論文標(biāo)準(zhǔn)WORD格式排版 59頁

摘要

本文首先回顧了國內(nèi)電力系統(tǒng)諧波監(jiān)測裝置的現(xiàn)狀，分析了數(shù)字信號(hào)處理芯片（DSP）在電力系統(tǒng)中的應(yīng)用前景。然后，介紹了諧波的基本概念、衡量指標(biāo)和數(shù)學(xué)分析方法。最后針對電力部門和實(shí)際應(yīng)用的需要，提出了以AD73360和數(shù)字信號(hào)處理芯片TMS320C5402構(gòu)成的硬件系統(tǒng)設(shè)計(jì)構(gòu)想。
論文完成了基本的硬件電路設(shè)計(jì)和軟件算法設(shè)計(jì)。
硬件設(shè)計(jì)方面，根據(jù)電力系統(tǒng)中數(shù)據(jù)采集和處理的實(shí)際特點(diǎn)，設(shè)計(jì)信號(hào)的多通道同時(shí)采樣，A/D和DSP芯片的處理速度快的優(yōu)勢，滿足了實(shí)時(shí)性的要求。
軟件算法方面，系統(tǒng)采用傳統(tǒng)的快速傅立葉變換（FFT），對采集的電壓和電流信號(hào)進(jìn)行頻譜分析。論文中還詳細(xì)分析了信號(hào)的采樣問題。初步設(shè)計(jì)了對采集數(shù)據(jù)進(jìn)行計(jì)算和處理的相關(guān)軟件算法，實(shí)現(xiàn)了對諧波的測量功能。
本裝置可以進(jìn)行快速的信號(hào)采集和實(shí)時(shí)的諧波分析。

關(guān)鍵詞：數(shù)字信號(hào)處理器（DSP），諧波，McBSP

Abstract

By loking back on the present situations of the electric harmonic monitoring equipments, the prospect of the pracitical appliication of Digital Signal Processor (DSP) in the electric power system is discussed in this paper. This paper briefly analyzes the concepts of harmonic and then proposes the hardware structure made up of AD73360 (A/D) and TMS320C5420 (DSP) at the demand of practical applications of power department.
The design of both hardware and software is finished.
A real-time high-speed multi-channel, synchronous data sampling and processing system is designed based on DSP. AD73360 is directly connected to Multi-channel Buffered Serial Port (McBSP which is a kind of six-wired synchronous serial port) on DSP for data exchange.
The sampled voltage and current signals are harmonic analyzed by DSP using the fast Fourier transform (FFT) algorithm. Some considerations conceming about the signal samnling are also discussed..
The equipment can provide high-speed signal sampling and real-time harmonic analysis.


keywords: DSP (Digital Signal Processor), Harmonic, McBSP (Multi-channel Buffered Serial Port)

目 錄
摘 要………………………………………………………………………………………Ⅰ
ABSTRACT……………………………………………………………………………………愀

1 緒論……………………………………………………………………………………………1
1.1問題的提出…………………………………………………………………………………1
1.2國內(nèi)電能質(zhì)量監(jiān)測的現(xiàn)狀…………………………………………………………………
1.3DSP技術(shù)的發(fā)展………………………………………………………………………………
1.4課題的研究任務(wù)……………………………………………………………………………
2 電能質(zhì)量參數(shù)的測量和計(jì)算公式…………………………………………………………
2.1基本模型……………………………………………………………………………………
2.1.1有功功率的計(jì)算………………………………………………………………………
2.1.2無功功率的計(jì)算………………………………………………………………………
2.1.3視在功率的計(jì)算………………………………………………………………………
2.1.4功率因數(shù)的計(jì)算………………………………………………………………………
2.2諧波測量原理………………………………………………………………………………
2.2.1諧波的概念……………………………………………………………………………
2.2.2諧波的計(jì)算……………………………………………………………………………
2.2.3諧波的分析……………………………………………………………………………
2.3信號(hào)的采樣和頻譜分析
2.3.1周期信號(hào)的采樣………………………………………………………………………
2.3.2采樣數(shù)據(jù)的計(jì)算方法…………………………………………………………………
2.4利用快速FFT算法進(jìn)行頻譜分析…………………………………………………………
2.4.1蝶形運(yùn)算………………………………………………………………………………
2.4.2碼位倒序………………………………………………………………………………
3 硬件設(shè)計(jì)………………………………………………………………………………………
3.1硬件設(shè)計(jì)總體方案…………………………………………………………………………
3.2 DSP部分……………………………………………………………………………………
3.2.1 DSP系統(tǒng)的構(gòu)成………………………………………………………………………
3.2.2 DSP芯片的選擇依據(jù)…………………………………………………………………
3.2.3 TMS320C54xx具有以下硬件優(yōu)點(diǎn)……………………………………………………
3.2.4 TMS320C54xx DSP芯片的硬件結(jié)構(gòu)…………………………………………………
3.2.5存儲(chǔ)器映射寄存器…………………………………………………………………
3.2.6靈活多樣的尋址方式………………………………………………………………
3.2.7 二次開發(fā)擴(kuò)展子板接口……………………………………………………………
3.2.8 DSP的多通道緩沖串口(McBSP) …………………………………………………
3.3 A/D部分…………………………………………………………………………………
3.3.1.A/D的選擇AD73360…………………………………………………………………
3.3.2 模擬輸入通道的電路設(shè)計(jì)…………………………………………………………
3.3.3 時(shí)鐘信號(hào)的選擇……………………………………………………………………
3.3.4 電源和接地…………………………………………………………………………
3.3.5 與DSP的接口電路設(shè)計(jì)……………………..