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
10858690
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.
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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.
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