Assessing a parameter of cells in the batteries of...

Details Assessing a parameter of cells in the batteries of... Assessing a parameter of cells in the batteries of...

G - Physics

01

R

G01R 31/36 (2006.01)

Patent

CA 2381032

A method and apparatus for measuring the electrical efficacy of one or more battery cells for use in an uninterruptable power supply are disclosed. The efficacy is determined by making use of the ripple current which flows in the battery cells when in use in the uninterruptable power supply. Simultaneous measurement, for example, of the ripple current and a corresponding voltage component enables the internal impedance of a battery cell to be determined, the impedance acting as an indicator of electrical efficacy.

L'invention concerne un procédé et un appareil servant à mesurer l'efficacité électrique d'une ou de plusieurs cellules d'accumulateurs utilisées dans le cadre d'une alimentation électrique sans interruption. L'efficacité est déterminée par l'utilisation du courant ondulatoire qui passe dans les cellules des accumulateurs lors de l'utilisation dans le cadre d'une alimentation électrique sans interruption. Par exemple, le mesurage simultané du courant ondulatoire et d'un composant de tension correspondant permet de déterminer l'impédance interne d'une cellule d'accumulateur, l'impédance étant un indicateur de l'efficacité électrique.

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