Patents by Inventor Baike Shen

Baike Shen 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).

  • Method and system for controlling a doubly-fed induction machine
    Patent number: 8476871
    Abstract: The present invention relates to a method and system for controlling a doubly-fed induction machine. In operation a rotor current vector is processed with a rotor position estimate vector. A scalar error quantity is the determined in dependence upon a stator current vector and the processed rotor current vector. The scalar error quantity is integrated and an estimate of the rotor angular frequency is determined in dependence upon the integrated scalar error quantity. To obtain a rotor position estimate, the estimate of the rotor angular frequency is integrated and a rotor position estimate vector is determined in dependence upon the rotor position estimate. The rotor position estimate vector is then provided for processing the rotor current vector. As output signals a signal indicative of the rotor position estimate vector and a signal indicative of the estimate of the rotor angular frequency are provided for controlling the doubly-fed induction machine.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: July 2, 2013
    Assignee: The Royal Institution for the Advancement of Learning/McGill University
    Inventors: Boon T. Ooi, Baike Shen, Victor Low
  • METHOD AND SYSTEM FOR CONTROLLING A DOUBLY-FED INDUCTION MACHINE
    Publication number: 20100114388
    Abstract: The present invention relates to a method and system for controlling a doubly-fed induction machine. In operation a rotor current vector is processed with a rotor position estimate vector. A scalar error quantity is the determined in dependence upon a stator current vector and the processed rotor current vector. The scalar error quantity is integrated and an estimate of the rotor angular frequency is determined in dependence upon the integrated scalar error quantity. To obtain a rotor position estimate, the estimate of the rotor angular frequency is integrated and a rotor position estimate vector is determined in dependence upon the rotor position estimate. The rotor position estimate vector is then provided for processing the rotor current vector. As output signals a signal indicative of the rotor position estimate vector and a signal indicative of the estimate of the rotor angular frequency are provided for controlling the doubly-fed induction machine.
    Type: Application
    Filed: November 28, 2007
    Publication date: May 6, 2010
    Applicant: The Royal Institution for the Advancement of Learning/McGill University
    Inventors: Boon Teck Ooi, Baike Shen, Victor Low