Patent · US Active

Power supply device

US8476854B2 · kind B2 · utility

9Cited by

6References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Bernd Blöcher · Erlangen, DE
Marc Hiller · Lauf an der Pegnitz, DE
Rainer Sommer · Heroldsbach, DE

Key dates

Filing date	Mar 27, 2009
Grant date	Jul 2, 2013
Priority date	—
Expiry date	Dec 26, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH02M7/4835
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A power supply device for a variable rotation speed drive includes a free-running converter connected to a land-based power grid, and an inverter connected to the variable rotation speed drive. A direct-current cable electrically connects the DC side of the converter with the DC side of the inverter. The inverter includes a plurality of phase modules having an upper and a lower valve branches with least two series-connected, two-pole subsystems with distributed energy storage devices. The inverter is located on the seabed in immediate vicinity of the variable rotation speed drive. Signal electronics of the inverter is located on land. In this way, the distance between the power supply on land and the drive on the ocean floor can reach several hundred kilometers, with ocean depths of several kilometers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.