Battery charge and discharge control apparatus and method for controlling battery charge and discharge

摘要

A master controller of a battery charge and discharge control apparatus is a device performing charge and discharge control on a group of a predetermined number of battery arrays, the battery arrays being connected together in parallel. The master controller acquires an entire charge or discharge instruction intended for the entire battery array group, starts charging or discharging each of the battery arrays at a uniform charge or discharge power value, acquires a charge or discharge status of each of the battery arrays after the beginning of the charge or discharge and compares the charge or discharge status with a predetermined charge or discharge set value for the entire battery array group, and changes the charge or discharge power value of each of the battery arrays based on a result of the comparison.

主权项

1. A charge and discharge control apparatus performing charge and discharge control on a group of a predetermined number of battery arrays into which a battery assembly that is an assembly of a plurality of batteries is divided, the battery arrays being connected together in parallel, the apparatus comprising:
an instruction acquisition section acquiring an entire charge or discharge instruction intended for the entire battery array group; a start processing section starting charging or discharging each of the battery arrays at a uniform charge or discharge power value obtained by dividing an entire charge or discharge power value contained in the acquired entire charge or discharge instruction by a number of the battery arrays; a comparison section acquiring a charge or discharge status of each of the battery arrays after the beginning of the charge or discharge and comparing the charge or discharge status with a predetermined charge or discharge set value for the entire battery array group; and a change process section changing the charge or discharge power value of each of the battery arrays based on a result of the comparison, wherein the change process section includes a mode selection section including a plurality of predetermined change process modes in which at least one of the charge or discharge process time and a degree of charge is different, and selecting one of the plurality of change process modes based on a predetermined selection criterion.