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Modèle dynamique d'un système et régulation de la température d'un refroidisseur thermoélectrique.

System dynamic model and temperature control of a thermoelectric cooler.

Auteurs : HUANG B. J., DUANG C. L.

Type d'article : Article, Article de la RIF

Résumé

A linear dynamic model of the thermoelectric cooler including the heat sink and the cooling-load heat exchanger was derived using small-signal linearization method. It shows that the dynamic model of a thermoelectric cooler has two poles and one zero. The linear dynamic model is shown to vary with operating conditions. A linear feedback system is designed for the cold-end temperature control of a thermoelectric cooler using the average linear dynamic model of the thermoelectric cooler and a pseudo derivative feedback controller structure. The step response tests show that the controller has a very satisfactory performance. Some tests under variable cooling load and ambient temperature are also performed to examine the disturbance-rejection property of the controller. Experimental results show that the cold-temperature can be maintained at the fixed value within more or less 0.1 °C irrespective of the variations of the cooling load and the ambient conditions.

Documents disponibles

Format PDF

Pages : 197-207

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : System dynamic model and temperature control of a thermoelectric cooler.
  • Identifiant de la fiche : 2000-2528
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 23 - n. 3
  • Date d'édition : 05/2000

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