本文關(guān)鍵詞：數(shù)字繼電保護(hù)測試儀檢測裝置的研制　出處：《南昌航空大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 數(shù)字繼電保護(hù)測試儀 IEC61850 非同步采樣 FFT 納塔爾窗

【摘要】：近年來，由于電子式互感器以及斷路器等智能化裝置的應(yīng)用，加速了智能變電站的發(fā)展進(jìn)程。使得變電站信息的采集、傳輸、處理過程實現(xiàn)了數(shù)字化，繼電保護(hù)裝置也實現(xiàn)了數(shù)字化光纖通信，對新型繼電保護(hù)裝置的檢測也提出了新的要求。基于DL/T860標(biāo)準(zhǔn)的數(shù)字式繼電保護(hù)測試儀的開發(fā)與應(yīng)用有助于提高繼電保護(hù)測試水平、防止繼電保護(hù)及安全自動裝置不正確動作，對保障電網(wǎng)安全穩(wěn)定的運(yùn)行有著重要的現(xiàn)實意義。為了實現(xiàn)對數(shù)字繼電保護(hù)裝置進(jìn)行檢測，數(shù)字繼電保護(hù)測試儀應(yīng)運(yùn)而生，而國內(nèi)尚無對數(shù)字繼電保護(hù)測試儀進(jìn)行檢測的裝置，因此開展對數(shù)字繼電保護(hù)測試儀的檢測裝置的研究具有重要的意義。 本課題設(shè)計并研制出數(shù)字繼電保護(hù)測試儀檢測裝置，該裝置不僅可以完成12路模擬小信號的檢測，也能夠完成符合IEC61850-9-1、IEC61850-9-2LE、IEC61850-9-2協(xié)議采樣值的解析。實現(xiàn)了12路小信號以及符合IEC61850協(xié)議采樣值各通道數(shù)據(jù)的幅度、頻率、相位的測量及波形顯示，完成了對數(shù)字繼電保護(hù)測試儀主要功能的檢測。小信號檢測模塊以DSP處理器TMS320F2812為核心處理器，采用高精度A/D芯片ADS8556，使用非同步采樣方法實現(xiàn)信號的采集，采集到的數(shù)據(jù)傳至上位機(jī)，由上位機(jī)進(jìn)行數(shù)據(jù)的處理和運(yùn)算。IEC61850采樣值解析采用光電交換機(jī)，實現(xiàn)了光電信號的轉(zhuǎn)換，使用可視化開發(fā)工具Delphi調(diào)用WinPcap函數(shù)完成了網(wǎng)卡數(shù)據(jù)的抓包捕獲工作。在數(shù)據(jù)處理上采用了4項5階Nuttall窗插值算法實現(xiàn)了對FFT的運(yùn)算結(jié)果的修正，達(dá)到了更高的精度。 本文首先對課題的研究意義和數(shù)字繼電保護(hù)裝置的現(xiàn)狀進(jìn)行了介紹，詳細(xì)講述了數(shù)字繼電保護(hù)測試儀檢測裝置的實現(xiàn)過程，其次對IEC61850協(xié)議進(jìn)行了詳細(xì)介紹，并詳細(xì)介紹了4項5階Nuttall窗插值算法。結(jié)合硬件原理圖對硬件電路進(jìn)行了分析，，軟件部分則給出了程序流程圖，對抓包和采樣值的解析作了詳細(xì)介紹。最后提出系統(tǒng)的不足之處，提出改進(jìn)意見來進(jìn)一步完善和改進(jìn)系統(tǒng)。
[Abstract]:In recent years, the application of electronic transformer and circuit breaker accelerates the development of intelligent substation, which makes the collection, transmission and processing of substation information digitized. The relay protection device also realizes the digital optical fiber communication. The development and application of digital relay protection tester based on DL/T860 standard is helpful to improve the test level of relay protection. To prevent the incorrect action of relay protection and safety automatic device, it has important practical significance to ensure the safe and stable operation of power network. In order to realize the detection of digital relay protection device. Digital relay protection tester emerges as the times require, but there is no testing device for digital relay protection tester in China. Therefore, it is of great significance to study the testing device of digital relay protection tester. This project designs and develops the digital relay protection tester detection device, which can not only complete 12 analog small signal detection, but also complete the IEC61850-9-1. IEC61850-9-2LE. IEC61850-9-2 protocol sample value analysis. 12 channels of small signal and consistent with the IEC61850 protocol sampling value of each channel data amplitude, frequency, phase measurement and waveform display. The main functions of the digital relay protection tester are tested. The small signal detection module takes DSP processor TMS320F2812 as the core processor. The high precision A / D chip ADS8556 is used to collect the signal, and the collected data is transmitted to the upper computer. The data processing and operation by upper computer. IEC61850 sampling value analysis using photoelectric switch to achieve the conversion of photoelectric signals. The data capture of the network card is accomplished by calling the WinPcap function with the visual development tool Delphi. In the data processing, 4 items and 5 order Nuttall window interpolation algorithms are used to realize the implementation of the data acquisition. The correction of the result of FFT operation. Higher accuracy has been achieved. In this paper, the research significance of the subject and the status quo of digital relay protection device are introduced, and the realization process of the digital relay protection tester is described in detail. Secondly, the IEC61850 protocol is introduced in detail, and four five-order Nuttall window interpolation algorithms are introduced in detail, and the hardware circuit is analyzed in combination with the hardware schematic diagram. In the software part, the program flow chart is given, and the analysis of the grasping packet and the sampling value is introduced in detail. Finally, the deficiency of the system is put forward, and the improvement suggestions are put forward to further perfect and improve the system.
【學(xué)位授予單位】：南昌航空大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM774

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