Patent ID: 11870292
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 0:
1. An apparatus for controlling a power of a parallel multi pack system, comprising:
first to nth sensor units configured to measure operation characteristic values of first to nth battery packs that are included in the parallel multi pack system and connected to each other in parallel;
a power management unit configured to control a power consumed in a load or a power provided by a charging device to correspond to a total power of the parallel multi pack system; and
a multi pack management unit operatively coupled to the first to nth sensor units and the power management unit, the multi pack management unit being configured to:
determine a pack resistance of each of the first to nth battery packs, based on the operation characteristic value of each battery pack received from the first to nth sensor units;
determine a minimum available power, among available powers respectively corresponding to the pack resistances of the battery packs, by using pre-defined correlation information between pack resistance and available power;
determine the total power of the parallel multi pack system so that the pack power of a battery pack having a lowest pack resistance becomes identical to the minimum available power; and
transmit the determined total power of the parallel multi pack system to the power management unit,

wherein the power management unit is further configured to control the power consumed in the load or the power provided by the charging device to not exceed the total power of the parallel multi pack system.