The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2017
Filed:
Jul. 30, 2013
Huntington Ingalls, Inc., Newport News, VA (US);
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Jacob Verhulst, Newport News, VA (US);
Mohamed Belkhayat, Annandale, VA (US);
Zhiyu Shen, Blacksburg, VA (US);
Marko Jaksic, Blacksburg, VA (US);
Paolo Mattavelli, Blacksburg, VA (US);
Dushan Boroyevich, Blacksburg, VA (US);
Huntington Ingalls Incorporated, Newport News, VA (US);
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Abstract
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 chirp signal. The method further includes transferring the at least one response from abc coordinates to dq coordinates. At least one impedance is calculated based on the at least one response to the at least one chirp signal.