本文選題：諧波檢測(cè)　切入點(diǎn)：DSP　出處：《南京理工大學(xué)》2015年碩士論文

【摘要】：隨著電力電子設(shè)備以及非線性負(fù)載的廣泛使用,電網(wǎng)諧波污染問(wèn)題日趨惡化,嚴(yán)重影響了電力系統(tǒng)的供電可靠性。為了保證供電系統(tǒng)能夠安全經(jīng)濟(jì)地運(yùn)行,對(duì)諧波進(jìn)行實(shí)時(shí)檢測(cè)和分析具有非常重要的意義。本論文主要對(duì)諧波測(cè)量的相關(guān)理論與技術(shù)進(jìn)行分析和研究,設(shè)計(jì)并實(shí)現(xiàn)了基于DSP和ARM的諧波檢測(cè)系統(tǒng)。本文首先研究基于準(zhǔn)同步采樣的諧波檢測(cè)方法,該方法具有實(shí)時(shí)性高,且無(wú)需額外硬件同步電路的優(yōu)點(diǎn),節(jié)約了硬件成本,提高了測(cè)量準(zhǔn)確性。其次提出了基于濾波器組的頻率實(shí)時(shí)檢測(cè)方案以及基于插值算法的準(zhǔn)同步采樣方法,并對(duì)該方法進(jìn)行了仿真,以驗(yàn)證其準(zhǔn)確性和有效性。然后完成了諧波檢測(cè)系統(tǒng)的軟、硬件設(shè)計(jì)：主要工作內(nèi)容包括數(shù)據(jù)采集模塊、DSP模塊和ARM模塊及其周邊電路的硬件設(shè)計(jì),以及基于DSP和ARM芯片的軟件設(shè)計(jì)。最后完成了系統(tǒng)調(diào)試和功能驗(yàn)證。經(jīng)過(guò)在實(shí)驗(yàn)室內(nèi)的反復(fù)測(cè)試,本系統(tǒng)能夠長(zhǎng)時(shí)間穩(wěn)定運(yùn)行,且具有較高的測(cè)量精度和實(shí)時(shí)性,能夠提供很好的分析數(shù)據(jù),滿足電力系統(tǒng)中諧波檢測(cè)的要求。
[Abstract]:With the wide use of power electronic equipment and nonlinear load, the problem of harmonic pollution in power network is worsening day by day, which seriously affects the power supply reliability of power system.In order to ensure the safe and economical operation of power supply system, it is very important to detect and analyze harmonics in real time.In this paper, the theory and technology of harmonic measurement are analyzed and studied, and the harmonic detection system based on DSP and ARM is designed and implemented.This paper first studies the harmonic detection method based on quasi-synchronous sampling. The method has the advantages of high real-time performance and no extra hardware synchronization circuit. It saves the cost of hardware and improves the accuracy of measurement.Secondly, the frequency real-time detection scheme based on filter banks and the quasi-synchronous sampling method based on interpolation algorithm are proposed, and the simulation results are given to verify its accuracy and effectiveness.Then the software and hardware design of harmonic detection system is completed. The main work includes the hardware design of data acquisition module ARM module and its peripheral circuit as well as the software design based on DSP and ARM chip.Finally, the system debugging and function verification are completed.After repeated tests in the laboratory, the system can run stably for a long time, and has high measurement accuracy and real-time performance. It can provide good analysis data and meet the requirements of harmonic detection in power system.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM935

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 粟時(shí)平,鄭小平,金維宇;電力系統(tǒng)諧波檢測(cè)方法及其實(shí)現(xiàn)技術(shù)的發(fā)展[J];電氣開(kāi)關(guān);2004年01期

2 程浩忠;;電能質(zhì)量 講座 第四講 諧波的產(chǎn)生和危害[J];低壓電器;2007年08期

3 陳倩;張全法;李宏成;費(fèi)光彥;;采用加窗插值算法的諧波分析儀的DSP實(shí)現(xiàn)[J];電測(cè)與儀表;2013年06期

4 馮冠超;;FIR數(shù)字濾波器設(shè)計(jì)及MATLAB實(shí)現(xiàn)[J];信息系統(tǒng)工程;2010年06期

相關(guān)碩士學(xué)位論文 前2條

1 陳曉光;基于小波變換與傅立葉分析的諧波檢測(cè)方法研究[D];哈爾濱工業(yè)大學(xué);2009年

2 張俊士;低壓配電網(wǎng)的諧波分析與治理[D];華北電力大學(xué)（河北）;2010年

，

本文編號(hào)：1709667