直流全电力推进船舶短路故障管控技术研究

Analyses of Short-circuit Fault Management Technology for DC All-electric Propulsion Ships

本文从船舶直流电网的发展背景出发,分析了船舶直流电网的短路故障特性和保护需求;基于统一框架,对国外直流电网短路故障管控技术,包括故障检测、故障隔离和网络重构等方面的研究进展进行了分析,梳理了目前不同技术手段的特点和优缺点以及对于直流全电力推进船舶的适用性;指出了直流全电力推进船舶短路故障管控技术未来发展和后续研究重点建议。

In this paper,combined with the background information of DC ship power system,the short-circuit characteristics and protection requirements are introduced.And based on the unified framework,the review of short-circuit fault management technologies including fault detection,fault isolation and post-fault reconfiguration have been carried out deeply.Furthermore,the advantages and disadvantages of various technologies and their applicability for DC all-electric propulsion ships are summarized and evaluated.Finally,the future development trends of the management technology is pointed out,and it is also noted that the further research of the short circuit current limiting capacity of the fault tolerant ship power generation system and the miniature and lightweight of DC circuit breaker should be continued.