Circuit and method for monitoring the point of maximum power...

G - Physics – 05 – F

Patent

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G05F 1/67 (2006.01)

Patent

CA 2647777

The invention is designed for continuous, rapid and effective monitoring of a solar or equivalent source in order successfully to arrange for it to operate at its point of maximum power (PMP) without interrupting the supply of electricity to users, with a conventional power-regulating structure of series or parallel type, governed by an independent module capable of calculating the voltage and current coordinates of said PMP (VPMP, IPMP) by applying an iterative algorithm and/or graphic methods. This module ideally requires only one measurement point, relating to the electrical characteristic, with the ambient conditions of said source, and as a result it delivers a reference signal, a continuous, stable voltage constantly representative of the evolution of the PMP, for the power regulator. In the event of the use of a power-regulating structure of S3R or ASR type, information about the PMP is immediate and requires no intermediate measurement point.

L'invention permet un contrôle continu, rapide et efficace d'une source solaire ou de son équivalent, afin qu'elle fonctionne à son point de puissance maximale (MPP) sans que la distribution d'électricité auprès des utilisateurs soit interrompue, ledit procédé utilisant une structure régulatrice de puissance, en série ou en parallèle, commandée par un module indépendant capable de calculer les coordonnées de tension et de courant dudit MPP (VMPP, IMPP) lorsque l'on applique un algorithme itératif et/ou des procédés graphiques. Ce module nécessite idéalement uniquement un point de mesure, relatif à la caractéristique électrique, ainsi que les conditions ambiantes de ladite source, et produit en conséquence un signal de référence, une tension continue, stable et constamment représentative de l'évolution du MPP, pour le régulateur de puissance. Si l'on utilise une structure régulatrice de puissance de type S3R ou ASR, les informations relatives au MPP sont immédiates et ne nécessitent aucun point de mesure intermédiaire.

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