DP-3闭环电网与蓄能蓄电池系统集成研究

A Researchon Integrationof DP-3 Closed-loop Power Grid and Energy Storage Battery System

以某在建钻井船为研究对象,介绍由DP-3中压闭环电网与蓄能蓄电池系统集成的混合动力系统的顶层架构设计。为满足挪威船级社和中国船级社相关规范的要求,通过设计合理的DP-3闭环电网选择性保护方案,解决DP-3闭环混合动力系统冗余设计和单点故障发生之后不超过系统最大失效模式的问题。利用蓄电池快充快放特性设计DP-3闭环电网与蓄能蓄电池系统集成方案,提升电网快速响应负载变化的能力,减少机组频繁启停,达到节能减排的目的。该集成方案可供类似船舶的设计和建造参考。

A drilling vessel under construction is taken as the research object to produce the top-level architecture design of a hybrid power system integrated with the DP-3 medium voltage closed-loop power grid and the energy storage battery system.In order to meet the relevant regulations of Det Norske Veritas(DNV)and China Classification Society(CCS),a selective protection scheme is reasonably put forward for DP-3 closed-loop power grid to solve the problem in the redundancy design of the DP-3 closed-loop hybrid power system and the problem that of the maximum failure mode of the system could not be exceeded after a single point failure occurs.A functional integration scheme is designed with the fast charging and discharging batteries for DP-3 closed-loop power grid and energy storage battery system to make the power grid quickly respond to the load changes,reduce the frequency of start and stop,and achieve the goal of energy conservation and emission reduction.The integration scheme is the first to apply to a real ship in China,which could be a reference for the design and construction of similar ships.