Patents by Inventor Shiming FANG

Shiming FANG 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).

  • System and method of predicting the presence of an out-of-step condition in a power system
    Patent number: 11223203
    Abstract: In the field of power system stability there is provided a method of predicting the presence of an out-of-step condition in a power system that includes a plurality of generators, the method including the steps of: (a) obtaining a differential value ({tilde over (?)}COIk) between a rotor angle (?k) of an individual one of the plurality of generators and an equivalent rotor angle (?COIk) of the centre of inertia of the remainder of the plurality of generators; (b) processing the differential value ({tilde over (?)}COIk) to determine whether the differential value ({tilde over (?)}COIk) is predicted to reach a predefined reference threshold (?threshold); and (c) predicting the presence of the out-of-step condition in the power system if the differential value ({tilde over (?)}COIk) is predicted to reach the predefined reference threshold (?threshold).
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: January 11, 2022
    Assignee: General Electric Technology GmbH
    Inventors: Hengxu Ha, Shiming Fang, Sankara Subramanian Sri Gopala Krishna Murthi
  • IMPROVEMENTS IN OR RELATING TO POWER SYSTEMS
    Publication number: 20190044339
    Abstract: In the field of power system stability there is provided a method of predicting the presence of an out-of-step condition in a power system that includes a plurality of generators, the method including the steps of: (a) obtaining a differential value (?COIk) between a rotor angle (?k) of an individual one of the plurality of generators and an equivalent rotor angle (?COIk) of the centre of inertia of the remainder of the plurality of generators; (b) processing the differential value (?COIk) to determine whether the differential value (?COIk) is predicted to reach a predefined reference threshold (?threshold); and (c) predicting the presence of the out-of-step condition in the power system if the differential value (?COIk) is predicted to reach the predefined reference threshold (?threshold).
    Type: Application
    Filed: February 14, 2017
    Publication date: February 7, 2019
    Inventors: Hengxu HA, Shiming FANG, Sankara Subramanian SRI GOPALA KRISHNA MURTHI