Researches published in photovoltaic water pumping were interested essentially either in water pump modeling and control [1], [2] and [3] or in overall system modeling and simulation [4] so as to carry out a contribution to the study of the behaviors of the photovoltaic generators and converters used to feed an asynchronous machine actuating a centrifugal pump [5].
This paper presents a continuation of previous published works which stated algorithms that forecast the instantaneous PVPG since the sunrise of a considered day on the basis of the climatic parameters behavior during the day before. In view of the estimation results of the PVPG during a considered day, an intelligent fuzzy rules based algorithm makes decision on the connection ways and times of the components of a PVP/battery/water pump plant. Decisions should maximize the pumping period on the one hand and guarantee a sufficient depth of discharge in the battery (dod) less than 0.5 during the day, a total use of PVPG and a power supply stability for the pump motor on the other hand.