Maximum power point tracking of directly driven PV-RO systems

In this paper, a new simple algorithm is proposed for tracking the maximum power point (MPP) in photovoltaic-driven reverse osmosis systems by manipulating the position of the valve on the brine side of the reverse osmosis system. The mathematical model is presented and simulated to illustrate the new approach. A simple algorithm for adjusting the valve position for MPP tracking is provided, and the performance of system is demonstrated under varying solar radiation. The technique is particularly suitable for remote desert areas as in Saudi Arabia and African Sahara region, where clear sky is available almost throughout the year.