| 基于分布式光纤振动传感原理的电力电缆故障定位技术研究 |
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| 引用本文： | 周正仙,田杰,段绍辉,徐帮联,王晓华. 基于分布式光纤振动传感原理的电力电缆故障定位技术研究[J]. 光学仪器, 2013, 35(5): 3-3 |
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| 作者姓名： | 周正仙 田杰 段绍辉 徐帮联 王晓华 |
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| 作者单位： | 上海华魏光纤传感技术有限公司,上海201103;上海理工大学 光电信息与计算机工程学院,上海200093;深圳供电局有限公司,广东 深圳518000;深圳供电局有限公司,广东 深圳518000;上海理工大学 光电信息与计算机工程学院,上海200093;上海理工大学 光电信息与计算机工程学院,上海200093;上海电力学院 电子与信息工程学院,上海200090 |
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| 基金项目： | 深圳供电局有限公司科技基金资助项目（2012科成0008） |
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| 摘 要： | 研究一种基于分布式光纤振动传感原理和电缆局部放电原理的电力电缆故障定位技术.通过在电缆上施加高压脉冲,使得电缆上有故障的位置产生局部放电,从而产生振动信号.并将放电脉冲信号同步传输给分布式光纤振动监测系统.通过分布式光纤振动传感技术来探测电缆沿线放电产生的振动信号,并对振动信号进行定位.将该故障定位技术应用于电力电缆沿线上监测电缆故障的状态分布,并进行试验验证.实验结果表明,该系统可实现监测多回路30 km电缆线路的故障分布状况,并对故障点进行准确定位.
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| 关 键 词： | 分布式光纤传感 后向散射 电力电缆 故障定位 |
Research on power cable fault monitoring system based on the optical fiber distributed vibration sensing technology |
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| ZHOU Zhengxian,TIAN Jie,DUAN Shaohui,XU Banglian and WANG Xiaohua. Research on power cable fault monitoring system based on the optical fiber distributed vibration sensing technology[J]. Optical Instruments, 2013, 35(5): 3-3 |
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| Authors: | ZHOU Zhengxian TIAN Jie DUAN Shaohui XU Banglian WANG Xiaohua |
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| Affiliation: | 1. Shanghai Boom Fiber Sensing Technology Co. , Ltd. , Shanghai 201103, China; 2. School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; 3. Shenzhen Power Supply Co. , Ltd. , Shenzhen 518000, China 4. College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China) |
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| Abstract: | The research on power cable fault location technology based on distributed optical fiber vibration sensing theory and cable partial discharge principle is carried out. By applying a high voltage pulse on the cable, the fault point in the cable is made to produce a partial discharge, thereby the vibration signal is generated. The discharge pulse signal is then synchronizingly transmitted to the distributed fiber vibration monotoring system. The vibration signal caused by discharge along the cable is detected by using the distributed optical fiber sensor technology, and thus the location of the vibration signal could be fixed. The fault location technology is used along power cables to monitor the cable fault state distribution, which is then verified by experiment. The results show that the system could achieve 30km multi loop cable line fault distribution monitoring and could locate the fault point accurately. |
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| Keywords: | distributed optical fiber sensing backscattering power cable fault positioning |
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