Non-linear predictive control of a vapour compression cycle |
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Authors: | Denis Leducq Jacques Guilpart Gilles Trystram |
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Affiliation: | aRefrigeration Processes Engineering Research Unit, Cemagref, Parc de Tourvoie B.P. 44, 92185 Antony, Cedex, France;bENSIA, 1 avenue des Olympiades, 91744 Massy, France |
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Abstract: | A potential energy saving can be obtained by a global optimal setting of each actuator in a vapour compression cycle. This paper describes a predictive optimal control algorithm applying this strategy. At each step, an optimal command profile is computed, upon predictions of variables system evolution, using a simple non-linear model of a vapour compression cycle. Choice of this profile is based on a multiple criterion including cycle efficiency and technological constraints. The approach is experimentally validated on a pilot scale refrigeration plant with variable speed compressor. Trials have been performed and showed a meaningful energy saving. |
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Keywords: | Refrigerating system Compression system Optimization Efficiency Regulation Energy consumptionMots clé s: Syste` me frigorifique Syste` me a` compression Optimisation Efficacite´ Re´ gulation Consommation d'e´ nergie |
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