Patents by Inventor Ryan Triadhitama Bin Marwan AWALOEDDIN

Ryan Triadhitama Bin Marwan AWALOEDDIN 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).

  • Control device, control method of secondary excitation device, and variable speed pumped-storage generating system
    Patent number: 9912272
    Abstract: According to one embodiment, there is provided a control device of a secondary excitation device which supplies a rotary machine with a voltage or current of a variable frequency. The control device includes a harmonic frequency calculation unit which calculates a frequency of a specific harmonic generated on a primary side of the rotary machine by using a slip frequency or rotation speed of the rotary machine and a carrier frequency of the secondary excitation device, and a carrier frequency correction unit which corrects the carrier frequency of the secondary excitation device such that the frequency of the specific harmonic calculated by the harmonic frequency calculation unit falls within a given band.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: March 6, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryan Triadhitama Bin Marwan Awaloeddin, Kiyoshi Kusunoki, Kentaro Kinoshita, Hiroyuki Kikuchi
  • CONTROL DEVICE, CONTROL METHOD OF SECONDARY EXCITATION DEVICE, AND VARIABLE SPEED PUMPED-STORAGE GENERATING SYSTEM
    Publication number: 20170012561
    Abstract: According to one embodiment, there is provided a control device of a secondary excitation device which supplies a rotary machine with a voltage or current of a variable frequency. The control device includes a harmonic frequency calculation unit which calculates a frequency of a specific harmonic generated on a primary side of the rotary machine by using a slip frequency or rotation speed of the rotary machine and a carrier frequency of the secondary excitation device, and a carrier frequency correction unit which corrects the carrier frequency of the secondary excitation device such that the frequency of the specific harmonic calculated by the harmonic frequency calculation unit falls within a given band.
    Type: Application
    Filed: June 27, 2016
    Publication date: January 12, 2017
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Ryan Triadhitama Bin Marwan AWALOEDDIN, Kiyoshi KUSUNOKI, Kentaro KINOSHITA, Hiroyuki KIKUCHI