船舶直流电推系统选择特性的短路故障模拟  

Short Circuit Fault Simulation for Selection Characteristics of Ship DC Electric Propulsion System

作　　者：杨璇 周瑜 缪光辉 贠廷军 李骁 YANG Xuan;ZHOU Yu;MIU Guang-hui;YUN Ting-jun;LI Xiao(Shanghai Marine Diesel Engine Research Institute,Shanghai 201108,China)

机构地区：[1]上海船用柴油机研究所,上海201108

出　　处：《推进技术》2022年第3期360-367,共8页Journal of Propulsion Technology

基　　金：上海市科学技术委员会专项基金(19DZ1203100)。

摘　　要：为了研究船舶直流电推系统发生短路后的选择性保护特性,对短路发生后的主要短路源、线路状况及关键器件进行分析,采用基于设备参数的选择性保护分析与建模方法,对船舶直流电推系统选择性进行短路故障模拟。针对工程船舶应用,搭建与实际系统对应的仿真模型,对比仿真结果及短路试验结果可以看出,熔断器熔断时间、电压变化趋势及电压跌落情况都基本一致,仿真结果能有效地预测实际的短路结果及现象。本文提供了一种工程上可应用的仿真建模方法,能较准确地预测熔断器的动作情况。In order to study the selective protection characteristics of ship DC thruster system after shortcircuit,the main short-circuit sources,line conditions and key components after the short-circuit are analyzed.The selective protection analysis and modeling method based on equipment parameters is used to simulate the short-circuit fault of ship DC propulsion system. According to the application of a certain engineering ship,a simulation model corresponding to the actual system was built. By comparing the simulation results with the short-circuit test results,it was shown that the fuse fusing time,voltage change trend and voltage drop were basically the same. The simulation results could effectively predict the actual short-circuit results and phenomena. A simulation modeling method that can be applied in engineering has been provided,which can accurately predict the action of fuse.

关 键 词：船舶 直流电力推进系统 快速熔断器 短路故障 选择性保护 

分 类 号：U665.1[交通运输工程—船舶及航道工程]