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Title: Methods for locating ground faults and insulation degradation condition in energy conversion systems

Abstract

Methods for determining a ground fault or insulation degradation condition within energy conversion systems are described. A method for determining a ground fault within an energy conversion system may include, in part, a comparison of baseline waveform of differential current to a waveform of differential current during operation for a plurality of DC current carrying conductors in an energy conversion system. A method for determining insulation degradation within an energy conversion system may include, in part, a comparison of baseline frequency spectra of differential current to a frequency spectra of differential current transient at start-up for a plurality of DC current carrying conductors in an energy conversion system. In one embodiment, the energy conversion system may be a photovoltaic system.

Inventors:
; ; ;
Issue Date:
Research Org.:
GE Global Research, Niskayuna, New York (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1209350
Patent Number(s):
9103865
Application Number:
13/726,730
Assignee:
General Electric Company (Niskayuna, NY)
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02S - GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
H - ELECTRICITY H02 - GENERATION H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
DOE Contract Number:  
EE0000572
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Dec 26
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION

Citation Formats

Agamy, Mohamed, Elasser, Ahmed, Galbraith, Anthony William, and Harfman Todorovic, Maja. Methods for locating ground faults and insulation degradation condition in energy conversion systems. United States: N. p., 2015. Web.
Agamy, Mohamed, Elasser, Ahmed, Galbraith, Anthony William, & Harfman Todorovic, Maja. Methods for locating ground faults and insulation degradation condition in energy conversion systems. United States.
Agamy, Mohamed, Elasser, Ahmed, Galbraith, Anthony William, and Harfman Todorovic, Maja. Tue . "Methods for locating ground faults and insulation degradation condition in energy conversion systems". United States. https://www.osti.gov/servlets/purl/1209350.
@article{osti_1209350,
title = {Methods for locating ground faults and insulation degradation condition in energy conversion systems},
author = {Agamy, Mohamed and Elasser, Ahmed and Galbraith, Anthony William and Harfman Todorovic, Maja},
abstractNote = {Methods for determining a ground fault or insulation degradation condition within energy conversion systems are described. A method for determining a ground fault within an energy conversion system may include, in part, a comparison of baseline waveform of differential current to a waveform of differential current during operation for a plurality of DC current carrying conductors in an energy conversion system. A method for determining insulation degradation within an energy conversion system may include, in part, a comparison of baseline frequency spectra of differential current to a frequency spectra of differential current transient at start-up for a plurality of DC current carrying conductors in an energy conversion system. In one embodiment, the energy conversion system may be a photovoltaic system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {8}
}

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