Microgrid economic dispatching method based on multi-layer optimization strategy

The invention discloses a microgrid economic dispatching method based on a multi-layer optimization strategy, and relates to the technical field of microgrid dispatching. The method comprises the following steps: 1) performing particle swarm optimization on a distributed power supply, an inverter and a load by utilizing three times of control to obtain an optimal output mode of each micro-source;2) adjusting the optimal output mode at step 1) by using primary control in combination with the measured local power to obtain a droop curve; (3) recovering the voltage of each micro-source subjectedto primary control to a rated value, and adjusting the droop curve at step (2); (4) controlling the distributed power supply through a voltage and current double-loop controller after the adjusted droop curve is subjected to voltage synthesis, so as to maintain the voltage and frequency stability of the system and realize the optimal power distribution of the economic operation of a microgrid. 基于多层优化策略的微电网经济调度方法，涉及微电网调度的技