基于LabVIEW的輸電線路故障行波分析軟件開發(fā)
本文關(guān)鍵詞:基于LabVIEW的輸電線路故障行波分析軟件開發(fā) 出處:《山東理工大學(xué)》2016年碩士論文 論文類型:學(xué)位論文
更多相關(guān)文章: 輸電線路 行波 小波變換 故障測距方法 軟件開發(fā) LabVIEW
【摘要】:準(zhǔn)確的輸電線路故障定位對現(xiàn)場巡線、快速修復(fù)線路故障都至關(guān)重要。目前,成套的行波測距裝置和系統(tǒng)已經(jīng)應(yīng)用于實(shí)際輸電線路中,為輸電線路故障定位提供了參考和運(yùn)行經(jīng)驗(yàn)。但其中的分析軟件仍存在一定的問題且編程復(fù)雜,不利于軟件功能的改進(jìn)與擴(kuò)充。因此,本文基于LabVIEW開發(fā)一套適用于實(shí)驗(yàn)室輸電線路仿真的故障行波分析軟件,融入小波變換技術(shù)分析處理故障數(shù)據(jù),提高測距精度,為以后改善已使用的行波分析軟件功能提供可行性參考。本文主要工作如下:(1)研究現(xiàn)代行波測距原理及算法、小波變換技術(shù)和投入運(yùn)行的輸電線路故障行波分析軟件的現(xiàn)狀,為本文軟件的開發(fā)和設(shè)計(jì)提供參考和理論依據(jù)。(2)分析總結(jié)軟件的功能需求,提出軟件開發(fā)設(shè)計(jì)的總體方案。開發(fā)設(shè)計(jì)軟件的功能模塊包括數(shù)據(jù)獲取模塊、行波分析計(jì)算模塊、測距結(jié)果顯示模塊、數(shù)據(jù)存儲與查詢模塊以及各模塊下的子模塊和前面板的開發(fā)設(shè)計(jì)。數(shù)據(jù)獲取模塊中,數(shù)據(jù)來源是利用PSCAD建立仿真系統(tǒng),并獲取輸電線路故障數(shù)據(jù)。(3)利用LabVIEW提供的控件、運(yùn)算函數(shù)、運(yùn)行結(jié)構(gòu)等編程工具以及數(shù)據(jù)庫連接技術(shù)解決在軟件開發(fā)設(shè)計(jì)過程中為實(shí)現(xiàn)各模塊功能所遇到的關(guān)鍵問題,如分析計(jì)算功能中算式的實(shí)現(xiàn),故障后波形的圖形化顯示,測距結(jié)果的顯示,數(shù)據(jù)庫存儲與查詢功能的實(shí)現(xiàn)等。然后對各個(gè)模塊及前面板的顯示進(jìn)行設(shè)計(jì)與布局,最終將其各功能模塊連接,組合成一個(gè)完整的、可運(yùn)行的輸電線路故障行波分析軟件,并闡述整個(gè)軟件運(yùn)行的操作流程。(4)分別對軟件的各個(gè)功能進(jìn)行測試、驗(yàn)證。本文中設(shè)計(jì)一套基于LabVIEW的輸電線路故障行波分析軟件,能夠?qū)崿F(xiàn)接收并分析不同故障類型仿真數(shù)據(jù)、多種行波測距方法的選擇、給出不同測距方法的數(shù)據(jù)結(jié)果、計(jì)算與分析結(jié)果的圖形化顯示、數(shù)據(jù)結(jié)果的存儲與查詢。通過軟件測試驗(yàn)證開發(fā)軟件的測試結(jié)果、顯示界面以及性能。
[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.
【學(xué)位授予單位】:山東理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:TM75;TP311.52
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