Patent · US Active

Drive and method

US8125178B2 · kind B2 · utility

1Cited by

12References

16Claims

0Family size

Assignee

SEW-EURODRIVE GMBH & CO. KG · DE

Inventors

Wolfgang Hammel · Bruchsal, DE
Thomas Schuster · Ottenbach, DE

Key dates

Filing date	Jul 17, 2007
Grant date	Feb 28, 2012
Priority date	—
Expiry date	Nov 26, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH02P23/0004
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A drive and a method, including an electric motor, which is supplied by a rectifier, the rectifier including a time-discrete closed-loop control structure, which regulates the stator current of the electric motor by setting the voltage applied at the motor, the current of the motor being acquired in time-discrete fashion, the closed-loop control structure including a closed-loop controller whose actual value is a first current component of the current, the setpoint input of the closed-loop controller being coupled with at least one upstream setpoint limiter.

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