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:
Mar. 02, 2021
Filed:
May. 28, 2019
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Bogdan Z. Kasztenny, Markham, CA;
Chadburn Troy Daniels, Moscow, ID (US);
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Abstract
Variable window filtered power system signals for electric power system monitoring and protection operations of an electric power system are provided herein. Upon detection of a power system disturbance, the filter window is decreased after a predetermined resize delay such that pre-disturbance samples are not included in the new window. As additional samples are obtained, the filter window grows to include new samples until the window reaches an initial filter window length. Gain and group delay correction factors accounting for window size and signal frequency are approximated.