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:
Sep. 22, 2015
Filed:
Sep. 14, 2012
Gerald Francis, Silver Spring, MD (US);
Rolando Burgos, Blacksburg, VA (US);
Dushan Boroyevich, Blacksburg, VA (US);
Fred Wang, Knoxville, TN (US);
Zhiyu Shen, Blacksburg, VA (US);
Paolo Mattavelli, Blacksburg, VA (US);
Kamiar Karimi, Kirkland, WA (US);
Sheau-wei Johnny Fu, Bellevue, WA (US);
Gerald Francis, Silver Spring, MD (US);
Rolando Burgos, Blacksburg, VA (US);
Dushan Boroyevich, Blacksburg, VA (US);
Fred Wang, Knoxville, TN (US);
Zhiyu Shen, Blacksburg, VA (US);
Paolo Mattavelli, Blacksburg, VA (US);
Kamiar Karimi, Kirkland, WA (US);
Sheau-Wei Johnny Fu, Bellevue, WA (US);
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Abstract
A controller and infrastructure for an impedance analyzer measures responses to perturbations to respective phases of a multi-phase system at an interface between stages thereof (which may be considered as a source and load in regard to each other), such as a multi-phase electrical power system, to determine a transfer function for each phase of the multi-phase system from which the impedance of each of the source and load can be calculated, particularly for assessing the stability of the multi-phase system.