Control method for a 110 kilovolt transformer substation micro-grid

The invention discloses a control method for a 110 kilovolt transformer substation micro-grid. According to the control method, a first station transformer and a second station transformer are involved, under the normal circumstance, the first station transformer supplies power to a first bus and the load of the first bus, and the second station transformer supplies the power to a second bus; when power loss of the first station transformer occurs and the second station transformer is normal, an automatic selector switch connects the load in a station to the second bus; when the first station transformer is normal, and power loss of the second station transformer occurs, a photovoltaic power generation system and a battery energy storage system quit a micro-grid system; when power loss of first station transformer and the second station transformer occurs, the photovoltaic power generation system and the battery energy storage system supply the power to the second bus, and the automatic selector switch connec