System for balancing and converting voltage output for photovoltaic modules

A system comprising:

• a power conversion circuit comprising:
• a first set of windings arranged in parallel to a first set of solar substrings;
• an adjustment transformer:
• coupling the first set of solar substrings to an energy storage element;
• and
• configured to supply electrical energy from the first set of solar substrings to the energy storage element;
• an inductive element coupled to the first set of windings and the adjustment transformer;
• a first set of switches coupled to the first set of windings;
• and
• a second set of switches coupled to the adjustment transformer;
• and
• a controller configured to:
• drive a first modulation signal to the first set of switches to induce an alternating voltage polarity across the first set of windings that drives a voltage output from the first set of windings to a first voltage at the inductive element;
• and
• in response to the first voltage deviating from a target voltage:
• drive a second modulation signal to the second set of switches to induce an alternating voltage polarity across the adjustment transformer to drive the first voltage at the inductive element to the target voltage by transferring energy from the energy storage element to the inductive element.

A power conversion circuit comprising:

• a first set of windings arranged in parallel to a first set of solar substrings;
• an adjustment transformer:
• coupling the first set of solar substrings to an energy storage element;
• and
• configured to supply electrical energy from the first set of solar substrings to the energy storage element;
• an inductive element coupled to the first set of windings and the adjustment transformer;
• a first set of switches:
• coupled to the first set of windings;
• and
• configured to alternate voltage polarity across the first set of windings to drive a voltage output from the first set of windings to a first voltage, greater than the voltage output, at the inductive element;
• and
• a second set of switches:
• coupled to the adjustment transformer;
• and
• configured to alternate voltage polarity across the adjustment transformer to drive the first voltage at the inductive element to a target voltage by transferring electrical energy from the energy storage element to the inductive element.