Power control method for minimum power point tracking control and apparatus therefor
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United States of America Patent
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Apr 14, 2020
Grant Date -
Nov 30, 2017
app pub date -
Nov 13, 2015
filing date -
Dec 19, 2014
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Abstract
A power control method for controlling power of a plurality of power conversion modules that are respectively connected in parallel to a plurality of photovoltaic, includes: sensing a string current value flowing between outermost opposite ends of the plurality of photovoltaic modules, and voltage and current values of each of the photovoltaic modules; changing the string current value and respectively calculating conversion power values of the plurality of power conversion modules per the changed string current value by using the voltage and current values; searching a string current value for a minimum power point tracking control among the changed string current values by using the conversion power values; and controlling the plurality of power conversion modules to track the searched string current value.
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