Patent · US Active

Controlled electric motor arrangement for a tension mechanism

US7944158B2 · kind B2 · utility

7Cited by

10References

30Claims

0Family size

Assignee

Baumueller Nuernberg GmbH · DE

Inventors

Jinsheng Jiang · Koblenzer Straße, DE
Viktor Barinberg · Erbach, DE

Key dates

Filing date	Sep 26, 2008
Grant date	May 17, 2011
Priority date	—
Expiry date	Nov 24, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/1967
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A field-oriented control method for an electric drive comprising a plurality of electric motors, for implementing a tension mechanism, especially for load cable and/or gearing means, using measurements of a polyphase motor actual current. The measured values are transformed into a direct current component and a quadrature current component, based upon a magnetic rotor field or flux angle, in a rotor flux-based d,q coordinate system. The quadrature and direct current components from the actual current are subjected to a comparison with predetermined quadrature and direct current components of a current command value. The method has the following steps:

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