Method for optimizing output power of solar cell

• Main Authors: ZHAO, RU-MIN, CHEN, BO-LONG, KE, SHI-HONG
• Format: Patent
• Language: Chinese; English
• Published: 16.12.2012
• Subjects: CONTROLLING; PHYSICS; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES

Disclosed is a method for optimizing output power of solar cell, including the steps of: changing a bias voltage between two output electrodes of a solar cell; controlling the electrical power outputted by the solar cell at the maximum power point; setting three reference operation voltages that are different from each other during operation and are sequentially applied to the two electrodes; detecting individual output powers of each of the two electrodes; subsequently determining whether the bias voltage corresponding to the output power of the maximum level is in the middle range; if the maximum output power occurs in the middle operation point, gradually converging the three operation points until the output power difference is smaller than a predetermined threshold for identifying the converging point as the maximum power point; if the maximum power occurs at the maximum/minimum operation point, reserving the operation point and the middle operation point, and increasing the difference value towards the