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Dynamically reconfigurable photovoltaic system

Patent ·
OSTI ID:1337622
;
A PV system composed of sub-arrays, each having a group of PV cells that are electrically connected to each other. A power management circuit for each sub-array has a communications interface and serves to connect or disconnect the sub-array to a programmable power grid. The power grid has bus rows and bus columns. A bus management circuit is positioned at a respective junction of a bus column and a bus row and is programmable through its communication interface to connect or disconnect a power path in the grid. As a result, selected sub-arrays are connected by selected power paths to be in parallel so as to produce a low system voltage, and, alternately in series so as to produce a high system voltage that is greater than the low voltage by at least a factor of ten.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
9,531,322
Application Number:
15/133,163
OSTI ID:
1337622
Country of Publication:
United States
Language:
English

References (3)

Enhancing efficiency and robustness of a photovoltaic power system under partial shading
  • Wang, Yanzhi; Lin, Xue; Kim, Younghyun
  • 2012 13th International Symposium on Quality Electronic Design (ISQED), Thirteenth International Symposium on Quality Electronic Design (ISQED) https://doi.org/10.1109/ISQED.2012.6187554
conference March 2012
Generation control circuit for photovoltaic modules journal May 2001
Grid-connected PV systems energy extraction improvement by means of an Electric Array Reconfiguration (EAR) strategy: Operating principle and experimental results conference June 2008

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24 POWER TRANSMISSION AND DISTRIBUTION