Optimal system management of a water pumping and desalination process supplied with intermittent renewable sources

Xavier Roboam (1) , Bruno Sareni (1) , Duc Trung Nguyen (2) , Jamel Belhadj (3)

1 LAPLACE-GENESYS - Groupe ENergie Electrique et SYStémique
2 LAPLACE - LAboratoire PLasma et Conversion d'Energie
3 Laboratoire des Systèmes Electriques - LSE (Tunis, Tunisie)

This paper aims at defining energy management strategy for a water pumping and desalination process which would be powered by a hybrid (solar PV & wind) renewable generation system. Several pumping subsystems for well pumping, water storage and desalination are coupled. The particularity of the proposed architecture with its management deals with the absence of electrochemical storage, only taking benefit of hydraulic storage in water tanks: in such an autonomous device, given a certain level of intermittent power following wind and sun irradiation conditions, and given hydraulic characteristics of water pumping subsystems, this study puts forward the prime importance of a water and power flow management optimization. For this purpose, both dynamic and quasi static models are proposed before stetting the management strategy based on optimal power dispatching. Subsequent results are analyzed in terms of robustness and performance.

Mots clés: Energy management; Autonomous system; Renewable energy; Intermittent power; Desalination; Bond Graph; Optimization

Domaines: Ecologie, Environnement; Energie électrique

Xavier Roboam, Bruno Sareni, Duc Trung Nguyen, Jamel Belhadj. Optimal system management of a water pumping and desalination process supplied with intermittent renewable sources. 8th Power Plant and Power System Control Conference, Sep 2012, Toulouse, France. pp. 369-374. ⟨hal-00920707⟩