【正文】 1 中文題目 ：基于 DSP 帶同步鎖相的逆變器控制系統(tǒng)設(shè)計(jì) 外文題目 ： A Design of Phase Locked Inversion Control System Based on DSP 畢業(yè)設(shè)計(jì)（論文）共 頁（其中：外文文獻(xiàn)及譯文 頁） 圖紙共 張 完成日期 20年月 答辯日期 20年月 摘要 宋體四號(hào)居中 2 UPS ( Uninterruptible Power System)是一種電力設(shè)備，當(dāng)電網(wǎng)供電出現(xiàn)緊急故障時(shí)： UPS逆變電源可以利用蓄電池為負(fù)載提供應(yīng)急供電。同時(shí) UPS 也具有改善電網(wǎng)電力質(zhì)量的作用。我國(guó) UPS 市場(chǎng)需求巨大，每年 UPS 的市場(chǎng)銷售量大約在 80 億元人民幣。除了電信、金融等行業(yè)對(duì) UPS 的需求居高不下之外，制造業(yè)、交通業(yè)、能源業(yè)對(duì)于 UPS 的需求量呈現(xiàn)上升趨勢(shì)。 本文介紹了 UPS 逆變電源的組成，分析了各部分的作用及其工作原理，研究了實(shí)現(xiàn)UPS 逆變控制的關(guān)鍵技術(shù)。在此基礎(chǔ)上，設(shè)計(jì)了基于 DSP 的 UPS 逆變控制系統(tǒng)，提出了一套融合軟硬件的適用于 UPS 逆變電源的數(shù)字化精準(zhǔn)控制方案。 UPS 逆變電源的控制系統(tǒng)的硬件電路設(shè)計(jì)采用 TI 公司的 32 位 TMS320LF2407A 作為逆變控制信號(hào)和驅(qū)動(dòng)控制信號(hào)產(chǎn)生的主芯片。本文在 Album Designer 軟件環(huán)境下繪制電路原理圖和 PCB 電路板。在電路板設(shè)計(jì)中加入了各種抗干擾措施，提升了系統(tǒng)的穩(wěn)定性。 在完成 UPS 逆變電源控制系統(tǒng)的軟硬件設(shè)計(jì)的基礎(chǔ)上，本文將控制系統(tǒng)和 UPS 整機(jī)進(jìn)行聯(lián)合調(diào)試。調(diào)試結(jié)果表明，在本文設(shè)計(jì)的 UPS 逆變電源控制系統(tǒng)的協(xié)調(diào)下，可以使得UPS 整機(jī)正常工作， IGBT 驅(qū)動(dòng)信號(hào)和可控硅 控制信號(hào)正常，輸出信號(hào)可以精確地跟蹤市電頻率，并且保持相位一致，同時(shí)輸出電壓抑制了輸入電壓中的高次諧波，改善了電網(wǎng)的質(zhì)量。 關(guān)鍵詞 :正弦脈寬調(diào)制 SPWM； TMS320LF2407A；電力電子系統(tǒng)；逆變器；數(shù)字化精準(zhǔn)控制 1 ABSTRACT UPS (Uninterrupted Power Supply) is an electrical equipment that can provide emergent power supply by use of storage battery when power failure. In addition, UPS can improve the quality of mains power country has large demand for UPS. The annual sales of UPS reach to 8 billion yuan. The demand is continuously large in the field of telemunication and finance and begins to rise in the field of manufacturing, transportation and energy source. This dissertation introduces the structure of UPS, analyzes the function and operation principle of each part of UPS and studies the key technique for UPS inversion contro l. The UPS inversion control system based on DSP is put forward. The system is bined with hardware design and software design and is suitable for digital accurate control. In terms of the hardware design of UPS inversion control system, TMS320LF2407A, the 32bit DSP manufactured by TI, is used to control inverter and generate drive signal for IGBT and SCR. EPM240T 100C, the high performance and low power consumption manufactured by Altera, is used for interface extension and phase shift of drive signal. The schematics and printed circuit board are designed in the environment of Altium Designer. Antiinterference methods are adopted to enhance system stability. After hardware design and software design, the control board is jointtested with UPS. The result shows that under the coordination of UPS inversion control system designed in this dissertation, IGBT drive signal and SCR control signal can be correctly generated so that UPS can work normally. The output signal can accurately trace the frequency of mains power supply, keeping the phase consistent. What39。s more, the output signal improves the quality of mains power supply by reducing high harmonic wave. KEY WORD:SPWM； TMS320LF2407A； Digital Accurate Control； LargePower Inverter；Power Electronics System 1 目錄 0 前言 .............................................................................................................................................. 1 1 緒論 .............................................................................................................................................. 2 選題的背景和意義 ................................................................................................................ 2 UPS 逆變電源的分類 ............................................................................................................. 2 被動(dòng)后備式 (Passive Standby) ........................................................................................ 3 在線互動(dòng)式 (LineInteractive)......................................................................................... 4 雙轉(zhuǎn)換式 (Double Conversion ) ...................................................................................... 5 UPS 逆變電源的發(fā)展趨勢(shì)和數(shù)字化控制的意義 .................................................................... 5 采用 DSP 設(shè)計(jì)電路的優(yōu)越性體現(xiàn) ................................................................................. 6 本章小結(jié) ........................................................................................................................ 7 2 在線式 UPS 的系統(tǒng)結(jié)構(gòu) ................................................................................................................. 1 在線式 UPS 系統(tǒng)框圖 .................................................................................................................. 1 在線式 UPS 系統(tǒng)組成 ............................................................................................................ 1 在線式 UPS 的工作原理 ........................................................................................................ 3 本章小結(jié) ............................................................................................................................... 4 3 功率因數(shù)校正 ................................................................................................................................ 1 概述 ................................................................................................................................... 1 諧波的產(chǎn)生及危害 .................................................................................................... 1 功率因數(shù)的定義 ........................................................................................................ 2 提高功率因數(shù)的方法 ................................................................................................. 2 BOOST 型 PFC 電路的分析 ................................................................................................. 2 主電路與 DSP 的連接 ................................................................................................ 3 采樣電路 .................................................................................................................. 4