SOLAR TRACKING SYSTEM AND METHOD FOR CONCENTRATED PHOTOVOLTAIC (CPV) SYSTEMS

摘要

A system and method for tracking a position of the Sun with a solar receiver includes at least one solar receiver including at least one solar cell. The at least one solar receiver has a pointing axis associated therewith and generates a feedback signal. A solar tracker controller generates the directional control signals responsive to sensing signals. A solar tracking algorithm controls operation of the solar tracker controller responsive to the sensing signals. The solar tracking algorithm includes a rough tracking mode of operation for causing the pointing axis of the at least one solar receiver to point generally in a direction of the Sun as indicated by the sensing signals. A searching mode of operation positions the at least one solar receiver such that sunlight falls on at least one of the at least one solar cells. A fine tracking mode of operation positions the pointing axis of the at least one solar receiver responsive to the feedback signal from the at least one solar receiver.