深水半潜式支持平台DP ER闭环配电系统防失电保护策略

Strategy to Protect Closed Bus-Tie Power System of Semisubmersible Support Platform for DP of ER Class

以某深水半潜式支持平台为例,对其采用的DP ER加强型动力定位闭环配电系统的防失电保护策略进行研究。通过分析动力定位闭环配电系统在DP ER模式下发生故障的原因,提出相应的故障隔离和电站保护策略,避免该类型闭环配电系统运行过程中因发生单点故障而导致全船失电。在此基础上,根据挪威船级社相关规范的要求开展失效模式与影响分析(Failure Mode and Effects Analysis,FMEA),提升该闭环配电系统设计的可靠性。

System protection strategy,the core technology of close bus-tie power distribution network of the deep-water semi-submersible support platform with DP of ER class,is studied.The factors which may cause power supply failure are identified and analyzed.Multiple system protection and failure isolation strategies are devised for the power station management system,so that the power distribution can be maintained to the maximum,should any problemarise at a node.The design meets the requirements for the power system of DP of ER class.The process of FMEA(Failure Mode and Effects Analysis)is presented.