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介绍了新型超高压输电线路故障定位系统的基本结构 ,阐述了该系统的数据信息处理主要功能和实现技术。新型故障定位系统将行波定位与传统稳态量定位技术相结合 ,综合利用两者在性能上的互补性 ,通过协调配合 ,实现可靠、准确的故障定位。基于 Windows平台的数据信息处理软件采用面向对象技术设计 ,主要完成对故障定位装置的运行监视、行波定位与常规定位的信息协调以及数据信息的提取和交互处理等。在数据处理算法中 ,在线应用了半正交小波算法进行行波波头的检测 ,以提高行波定位的准确性。所开发的数据信息处理软件已经通过了各种动态模拟实验的检验 ,表明该软件已经达到了工程实用要求。
The basic structure of the fault location system of the new EHV transmission line is introduced, and the main functions and implementation technologies of the data information processing system are expounded. The new fault locating system combines traveling wave locating with traditional steady-state locating technology to make full use of their complementarity in performance and achieve reliable and accurate fault location through coordination. The data processing software based on Windows platform adopts the object-oriented technology to design, and mainly completes the operation monitoring of the fault location device, the information coordination of traveling wave location and conventional location, and the extraction and interaction of data information. In the data processing algorithm, the semi-orthogonal wavelet algorithm is applied online to detect the traveling wave head to improve the accuracy of the traveling wave positioning. The development of data processing software has been through a variety of dynamic simulation tests show that the software has reached the engineering requirements.