22) has an AC/DC converter stage (23, 31) followed by a DC/DC converter stage (24, 32), wherein the DC/DC converter stage (24, 32) has a DC/AC converter and an AC/DC converter coupled to a medium-or high-frequency transformer for galvanic isolation. |
