CHARGE AND DISCHARGE CONTROL METHOD, CHARGE AND DISCHARGE CONTROL SYSTEM, AND CHARGE AND DISCHARGE CONTROL APPARATUS

摘要

A charge or discharge control method includes: receiving a power instruction value with respect to a power storage apparatus; obtaining a remaining state of charge (SOC) and a target SOC which is a target value of the SOC of the power storage apparatus; controlling charge or discharge of the power storage apparatus according to the power instruction value when the power instruction value is received; wherein, in the controlling, a delay time is determined according to a difference between the target SOC and the remaining SOC, and the power storage apparatus is controlled according to the power instruction value at a timing when the delay time passes after the power instruction value is received.

主权项

1. A method of controlling a power storage apparatus connected to a grid for power system stabilization control, the method comprising:
receiving, a power instruction value indicating a power value which the power storage apparatus is to charge or discharge for setting a frequency of the grid within a predetermined range; obtaining a remaining state of charge (SOC) of the power storage apparatus; controlling charge or discharge of the power storage apparatus according to the power instruction value, when the power instruction value is received; and setting a delay time from when the power instruction value is received to when the power storage apparatus charges or discharges according to the power instruction value, (i) in case the remaining SOC is smaller than a target SOC, in a period in which the power instruction value increases as time passes, and (ii) in case the remaining SOC is larger than the target SOC in a period in which the power instruction value decreases as time passes.