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. 23, 2010
Filed:
Feb. 20, 2007
Ernst Scholtz, Raleigh, NC (US);
Stefan Thorburn, Vasteras, SE;
Mohamed Y. Haj-maharsi, Garner, NC (US);
Ernst Scholtz, Raleigh, NC (US);
Stefan Thorburn, Vasteras, SE;
Mohamed Y. Haj-Maharsi, Garner, NC (US);
ABB Research Ltd., Zurich, CH;
Abstract
A protection setting determiner () adaptively updates settings of protection functions in memory of a protection device () that protects a machine () that provides power to a power system (), wherein the settings are updated based at least in part upon sensed data acquired during operation of the machine (). A physical parameter determiner () receives the sensed data, which includes three-phase voltage and three-phase current values at the terminals of the machine (), and uses any suitable real-time or off-line parameter estimation technique (such as Kalman Filtering for an augmented state) to determine physical parameters of the machine () and the power system (). The protection setting determiner () uses the physical parameters to update the protection settings.