Patent · US Active

Method for inhibiting a converter with distributed energy stores

US8873258B2 · kind B2 · utility

3Cited by

11References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Marc Hiller · Lauf an der Pegnitz, DE
Dietmar Krug · Koblenzer Straße, DE
Rainer Sommer · Heroldsbach, DE

Key dates

Filing date	Jun 14, 2011
Grant date	Oct 28, 2014
Priority date	—
Expiry date	May 26, 2032

Classification

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

Abstract

A method for inhibiting a converter having at least two phase modules is disclosed. Each phase module has an upper and a lower valve branch, with each upper and lower valve branch having a plurality of two-pole submodules which are electrically connected in series and each have a unipolar energy storage capacitor, with a series connection of two turn-off semiconductor switches each being connected in parallel with an antiparallel connected diode. With the method, the submodules in an upper and a lower valve branch in each phase module in the converter are controlled to a switching state III, staggered in time. This considerably reduces the voltage load for the converter and a connected polyphase motor, or a connected power supply system.

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