TITLE

Operation of desalination plants using renewable energies and hybrid control

AUTHOR(S)
Palacin, Luis G.; Tadeo, Fernando; De Prada, Cesar; Salazar, Johanna
PUB. DATE
January 2011
SOURCE
Desalination & Water Treatment;Jan2011, Vol. 25 Issue 1-3, p119
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This paper presents a control system for the operation of desalination plants powered by locally generated renewable energy. To cope with the variability of the water demands and the available energy, the amount of water produced must be manipulated optimally. This is carried out by regulating a variable speed pump, using hybrid predictive control, which takes into account the operational limits of both the pump and the process. The operation is complex because the scheduling of the cleaning operations and the optimization of the energy consumption must be performed simultaneously to the control of the plant, fulfilling a set of additional constraints. The paper uses a continuous reformulation of the problem in order to simplify the optimization process. Simulations of a specific plant show that an optimal operation reduces the extra energy consumption, and makes it possible to supply the variable water demand.
ACCESSION #
59978228

 

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