80C196MC控制的交流變頻調(diào)速系統(tǒng)設(shè)計(jì)

包括,正文,大圖,摘要,目錄,外文翻譯,正文字?jǐn)?shù):21019,頁(yè)數(shù):56  電子機(jī)電論文編號(hào):JD380

目錄

0引言………………………………………………………………………………1
1 概述……………………………………………………………………………2
1.1交流調(diào)速系統(tǒng)的發(fā)展概況……………………………………………………2
1.2交流調(diào)速的基本類型…………………………………………………………3
1.3 本文的主要工作……………………………………………………………4
2變頻器及其控制技術(shù)……………………………………………………………6
2.1通用變頻器的發(fā)展……………………………………………………………6
2.2 變頻器的基本工作原理……………………………………………………6
2.2.1 基頻以下的調(diào)速…………………………………………………………7
2.2.2基頻以上的調(diào)速……………………………………………………………8
2.3恒頻正弦波供電時(shí)異步電動(dòng)機(jī)的機(jī)械特性………………………………10
2.4基頻以下電壓—頻率協(xié)調(diào)控制時(shí)的機(jī)械特性……………………………11
2.4.1恒壓頻比控制……………………………………………………………11
2.4.2恒控制………………………………………………………………12
2.4.3恒控制………………………………………………………………12
2.5 變頻器的種類及結(jié)構(gòu)………………………………………………………14
2.6變頻器的構(gòu)成與功能………………………………………………………15
3 SPWM控制技術(shù)原理……………………………………………………………18
3.1 SPWM的模擬控制方法………………………………………………………19
3.1.1單極性SPWM技術(shù)…………………………………………………………20
3.1.2雙極性SPWM技術(shù)…………………………………………………………21
3.2 SPWM的軟件控制法…………………………………………………………22
3.2.1表格法……………………………………………………………………22
3.2.2隨時(shí)計(jì)算法………………………………………………………………22
3.2.3實(shí)時(shí)計(jì)算法………………………………………………………………22
4硬件電路設(shè)計(jì)…………………………………………………………………25
4.1整流電路的設(shè)計(jì)……………………………………………………………25
4.2逆變器的設(shè)計(jì)………………………………………………………………26
4.2.1驅(qū)動(dòng)電源的設(shè)計(jì)…………………………………………………………27
4.2.2驅(qū)動(dòng)信號(hào)的輸入…………………………………………………………27
4.3控制系統(tǒng)的硬件設(shè)計(jì)………………………………………………………28
4.4 基于80C196MC芯片的SPWM逆變器控制系統(tǒng)模塊………………………33
4.4.1 80C196MC單片機(jī)的波形發(fā)生器…………………………………………33
4.4.2無(wú)信號(hào)時(shí)間發(fā)生器………………………………………………………36
4.4.3 無(wú)信號(hào)時(shí)間發(fā)生器………………………………………………………40
5系統(tǒng)軟件部分的設(shè)計(jì)…………………………………………………………41
5.1主程序的設(shè)計(jì)………………………………………………………………41
5.2子程序的設(shè)計(jì)………………………………………………………………41
5.2.1初始化子程序……………………………………………………………42
5.2.2軟件故障檢測(cè)/保護(hù)子程序………………………………………………42
5.2.3 A/D中斷子程序……………………………………………………………44
5.2.4鍵盤(pán)子程序………………………………………………………………44
5.2.5顯示子程序………………………………………………………………44
5.3關(guān)于控制SPWM波的程序……………………………………………………45
5.4 196MC程序設(shè)計(jì)的公共部分…………………………………………………47
6技術(shù)經(jīng)濟(jì)分析…………………………………………………………………51
7結(jié)論……………………………………………………………………………53
致謝………………………………………………………………………………54
參考文獻(xiàn)…………………………………………………………………………55
附錄A譯文………………………………………………………………………56
附錄B 外文文獻(xiàn)…………………………………………………………………69

摘要

變頻調(diào)速是交流調(diào)速中的發(fā)展方向。但在我國(guó)，自行開(kāi)發(fā)、生產(chǎn)變頻設(shè)備的能力弱，對(duì)國(guó)外公司的依賴還很嚴(yán)重，因此我們很必要對(duì)交流變頻調(diào)速進(jìn)行研究。變頻調(diào)速有多種方法，本文對(duì)正弦波脈寬調(diào)制技術(shù)做了一定的研究，并對(duì)其控制策略做了理論上的分析和推導(dǎo)。控制算法采用恒壓頻比控制。
本系統(tǒng)采用Intel公司的推出的80C196MC單片機(jī)作為控制系統(tǒng)的CPU。8XC196MC特別適合于電動(dòng)機(jī)和反向器等高速控制領(lǐng)域。采用該單片機(jī)的控制系統(tǒng)是本設(shè)計(jì)的硬件核心部分。因此本文先簡(jiǎn)單的介紹此單片機(jī)與該設(shè)計(jì)相關(guān)的特性，繼而介紹本系統(tǒng)的硬件設(shè)計(jì)和軟件設(shè)計(jì)，其中軟件算法是實(shí)現(xiàn)的難點(diǎn)。
關(guān)鍵詞：變頻器；恒壓頻比控制；正弦波脈寬調(diào)制；微機(jī)控制；80C196MC單片機(jī)；

ABSTRACT

VVVF is the direction of AC Speeding development. However, China's domestic development and Frequency inverter perform weakly, which is seriously relied on the foreign companies. therefore ,We think it necessary to make VVVF study ,and have made a certain research on the field of sinusoidal pulse width modulation technology .theoretical analysis and derivation have been made for its control strategy .control algorithms currently uses the constant voltage frequency control which is intensively adopted.
The system adopts Intel 80c196mc as CPU for the control system, which is particularly suitable for high speed control areas, such as motor vehicles and reversing equipments. Use of the micro controller in the design is the core component. Therefore, this paper briefly introduces the micro controller and related design characteristics, then introduces the hardware system and software design. Software algorithm is difficult to achieve.
Key words: Frequency inverter; constant voltage frequency control ; micro controller control ;micro controller 80C196MC