Patents by Inventor Pei Zhange

Pei Zhange 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).

  • Application of phasor measurement units (PMU) for controlled system separation
    Patent number: 8606422
    Abstract: This invention relates to a PMU-based controlled system separation method to protect against a catastrophic blackout. The method includes the steps of performing an offline analysis of an electrical transmission network to partition generators into a number of coherent groups, performing online monitoring of the transmission network to determine a separation interface and frequencies and damping ratios of dominant inter-area modes, and estimating the risk of system separation to perform real-time control.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: December 10, 2013
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Kai Sun, Kyeon Hur, Pei Zhange