Patents by Inventor Shao-jun Zheng

Shao-jun Zheng 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).

  • Gas turbine generating apparatus
    Patent number: 7061211
    Abstract: A gas turbine generating apparatus according to the present invention comprises a gas turbine capable of a high-speed operation, a permanent-magnet-type generator driven at a high speed by the gas turbine, an inverter device (5) for converting alternating-current power generated by the generator into commercial alternating-current power, and a system-interconnection device (9) for interconnecting output of the inverter device to a commercial AC power supply system (10). The system-interconnection device controls the inverter device based on voltage of the commercial AC power supply system as a criterion such that output current of the inverter device is in phase with the voltage or out of phase with the voltage by a constant phase difference.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: June 13, 2006
    Assignees: Ebara Corporation, Ebara Densan Ltd.
    Inventors: Motoyasu Satoh, Seiichi Ishihara, Noboru Kinoshita, Takahide Ozawa, Shao-jun Zheng, Terence Mckelvey, Tadashi Kataoka
  • Gas turbine generating apparatus
    Publication number: 20050179420
    Abstract: A gas turbine generating apparatus according to the present invention comprises a gas turbine capable of a high-speed operation, a permanent-magnet-type generator driven at a high speed by the gas turbine, an inverter device (5) for converting alternating-current power generated by the generator into commercial alternating-current power, and a system-interconnection device (9) for interconnecting output of the inverter device to a commercial AC power supply system (10). The system-interconnection device controls the inverter device based on voltage of the commercial AC power supply system as a criterion such that output current of the inverter device is in phase with the voltage or out of phase with the voltage by a constant phase difference.
    Type: Application
    Filed: March 15, 2005
    Publication date: August 18, 2005
    Applicants: Ebara Corporation, EBARA DENSAN LTD.
    Inventors: Motoyasu Satoh, Seiichi Ishihara, Noboru Kinoshita, Takahide Ozawa, Shao-Jun Zheng, Terence Mckelvey, Tadashi Kataoka
  • Gas turbine generator
    Patent number: 6888263
    Abstract: A gas turbine generating apparatus according to the present invention comprises a gas turbine capable of a high-speed operation, a permanent-magnet-type generator driven at a high speed by the gas turbine, an inverter device (5) for converting alternating-current power generated by the generator into commercial alternating-current power, and a system-interconnection device (9) for interconnecting output of the inverter device to a commercial AC power supply system (10). The system-interconnection device controls the inverter device based on voltage of the commercial AC power supply system as a criterion such that output current of the inverter device is in phase with the voltage or out of phase with the voltage by a constant phase difference.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: May 3, 2005
    Assignees: Ebara Corporation, Ebara Densan Ltd.
    Inventors: Motoyasu Satoh, Seiichi Ishihara, Noboru Kinoshita, Takahide Ozawa, Shao-jun Zheng, Terence Mckelvey, Tadashi Kataoka
  • Gas turbine generator
    Publication number: 20040178640
    Abstract: A gas turbine generating apparatus according to the present invention comprises a gas turbine capable of a high-speed operation, a permanent-magnet-type generator driven at a high speed by the gas turbine, an inverter device (5) for converting alternating-current power generated by the generator into commercial alternating-current power, and a system-interconnection device (9) for interconnecting output of the inverter device to a commercial AC power supply system (10). The system-interconnection device controls the inverter device based on voltage of the commercial AC power supply system as a criterion such that output current of the inverter device is in phase with the voltage or out of phase with the voltage by a constant phase difference.
    Type: Application
    Filed: April 6, 2004
    Publication date: September 16, 2004
    Inventors: Motoyasu Satoh, Seiichi Ishihara, Noboru Kinoshita, Takahide Ozawa, Shao-jun Zheng, Terence Mckelvey, Tadashi Kataoka