MPC-based PV maximum power point tracker for transformerless H5 inverter with leakage current reduction

A system, comprising:

• a photovoltaic (PV) array;
• an inverter coupled to the PV array;
• a processor coupled to the PV array and the inverter, the processor having computer readable code to:
• extract photovoltaic (PV) maximum power under a plurality of operating conditions as one or more reference variables;
• predict the future behaviors of a PV output voltage as one or more controlled variables based on a current operational condition;
• generate one or more control signals for the H5 inverter that minimizes an error between the reference variable and the controlled variables;
• and
• control the power inverter with the one or more control signals.

A software application to be executed by a processor, the application having computer readable code to:

• extract photovoltaic (PV) maximum power under a plurality of operating conditions as one or more reference variables;
• predict the future behaviors of a PV output voltage as one or more controlled variables based on a current operational condition;
• generate one or more control signals for the H5 inverter that minimizes an error between the reference variable and the controlled variables;
• and
• control the power inverter with the one or more control signals.