【正文】 I 畢業(yè)設(shè)計(jì) PWM 控制 的單相 逆變電源系統(tǒng)設(shè)計(jì) 摘 要 隨著國民經(jīng)濟(jì)的高速發(fā)展和國內(nèi)外能源供應(yīng)的緊張，電能的開發(fā)和利用顯得更為重要。尤其是面對經(jīng)濟(jì)和科學(xué)技術(shù)發(fā)展的今天，一款穩(wěn)定，易攜帶的交流電源正是我們現(xiàn)在方便生活重要的一種途徑。目前，國內(nèi)外都在致力于發(fā)展新能源，太陽能發(fā)電，風(fēng)力發(fā)電，潮汐發(fā)電等。但是這些電能最終輸出的都是不穩(wěn)定的交流電，要想得到一款穩(wěn)定的交流電源，逆變技術(shù)就要發(fā)揮極大的用處了。 本文設(shè)計(jì)的單 相 PWM 逆變電源屬于交流電源，采用電壓反饋控制，通過調(diào)節(jié)占空比的方法來改變驅(qū)動電壓脈沖寬度來調(diào)整和穩(wěn)定 輸出電壓。其主電路構(gòu)成采用的是 Boost 電路和全橋電路的組合?？刂齐娐凡捎玫氖?IR2110 控制，產(chǎn) 生 PWM 波觸發(fā)橋式電路，升壓電路，輸出穩(wěn)定電壓，本文還設(shè)計(jì)了過流保護(hù)電路，提高了系統(tǒng)的穩(wěn)定性。 本文詳細(xì)的分析了逆變電源的工作過程，并推到了重要的公式，最后對設(shè)計(jì)進(jìn)行了仿真設(shè)計(jì)，驗(yàn)證了系統(tǒng)的可行性。 關(guān)鍵詞 ： 逆變技術(shù)， 脈沖寬度調(diào)制 ，場效應(yīng)管，升壓電路 II Design of Single Phase Inventer Power System Controlled of Pwm Abstract With the highspeed developing of national economy and the shortage supply of world electrical energy supplies, the development and utilization of electric power is more important. Especially in the face of economic and scientific and technological development today, a stable, easy to carry AC power is important that we are now a way of life convenient. At present, domestic and foreign are mitted to the development of new energy sources, solar power, wind power, tidal power generation. But these are unstable final output power AC, in order to get a stable AC power inverter technology will play a significant useful. This design of singlephase PWM inverter power belongs to AC power, voltagefeedback control method by adjusting the duty cycle of the pulse width of the drive voltage is changed to adjust and stabilize the output voltage. The main circuit Boost circuit is used in bination and a fullbridge circuit. Control circuit uses a IR2110 control, PWM wave trigger bridge circuit, the boost circuit, stable output voltage, the paper also designed the overcurrent protection circuit to improve system stability. This detailed analysis of the inverter39。s work process, and pushed to the important formula, the final design of the design of the simulation to verify the feasibility of the system. Keywords: inverter technology, pulse width modulation, FET,boost circuit III 目 錄 摘 要 ............................................................................................................................ I Abstract.......................................................................................................................... II 第 1 章 緒論 ................................................................................................................. 1 背景 ................................................................................................................. 1 目前研究現(xiàn)狀 ................................................................................................. 3 UPS 及交流凈化電源 ............................................................................ 3 交流穩(wěn)壓電源 ....................................................................................... 4 工業(yè)電源的發(fā)展 ................................................................................... 4 直流開關(guān)電源 ....................................................................................... 5 論文主要研究內(nèi)容 ......................................................................................... 6 第 2 章 系統(tǒng)方案及基本原理 ..................................................................................... 7 系統(tǒng)的基本要求 ............................................................................................. 7 系統(tǒng)實(shí)現(xiàn)的理論基礎(chǔ) ..................................................................................... 7 采樣理論 ............................................................................................... 7 面積等效原理 ....................................................................................... 9 PWM 逆變電路及控制方法 ................................................................ 11 Boost 升壓電路 .................................................................................... 15 系統(tǒng)可行方案和選擇 ................................................................................... 17 第 3 章 系統(tǒng)的主要模塊 ........................................................................................... 20 系統(tǒng)的主要組成 ........................................................................................... 20 系統(tǒng)主電路設(shè)計(jì) ........................................................................................... 20 主電路拓?fù)? ......................................................................................... 20 IV 主電路工作過程 ................................................................................. 21 主電路參數(shù)設(shè)計(jì) ................................................................................. 23 IR2110 芯片控制電路的設(shè)計(jì) ....................................................................... 26 輔助 電路的設(shè)計(jì) ........................................................................................... 28 過流保護(hù)電路 ..................................................................................... 28 開關(guān)管驅(qū)動信號電路 ......................................................................... 29 LC 濾波電路 ........................................................................................ 30 第 4 章 仿真分析 ....................................................................................................... 31 仿真目的 ....................................................................................................... 31 仿真電路 ....................................................................................................... 31 主電路仿真圖 ..................................................................................... 31 PWM 產(chǎn)生圖 ........................................................................................ 31 仿真波形 ...................................................................