The invention provides a coordinated control method and device for flexible interaction of an
optical storage and charging micro-grid and a power distribution network, and belongs to the technical field of intelligent power grids and distributed
energy management. According to the method, through a day-ahead, intra-day and real-time three-layer coordination control architecture, the
system operation cost is optimized, and the
power grid stability is improved. The day-ahead layer generates a 24-hour scheduling plan based on photovoltaic output prediction,
electric vehicle charging requirements and time-of-use
electricity price; the intra-day layer performs rolling optimization in combination with real-time photovoltaic / load fluctuation, and dynamically allocates V2G and
energy storage adjustment tasks; the real-time layer adopts adaptive droop control, monitors
power grid abnormity and triggers cross-layer cooperation, and also sets photovoltaic fluctuation compensation and island
mode switching conditions. Collaborative optimization is realized among the
layers through bidirectional data channels. According to the method, the defect of
interactive control of the
optical storage and charging micro-grid and the power distribution network in the prior art is overcome, the adaptability of the
system to distributed energy fluctuation is enhanced, the V2G resource potential is fully played, and the
coping capacity under the abnormal condition of the
power grid is improved.