Peak power tracking technique for photovoltaic arrays

Abstract

A new method of peak power tracking for photovoltaic arrays is presented. The method utilizes ripple inherent in the system to determine the correct operating point for maximum power from tha array. Peak power tracking is important for efficient operation of photovoltaic power systems. Operation of a microprocessor controlled 50KVA power conditioning unit utilizing the new peak power tracking method is described. The unit features automatic start up and parallel operation with the utility grid.