Mine-used cable fault location method considering transmission characteristics of pulse signal
-
摘要: 为解决电缆分接头对脉冲信号的反射干扰造成故障定位困难的问题，分析了脉冲信号沿电缆传输特性：脉冲信号幅值、脉宽随传输距离的增加呈单调线性变化。在此基础上提出了一种考虑脉冲信号传输特性的矿用电缆故障定位方法：通过向电缆中注入原始脉冲信号获得反射脉冲信号，根据反射脉冲信号的脉宽、幅值变化识别电缆故障点反射脉冲信号，从而排除电缆分接头反射脉冲信号的干扰，实现故障准确定位。搭建了矿用电缆故障定位仿真模型对该方法进行验证，仿真结果表明，该方法具有较高的故障定位精度，定位误差小于1%。Abstract: In view of difficulty in fault location due to reflection interference of cable tap on pulse signal, transmission characteristics of pulse signal along cable were analyzed, that is, amplitude and pulse width of pulse signal changed linearly with the increase of transmission distance. On this basis, a fault location method of mine-used cable considering transmission characteristics of pulse signal was proposed. Reflected pulse signal is obtained by injecting original pulse signal into cable, and reflected pulse signal from cable fault point is identified according to variation of pulse width and amplitude of the reflected pulse signal, so as to eliminate interference of the reflected pulse signal from cable tap and realize accurate fault location. A mine-used cable fault location simulation model was built. The simulation result show that the method has high fault location accuracy and location error is less than 1%.
-
-
期刊类型引用(7)
1. 魏宗新，杨立民. 炼化用离心分离机的工程应用. 化工设计通讯. 2023(03): 75-78 . 
百度学术
2. 袁惠新，王伟鹏，付双成，戴如昊，周发戚. 卧式螺旋卸料沉降离心机螺旋空心轴内表面磨损的研究. 流体机械. 2023(12): 9-15 . 百度学术
3. 刘丽艳，刘小康，樊东东，李昱奇，谭蔚，朱国瑞. 卧螺离心机进料分布器的流场模拟与结构优化. 天津大学学报(自然科学与工程技术版). 2021(01): 35-41 . 百度学术
4. 谈志超，刘雪东，郭文元，张炜. 卧式螺旋离心机操作参数对粉煤气化灰水分离特性的影响. 机械设计与制造. 2021(04): 11-14 . 百度学术
5. 付双成，张亚磊，姜毓圣，袁惠新. 卧螺离心机不同螺旋结构流场的数值模拟研究. 常州大学学报(自然科学版). 2020(01): 56-61 . 百度学术
6. 陈美岭，许亚茹，许忠义，李振铭，刘振兴. 聚氯乙烯干燥系统离心机出现的问题及解决方案. 盐科学与化工. 2020(01): 52-54 . 百度学术
7. 张建中，李峰，胡化增，张广浩，刘海洋. 矿用LW800卧螺离心机转鼓锥角结构优化. 流体机械. 2019(07): 11-14+38 . 百度学术
其他类型引用(5)
计量
- 文章访问数: 86
- HTML全文浏览量: 9
- PDF下载量: 13
- 被引次数: 12
下载:
