基于分层多代理的配电网故障自愈复电系统

Self-recovery system based on layered multi-agent

针对传统配电网故障自愈恢复供电速度和效率低下的问题,构建一个基于分层多代理的配电网故障快速恢复供电系统。首先采用分层多代理技术框架作为系统基本架构;然后将分层代理中的馈线层和节点区域层进行连接,构建双层协作的多代理系统,并确定供电恢复过程中的指标,分别为区域代理状态划分、功率平衡度指标、转供容量裕度指标和区域优先级指标,以这4个指标作为约束条件,将失电区域的上下层区域进行连接,分解孤岛状态,实现双层连通信息传输和开关控制。仿真发现,提出的策略可在1.8 s的时间内快速获取配电网中的故障信息,并及时作出反应,相较于其他方法,本策略可在短时间内对各个代理区域进行判别和决策,实现快速恢复供电。

According to the speed and low efficiency of traditional distribution network failure recovery,a hierarchical multi-agent distribution network fault recovery system is built.First,layered multi-agent technical framework is used as the basic system architecture;then the feeder layer and node area layer are connected to build double-layer cooperative multi-agent system,the indexes of regional agent status are determined,power balance index,transfer capacity margin index and regional priority index,connect the upper and lower regions of power lost region,decompose the island state,and double-layer connected information transmission and switch control are realized.Simulation found that the proposed strategy can quickly obtain the fault information in the distribution network in 1.8 s time,and respond in time.Compared with other methods,this strategy can distinguish and decide each agent area in a short time to achieve rapid power supply recovery.