Method for diagnosing a defect in a set of stationary batteries

摘要

The present invention relates to a method for detecting a defect in a power storage system including at least one battery. The method comprises providing instructions for charging or discharging the battery. The method also comprises measuring a current flowing through the battery during application of the command. The method also calculates m × n mean error (eTj (tij)) j between the measured current and the theoretical command current in m × n time intervals ([tij, tij + Tj]) j, respectively. Comprising steps. The method also comprises calculating ej = max (e (tij)) for each j between 1 and m. However, i = 1,. . . , N. Finally, the method comprises the step of incrementing the counter Cj when ej exceeds a predetermined threshold completely or partially. A defect is detected when Cj exceeds a predetermined threshold. [Selection] Figure 3a