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    • System and method for impedance measurement using chirp signal injection 

      Virginia Tech Intellectual Properties, Inc.; Huntington Ingalls Incorporated; Boroyevich, Dushan; Mattavelli, Paolo; Belkhayat, Mohamed; Shen, Zhiyu; Jaksic, Marko D.; Verhulst, Jacob (United States Patent and Trademark Office, 2017-04-11)
      A method for impedance measurement using chirp signal injection is provided. The method includes injecting at least one chirp signal into the three-phase AC system, and collecting at least one response to the at least one ...
    • System and method for impedance measurement using series and shunt injection 

      Virginia Tech Intellectual Properties, Inc.; Huntington Ingalls Incorporated; Boroyevich, Dushan; Mattavelli, Paolo; Belkhayat, Mohamed; Shen, Zhiyu; Jaksic, Marko D.; Verhulst, Jacob (United States Patent and Trademark Office, 2017-02-07)
      A method for impedance measurement in a three-phase AC system is provided. The method includes injecting a shunt perturbation signal into the three-phase AC system and collecting a response to the shunt perturbation signal, ...