BATTERY CHARGE AND DISCHARGE CONTROL SYSTEM AND BATTERY CHARGE AND DISCHARGE CONTROL METHOD

摘要

A control system includes a state-of-charge (SOC) measurer and a controller. The SOC measurer measures states of charge of first and second battery packs. The controller adjust the SOCs of the first and second battery packs. When a difference between the SOCs of the first and second battery packs is equal to or less than a first threshold value, the controller adjusts the SOCs of the first and second battery packs so that the difference between the SOC of the first battery pack and the SOC of the second battery pack is equal to the first threshold value. An average of the SOCs of the first and second battery packs before the adjustment is equal to an average of the SOCs of the first and second battery packs after the adjustment. The controller pulse-charges or pulse-discharges the first and second battery packs with a first C-rate.

主权项

1. A battery charge and discharge control system, comprising:
first and second battery packs connected in parallel; a state-of-charge (SOC) measurer to measure charge states of the first and second battery packs; and a controller to adjust SOCs of the first and second battery packs, wherein, when a difference between the SOC of the first battery pack and the SOC of the second battery pack is equal to or less than a first threshold value, the controller is to adjust the SOCs of the first and second battery packs so that the difference between the SOC of the first battery pack and the SOC of the second battery pack is equal to the first threshold value, and an average of the SOCs of the first and second battery packs before the adjustment is equal to an average of the SOCs of the first and second battery packs after the adjustment, wherein the controller is to pulse-charge or pulse-discharge the first and second battery packs with a first C-rate.