Siemens Aktiengesellschaft

Transocean Offshore Deepwater Drilling Inc.

Jörg Flottemesch

Michael Weinhold

Rainer Zurowski

Ed Bourgeau

Jürgen Moser

Hermann Holfeld

Stephan Schaller

In order to provide an apparatus for the redundant power supply of at least one load having a first converter, which can be connected to a first AC voltage system via a first connection, a second converter, which can be connected to a second AC voltage system via a second connection, and a DC voltage intermediate circuit, which connects the first converter to the second converter on the DC voltage side, which apparatus makes a redundant power supply possible, the invention proposes that the DC voltage intermediate circuit has at least one load connection for the purpose of supplying power to a load.

Apparatus for the redundant power supply of at least one load

The invention relates to a wind energy unit, connected to an electrical 3-phase AC network, comprising a generator with a rotor, provided with a regulator device, whereby the regulator device comprises a first and a second regulation unit. A network voltage analyzer is connected to the regulator device and the electrical 3-phase AC network, by means of which a network fault can be recognized, said network fault being defined as a deviation of the network voltage sinor representation from a given set interval, whereby the second regulation unit takes over control from the first regulation unit in the case of a recognized fault and the first regulation performs the control for a non-faulty 3-phase AC network.

Wing energy unit

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Bubenreuth, Germany

Jörg Flottemesch