Dynamically reconfigurable photovoltaic system
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):
- 9,356,173
- Application Number:
- 14/014,266
- OSTI ID:
- 1255127
- Country of Publication:
- United States
- Language:
- English
Near-optimal, dynamic module reconfiguration in a photovoltaic system to combat partial shading effects
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conference | January 2012 |
Generation control circuit for photovoltaic modules
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journal | May 2001 |
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