交流系统短路电流上升率特性分析及其应用*

摘要

论文从船舶交流电力系统短路电流主要馈送来源着手，建立系统模型并对短路电流上升率进行数学公式推导，然后从船舶电力系统角度对决定短路电流上升率的因素进行分析，并讨论了不同短路角时短路电流的变化趋势对电流上升率的影响。通过对比仿真，给出一定船舶电力系统下具体短路点故障诊断时参考电流上升率的选取方法和条件。参考电流上升率的选取方法为船舶电力系统电流上升率作为故障诊断整定设定提供参考。%This article discusses the main feed of the short‐circuit current sources of ship power system firstyl ,A sys‐tem model of ship power system is created for deriving short‐circuit current rate of rise of mathematical formulas ,and then the determinants of short‐circuit current rising rate are analyzed for the perspective of ship power system and the difference of short‐circuit when the short‐circuit current trends angle of impact on the current rate of rise is discussed .By comparing the simulation ,the selection methods and conditions are iven for short circuit fault diagnosis on certain specific ship power sys‐tem by the reference current rate of rise .The method of reference current rate of rise selection is tuning set as a reference for the current rate of rise of the ship power system fault diagnosis .