Patents by Inventor Giesbert Krueger

Giesbert Krueger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • ELECTRICAL MACHINES AND METHODS TO MITIGATE BEARING CURRENTS
    Publication number: 20230223826
    Abstract: The present disclosure relates to electrical machines (100, 200) configured to be fed by pulse width modulation from a power converter (170) and comprising a stator (110), a rotor (120), a rotor shaft (130) and one or more bearings (140, 141) arranged between the rotor (120) and the stator (110). The electrical machine (100, 200) further comprising an electrical shunt (160, 161) arranged between the rotor shaft (130) and the stator (110). The present disclosure also relates to methods (500) to mitigate electrical discharge machining bearing currents in electrical machines (100, 200).
    Type: Application
    Filed: January 5, 2023
    Publication date: July 13, 2023
    Inventors: Lionel DURANTAY, Kum Kang HUH, Christophe GROSSELIN, Henri BAERD, Ludger LUETKEHUES, Giesbert KRUEGER
  • Methods and systems for wind turbine generators
    Patent number: 7884492
    Abstract: Methods and systems for reducing heat loss in a generator system are provided. The generator system includes an electrical generator and a power converter. The method includes generating electricity in the generator at a first power factor and converting electricity in the converter at a second power factor in a first mode of operation and generating electricity in the generator at a third power factor wherein the third power factor is greater than the first power factor and converting electricity in the converter at a fourth power factor wherein the fourth power factor is less than the second power factor in a second mode of operation such that the power output of the generator system in the second mode of operation is substantially equal to the power output of the generator system in the first mode of operation and the generator currents are facilitated being reduced.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: February 8, 2011
    Assignee: General Electric Company
    Inventors: Qimou Xiong, Xiang Yu, Yu Zhou, Yingming Zhang, David Smith, Giesbert Krueger, Andre Langel
  • METHODS AND SYSTEMS FOR WIND TURBINE GENERATORS
    Publication number: 20090121483
    Abstract: Methods and systems for reducing heat loss in a generator system are provided. The generator system includes an electrical generator and a power converter. The method includes generating electricity in the generator at a first power factor and converting electricity in the converter at a second power factor in a first mode of operation and generating electricity in the generator at a third power factor wherein the third power factor is greater than the first power factor and converting electricity in the converter at a fourth power factor wherein the fourth power factor is less than the second power factor in a second mode of operation such that the power output of the generator system in the second mode of operation is substantially equal to the power output of the generator system in the first mode of operation and the generator currents are facilitated being reduced.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 14, 2009
    Inventors: Qimou Xiong, Xiang Yu, Yu Zhou, Yingming Zhang, David Smith, Giesbert Krueger, Andre Langel