Patents by Inventor Young Gon Ryu

Young Gon Ryu 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).

  • Apparatus and method for extracting impedance parameters of three-phase motor
    Patent number: 10705145
    Abstract: A method of extracting impedance parameters of a three-phase motor utilizes a five-terminal network including first to third winding wires and opposite shaft ends. The method includes connecting two terminals, selected from among the winding wires and the shaft ends, to input and output terminals in order to measure voltage and current of the terminals and to extract input impedance parameters of the five-terminal network, extracting conversion parameters including voltage and current transfer matrices in a common mode, in which the winding wires are commonly connected to the input and output terminals, and in a differential mode, in which the winding wires are differentially connected to the input and output terminals, and calculating impedance parameters in a mixed mode, in which transfer impedance components for the shaft ends in the common mode and the differential mode are mixed, using the extracted input impedance parameters and conversion parameters.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: July 7, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Woong Chan Chae, Sang Hoon Moon, Jung Shik Kim, Young Jin Shin, Hyoung Jun Cho, Young Gon Ryu, Ki Jin Han
  • APPARATUS AND METHOD FOR EXTRACTING IMPEDANCE PARAMETERS OF THREE-PHASE MOTOR
    Publication number: 20190170825
    Abstract: A method of extracting impedance parameters of a three-phase motor utilizes a five-terminal network including first to third winding wires and opposite shaft ends. The method includes connecting two terminals, selected from among the winding wires and the shaft ends, to input and output terminals in order to measure voltage and current of the terminals and to extract input impedance parameters of the five-terminal network, extracting conversion parameters including voltage and current transfer matrices in a common mode, in which the winding wires are commonly connected to the input and output terminals, and in a differential mode, in which the winding wires are differentially connected to the input and output terminals, and calculating impedance parameters in a mixed mode, in which transfer impedance components for the shaft ends in the common mode and the differential mode are mixed, using the extracted input impedance parameters and conversion parameters.
    Type: Application
    Filed: November 8, 2018
    Publication date: June 6, 2019
    Inventors: Woong Chan Chae, Sang Hoon Moon, Jung Shik Kim, Young Jin Shin, Hyoung Jun Cho, Young Gon Ryu, Ki Jin Han