F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 49/02 (2006.01)
Patent
CA 2615784
A refrigerant system is provided with at least one variable frequency drive. In the past, the variable frequency drives were operable such that the voltage- to-frequency ratio remained constant regardless of operation. The present invention realizes that variations in the voltage-to-frequency ratio may be desirable, and the refrigerant system control drives the motors associated with relevant refrigerant system components to reach an optimum voltage-to- frequency ratios in order to achieve higher efficiency, provide operational safety and prevent nuisance shutdowns.
L'invention concerne un système réfrigérant doté d'au moins un entraînement à fréquence variable. Jusqu'alors, les entraînements à fréquence variable fonctionnaient de manière telle que le rapport tension/fréquence restait constant indépendamment du fonctionnement. Des variations du rapport tension/fréquence étant souhaitables, la commande du système réfrigérant de l'invention entraîne les moteurs associés aux éléments correspondants du système réfrigérant pour atteindre des rapports tension/fréquence optimums et améliorer l'efficacité, assurant ainsi une sécurité de fonctionnement et évitant des pannes intempestives.
Lifson Alexander
Taras Michael F.
Carrier Corporation
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
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