Patent · US Expired

N-point-converter circuit

US6930899B2 · kind B2 · utility

49Cited by

7References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Mark-Matthias Bakran · Erlangen, DE
Martin Neeser · Erlangen, DE
Georg Zaiser · Erlangen, DE

Key dates

Filing date	Oct 29, 2003
Grant date	Aug 16, 2005
Priority date	—
Expiry date	Dec 11, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH02M7/483
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An n-point-converter circuit with two series-connected power converter valves, each having (n−1) turn-off semiconductor switches, is disclosed. The converter circuit has a voltage intermediate circuit with (n−1) electrically series-connected capacitors. The voltage intermediate circuit is connected in parallel to DC-side terminals of the series-connected power converter valves. At least one AC-side terminal can be connected to one or more of the n potentials of the voltage intermediate circuit by means of (n−2) cross arms, each of which includes at least (n−3) turn-off semiconductor switches. The multipoint converter is easy to implement, has an improved output voltage quality, and possesses an emergency running feature.

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