Patents by Inventor Shaogui AL

Shaogui AL 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).

  • Current limiting device, current limiter and current limiting system for power grid
    Patent number: 9640984
    Abstract: A current limiting device for a power grid includes a first current limiting reactor; a first smart fast switch connected with the first current limiting reactor in parallel; a current transformer sleeved on a bus bar located on one side of a circuit resulting from the parallel connection of the first current limiting reactor with the first smart fast switch to monitor the current in the bus bar in real time; and a controller connected with the current transformer to control the switch-off of the first smart fast switch when the current in the bus bar is higher than a first preset value and the switch-on of the first smart fast switch when the current in the bus bar is smaller than a second preset value, wherein the first preset value is higher than the second preset value. The current limiting device improves the operational reliability of a power grid.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: May 2, 2017
    Assignees: STATE GRID NINGXIA ELECTRIC POWER TECHNICAL RESEARCH INSTITUTE, ANHUI HUIDIAN SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Shaogui Al, Chuan Wang, Yongning Huang, Yiping Fan, Guoyong Zhang, Yanjun Li, Ning Pan, Shuang Zhang
  • CURRENT LIMITING DEVICE, CURRENT LIMITER AND CURRENT LIMITING SYSTEM FOR POWER GRID
    Publication number: 20150318688
    Abstract: A current limiting device for a power grid includes a first current limiting reactor; a first smart fast switch connected with the first current limiting reactor in parallel; a current transformer sleeved on a bus bar located on one side of a circuit resulting from the parallel connection of the first current limiting reactor with the first smart fast switch to monitor the current in the bus bar in real time; and a controller connected with the current transformer to control the switch-off of the first smart fast switch when the current in the bus bar is higher than a first preset value and the switch-on of the first smart fast switch when the current in the bus bar is smaller than a second preset value, wherein the first preset value is higher than the second preset value. The current limiting device improves the operational reliability of a power grid.
    Type: Application
    Filed: January 9, 2013
    Publication date: November 5, 2015
    Inventors: Shaogui AL, Chuan WANG, Yongning HUANG, Yiping FAN, Guoyong ZHANG, Yanjun LI, Ning PAN, Shuang ZHANG