State classification method of small scale power system based on variations of net load

摘要

The present invention relates to a method for classifying the state of a small-scale power system, and more particularly, the power demand and power supply of a load in a small-scale power system in which a power source including renewable energy and an ESS, a diesel generator or a gas turbine is operated in parallel. It relates to a state classification method of a small power system that can prevent a large-scale blackout by classifying a normal state that can balance supply and demand and an emergency state that cannot balance supply and demand.