Determining insulation resistance for photovoltaics
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Dec 23, 2014
filing date -
Dec 27, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Method and device for determining an insulation resistance RISO of a photovoltaic system (1) with respect to earth potential (EP), comprising a DC-DC converter unit (4) which converts a first DC voltage generated by the photovoltaic generator (2) into a second DC voltage which is applied to an intermediate circuit (5) that temporarily stores the electrical energy, supplied by the photovoltaic generator (2), for a DC-AC converter unit (6) connected thereto, wherein the intermediate circuit (5) contains a reference node (BK) having an adjustable reference potential (BP), and comprising a measuring unit (7) which picks up the measuring voltages between the reference potential (BP) and the earth potential (EP) at different reference potentials (BP), and an evaluation unit (8) which evaluates the measuring voltages that have been picked up in order to determine the insulation resistance of the photovoltaic generator (2) of the photovoltaic system (1).
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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FRONIUS INTERNATIONAL GMBH | 4643 PETTENBACH |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Oberzaucher, Friedrich | Wels, AT | 17 | 402 |
# of filed Patents : 17 Total Citations : 402 | |||
Reiter, Gerhard | Laakirchen, AT | 12 | 75 |
# of filed Patents : 12 Total Citations : 75 |
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Patent Citation Ranking
- 2 Citation Count
- G01R Class
- 23.34 % this patent is cited more than
- 7 Age
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