Methods and apparatus for load sharing between parallel...

Details Methods and apparatus for load sharing between parallel... Methods and apparatus for load sharing between parallel...

G - Physics

06

F

G06F 1/03 (2006.01) H02M 7/48 (2006.01)

Patent

CA 2371221

Methods and apparatus are disclosed for achieving load balance between parallel inverters in an AC power supply. Load balancing reduces undesirable cross conduction current between the parallel inverters. Load balancing and the resulting reduction in cross conduction current are achieved without the need for common control circuitry between the parallel inverters. Thus, the single-fault protection offered by redundant parallel inverters is not compromised by the disclosed load balancing techniques.

L'invention concerne des procédés et appareil permettant d'équilibrer la charge entre des inverseurs parallèles dans une alimentation en CA. L'équilibrage de charge réduit le courant de conduction croisé indésirable entre les inverseurs parallèles. L'équilibrage de charge et la réduction du courant de conduction croisé qui en résulte sont obtenus sans besoin de circuits de commande communs entre lesdits inverseurs. Ainsi, la protection en cas d'anomalie unique offerte par des inverseurs parallèles redondants n'est pas compromise par les techniques d'équilibrage de charge selon l'invention.

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