一种集行波与录波功能的综合故障分析系统

A Comprehensive Fault Analysis System Integrating Traveling Wave and Wave Recording Functions

现有故障录波装置故障定位不准,而行波测距装置容易误启动。在分析了两种装置优缺点基础上,提出了一种集行波测距和故障录波功能于一体的装置。装置包括了模拟量采集模块、开关量采集模块、控制模块、管理模块、对时模块和显示模块。采用结合阻抗法和行波法的综合测距算法,将阻抗法判断出的故障时间送给行波法测距使用。行波法以阻抗法提供的故障时间为参考,对高频行波录波数据进行行波首波头和反射波波头的查找和识别。最后根据阻抗测距结果和行波测距结果进行统筹分析,给出最终测距结果。通过试验验证了综合测距算法的精度和可靠性,具有较高的推广价值。

The existing fault recording device has the problem of inaccurate fault location,while the traveling wave ranging device is easy to start up by mistake.For this reason,based on the analysis of the advantages and disadvantages of the two devices,a device integrating the functions of traveling wave ranging and fault recording was proposed.The device includes analog quantity acquisition module,switch quantity acquisition module,control module,management module,timing module and display module.Using the comprehensive ranging algorithm in combination with the impedance method and the traveling wave method,the fault time judged by the impedance method is sent to the traveling wave method for ranging.The traveling wave method uses the fault time provided by the impedance method as a reference to find and identify the traveling wave head and reflected wave head on the high frequency traveling wave recording data.Finally,an overall analysis is carried out according to the impedance ranging result and the traveling wave ranging result,and the final ranging result is given.The accuracy and reliability of the comprehensive ranging algorithm are verified through experiments,which is worth popularizing.