船舶供电系统失电快速恢复方法

A fast recovery method for ship power supply system power loss

为能够在船舶供电系统发生失电故障时,迅速、准确地定位故障点,并有效恢复供电,本研究基于网络拓扑有向遍历技术,设计了一种船舶供电系统失电快速恢复方法。在船舶供电系统失电故障指示器发出失电预警后,构建供电系统网络拓扑有向图,有向图的每个顶点和边代表的线路节点。利用深度优先搜索遍历算法,逐一搜索故障指示器预警范围,定位失电故障位置;针对失电故障位置,启动船舶供电系统失电快速恢复模型,构建负载恢复供电速度最大化、开关动作次数最小化的失电恢复目标函数,利用差分进化算法求解满足目标函数条件的备用发电机组启停、负载开关切换方案,实现失电快速恢复。实验数据证明:此方法可在1.05 s范围内快速实现失电恢复。

In order to quickly and accurately locate the fault point and effectively restore power supply in the event of power failure in the ship power supply system,this study designs a fast recovery method for ship power supply system power loss based on network topology directed traversal technology.After the power outage fault indicator in the ship's power supply system issues a power outage warning,a directed graph of the power supply system network topology is constructed,where each vertex and edge of the graph represents the line nodes.Using depth first search traversal algorithm,search for the warning range of fault indicators one by one,and locate the location of power loss faults;Based on the location of power loss faults,a fast recovery model for ship power supply system is initiated to construct a power loss recovery objective function that maximizes the speed of load recovery and minimizes the number of switch actions.The differential evolution algorithm is used to solve the standby generator set start stop and load switch switching schemes that meet the objective function conditions,achieving fast recovery from power loss.Experimental data shows that this method can quickly achieve power loss recovery within the range of 1.05 seconds.