Controller for a wound rotor slip ring induction machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6741059
APP PUB NO 20030071596A1
SERIAL NO

10200689

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The direct torque control (DTC) principle is used to control the torque of a wound ring rotor slip induction machine, also known as a doubly fed or cascade machine, by utilizing a solid state inverter on the rotor side. In addition, the DTC principle is used to control the power factor at the stator terminals of the doubly fed machine to a desired level and also to perform the task of synchronization of stator voltage to the grid voltage. An integrated controller is used to implement these three functions.

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Patent Owner(s)

  • ABB AUTOMATION INC.;ABB INDUSTRY OY;ABB SCHWEIZ AG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gokhale, Kalyan P New Berlin, WI 20 679
Heikkila, Samuli J Helsinki, FI 2 62
Karraker, Douglas W Muskego, WI 5 79

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