This work relates to a method of flow control for a unit of ultrafiltration membrane water powered by photovoltaic energy over the Sun in order to better master the sealing time and avoid damage to the filtration module. The complete system modeled and simulated on Matlab/Simulink includes a photovoltaic generator and a floor of adaptation converter-inverter, a single phase Electromagnetic induction motor coupled to a centrifugal pump, constituting the membrane ultrafiltration unit. The chopper booster switch IGBT is controlled by a MPPT controller - P & O that regularly adjusts the duty cycle taking its values in a range restricted to stabilize the voltage at the output of the chopper, and at the same time the flow of the pump.

Nowadays, it is known that every action made with the aim of contributing to reverse the global warming is appreciated according to its intrinsic value. Through the effect of economies of scale, together, the little actions made elsewhere are significant. If each person or every family in any area uses solar energy in all its domestic activities, the damage due to energy consumption in the world will be very low. This paper presents the command of an autonomous single phase converter with shifted command used to stabilize the energy produce by the photovoltaic cells in regard of the normal condition of usage. This shifted command aids in modifying the characteristics of the output voltage, particularly the effective value of its fundamental without involving the continue voltage of its energy supply. In multiple applications, it can be used in the energy supply of sensible devices like non synchronous machines. When this is jointed to a pump, it can produce drinking water by a tangential ultrafiltration unit of water with a perforated fiber. When it is combined to the command of the static converter of Mc Murray Bedford which is constituted of a monostich and a dephaser, commanded by the mutual inductance in order to obtain of a tension too close.