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:
Dec. 28, 1976
Filed:
Dec. 23, 1974
Applicant:
Inventors:
Laszlo Gyugyi, Pittsburgh, PA (US);
Francis T Thompson, Murrysville, PA (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
323119 ;
Abstract
A control circuit for a static VAR generator measures load current on consecutive half cycles. This information together with voltage information is used to determine the firing angles of the VAR generator thyristors for providing the required compensator currents. The total computation time for determining the firing angles in each succeeding half cycle takes no longer than the length of time of the last complete half cycle immediately preceding the firing of the thyristor.