Enhanced systems and methods for using a power converter for balancing modules in single-string and multi-string configurations
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United States of America Patent
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Jul 26, 2016
Grant Date -
Oct 11, 2012
app pub date -
Nov 4, 2009
filing date -
Mar 25, 2009
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Abstract
Apparatuses and methods include a solar array having one or more string buses of series-connected solar modules. The current outputs from the solar modules on each string bus can be balanced along with the voltage output from the string buses. Local management units coupled between the solar modules and the string buses are configured to control the voltage output from each solar module. When the solar modules on each string are balanced, and when the string buses are balanced (or before the solar modules and string buses are balanced), an inverter or other device connected to the solar array can find the array's maximum power point via a maximum power point tracking algorithm.
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