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:
Oct. 11, 2005
Filed:
Nov. 25, 2003
Jih-sheng Lai, Blacksburg, VA (US);
Arshad Mansoor, Oak Ridge, TN (US);
Arindam Maitra, Knoxville, TN (US);
Frank Goodman, Palo Alto, CA (US);
Jih-Sheng Lai, Blacksburg, VA (US);
Arshad Mansoor, Oak Ridge, TN (US);
Arindam Maitra, Knoxville, TN (US);
Frank Goodman, Palo Alto, CA (US);
Electric Power Research Institute, Palo Alto, CA (US);
Abstract
A multifunction hybrid intelligent universal transformer includes a conventional transformer coupled with power electronics on the secondary side to enhance the functionality of power conversion. The universal transformer includes features for overcoming the deficiencies associated with conventional transformers, including voltage sag compensation, instantaneous voltage regulation, outage compensation, capacitor switching protection, harmonic compensation, single-phasing protection, DC output, and variable frequency output.