高压电缆局部绝缘老化故障智能定位系统设计

Design of intelligent positioning system for partial insulation aging fault of high voltage cable

利用传统定位系统对高压电缆局部绝缘老化故障进行定位,存在定位误差大,定位效率低的问题。针对上述问题,设计一个新型的高压电缆局部绝缘老化故障智能定位系统。由中心处理器、DTE数据通信设备和系统前端信号/数据采集设备构建系统整体框架,根据该框架设计系统软硬件,系统硬件包括传感器、通信设备和中心处理器,系统软件包括故障信号采集处理、故障信号传输、故障定位三大模块。结果表明:与传统绝缘老化故障智定位系统相比,利用本系统对高压电缆局部绝缘老化故障进行智能定位,定位误差平均降低1.28 m,定位准确性提高,定位时间缩短10.2 s,定位效率提高,由此可知本系统整体功能性要好于传统系统。

Using traditional positioning system to locate the aging faults of partial insulation of high voltage cable,there are some problems such as large positioning error and low positioning efficiency.In view of the above problems,a new intelligent positioning system for local insulation ageing fault of high voltage cables is designed.The whole system frame is constructed by central processor,DTE data communication equipment and system front-end signal/data acquisition equipment.According to this frame,the software and hardware of the system are designed.The system hardware includes sensors,communication equipment and central processor.The system software includes three modules:fault signal acquisition and processing,fault signal transmission and fault location.The results show that compared with the traditional intelligent location system for insulation aging faults,the system can locate the local insulation aging faults of high voltage cables intelligently.The average location error is reduced by 1.28 m,the locating time is shortened by 10.2 s,and the locating efficiency is improved.