舰船电力网络漏电流传感器设计

Leakage Current Sensor Design of Shipboard Power System Network

舰船电力网络在发生绝缘故障时出现的故障电流往往包含丰富的高频信号。在舰船电力网络绝缘监测系统研究中,故障电流特别是暂态电流的有效提取和分析是重点也是难点,它的精度是保证绝缘监测系统运行准确性的关键。本文重点对电流传感器进行相关理论分析,根据传感器的等效电路模型,通过一定的仿真研究与实验分析,验证其对于故障漏电流拾取的可靠性,为舰船电网信号检测提供有效的手段。

Prolific high-frequency signals are included in fault circuit frequently while in- sulation faults are appeared in shipboard power system network. In the research of ship insu- lation monitoring system, it is the focal and also difficult point to extract and analyze the fault current, particular transient fault current, whose accuracy is the key to ensure the accuracy of ship insulation monitoring system. In this paper, the relevant theory of current sensor is ana- lyzed intensively. According to the equivalent circuit model, the reliability of obtaining leak- age current is verified through some simulation and experimental analysis, which provides an effective means for signal detection of shipboard power system network.