Method and device for operating double fed ac machine in particular in a wind power station

The method involves operating the machine (1) with an intermediate d.c. circuit inverter (4) in the rotor circuit by operating it as a dual feed asynchronous machine in normal operation and as an asynchronous machine with a short circuited rotor in the low power range by isolating the rotor (3) from...

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Hauptverfasser: Mehl, Tobias, Dipl.-Ing, Seehuber, Michael, Dr.-Ing, Wiesbauer, Jose, Ing
Format: Patent
Sprache:eng ; fre ; ger
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creator Mehl, Tobias, Dipl.-Ing
Seehuber, Michael, Dr.-Ing
Wiesbauer, Jose, Ing
description The method involves operating the machine (1) with an intermediate d.c. circuit inverter (4) in the rotor circuit by operating it as a dual feed asynchronous machine in normal operation and as an asynchronous machine with a short circuited rotor in the low power range by isolating the rotor (3) from the inverter and short circuiting it and changing the stator (2) over from the mains (14) to the inverter. An independent claim is also included for the following: (a) a wind power system with a polyphase machine, especially generator.
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subjects CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
title Method and device for operating double fed ac machine in particular in a wind power station
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