Invention Grant
US09046588B2 Method and system for detecting an arc fault in a photovoltaic power system
有权
用于检测光伏电力系统中的电弧故障的方法和系统
- Patent Title: Method and system for detecting an arc fault in a photovoltaic power system
- Patent Title (中): 用于检测光伏电力系统中的电弧故障的方法和系统
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Application No.: US14105377Application Date: 2013-12-13
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Publication No.: US09046588B2Publication Date: 2015-06-02
- Inventor: Holger Behrends , Sebastian Bieniek , Thorsten Buelo , Markus Hopf , Gerd Bettenwort , Marcel Kratochvil , Christopher Merz , Oliver Prior
- Applicant: SMA Solar Technology AG
- Applicant Address: DE Niestetal
- Assignee: SMA Solar Technology AG
- Current Assignee: SMA Solar Technology AG
- Current Assignee Address: DE Niestetal
- Agency: Eschweiler & Associates, LLC
- Main IPC: H02H3/00
- IPC: H02H3/00 ; G01R31/40 ; H02H1/00 ; H01L31/02 ; H02S50/10 ; H02H7/20
Abstract:
A method for detecting an arc fault in a photovoltaic power circuit includes operating a photovoltaic generator at a first working point. A first signal related to a DC-current and/or a DC-voltage in the power circuit is determined. The first signal is analyzed and it is determined whether the signal indicates the presence of an electric arc in the power circuit. If so, the photovoltaic generator is operated at a second working point and a second signal related to the DC-current and/or the DC-voltage is determined. The first and second signals are then compared; and the occurrence of an arc fault in the power circuit is selectively signaled based on the comparison.
Public/Granted literature
- US20140119072A1 Method and System for Detecting an Arc Fault in a Photovoltaic Power System Public/Granted day:2014-05-01
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