Method and device for controlling the run-down of an...

Details Method and device for controlling the run-down of an... Method and device for controlling the run-down of an...

H - Electricity

02

P

H02P 3/18 (2006.01) H02P 27/02 (2006.01)

Patent

CA 2354407

The invention relates to deceleration in an induction machine (2) comprising a stator which is connected to a single-phase or multi-phase a.c. system (L1, L2, L3) via an a.c. power controller (4) which can be controlled by phase control. The aim of the invention is to control said deceleration. Initially, the phase angle (~) is increased in a gradual manner until said angle reaches an operating point which has been determined by means of given criteria. Said phase angle (~) is then controlled for deceleration of the induction machine (2) according to a given control programme.

Pour commander le ralentissement d'un moteur asynchrone (2), dont le stator est raccordé à un réseau de courant alternatif monophasé ou polyphasé (L1, L2, L3) par l'intermédiaire d'un organe de commande de courant alternatif (4) pouvant être commandé par coupe, l'angle de fonctionnement (~) est tout d'abord augmenté progressivement jusqu'à ce qu'il atteigne un point de fonctionnement fixé au moyen de critères prédéterminés. Ensuite, l'angle de fonctionnement (~) est commandé selon un programme de commande prédéterminé pour le ralentissement du moteur asynchrone (2).

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