Patents by Inventor Bernd Hartwig

Bernd Hartwig 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: 11581739
    Abstract: An arrangement for power distribution on a vessel, having: a first DC bus operating at a first medium voltage; at least one second DC bus operating at a second medium voltage and having no direct connection with the first DC bus; a first AC bus operating at a low voltage; a first inverter coupled between the first DC bus and the first AC bus for allowing power flow from the first DC bus to the first AC bus in a first operation mode; a second AC bus operating at the low voltage; a second inverter coupled between the second DC bus and the second AC bus for allowing power flow from the second DC bus to the second AC bus in the first operation mode; a low voltage connection system for selectively connecting or disconnecting the first AC bus and the second AC bus.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: February 14, 2023
    Assignees: SIEMENS ENERGY GLOBAL GMBH & CO. KG, SIEMENS ENERGY AS
    Inventors: Paul Fredrik Gjerpe, Bernd Hartwig, Marc Hiller, Wolfgang Voss
  • Publication number: 20170373502
    Abstract: An arrangement for power distribution on a vessel, having: a first DC bus operating at a first medium voltage; at least one second DC bus operating at a second medium voltage and having no direct connection with the first DC bus; a first AC bus operating at a low voltage; a first inverter coupled between the first DC bus and the first AC bus for allowing power flow from the first DC bus to the first AC bus in a first operation mode; a second AC bus operating at the low voltage; a second inverter coupled between the second DC bus and the second AC bus for allowing power flow from the second DC bus to the second AC bus in the first operation mode; a low voltage connection system for selectively connecting or disconnecting the first AC bus and the second AC bus.
    Type: Application
    Filed: December 11, 2015
    Publication date: December 28, 2017
    Applicant: Siemens Aktiengesellschaft
    Inventors: Paul Fredrik Gjerpe, Bernd Hartwig, Marc Hiller, Wolfgang Voss
  • Patent number: 8766477
    Abstract: At least one embodiment of the invention generally relates to a drive system for a facility having an alternating-current isolated network, in particular for a ship or an offshore platform, including a three-phase drive machine, which can be operated both as a motor and as a generator, and including a converter having a direct-current intermediate circuit having an intermediate circuit voltage. At least one embodiment of the invention aims to provide a way of avoiding undesired and/or impermissible voltage and/or frequency increases in the alternating-current isolated network.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: July 1, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Bernd Hartwig, Reinhard Vogel
  • Publication number: 20120043817
    Abstract: At least one embodiment of the invention generally relates to a drive system for a facility having an alternating-current isolated network, in particular for a ship or an offshore platform, including a three-phase drive machine, which can be operated both as a motor and as a generator, and including a converter having a direct-current intermediate circuit having an intermediate circuit voltage. At least one embodiment of the invention aims to provide a way of avoiding undesired and/or impermissible voltage and/or frequency increases in the alternating-current isolated network.
    Type: Application
    Filed: April 7, 2010
    Publication date: February 23, 2012
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Bernd Hartwig, Reinhard Vogel