Photovoltaic Power Converters and Closed Loop Maximum Power Point Tracking

A power converter for a photovoltaic (PV) system, the power converter comprising:

• an input for coupling to the PV system, the input configured to receive an input voltage and input current from the PV system;
• an output for providing an output voltage to a load;
• a switch coupled between the input and the output;
• and
• a controller configured for controlling operation of the switch to operate the PV system at a maximum power point, the controller controlling operation of the switch as a function of at least the input voltage, the input current and a variable maximum power set point (K), the controller further configured to control the load to control the output voltage of the power converter.