基于无功电流自适应下垂系数控制的多微网调度与控制协调运行

提出一种控制与功率调度相结合的管控一体化策略，该策略将多微网分为子微网控制层和多微网功率调度层。在子微网控制层中，各子微网按照无功电流自适应下垂系数控制策略运行。当子微网负荷发生变动时，对下垂系数进行修正，提升子微网的无功功率均分效果。此外，针对频率和电压偏差问题，提出频率和电压估计装置对频率和电压进行补偿，保证频率和电压能够维持在额定值上。当子微网负荷超过其发电容量时会触发多微网功率调度策略，调度层根据子微网的运行状态，抽象出负荷节点和发电节点，基于最优潮流实现子微网间的能量互济。最后，搭建了多微网仿真模型，验证了所提出策略的有效性。

Coordinated Operation of Multi-microgrid Scheduling and Control Based on Reactive Current Adaptive Droop Coefficient Control

An integrated management and control strategy combining control and power scheduling is proposed， which divides the multi-microgrid into a sub-microgrid control layer and a multi-microgrid power scheduling layer. In the sub-microgrid control layer，each sub-microgrid operates according to the reactive current-voltage adaptive droop coefficient control strategy. When the load of the sub-microgrid changes，the drooping coefficient is corrected to improve the reactive power equalization effect of the sub-microgrid. In addition，for the frequency and voltage deviation problem，a frequency and voltage estimation device is proposed to compensate the frequency and voltage to ensure that the frequency and voltage can be maintained at the rated value. When the load of the sub-microgrid exceeds its power generation capacity，the multi-microgrid power scheduling strategy will be triggered.