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. 10, 2013
Filed:
Jan. 25, 2010
Douglas C. Folts, Baraboo, WI (US);
James Maguire, Andover, MA (US);
Jie Yuan, South Grafton, MA (US);
Alexis P. Malozemoff, Lexington, MA (US);
Douglas C. Folts, Baraboo, WI (US);
James Maguire, Andover, MA (US);
Jie Yuan, South Grafton, MA (US);
Alexis P. Malozemoff, Lexington, MA (US);
American Superconductor Corporation, Devens, MA (US);
Abstract
A method of controlling fault currents within a utility power grid is provided. The method may include coupling a superconducting electrical path between a first and a second node within the utility power grid and coupling a non-superconducting electrical path between the first and second nodes within the utility power grid. The superconducting electrical path and the non-superconducting electrical path may be electrically connected in parallel. The superconducting electrical path may have a lower series impedance, when operated below a critical current level, than the non-superconducting electrical path. The superconducting electrical path may have a higher series impedance, when operated at or above the critical current level, than the non-superconductor electrical path.