Photovoltaic DC sub-array control system and method
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United States of America Patent
Stats
-
Sep 29, 2015
Grant Date -
Apr 23, 2015
app pub date -
Oct 21, 2014
filing date -
Oct 22, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A photovoltaic energy conversion system, apparatus, and method for controlling DC sub-arrays of a photovoltaic array are disclosed. The method may include coupling each of N homerun branches from N sub-arrays to an inverter via N switches and monitoring current through each of the N homerun branches. A forward current through each of the N homerun branches is compared with a forward current threshold, and any backfeed current through any of the N homerun branches is compared with a backfeed current threshold. One or more of the N switches are opened in response to either the forward current exceeding the forward current threshold or the backfeed current exceeding a backfeed current threshold.
First Claim
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Family
International Classification(s)
- 2014 Application Filing Year
- G01R Class
- 4836 Applications Filed
- 4099 Patents Issued To-Date
- 84.77 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 23 Citation Count
- G01R Class
- 87.97 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 29, 2027 |
