Stand-alone micro-grid autonomous control system and method

The present invention relates to a stand-alone micro-grid autonomous control system comprising: one or more battery systems for directly changing a reference frequency according to a charging amount, and supplying power having the changed reference frequency; one or more power generators for measuring the reference frequency in the power supplied from the battery systems, and then, performing a power generation or power generation stopping operation on the basis of the measured reference frequency; and one or more loads for measuring the reference frequency in the power supplied from the battery systems, and then, performing a synchronization or synchronization cancelling operation on the basis of the measured reference frequency.