Patent · US Expired

Method for reducing losses during the commutation process

US6434019B1 · kind B1 · utility

19Cited by

2References

2Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Eric Baudelot · Weisendorf, DE
Manfred Bruckmann · Wendelstein, DE
Heinz Mitlehner · Uttenreuth, DE
Benno Weis · Hemhofen, DE

Key dates

Filing date	Jun 4, 2001
Grant date	Aug 13, 2002
Priority date	—
Expiry date	Jun 4, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B70/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention provides a method by which losses are reduced during the commutation of a free-running, driven power converter valve (T2) of an invertor phase (2) to a current-accepting power converter valve (T1) of said invertor phase (2). The current-accepting power converter valve (T1) is switched on at the beginning of the commutation process and the free-running, driven power converter valve (T2) is rapidly switched off as soon as the value of its drain voltage (UD) is zero.

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