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:
Aug. 18, 2015
Filed:
Jun. 08, 2011
Jens Klein, Goettingen, DE;
Bjoern Magnussen, Kassel, DE;
Andreas Strusch, Ihringshausen, DE;
Alexander Smith, New York, NY (US);
William Gaggioli, Mission Viejo, CA (US);
Jens Klein, Goettingen, DE;
Bjoern Magnussen, Kassel, DE;
Andreas Strusch, Ihringshausen, DE;
Alexander Smith, New York, NY (US);
William Gaggioli, Mission Viejo, CA (US);
SMA Solar Technology AG, Niestetal, DE;
Abstract
For recognizing shadowing events affecting a photovoltaic module, electric power produced by the module is recorded. For each position of the sun on a present day an expected value of the electric power is defined. Further, an ideal power course of the electric power over the present day is determined by fitting a curve that corresponds to cloudless sun without shadow casting obstacles to peak values of the electric power recorded for same positions of the sun during a plurality of previous days. For all positions of the sun at which the electric power produced on the present day falls short of the ideal power course a shadowing probability of not less than zero is defined whose magnitude depends on the level of accord of the electric power produced on the present day with the expected value at the position of the sun.