Feed forward control of expansion valve

Details Feed forward control of expansion valve Feed forward control of expansion valve

F - Mech Eng,Light,Heat,Weapons

25

B

F25B 49/02 (2006.01) F25B 41/06 (2006.01) G05D 7/06 (2006.01) G05D 23/19 (2006.01) F25B 1/047 (2006.01)

Patent

CA 2212804

A method of controlling an expansion valve (30) in a refrigeration system (10). The method comprises the steps of controlling the modulation of the expansion valve (30) based upon a first feedback control criteria; and controlling the modulation of the expansion valve (30) based upon a second feed forward control criteria.

L'invention porte sur une technique de commande d'une soupape de détente (30) dans un système de réfrigération (10). Cette technique consiste à commander la modulation de la soupape de détente (30) d'après un ensemble de premiers critères de réglage par réaction ainsi qu'à commander la modulation de la soupape de détente (30) d'après un ensemble de seconds critères de commande à action directe.

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