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:
Jan. 08, 1991
Filed:
Aug. 03, 1989
Pierre Pelletier, Boucherville, CA;
Hydro-Quebec, Montreal, CA;
Abstract
The present disclosure describes a method and a system for interconnecting a first and a second three-phase alternating electric networks. The system comprises a first transformer having secondary windings for producing a first and a second secondary three-phase voltages, each phase of the first secondary voltage being out of phase with respect to one of the phases of the second three-phase voltage by a first angle; a second transformer having secondary windings for producing a third and a fourth secondary, three-phase voltages, each phase of the third secondary voltage being out of phase with respect to one of the phases of said fourth voltage by a second angle different from said first angle; a plurality of variable reactive impedances for establishing between each phase of the first and second voltages and two phases of said third and fourth voltages, two single-phase interconnections of variable susceptances, respectively; and a regulator for operating the variable reactive impedances to vary the susceptances of the interconnections so as to establish a desired transfer of electric active power from one of the first and second networks to the other network while maintaining at a desired level an electric reactive power engaged in said transfer of active power.