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. 03, 2009
Filed:
Oct. 06, 2006
Charles H. Wells, Emerald Hills, CA (US);
Charles H. Wells, Emerald Hills, CA (US);
OSIsoft, Inc., San Leandro, CA (US);
Abstract
In order to make accurate predictions on whether or not a power grid is stable, it is desirable to know the frequency and phase of at least each 'control area' in the power grid. Each control area will ideally have power generation matched with its load. Rather than measure thousands of data points at low resolution in order to calculate potential grid instabilities, one may make few highly accurate measurements at low voltage to predict frequency and phase of high voltage transmission lines. Predicted data at the transmission points can then be used to calculate the relative stability of the power grid. The method includes the use of non-linear Luenberger observers and Kalman filters. The method can also be used to compute 'Virtual measurements' for any component in the connected grid based on lower cost or easier to obtain measurement at other points on network. This method applies to any connected network of components.