Patent · US Active

Fuel cell system in a bipolar high-voltage network and method for operating a bipolar high-voltage network

US9859801B2 · kind B2 · utility

5Cited by

8References

11Claims

0Family size

Assignee

AIRBUS OPERATIONS LIMITED · DE

Inventors

Joerg Wangemann · Magdeburg, DE
Hauke-Peer Luedders · Hamburg, DE
Alexander Kaiser · Neutraubling, DE

Key dates

Filing date	Feb 23, 2015
Grant date	Jan 2, 2018
Priority date	—
Expiry date	Jan 15, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T90/40
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A bipolar high-voltage network for an aircraft or spacecraft. The network includes at least one DC-DC converter having two unipolar input connections and two bipolar output connections as well as a reference potential connection, at least two fuel cell stacks which are coupled in series between the two unipolar input connections, and at least two discharge diodes, each connected in parallel with the output connections of one of the at least two fuel cell stacks. The DC-DC converter is operable selectively in a step-up converter mode of operation or a step-down converter mode of operation, as a function of an input voltage between the unipolar input connections.

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