Patents by Inventor Harald Kjesbu

Harald Kjesbu 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: 11146100
    Abstract: A power supply system has a primary power source and an energy storage system. The primary power source is adapted to supply power on demand to a load. One or more energy storage modules of the energy storage system are adapted to receive regenerative power from the load. The power supply system further includes a converter connected between the load, the energy storage system; and the primary power source, the converter has a three phase voltage source converter and an additional two pulse bridge. A blocking diode is connected between the load and the converter.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: October 12, 2021
    Assignee: SIEMENS ENERGY AS
    Inventors: Rune B. Andersen, Harald Kjesbu, Haavard Lund
  • Patent number: 10910836
    Abstract: An electrical energy distribution system for a vessel or platform with at least a primary energy source comprising an AC generator. A first output of the AC generator is coupled to a first DC bus via a transformer and an AC to DC converter and a second output of the AC generator is separately coupled to a second DC bus via a rectifier. The second DC bus is operable at a first voltage level and is connected to one or more primary consumers. The first DC bus is operable at a second voltage level, lower than the first voltage level and is connected to secondary consumers. In the event of the output of the AC generator to the primary consumers on the first DC bus being insufficient, energy from electric energy storage elements is supplied to the primary consumers via the rectifier and the first DC bus.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: February 2, 2021
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Espen Haugan, Harald Kjesbu, Alf Olav Valen
  • Publication number: 20200185917
    Abstract: An electrical energy distribution system for a vessel or platform with at least a primary energy source comprising an AC generator. A first output of the AC generator is coupled to a first DC bus via a transformer and an AC to DC converter and a second output of the AC generator is separately coupled to a second DC bus via a rectifier. The second DC bus is operable at a first voltage level and is connected to one or more primary consumers. The first DC bus is operable at a second voltage level, lower than the first voltage level and is connected to secondary consumers. In the event of the output of the AC generator to the primary consumers on the first DC bus being insufficient, energy from electric energy storage elements is supplied to the primary consumers via the rectifier and the first DC bus.
    Type: Application
    Filed: April 5, 2018
    Publication date: June 11, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: Espen Haugan, Harald Kjesbu, Alf Olav Valen
  • Publication number: 20200144853
    Abstract: A power supply system has a primary power source and an energy storage system. The primary power source is adapted to supply power on demand to a load. One or more energy storage modules of the energy storage system are adapted to receive regenerative power from the load. The power supply system further includes a converter connected between the load, the energy storage system; and the primary power source, the converter has a three phase voltage source converter and an additional two pulse bridge. A blocking diode is connected between the load and the converter.
    Type: Application
    Filed: May 17, 2018
    Publication date: May 7, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: Rune B. Andersen, Harald Kjesbu, Haavard Lund
  • Publication number: 20170373498
    Abstract: A stored electric energy distribution arrangement for distribution of stored electric energy on a vessel having one or more AC consumers, in the event of failure of a primary electric energy supply to the AC consumers has a DC-circuit. The DC circuit has a plurality of backup electric energy storage elements connected in a ring, for supplying stored electric energy to one or more AC consumers in the event of failure of the primary electric energy supply. A plurality of breaker systems are provided in the DC circuit for disconnecting one or more backup electric energy storage elements from the DC-circuit, in the event of a fault associated with that backup element.
    Type: Application
    Filed: January 22, 2016
    Publication date: December 28, 2017
    Applicant: Siemens Aktiengesellschaft
    Inventors: Espen Haugan, Harald Kjesbu