High-voltage DC voltage unit and method for operating a high-voltage DC voltage unit

Patent metadata

Field	Value
Publication number	US-10027113-B2
Application number	US-201414283546-A
Country	US
Kind code	B2
Filing date	May 21, 2014
Priority date	May 23, 2013
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A high-voltage DC voltage unit with a first DC voltage apparatus providing a first high-voltage DC voltage between a first output connection and a second output connection of the DC voltage apparatus or can be fed with a first high-voltage DC voltage. A second DC voltage apparatus provides a second high-voltage DC voltage or can be fed with a second high-voltage DC voltage. A first DC voltage connection is coupled with the first output connection of the first DC voltage apparatus. A second DC voltage connection is coupled with the second output connection of the second DC voltage apparatus. A reference potential connection is coupled with the second output connection of the first DC voltage apparatus, with the first output connection of the second DC voltage apparatus and with an earth potential, the first and second high-voltage DC voltages realizing a bipolar power supply.

First claim

What is claimed is:

1. An aircraft having a high-voltage DC voltage unit, the high-voltage DC voltage unit, comprising:
a first DC voltage apparatus which is configured to provide a first high-voltage DC voltage between a first output connection and a second output connection of the first DC voltage apparatus or is configured to be fed with a first high-voltage DC voltage;
a second DC voltage apparatus which is configured to independently provide a second high-voltage DC voltage between a first output connection and a second output connection of the second DC voltage apparatus or is configured to be fed with an independent second high-voltage DC voltage;
a first DC voltage connection which is coupled with the first output connection of the first DC voltage apparatus;
a second DC voltage connection which is coupled with the second output connection of the second DC voltage apparatus; and
a reference potential connection which is coupled with the second output connection of the first DC voltage apparatus, with the first output connection of the second DC voltage apparatus and with an earth potential, wherein the first and second high-voltage DC voltages realise a bipolar power supply.

2. The high-voltage DC voltage unit according to claim 1 , wherein the DC voltage apparatuses each have uncontrolled rectifiers.

3. The high-voltage DC voltage unit according to claim 1 , wherein the DC voltage apparatuses each have four-quadrant actuators.

4. The high-voltage DC voltage unit according to claim 2 , further comprising:
two alternating voltage generators which are coupled respectively with one of the DC voltage apparatus and are configured to feed the respectively coupled DC voltage apparatus with electric alternating voltage.

5. The high-voltage DC voltage unit according to claim 4 , wherein the two alternating voltage generators are configured within a single electrical machine with two sets of windings.

6. The aircraft according to claim 1 , wherein the DC voltage apparatuses are bridge halves of a multi-level NPC power converter.

7. The aircraft according to claim 6 , further comprising:
an electrical machine which is coupled with the multi-level NPC power converter and is configured to feed both bridge halves of said multi-level NPC power converter with electric alternating voltage.

8. The high-voltage DC voltage unit according to claim 1 , further comprising:
a first DC voltage intermediate circuit which is coupled between the DC voltage output connections.

9. The aircraft according to claim 1 , further comprising:
two second DC voltage intermediate circuits which are respectively coupled between the first and second output connections of the first and second DC voltage apparatuses.

10. A method for operating a high-voltage DC voltage unit of an aircraft according to claim 1 , comprising:
generating a first high-voltage DC voltage by a first DC voltage apparatus between a first output connection and a second output connection of the first DC voltage apparatus;
independently generating a second high-voltage DC voltage by a second DC voltage apparatus between a first output connection and a second output connection of the second DC voltage apparatus;
providing a bipolar power supply by providing the first high-voltage DC voltage between a first DC voltage connection which is coupled with the first output connection of the first DC voltage apparatus, and a reference potential connection which is coupled with the second output connection of the first DC voltage apparatus, with the first output connection of the second DC voltage apparatus and with an earth potential, and by providing the second high-voltage DC voltage between a second DC voltage connection which is coupled with the second output connection of the second DC voltage apparatus, and the reference potential connection.

Assignees

• Airbus Operations Gmbh
• Eads Deutschland Gmbh
• Airbus Defence & Space Gmbh

Inventors

• Wangemann Joerg
• Schult Jens

Classifications

• H02M7/487

  Neutral point clamped inverters · CPC title

• H02M7/25

  arranged for operation in series, e.g. for multiplication of voltage · CPC title

• H02J1/10 Primary

  Parallel operation of DC sources · CPC title

• H02J1/08 Primary

  Three-wire DC power distribution systems; Systems having more than three wires · CPC title

• H02P2101/30

  for aircraft · CPC title