| 摘要 |
PROBLEM TO BE SOLVED: To suggest a policy for ensuring stable energy transmission between a system and a battery, by operating a power system more efficiently.SOLUTION: A control method of an energy storage device includes a step of determining whether or not the operation frequency of a system belongs to a dead band range corresponding to a preset frequency range, a step of determining whether or not the SOC level indicating the charging amount of the energy storage device belongs to a preset maintenance range, when the operation frequency of a system belongs to the dead band range, and a step of adjusting the SOC level so as to belong to the maintenance range, when the operation frequency of a system belongs to the dead band range, and the SOC level deviates from the preset maintenance range. The maintenance range indicates the range between preset lower limit value and upper limit value, and step of adjusting the SOC level performs different adjustment when the SOC level is smaller than the lower limit value and when larger than the upper limit value.SELECTED DRAWING: Figure 3 |
