Process and device for controlling single-phase or...

Details Process and device for controlling single-phase or... Process and device for controlling single-phase or...

H - Electricity

02

P

H02P 27/02 (2006.01) H02H 7/085 (2006.01) H02M 5/257 (2006.01)

Patent

CA 2046268

In the open-loop control of A.C. power controllers through the phasa-angle control of semiconductor valves (4), the chronological sequence of the firing signals (Z) for the semiconductor valves (4) is determined by reference signals (X). When the reference signals (X) fail for one or more periods, this chronological sequence is disturbed and damage to the load (2) to be controlled can result. Therefore, according to the invention, a method is provided whereby a safety firing signal (ZS) is always derived from the preceding firing signals (Z) when the expected reference signal (X) fails. In addition, a device for implementing the method is specified.

Dans la commande de gradateurs de courant alternatif par la commande par coupe de valves semi-conductrices (4), l'ordre chronologique des signaux d'allumage (Z) pour les valves semi-conductrices (4) est déterminé à partir de signaux de référence (X). L'absence de signaux de référence (X) pour une ou plusieurs périodes se traduit par une perturbation de cet ordre chronologique, qui est susceptible d'endommager la charge (2) à commander. Dans le procédé décrit, un signal d'allumage de sécurité (ZS) est toujours dérivé des signaux d'allumage précédents (Z) si le signal de référence attendu (X) fait défaut. Un dispositif permettant la mise en oeuvre du procédé est également décrit.

Affiliated with

Also associated with

Rating

Process and device for controlling single-phase or... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and device for controlling single-phase or..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and device for controlling single-phase or... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1870752