Method of designing redox flow battery system

Details Method of designing redox flow battery system Method of designing redox flow battery system

H - Electricity

01

M

H01M 8/18 (2006.01) H01M 8/04 (2006.01) H01M 8/20 (2006.01)

Patent

CA 2478575

A method for designing a redox flow battery system. Decrease in the system efficiency during charging/discharging due to a weak generated power or the load power is prevented without using a lead acid storage and thereby the system efficiency is enhanced. A power generator the power generation output of which varies irregularly is provided with a redox flow battery to smoothen the power generation output. The means value and the standard deviation of the battery output distribution to the smoothened power generation output are determined. At least one of the rated output of the battery and that of a converter that converts the battery output is determined on the basis of the standard deviation.

L'invention concerne un procédé de conception d'un système de batterie redox à circulation constante. La baisse d'efficacité du système pendant la charge/décharge, imputable à la faiblesse de la puissance générée ou de la puissance de charge, est empêchée sans nécessité d'utiliser un accumulateur au plomb, ce qui améliore le rendement du système. Un bloc-électrogène, dont la production d'énergie varie de façon irrégulière, est associé à une batterie redox à circulation constante pour stabiliser la production d'énergie. La valeur moyenne et l'écart-type de la répartition de la puissance de sortie de la batterie relativement à la production d'énergie stabilisée sont déterminés. Au moins la puissance nominale de la batterie ou celle d'un convertisseur qui convertit la puissance de sortie de la batterie est déterminée sur la base dudit écart-type.

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