Three-phase power controller with interrupt-controlled...

H - Electricity – 02 – P

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H02P 27/02 (2006.01)

Patent

CA 2268251

This invention concerns a three-phase current regulator with interrupt- performed phase control characterized by a simple, cost-effective design, particularly by the use of a simple microcontroller (1) with only one or two interrupt inputs. This is made possible by forming zero crossover signals (U0A, U0B, U0C) the edges of which can be used for interrupt control. Interrupt routines in the program of the microcontroller (1) control the times for output of firing signals (ZA, ZB, ZC) starting exclusively from the zero crossovers as data about the three-phase network.

L'invention concerne un régulateur de courant triphasé avec commande de phase réalisée par interruption, caractérisé par une structure simple et bon marché, en particulier par l'utilisation d'un microcontrôleur (1) simple comprenant seulement une ou deux entrées d'interruption. Cela est rendu possible par la formation de signaux de passage par zéro (U0A, U0B, U0C) dont les flancs peuvent être utilisés pour la commande d'interruption. Des sous-programmes d'interruption du programme du microcontrôleur (1) commandent les moments auxquels doivent être délivrés des signaux d'allumage (ZA, ZB, ZC) exclusivement à partir des passages par zéro comme informations sur le réseau triphasé.

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