How to flatten battery power limits and battery management system

摘要

A method and a battery management system for flattening a power limit during charging and discharging of a battery are provided. The method according to an embodiment of the present invention comprises determining a first weighting factor based on a maximum charging voltage and a terminal voltage of the battery, and determining a previous flattened charging power limit, a current charging power limit and a current instantaneous power. Determining a second weighting factor, setting a smaller one of the first weighting factor and the second weighting factor as a first reference weighting factor, the previous flattened charging power limit, and Flattening the current charging power limit based on the first reference weighting factor.