SOLAR POWER CONVERTER AND METHOD OF CONTROLLING SOLAR POWER CONVERSION

摘要

A controller (306) executes a method (400) of controlling a solar power converter (20, 300) connected to receive output power from a solar power source (10). The method comprises: measuring (430) an open circuit voltage (VOC) of the solar power source; determining a short circuit current (ISC) output by the solar power source; using (440) the measured open circuit voltage (VOC) and the measured short circuit current (ISC) to determine an estimate of a voltage maximum power point (VMPP) for the solar power source corresponding to a maximum power point (MPP) for transferring the output power from the solar power source to a load; executing (450) a perturb-and-observe algorithm (500) beginning at the estimated VMPP to determine an actual VMPP for transferring the output power from the solar power source to the load; and operating (470) the solar power converter at or approximately at the actual VMPP.