Patents by Inventor Kyoung-Min SON

Kyoung-Min SON 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: 9448263
    Abstract: A power quality monitoring apparatus is developed for a railway power system. The apparatus is calculating the energy flow and the power consumption and recording the by using the voltage and current sensors at AC and DC power source in the various industrial fields. The voltage and current phases are detected for the AC power. The direction of current is detected to calculate the power consumption for the DC power. Then, the detected data is analyzed. It is possible to monitor the variation of the voltages and current values of the railway vehicle in real time. It is possible to display the variations of the vehicle loads, the AC power output, the voltage and current value fluctuations, the power consumption and power flows in a form of the graphic or text format. Thereby, it is possible to easily understand the overall status of the overhead line's environment.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: September 20, 2016
    Inventors: Eun-Kyu Lee, Tae-Suk Kim, Kyoung-Min Kwon, Kyoung-Min Son, Se-Wan Pyo
  • Publication number: 20130166232
    Abstract: A power quality monitoring apparatus is developed for a railway power system. The apparatus is calculating the energy flow and the power consumption and recording the by using the voltage and current sensors at AC and DC power source in the various industrial fields. The voltage and current phases are detected for the AC power. The direction of current is detected to calculate the power consumption for the DC power. Then, the detected data is analyzed. It is possible to monitor the variation of the voltages and current values of the railway vehicle in real time. It is possible to display the variations of the vehicle loads, the AC power output, the voltage and current value fluctuations, the power consumption and power flows in a form of the graphic or text format. Thereby, it is possible to easily understand the overall status of the overhead line's environment.
    Type: Application
    Filed: March 14, 2012
    Publication date: June 27, 2013
    Inventors: Eun Kyu LEE, Tae-Suk KIM, Kyoung-Min KWON, Kyoung-Min SON, Se-Wan PYO