Apparatus and method for monitoring a photovoltaic system

US9709623B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9709623-B2
Application numberUS-201313741534-A
CountryUS
Kind codeB2
Filing dateJan 15, 2013
Priority dateJul 20, 2010
Publication dateJul 18, 2017
Grant dateJul 18, 2017

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Abstract

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The apparatus for monitoring a photovoltaic system includes an incoupling circuit configured to couple an AC voltage test signal into the photovoltaic system, and an outcoupling circuit configured to outcouple a response signal, which is associated with the test signal, from the photovoltaic system, and an evaluation device, which is connected to the outcoupling circuit. The evaluation device is configured to identify events which adversely affect correct operation of the photovoltaic system. The apparatus is distinguished in that the outcoupling circuit includes a first transformer and a second transformer, each having a respective primary winding and each having a respective secondary winding which is connected to the evaluation device, with the primary windings of the first and second transformers being arranged in different electrical lines between a generator and an inverter in the photovoltaic system. The disclosure also relates to a corresponding method for monitoring a photovoltaic system.

First claim

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The invention claimed is: 1. An apparatus for monitoring a photovoltaic system, comprising: an incoupling circuit to couple an AC voltage test signal into the photovoltaic system when coupled thereto, an outcoupling circuit to outcouple a response signal, which is associated with the test signal, from the photovoltaic system, and an evaluation device, which is connected to the outcoupling circuit, to identify events which adversely affect correct operation of the photovoltaic…

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What does patent US9709623B2 cover?
The apparatus for monitoring a photovoltaic system includes an incoupling circuit configured to couple an AC voltage test signal into the photovoltaic system, and an outcoupling circuit configured to outcouple a response signal, which is associated with the test signal, from the photovoltaic system, and an evaluation device, which is connected to the outcoupling circuit. The evaluation device i…
Who is the assignee on this patent?
Sma Solar Technology Ag
What technology area does this patent fall under?
Primary CPC classification G01R31/2637. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jul 18 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).