基于DSP的電機調(diào)速驅(qū)動電路的設(shè)計


摘要
介紹了一種基于感應(yīng)電機數(shù)學(xué)模型,提出了一種基于TMS320F240的全數(shù)字化矢量控制SVPWM交流調(diào)速系統(tǒng),在對系統(tǒng)的總體設(shè)計方案作了分析的基礎(chǔ)上,重點介紹了電流采樣、速度檢測、驅(qū)動保護以及控制系統(tǒng)軟件設(shè)計.結(jié)果表明,該系統(tǒng)硬件結(jié)構(gòu)簡單、實時性強.
    基于DSP交流電動機VVVF控制系統(tǒng)設(shè)計方案,采用SVPWM控制策略,具有過調(diào)制功能,當(dāng)母線電壓波動時,能使PWM波形輸出穩(wěn)定,實驗波形顯示該系統(tǒng)具有較好的性能
關(guān)鍵詞：數(shù)字信號處理器;空間矢量PWM;矢量控制系統(tǒng);智能功率模塊; 變頻調(diào)速; 交流異步電機

                        Abstract
Because of the electrical machinery mathematics model of reaction , control SVPWM and exchange the speed of adjusting systematically after putting forward a kind of totally digitilized vector based on TMS320F240, on the basis of the thing that the design plan of totality to the system has done analysis , have recommended especially the electric current samples , the speed measure , drive protection and control system software design. The result indicates , hist system hardware is of simple structure, real-time character is strong.
Exchange the design plan of the motor VVVF control system because of DSP, adopt SVPWM control strategy, have functions of modulating , when the voltage of bus bar fluctuates , can make PWM wave form export steadily , the experiment wave form shows that should have better performance systematically
Key  Word:Digital signal processor;  Space vector PWM;  Control system of the vector; Intellectual power module;  Frequency conversion adjusts the speed;   Exchange the asynchronous motor

目            錄
摘要……………………………………………………………………………………1

目錄……………………………………………………………………………………2

第一章   緒論   …………………………………………………………………4
1.1DSP芯片的概述……………………………………………………………………4
1.2采用DSP設(shè)計的優(yōu)勢 ……………………………………………………………4
1.3本論文所做設(shè)計要求達到的功能 ………………………………………………4

第二章  DSP的特點………………………………………………………………5
2.1DSP系統(tǒng)  …………………………………………………………………………5
2.2可編程DSP芯片 …………………………………………………………………8
2.3溢出問題及其解決方案…………………………………………………………14
2.4倍率的問題和解決方案…………………………………………………………14
2.5 DSP芯片的定點運算……………………………………………………………15
2.5.1數(shù) 的 定 標(biāo) …………………………………………………………………15
2.5.2高級語言：從浮點到定點……………………………………………………17
2.5.3 DSP定點算術(shù)運………………………………………………………………23
2.5.4非線性運算的定點快速實現(xiàn)…………………………………………………27

第三章 異步電動機調(diào)速的概述以及驅(qū)動電路設(shè)計
3.1三相異步電動機的結(jié)構(gòu)和原理…………………………………………………33
3.2三相異步電動機轉(zhuǎn)動的基本工作原理…………………………………………34
3.3三相交流電動機的旋轉(zhuǎn)原理……………………………………………………34
3.4三相異步電動機的調(diào)速…………………………………………………………35
3.5ＤＳＰ控制思想以及PC機與DSP間的通訊 …………………………………38
3.6電機的變頻調(diào)速…………………………………………………………………43
3.7電壓空間矢量技術(shù)SVPWM  ……………………………………………………45

第四章 DSP模塊及其功能………………………………………………………59
4.1仿真模塊…………………………………………………………………………59
4.2SPI模塊接口 ……………………………………………………………………60
4.3 RS232串行通信接口模塊………………………………………………………61
4.4 CAN控制器模塊…………………………………………………………………64
4.5模數(shù)轉(zhuǎn)換模塊……………………………………………………………………64
4.6儲存器空間………………………………………………………………………67
4.7數(shù)字輸入/輸出模塊（I/O）……………………………………………………71

第五章 C語言的開發(fā)…………………………………………………………75
5.1 FOC算法………………………………………………………………………75
5.2 設(shè)計程序總體思路 …………………………………………………………75
5.3 設(shè)計程序 ……………………………………………………………………77

第六章 總結(jié)
6.1 結(jié)果的 ………………………………………………………………………87
6.2設(shè)計總結(jié)體會 ………………………………………………………………87
6.3參考文獻   …………………………………………………………………89
6.4致謝 …………………………………………………………………………90