Patent · US Expired

Method for reducing natural system oscillations to ground potential in an electrical drive having a voltage intermediate circuit

US6590302B2 · kind B2 · utility

2Cited by

5References

21Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Kurt Goepfrich · Erlangen, DE
Sebastian Raith · Erlangen, DE
Bernd Segger · Erlangen, DE

Key dates

Filing date	Jul 27, 2001
Grant date	Jul 8, 2003
Priority date	—
Expiry date	Jul 27, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/123
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for reduction of natural system oscillations in an electric motor which is operated using a converter with a voltage intermediate circuit, by periodically decoupling the voltage intermediate circuit (UZK) from the supply mains system (N) at times which are synchronized to triggering equipment for the input converter (E), in particular for as long as current is flowing through the mains system input inductor (LK).

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