基于LabVIEW的输电线路故障行波分析软件开发

发布时间：2018-01-10 00:02

本文关键词：基于LabVIEW的输电线路故障行波分析软件开发　出处：《山东理工大学》2016年硕士论文　论文类型：学位论文

【摘要】：准确的输电线路故障定位对现场巡线、快速修复线路故障都至关重要。目前,成套的行波测距装置和系统已经应用于实际输电线路中,为输电线路故障定位提供了参考和运行经验。但其中的分析软件仍存在一定的问题且编程复杂,不利于软件功能的改进与扩充。因此,本文基于LabVIEW开发一套适用于实验室输电线路仿真的故障行波分析软件,融入小波变换技术分析处理故障数据,提高测距精度,为以后改善已使用的行波分析软件功能提供可行性参考。本文主要工作如下:(1)研究现代行波测距原理及算法、小波变换技术和投入运行的输电线路故障行波分析软件的现状,为本文软件的开发和设计提供参考和理论依据。(2)分析总结软件的功能需求,提出软件开发设计的总体方案。开发设计软件的功能模块包括数据获取模块、行波分析计算模块、测距结果显示模块、数据存储与查询模块以及各模块下的子模块和前面板的开发设计。数据获取模块中,数据来源是利用PSCAD建立仿真系统,并获取输电线路故障数据。(3)利用LabVIEW提供的控件、运算函数、运行结构等编程工具以及数据库连接技术解决在软件开发设计过程中为实现各模块功能所遇到的关键问题,如分析计算功能中算式的实现,故障后波形的图形化显示,测距结果的显示,数据库存储与查询功能的实现等。然后对各个模块及前面板的显示进行设计与布局,最终将其各功能模块连接,组合成一个完整的、可运行的输电线路故障行波分析软件,并阐述整个软件运行的操作流程。(4)分别对软件的各个功能进行测试、验证。本文中设计一套基于LabVIEW的输电线路故障行波分析软件,能够实现接收并分析不同故障类型仿真数据、多种行波测距方法的选择、给出不同测距方法的数据结果、计算与分析结果的图形化显示、数据结果的存储与查询。通过软件测试验证开发软件的测试结果、显示界面以及性能。
[Abstract]:Accurate fault location of transmission line is very important for local inspection and fast repair of line fault. At present, the complete set of traveling wave location devices and systems have been applied in actual transmission lines. It provides reference and operation experience for fault location of transmission lines. However, the analysis software still has some problems and complex programming, which is not conducive to the improvement and expansion of software functions. This paper develops a set of fault traveling wave analysis software based on LabVIEW, which is suitable for laboratory transmission line simulation, and integrates wavelet transform technology to analyze and process fault data to improve location accuracy. This paper provides a feasible reference for improving the function of the used traveling wave analysis software. The main work of this paper is as follows: 1) Research on the principle and algorithm of modern traveling wave ranging. Wavelet transform technology and the current situation of transmission line fault traveling wave analysis software provide reference and theoretical basis for the development and design of this software. The function module of the software development and design includes data acquisition module, traveling wave analysis and calculation module, ranging result display module. Data storage and query module as well as the development and design of each module sub-module and front panel. In the data acquisition module, the data source is to use PSCAD to establish simulation system. And get the transmission line fault data. 3) using the control provided by LabVIEW, the operation function. Programming tools such as running structure and database connection technology solve the key problems encountered in the process of software development and design to realize the function of each module, such as the realization of calculation formula in the function of analysis and calculation. The display of the waveform after the fault, the display of the location result, the realization of the database storage and query function, etc. Then the display and layout of each module and the front panel are designed and layout, and finally the functional modules are connected. Combined into a complete, operational transmission line fault traveling wave analysis software, and describes the entire software operation flow. 4) respectively to test the software's various functions. In this paper, a transmission line fault traveling wave analysis software based on LabVIEW is designed, which can receive and analyze the simulation data of different fault types and the choice of various traveling wave location methods. The data results of different ranging methods are given, the graphical display of the calculation and analysis results, the storage and query of the data results are given, and the test results, display interfaces and performance of the developed software are verified by software tests.
【学位授予单位】：山东理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM75;TP311.52

【参考文献】