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Régulation non-synchrone pour les systèmes frigorifiques de supermarchés.

Sistemas de refrigeración en supermercados: control anti-sincronización.

Auteurs : LARSEN L. F. S., THYBO C., WISNIEWSKI R., et al.

Type d'article : Article de périodique

Résumé

This article is the Spanish translation of an article presented at the 22nd IIR international Congress in Beijing, China (see the Bulletin of the IIR, reference 2007-2666). A supermarket refrigeration system is a hybrid system with switched nonlinear dynamics and discrete-valued input variables such as opening/closing of valves and start/stop of compressors. Practical and simulation studies have shown that the use of distributed hysteresis controllers to operate the valves leads to synchronization, meaning that the opening and closing actions of the valves coincide. Consequently, the compressor periodically has to work hard resulting in low efficiency, inferior control performance and a high wear on the compressor. In this paper the authors propose two control schemes of low complexity for desynchronizing the valve operations while improving performance. Simulation results indicate the potential increase in efficiency and reduction in wear comparing with traditional control schemes.

Documents disponibles

Format PDF

Pages : 22-30

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Sistemas de refrigeración en supermercados: control anti-sincronización.
  • Identifiant de la fiche : 2009-0656
  • Langues : Espagnol
  • Source : IIF-IIR/Frío Calor Aire acond. - vol. 37 - n. 410
  • Date d'édition : 01/2009

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