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. 15, 2015
Filed:
Sep. 10, 2012
Rolando Burgos, Blacksburg, VA (US);
Dushan Boroyevich, Blacksburg, VA (US);
Fred Wang, Knoxville, TN (US);
Kamiar Karimi, Kirkland, WA (US);
Rolando Burgos, Blacksburg, VA (US);
Dushan Boroyevich, Blacksburg, VA (US);
Fred Wang, Knoxville, TN (US);
Kamiar Karimi, Kirkland, WA (US);
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Abstract
Approximating loci of eigenvalues or characteristic gains of a return ratio matrix of a model of a multi-phase power converter circuit by the loci of the d-d and q-q elements of said synchronous frame of reference applied to said model, allows determination and assessment of stability of the circuit or forbidden operational parameters of the combination of an AC power source and a power converter at an interface thereof by application of a standard Nyquist stability criterion.