Patents by Inventor Georg Moehlenkamp

Georg Moehlenkamp 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).

  • Patent number: 9281754
    Abstract: An electrical circuit, in particular a circuit used for generating electric power, wherein this circuit comprises a generator with n phases, a converter and a transformer to which a p-phase load can be connected. The converter comprises m partial converters, each of the partial converters is composed of p units and each of these units is provided with n/m switching circuits. The switching circuits of the individual units are connected symmetrical to the generator.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: March 8, 2016
    Assignee: GE Energy Power Conversion Technology Ltd.
    Inventors: Georg Moehlenkamp, Reinhard Wagnitz
  • Patent number: 9124119
    Abstract: A system for generating electrical power is described. In at least one embodiment, the system includes a turbine that is mechanically connected to a generator, wherein the generator is electrically connected via a first converter to a load. The first converter generates a first output current. A second output current is generated by a second converter and is added to the first output current. The second output current is generated such that an actual current over the load follows a desired current.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: September 1, 2015
    Assignee: GE Energy Power Conversion Technology Limited
    Inventors: Georg Moehlenkamp, Siegfried Nowak
  • Publication number: 20130301329
    Abstract: An electrical circuit, in particular a circuit used for generating electric power, wherein this circuit comprises a generator with n phases, a converter and a transformer to which a p-phase load can be connected. The converter comprises m partial converters, each of the partial converters is composed of p units and each of these units is provided with n/m switching circuits. The switching circuits of the individual units are connected symmetrical to the generator.
    Type: Application
    Filed: July 18, 2013
    Publication date: November 14, 2013
    Applicant: CONVERTEAM TECHNOLOGY LTD.
    Inventors: Georg MOEHLENKAMP, Reinhard WAGNITZ
  • Patent number: 8526208
    Abstract: An electrical circuit, in particular a circuit used for generating electric power, wherein this circuit comprises a generator with n phases, a converter and a transformer to which a p-phase load can be connected. The converter comprises m partial converters, each of the partial converters is composed of p units and each of these units is provided with n/m switching circuits. The switching circuits of the individual units are connected symmetrical to the generator.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: September 3, 2013
    Assignee: Converteam Technology Ltd.
    Inventors: Georg Moehlenkamp, Reinhard Wagnitz
  • Patent number: 8212534
    Abstract: Described is a method for starting up a system for generating electrical power. The system includes a turbine that is mechanically connected to a generator, while the generator is electrically connected via a converter to a load, in particular to a power supply grid. The generator includes a total number of windings. With at least one embodiment of the method, a number of generator windings are combined at low rotational speeds of the turbine, wherein the combined number of windings is less than the total number of windings.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: July 3, 2012
    Assignee: Converteam Technology, Ltd.
    Inventors: Georg Moehlenkamp, Aurélie Bocquel
  • Publication number: 20120032532
    Abstract: A system for generating electrical power is described. In at least one embodiment, the system includes a turbine that is mechanically connected to a generator, wherein the generator is electrically connected via a first converter to a load. The first converter generates a first output current. A second output current is generated by a second converter and is added to the first output current. The second output current is generated such that an actual current over the load follows a desired current.
    Type: Application
    Filed: March 1, 2011
    Publication date: February 9, 2012
    Applicant: Converteam Technology Ltd.
    Inventors: Georg Moehlenkamp, Siegfried Nowak
  • Publication number: 20120006521
    Abstract: Described is a heat sink for an electronic component. In at least one embodiment, the heat sink includes several cooling fins and carbon nanotubes, present between the top surface of the heat sink and the cooling fins. The carbon nanotubes extend from the top surface of the heat sink in the direction toward one of the cooling fins and are oriented at an angle to the orientation of the associated cooling fin.
    Type: Application
    Filed: April 20, 2011
    Publication date: January 12, 2012
    Applicant: Converteam GmbH
    Inventors: Georg Moehlenkamp, Christian Keller
  • Publication number: 20110069519
    Abstract: An electrical circuit, in particular a circuit used for generating electric power, wherein this circuit comprises a generator with n phases, a converter and a transformer to which a p-phase load can be connected. The converter comprises m partial converters, each of the partial converters is composed of p units and each of these units is provided with n/m switching circuits. The switching circuits of the individual units are connected symmetrical to the generator.
    Type: Application
    Filed: October 9, 2009
    Publication date: March 24, 2011
    Inventors: Georg Moehlenkamp, Reinhard Wagnitz
  • Patent number: 7675271
    Abstract: Described is a system for generating electrical power, which system includes a turbine that is mechanically connected to a generator, which in turn is connected via a multiphase transformer to a load. In at least one embodiment, at least two counter-connected switching devices of the converter are assigned to each phase of the transformer. The transformer is provided on the side facing the converter with two winding arrangements in a star connection. Each of the windings of the first winding arrangement is connected to the switching devices belonging to one phase and switched in one direction. Each of the windings of the second winding arrangement is connected to the switching devices belonging to one phase and switched in the opposite direction. The star points of the two winding arrangements are connected via a direct current choke.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: March 9, 2010
    Assignee: Converteam Technology, Ltd.
    Inventors: Georg Moehlenkamp, Wolfgang Bach, Peter Hussels
  • Publication number: 20090278350
    Abstract: Described is a method for starting up a system for generating electrical power. The system includes a turbine that is mechanically connected to a generator, while the generator is electrically connected via a converter to a load, in particular to a power supply grid. The generator includes a total number of windings. With at least one embodiment of the method, a number of generator windings are combined at low rotational speeds of the turbine, wherein the combined number of windings is less than the total number of windings.
    Type: Application
    Filed: June 11, 2008
    Publication date: November 12, 2009
    Inventors: Georg Moehlenkamp, Aurelie Bocquel
  • Publication number: 20090278510
    Abstract: Described is a system for generating electrical power, which system includes a turbine that is mechanically connected to a generator, which in turn is connected via a multiphase transformer to a load. In at least one embodiment, at least two counter-connected switching devices of the converter are assigned to each phase of the transformer. The transformer is provided on the side facing the converter with two winding arrangements in a star connection. Each of the windings of the first winding arrangement is connected to the switching devices belonging to one phase and switched in one direction. Each of the windings of the second winding arrangement is connected to the switching devices belonging to one phase and switched in the opposite direction. The star points of the two winding arrangements are connected via a direct current choke.
    Type: Application
    Filed: June 11, 2008
    Publication date: November 12, 2009
    Inventors: Georg Moehlenkamp, Wolfgang Bach, Peter Hussels
  • Patent number: 7405490
    Abstract: A wind turbine includes a turbine rotor with at least one blade and a generator with a rotor and a stator. The turbine rotor is mechanically coupled with the rotor of the generator. A diode rectifier is electrically coupled to the stator of the generator. A direct current link is electrically coupled with the diode rectifier. A line converter is electrically coupled with the direct current link.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: July 29, 2008
    Assignee: Converteam GmbH
    Inventor: Georg Moehlenkamp
  • Patent number: 7190085
    Abstract: A wind turbine includes a turbine rotor with at least one blade and a generator with a rotor and a stator. The turbine rotor is mechanically coupled with the rotor of the generator. A diode rectifier is electrically coupled to the stator of the generator. A direct current link is electrically coupled with the diode rectifier. A line converter is electrically coupled with the direct current link.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: March 13, 2007
    Assignee: Alstom
    Inventor: Georg Moehlenkamp
  • Publication number: 20070029802
    Abstract: A wind turbine includes a turbine rotor with at least one blade and a generator with a rotor and a stator. The turbine rotor is mechanically coupled with the rotor of the generator. A diode rectifier is electrically coupled to the stator of the generator. A direct current link is electrically coupled with the diode rectifier. A line converter is electrically coupled with the direct current link.
    Type: Application
    Filed: October 4, 2006
    Publication date: February 8, 2007
    Inventor: Georg Moehlenkamp
  • Publication number: 20040201221
    Abstract: A wind turbine includes a turbine rotor with at least one blade and a generator with a rotor and a stator. The turbine rotor is mechanically coupled with the rotor of the generator. A diode rectifier is electrically coupled to the stator of the generator. A direct current link is electrically coupled with the diode rectifier. A line converter is electrically coupled with the direct current link.
    Type: Application
    Filed: May 21, 2003
    Publication date: October 14, 2004
    Inventor: Georg Moehlenkamp