船舶电力系统的故障诊断及处理研究

Research on Diagnosis and Processing of Ship Power System Faults

介绍了一种船舶电力系统监控架构,针对该监控架构提出故障诊断及处理策略,将电力系统的故障分为直流幅压电网故障、交流电网故障和直流24 V电网故障,给出不同故障诊断的依据及判断部位。针对不同故障,提出不同的处理措施,当供电支路发生过载或短路故障时,通过分级保护实现供电支路的隔离;当电源发生故障停机时,通过电力系统拓扑结构改变,实现故障重构,恢复未故障区域供电。该故障诊断及处理策略能够满足电力系统自主运行的需求,适用于无人舰船。

A monitoring architecture for ship power system is introduced,in which the fault diagnosis and processing strategy is proposed.The power system faults can be divided into DC amplitude power grid faults,AC power grid faults,and DC 24V power grid ones.Then,the fault judgment bases and equipment fault location are presented.And then,the disposition measures specific to different failures are proposed:when an overload or short circuit occurs in a power supply branch,grade protection is used to realize the isolation of power supply branch roads;when the power is out of order,the fault reconstruction can be realized through the topology change so as to restore the power supply to the unfaulted area.It is observed that this fault diagnosis and processing strategy can meets the independent operation needs of unmanned ship power system.