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:
Nov. 29, 2011
Filed:
Sep. 29, 2008
Yan Pan, Tallahassee, FL (US);
Paulo Silveira, Itajubá, BR;
Michael Steurer, Crawfordville, FL (US);
Thomas Baldwin, Tallahassee, FL (US);
Paulo Ribeiro, Grand Rapids, MI (US);
Yan Pan, Tallahassee, FL (US);
Paulo Silveira, Itajubá, BR;
Michael Steurer, Crawfordville, FL (US);
Thomas Baldwin, Tallahassee, FL (US);
Paulo Ribeiro, Grand Rapids, MI (US);
Abstract
A method for locating phase to ground faults in DC distribution systems. The method includes utilizing wavelet analysis using Multi-Resolution Analysis (MRA) as a signal processing tool for recognition of characteristic features in the voltage signal. The voltage signal contains characteristic information in the high frequency range above the switching frequencies of the PE converters which allows for localization of the fault.