DSP電機調(diào)速

電子機電論文編號:JD082    字數(shù):32875,頁數(shù):76

目錄
摘要 .............................................................I
Abstract..........................................................II
第1章緒論........................................................1
1.1 變頻調(diào)速的發(fā)展 ...............................................1
1.2 交流調(diào)速的意義和發(fā)展方向 .....................................3
1.3 本論文的研究內(nèi)容..............................................5
第2章 交流電機控制方案的確定......................................6
2.1 SPWM變頻調(diào)速原理..............................................6
2.2 轉(zhuǎn)速閉環(huán)控制系統(tǒng)..............................................8
第3章變頻調(diào)速系統(tǒng)的硬件電路設(shè)計 ................................13
3.1 變頻調(diào)速系統(tǒng)的總體設(shè)計 ......................................13
3.2 主電路的設(shè)計 ................................................14
3.2.1 主回路電路參數(shù)的計算及設(shè)計.................................14
3.2.2 IGBT驅(qū)動電路的設(shè)計 ........................................17
3.3 保護電路的設(shè)計.............................................. 21
3.3.1 泵升保護電路的設(shè)計 ........................................22
3.3.2 過壓及欠壓保護電路的設(shè)計...................................23
3.3.3 過流保護電路的設(shè)計 ........................................24
3.3.4 限流啟動電路的設(shè)計.........................................25
3.4 控制電路的設(shè)計...............................................26
3.4.1 DSP（TMS320LF2407A）的最小系統(tǒng)電路.........................26
3.4.2 鍵盤電路...................................................30
3.4.3 光耦隔離電路...............................................32
3.4.4 顯示電路 ..................................................32
3.4.5 轉(zhuǎn)速測量采樣電路 ..........................................34
第4章控制電路設(shè)計和實現(xiàn)..........................................36
4.1 TMS320LF2407芯片 ............................................36
4.2 主程序 ......................................................37
4.3 轉(zhuǎn)速閉環(huán)程序.................................................39
4.4 SPWM波形程序 ................................................40
社會經(jīng)濟效益分析 ................................................45
結(jié)論............................................................ 46
致謝 ............................................................47
參考文獻 ........................................................48
附錄1 中文譯文 ..................................................49
附錄2 英文原文 ..................................................55
附錄3 ...........................................................64
附錄4 ...........................................................72

摘要
近年來，隨著新一代電力電子器件和微處器的推出，以及精確的電機模型和各種先進的控制策略的提出，極大的促進了電機控制的發(fā)展，使得精度高、調(diào)速范圍寬、控制性能好的電機控制系統(tǒng)的實現(xiàn)成為可能。
本文以三相交流異步電動機為被控對象，采用IGBT作為主功率器件,以TMS320LF2407A (16位定點DSP芯片)為處理器，設(shè)計了變頻調(diào)速系統(tǒng)的主電路，包括整流部分和逆變部分設(shè)計了針對過壓過流等危險情況的保護電路，完成了調(diào)制程序的編寫。并且設(shè)計了鍵盤和顯示電路，完成了數(shù)據(jù)向主控制芯片的傳送，實現(xiàn)了數(shù)據(jù)的交流。
采用了一種基于DSP芯片TMS320LF2407A的SPWM波形產(chǎn)生方法，用這種方法獲得的SPWM信號的穩(wěn)定性和精確性優(yōu)于用模擬電路和專用集成電路產(chǎn)生的SPWM信號。介紹了SPWM原理及其在DSPTMS320LF2407A芯片為核心的控制系統(tǒng)中的應(yīng)用。

關(guān)鍵詞  變頻控制器  DSP  SPWM波

Abstract
In the recent years, with the appearance of the new power electron apparatus and microprocessor，the accurate asynchronous motor model and all kinds of advanced theories that have resulted in the development of motor control. The motor controller which haves high accuracy and control performance, wide speed regulating range can be possibly realized.
In this paper three phase AC asynchronous motor is the controlled object and is used as the main IGBT power devices regard TMS320LF2407A (16 fixed-Points DSP chip) as the Processor，the design of the inverter main circuit, including the rectifier and inverter part of the design against over voltage and dangerous flow of the protection circuit, completed the preparation of the modulation procedures. And the design of the keyboard and display circuit, completed the data to the main control chip transmission of data exchange.
Introduced a micro controller-based TMS320LF2407A SPWM waveform generator, This method was used SPWM signal stability and accuracy better than analog circuits and the ASIC SPWM signal. SPWM introduced in TMS320LF2407A principle at the core of the control system applications.

Key words  inverter controller  DSP  SPWM