Micro-grid three-switching control method

The embodiment of the invention provides a three-switching control method for a micro-grid. The power generation amount of a photovoltaic power generation device and the load power consumption of each transformer are predicted, and the photovoltaic power generation device is switched to different transformer sides according to the prediction result, so the purpose of maximum local consumption of new energy is achieved, and the benefit maximization is realized; meanwhile, the energy storage device is charged during the valley electricity price period, and the energy storage device is switched to different transformers and is set to discharge according to the predicted load electricity consumption and the actual electricity price of each transformer during the peak electricity price period, so that the power fluctuation caused by the power peak and valley demand is stabilized, the opportunity cost of charging of the energy storage device is minimized, and the benefit maximization is further realized. 本发明实施例提供一种