【正文】 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 device can output a sinusoidal alternating current. This paper analyzes the variable frequency power supply technology 安徽理工大學(xué)畢業(yè)設(shè)計(jì) III 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(xué)畢業(yè)設(shè)計(jì) i 目錄 摘要 (中文 ).......................................................... I 摘要 (外文 )......................................................... II .............................................................. 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(gòu) ......................................... 5 SPWM 控制技術(shù)及其原理 ...................................... 6 逆變系統(tǒng)的原理 ......................................... 6 SPWM 控制基礎(chǔ) ........................................ 7 PWM 波形的基本原理 ................................... 8 SPWM 采樣方法對(duì)比分析 ...................................... 9 SPWM 控制方式分析 ......................................... 13 單極性 SPWM 控制方式 ................................. 13 雙極性 SPWM 控制方式 ................................. 14 單極性和雙極性調(diào)制比較 ................................ 15 使用 DSP 實(shí)現(xiàn) SPWM 波 ...................................... 15 DSP 的事件（ EV）管理器模塊介紹 ....................... 15 DSP 中斷及中斷向量 ................................... 19 DSP 控制三相 SPWM 波形產(chǎn)生原理分析 .................. 20 DSP 系統(tǒng)的硬件設(shè)計(jì)與研究 .................................... 22 三相逆變電源主電路結(jié)構(gòu)的比較分析 ............................ 22 基于 DSP 系統(tǒng)的逆變電源硬件結(jié)構(gòu)設(shè)計(jì) ......................... 22 硬件結(jié)構(gòu)圖 ............................................ 22 整流、濾波電路的設(shè)計(jì) .................................. 23 輸出濾波電路的設(shè)計(jì) .................................... 24 智能功率模塊 IPM 的設(shè)計(jì) ..................................... 25 智能功率模塊 IPM 的介紹 ............................... 25 IPM 模塊的選擇 ....................................... 26 安徽理工大學(xué)畢業(yè)設(shè)計(jì) ii DSP 與 IPM 的連接電路 ................................. 27 DSP 控制電路的設(shè)計(jì) ......................................... 28 DSP 芯片的特點(diǎn)與選取 ................................. 28 以 TMS320LF2407A 為核心的控制電路設(shè)計(jì) ................ 29 電源電路的設(shè)計(jì) ........................................ 33 硬件系統(tǒng)的優(yōu)化設(shè)計(jì) .......................................... 34 ............................................... 35 DSP 系統(tǒng)軟件設(shè)計(jì) ........................................... 35 系統(tǒng)主程序設(shè)計(jì) ........................................ 35 初始化模塊 ............................................ 36 利用查表法生產(chǎn) SPWM 波 ............................... 37 故障中斷處理程序的設(shè)計(jì) ................................ 37 初始化程序設(shè)計(jì) .............................................. 38 軟件系統(tǒng)的優(yōu)化設(shè)計(jì) .......................................... 40 結(jié)論 ............................................................... 41 參考文獻(xiàn) ........................................................... 42 致謝 ............................................................... 44 安徽理工大學(xué)畢業(yè)設(shè)計(jì) 1 引言 逆變電源技術(shù)出現(xiàn)于 20世紀(jì) 60年代，是電力電子技術(shù)中的一個(gè)重要組成部分，綜合了現(xiàn)代電力電子開關(guān)器件應(yīng)用、功率變換、模擬數(shù)字電子技術(shù)、 PWM技術(shù)以及控制技術(shù)等多門學(xué)科的實(shí)用技術(shù)。 通過分析 SPWM波形產(chǎn)生規(guī)律和特點(diǎn)，選擇了以不對(duì)稱規(guī)則采樣法為基礎(chǔ)實(shí)現(xiàn)的單極性 SPWM控制，并且具體介紹了 DSP實(shí)現(xiàn) SPWM。 本文 采用美國德州儀器公司(TI)新近推出的一種 TMS320LF2407A 數(shù)字信號(hào)處理器，作為逆變電源中的核心控制部分進(jìn)行研究。目前逆變電源的核心部分就是逆變器和其控制部分，雖然在控制方法上已經(jīng)趨于成熟，但是其控制方法實(shí)現(xiàn)起來還是有所困難。逆變電源技術(shù)是一門綜合性的 產(chǎn) 業(yè)技術(shù)，它橫跨電力、電子、微處理器及自動(dòng)控制等多學(xué)科領(lǐng)域，是目前電力電子產(chǎn)業(yè)和科研的熱點(diǎn)之一。逆變電源廣泛應(yīng)用于航空、航海、電力、鐵路交通、郵電通信等諸多領(lǐng)域。因此，對(duì)逆變電源的控制和逆變器進(jìn)行深入研究具有很大的現(xiàn)實(shí)意義。以實(shí)現(xiàn)所研制的逆變裝置 能 輸出標(biāo)準(zhǔn)的正弦交流電。 文中 設(shè)計(jì)出了整個(gè)逆變電源的硬件結(jié)構(gòu)，其主要核心部分是IPM和 DSP控制部分。隨著信息技術(shù)的發(fā)展，逆變電源越來越廣泛地應(yīng)用于各個(gè)領(lǐng)域，早期的逆變電