【正文】 7A 數(shù)字信號處理器，作為逆變電源中的核心控制部分進行研究。 本文主要 分析了變頻電源技術現(xiàn)狀、發(fā)展趨勢和存在的難點，指出論文的研究內(nèi)容和意義。 通過分析 SPWM波形產(chǎn)生規(guī)律和特點，選擇了以不對稱規(guī)則采樣法為基礎實現(xiàn)的單極性 SPWM控制，并且具體介紹了 DSP實現(xiàn) SPWM。這兩部分的結(jié)合使得該電源結(jié)構簡單、性能優(yōu)良。 關鍵詞： 逆變電源， SPWM， TMS320LF2407A,IPM安徽理工大學畢業(yè)設計 II THE DESIGN OF DIGITAL INVERTER BASED ON TMS320LF2407A ABSTRACT Inverter is a power electronic technology is used for energy conversion device, which obtained from AC or DC input voltage constant frequency AC output. Inverter technology is a prehensive contention industry technology, it stretches electricity, electronics, microprocessors and other multidisciplinary field of automatic control, is the power electronics industry and scientific research hot spots. Power inverter is widely used in aviation, marine, electric power, railway transport, post and telemunications, and many other fields. Power technology enables digital power control system to replace the traditional power has bee a necessity. The development of power inverter and power electronic devices linked to the development of the device led to the development of power inverter development. Currently inverter is the core part of the inverter and its control part, although the control method has bee mature, but its control method to achieve it is still somewhat difficult. Therefore, the inverter and the inverter to control depth study has great practical significance. With the rapid development of modern science and technology. As inverter technology has been moving alldigital, intelligent, work oriented direction. As a dedicated DSP appearance, but also for research and design of new power inverter provides a more convenient, more flexible, more powerful technology platform. In this paper, Texas Instruments(TI)recently introduced a TMS320LF2407A digital signal processor as the core power inverter control part of research. Developed in order to achieve the standard inverter 安徽理工大學畢業(yè)設計 III device can output a sinusoidal alternating current. This paper analyzes the variable frequency power supply technology status, trends and the presence of difficulties, that the thesis content and meaning. Discussed in detail SPWM modulation inverter principle, introduced a digital realization symmetric and asymmetric sampling rules the rules of sampling characteristics. SPWM waveform generated by analyzing the rules and characteristics, chose to asymmetric regular sampling method is based on the realization of the unipolar SPWM control, and specifically describes the DSP implementation SPWM. The paper designed the entire inverter hardware structure, the main core of the IPM and DSP control section. The bination of these two parts so that the power of simple structure, excellent performance. And the DSP control system for the various parts of the software design, gives the corresponding software flow chart. KEYWARDS:inverter,spwm,tms320lf2407a,ipm 安徽理工大學畢業(yè)設計 i 目錄 摘要 (中文 )......................................................... II 摘要 (外文 )....................................................... IIII .............................................................. 1 引言 ......................................................... 1 逆變器的現(xiàn)狀及發(fā)展趨勢 ....................................... 1 逆變器的現(xiàn)狀 ........................................... 1 逆變器的發(fā)展趨勢 ....................................... 2 主要內(nèi)容和章節(jié)安排 ........................................... 4 ........................................ 5 現(xiàn)代逆變系統(tǒng)基本結(jié)構 ......................................... 5 SPWM 控制技術及其原理 ........................................ 6 逆變系統(tǒng)的原理 ......................................... 6 SPWM 控制基礎 .......................................... 8 PWM 波形的基本原理 ..................................... 9 SPWM 采樣方法對比分析 ........................................ 9 SPWM 控制方式分析 ........................................... 13 單極性 SPWM 控制方式 ................................... 14 雙極性 SPWM 控制方式 ................................... 15 單極性和雙極性調(diào)制比較 ................................ 16 使用 DSP 實現(xiàn) SPWM 波 ......................................... 16 DSP 的事件（ EV）管理器模塊介紹 ........................ 16 DSP 中斷及中斷向量 .................................... 20 DSP 控制三相 SPWM 波形產(chǎn)生原理分析 ..................... 21 DSP 系統(tǒng)的硬件設計與研究 ..................................... 23 三相逆變電源主電路結(jié)構的比較分析 ............................ 23 基于 DSP 系統(tǒng)的逆變電源硬件結(jié)構設計 .......................... 24 硬件結(jié)構圖 ............................................ 24 整流、濾波電路的設計 .................................. 24 輸出濾波電路的設計 .................................... 26 智能功率模塊 IPM 的設計 ...................................... 27 智能功率模塊 IPM 的介紹 ................................ 27 IPM 模塊的選擇 ........................................ 28 安徽理工大學畢業(yè)設計 ii DSP 與 IPM 的連接電路 .................................. 29 DSP 控制電路的設計 .......................................... 30 DSP 芯片的特點與選取 .................................. 30 以 TMS320LF2407A 為核心的控制電路設計 .................. 31 電源電路的設計 ........................................ 35 硬件系統(tǒng)的優(yōu)化設計 .......................................... 36 ............................................... 37 DSP 系統(tǒng)軟件設計 ............................................ 37 系統(tǒng)主程序設計 ........................................ 37 初始化模塊 ............................................ 38 利用查表法生產(chǎn) SPWM 波 ................................. 39 故障中斷處理程序的設計 ................................ 39 初始化程序設計 .............................................. 40 軟件系統(tǒng)的優(yōu)化設計 .......................................... 42 結(jié)論 ............................................................... 43 參考文獻 ........................................................... 44 致謝 ............................................................... 46 安徽理工大學畢業(yè)設計 1 引言 逆變電源技術出現(xiàn)于 20世紀 60年代，是電力電子技術 中的一個重要組成部分，綜合了現(xiàn)代