Patents by Inventor Sukwhan KO

Sukwhan KO 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).

  • Photovoltaic system having fault diagnosis apparatus, and fault diagnosis method for photovoltaic system
    Patent number: 10389300
    Abstract: The present invention relates to a fault diagnosis for a photovoltaic system. A fault diagnosis apparatus includes a temperature sensor unit measuring both an internal temperature value of the junction box and a surface temperature value of the solar module; a voltage sensor provided in the junction box; and an operation unit determining where a fault occurs among the solar module, an inside of the junction box, and the inverter by comparing measured values of the temperature sensor unit with a measured value of the voltage sensor. According to the present invention, initial investment cost is inexpensive. In addition, it is possible to detect solar module faults that are difficult to be checked by the naked eye.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: August 20, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Sukwhan Ko, Youngseok Jung, Gi-Hwan Kang, Youngchul Ju, Hyemi Hwang, Junghun So, Hee-eun Song
  • PHOTOVOLTAIC SYSTEM HAVING FAULT DIAGNOSIS APPARATUS, AND FAULT DIAGNOSIS METHOD FOR PHOTOVOLTAIC SYSTEM
    Publication number: 20170063304
    Abstract: The present invention relates to a fault diagnosis for a photovoltaic system. A fault diagnosis apparatus includes a temperature sensor unit measuring both an internal temperature value of the junction box and a surface temperature value of the solar module; a voltage sensor provided in the junction box; and an operation unit determining where a fault occurs among the solar module, an inside of the junction box, and the inverter by comparing measured values of the temperature sensor unit with a measured value of the voltage sensor. According to the present invention, initial investment cost is inexpensive. In addition, it is possible to detect solar module faults that are difficult to be checked by the naked eye.
    Type: Application
    Filed: October 8, 2015
    Publication date: March 2, 2017
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Sukwhan KO, Youngseok JUNG, Gi-Hwan KANG, Youngchul JU, Hyemi HWANG, Junghun SO, Hee-eun SONG