Abstract: More and more dynamic positioning ships choose to use closed-loop power grid systems in the design of the power distribution networks in order to save energy and reduce emissions, operate economically, and improve the reliability and flexibility of power distribution networks. DNV, ABS, CCS and other classification societies have also put forward corresponding inspection requirements for the design of closed-loop power grids in specifications and guidelines, among which advanced generator protection is one of the key points of the reliability assessment of the closed-loop power grids by these classification societies. Based on the specification requirements for the advanced generator protection, the design points of the advanced generator protection are analyzed from typical power grid faults combined with the current practical applications. It is hoped to provide references for the subsequent design of the closed-loop power grid.

Key words: dynamic positioning, closed-loop power grid, advanced generator protection

摘要： 为实现节能减排、经济运营并提高配电网络的可靠性、灵活性,越来越多的动力定位船舶在配电网络的设计中选择使用闭环电力网络系统。挪威船级社、美国船级社、中国船级社等也陆续在规范与指南中针对闭环电网的设计提出相应的检验要求,其中高级发电机保护是各船级社对闭环电网可靠性考核的重点之一。该文基于高级发电机保护的规范要求,从典型电网故障入手,结合目前实际应用情况,分析高级发电机保护的设计要点,可为后续闭环电网设计提供参考。

关键词: 动力定位, 闭环电网, 高级发电机保护