Patent · US Active

Control method for redundant use in the event of a fault in a polyphase converter with distributed energy stores

US8138632B2 · kind B2 · utility

7Cited by

6References

2Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Rainer Sommer · Heroldsbach, DE
Marc Hiller · Lauf an der Pegnitz, DE

Key dates

Filing date	Aug 2, 2006
Grant date	Mar 20, 2012
Priority date	—
Expiry date	Mar 26, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/325
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for controlling a power converter having at least two phase modules, which each have an upper and a lower valve branch, each having at least three series-connected two-pole subsystems, in the event of failure of at least one subsystem of a valve branch of a phase module. According to the invention, the valve branch (T1, T6) with the failed subsystem (10) is determined, and in each case a subsystem (10) of a valve branch (T1, T6), which corresponds to the faulty valve branch (T1, T6), of any fault-free phase module (100) is driven such that its terminal voltages (UX21) are in each case zero. A polyphase power converter with distributed energy stores (9) is therefore operated with redundancy.

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