Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2008-05-13
2008-05-13
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S801000, C318S814000, C318S805000
Reexamination Certificate
active
07372233
ABSTRACT:
A method is provided for operating a converter circuit, in particular a pulse-width modulated frequency converter circuit having a DC voltage intermediate circuit, which controls two or more winding sections of a polyphase dynamo-electrical machine, in particular a three-phase asynchronous motor for a laundry appliance. The method determines one or more parameters of the dynamo-electrical machine, before a rotating field is produced in the dynamo-electrical machine by the converter circuit. The parameters can be used to deduce a variant of the dynamo-electrical machine, and to select open-loop and closed-loop control parameters which are associated with the variant. Likewise, the method allows possible machine faults to be determined by using the parameters. Likewise, a converter circuit and a laundry appliance perform the method and have a converter circuit for controlling a polyphase dynamo-electrical machine, which, in particular, drives a drum which is mounted in the laundry appliance such that it can rotate.
REFERENCES:
patent: 4540921 (1985-09-01), Boyd et al.
patent: 4709292 (1987-11-01), Kuriyama et al.
patent: 5021722 (1991-06-01), Llerena et al.
patent: 5592058 (1997-01-01), Archer et al.
patent: 6215261 (2001-04-01), Becerra
patent: 6586898 (2003-07-01), King et al.
patent: 6661681 (2003-12-01), Nakamura
patent: 6774664 (2004-08-01), Godbersen
patent: 2005/0073279 (2005-04-01), Fenley
Albayrak Hasan Gökcer
Knopp Lothar
Ludenia Thomas
Skrippek Jörg
BSH Bosch und Siemens Haus-geraete GmbH
Donovan Lincoln
Howard James E.
McCloud Renata
Warnock Russell W.
LandOfFree
Method for operation of a converter circuit for a washing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for operation of a converter circuit for a washing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for operation of a converter circuit for a washing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2757883