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Régulation par recherche d’extremum pour un système de chauffage de l’eau à pompe à chaleur aérothermique avec injection de vapeur basée sur un cycle avec réservoir de détente.

Extremum seeking control for an air-source heat pump water heating system with flash tank cycle based vapor injection.

Numéro : pap. 2550

Auteurs : WANG W., LI Y.

Résumé

The flash tank cycle (FTC) vapor injection technique has been well received as a promising solution to heat pump systems under cold climate, however, development of effective control strategy has been a barrier for practical acceptance for such system. This paper presents a novel control strategy for heat pump operation with flash tank cycle (FTC) vapor injection configuration. The intermediate pressure setpoint for the vapor injection loop is regulated by the upper electronic expansion valve. Then, a real-time optimization or optimal control framework can be applied to minimize the total power consumption by adjusting the intermediate pressure setpoint, provided that the inner loop controller can satisfy the load demand via compressor capacity. In particular, the extremum seeking controller is applied as a model-free real-time optimization strategy for such purpose. To evaluate the proposed control strategy, a Modelica based dynamic simulation model is developed for an FTC vapor injection heat pump water heater. Simulations under fixed and variable ambient temperature validate the effectiveness of the proposed control strategy.

Documents disponibles

Format PDF

Pages : 8

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 : Extremum seeking control for an air-source heat pump water heating system with flash tank cycle based vapor injection.
  • Identifiant de la fiche : 30024642
  • Langues : Anglais
  • Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 09/07/2018

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