Frequency Stabilization System And Frequency Stabilization Method

Abstract: A frequency stabilization system according to one aspect of the present invention comprises: a power conversion unit that converts, into AC power, DC power output by a solar panel and/or a storage battery, and outputs the AC power to a power grid; a bidirectional DC converter that is connected in series to the storage battery, and controls, on the basis of an effective power command value, the charging and discharging of the power conversion unit by the storage battery; a grid frequency detection unit that detects the grid frequency of AC power output to the power grid by the power conversion unit; a required power calculation unit that calculates the required power for the power grid on the basis of the detected grid frequency; a command value calculation unit that calculates the effective power command value for the bidirectional DC converter on the basis of the calculated required power; and an output control unit that, on the basis of the calculated effective power command value, controls charging and discharging outputs to the power conversion unit of the storage battery by the bidirectional DC converter.

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