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Systems for boundary controlled solar power conversion

DC
  • US 7,719,140 B2
  • Filed: 10/19/2009
  • Issued: 05/18/2010
  • Est. Priority Date: 10/15/2007
  • Status: Active Grant
First Claim
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1. A highly efficient method of series string solar energy power conversion comprising the steps of:

  • establishing a plurality of solar energy sources, each providing a DC photovoltaic output;

    creating a plurality of high voltage highly varying DC photovoltaic outputs from said plurality of solar energy sources;

    individually establishing each of said high voltage, highly varying DC photovoltaic outputs as an individual DC photovoltaic input to a plurality of individual high efficiency switchmode photovoltaic DC-DC converters;

    individually high efficiency conversion duty cycle controlling operation of a plurality of switch elements within each of said individual high efficiency switchmode photovoltaic DC-DC converters;

    photovoltaic boundary condition controlling said plurality of switch elements within each of said individual high efficiency switchmode photovoltaic DC-DC converters;

    maximum photovoltaic power point controlling said plurality of switch elements within each of said individual high efficiency switchmode photovoltaic DC-DC converters slaved to said step of photovoltaic boundary condition controlling said plurality of switch elements;

    slavedly individual panel dedicated maximum photovoltaic power point DC-DC converting each of said high voltage, highly varying DC photovoltaic outputs;

    boundary condition DC-DC converting said high voltage, highly varying DC photovoltaic outputs;

    individually substantially power isomorphically converting each said high voltage, highly varying DC photovoltaic outputs into a plurality of converted DC photovoltaic outputs while accomplishing said step of individual dedicated maximum photovoltaic power point converting said DC photovoltaic input from each of said plurality of solar panels;

    serially connecting said plurality of converted DC photovoltaic outputs to create a combined higher voltage converted DC photovoltaic output from said plurality of solar panels;

    establishing said combined higher voltage converted DC photovoltaic output as a converted DC photovoltaic input to a high voltage, high power photovoltaic DC-AC inverter; and

    inverting said converted DC photovoltaic input into a high power inverted AC photovoltaic output.

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