Patent · US Active

Semiconductor protection elements for controlling short circuits at the DC end of voltage source converters

US8817440B2 · kind B2 · utility

2Cited by

5References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Mike Dommaschk · Guteborn, DE
Jörg Dorn · Buttenheim, DE
Ingo Euler · Erlangen, DE
Jörg Lang · Stadtsteinach, DE
Quoc-Buu Tu · Roßtal, DE
Klaus Würflinger · Koblenzer Straße, DE

Key dates

Filing date	Dec 8, 2006
Grant date	Aug 26, 2014
Priority date	—
Expiry date	Sep 30, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH02M7/5387
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A device for converting an electric current includes at least one phase module having an AC terminal and at least one DC terminal. Phase module branches, each of which is equipped with serially connected submodules, are respectively provided between each DC terminal and each AC terminal. Each submodule is provided with at least one power semiconductor. Semiconductor protecting means are connected in parallel or in series to at least one of the power semiconductors to enable the device to withstand even high short-circuit currents for a sufficient period of time. A method for protecting the power semiconductors of the device, is also provided.

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