智能在線式不間斷電源設(shè)計(jì)

電子信息工程論文編號(hào):DZXX145  論文字?jǐn)?shù):16802,頁(yè)數(shù):48

目錄
摘要 II
Abstract III
第1章  緒論 1
1.1 引言 1
1.2 UPS發(fā)展現(xiàn)狀 1
1.3 UPS的分類(lèi) 2
1.4電源工作原理及工作過(guò)程 4
1.4.1電源工作原理 4
1.4.2電源工作過(guò)程 5
1.5本文的設(shè)計(jì)要求及思路 5
第2章  正弦信號(hào)產(chǎn)生 7
2.1 ICL8038 7
2.1.1 ICL8038簡(jiǎn)介 7
2.1.2 8038在本設(shè)計(jì)中的應(yīng)用 8
2.2 LM324的應(yīng)用 10
2.3 精密整流 10
2.4 加法電路 12
第3章  逆變 15
3.1 逆變電路概述 15
3.2 PWM控制方式 16
3.3 SG3524-SPWM控制電路分析 17
3.3.1 SG3524電路結(jié)構(gòu)及工作原理 17
3.3.2 利用SG3524生成SPWM信號(hào) 19
3.4 逆變電路分析 20
3.5諧波分析 22
3.6 IR2110介紹 27
3.7 自舉元器件的分析與設(shè)計(jì) 28
3.7.1 自舉電容的設(shè)計(jì) 29
3.7.2 自舉二極管的選擇 29
3.8 IR2110應(yīng)用 29
第4章  充電 31
4.1 UPS蓄電池的選擇 31
4.2 充電電路關(guān)鍵器件介紹 32
第5章  反饋 34
5.1四電壓比較器LM339簡(jiǎn)介 34
5.2 電壓負(fù)反饋閉環(huán)控制 35
5.3 DC/DC變換 36
5.4 保護(hù)控制電路 37
5.5 PI調(diào)節(jié) 38
5.6 分相 39
總結(jié) 40
致謝 41
參考文獻(xiàn) 42
附錄一  硬件總電路 43
附錄二  實(shí)物照片 44

摘要
    電，從出現(xiàn)以來(lái)，人類(lèi)就已經(jīng)離不開(kāi)它了！你能夠想象整個(gè)世界變的一片漆黑以后會(huì)是什么樣的嗎？但現(xiàn)實(shí)生活中，無(wú)可避免的會(huì)碰到斷電的時(shí)候，UPS就這樣應(yīng)運(yùn)而生。自二十世紀(jì)六十年代到現(xiàn)在，雖然只有短短幾十年的時(shí)間，但它的發(fā)展是極為迅速的，已出現(xiàn)了各種形式的UPS。
    本設(shè)計(jì)設(shè)計(jì)了一種在線式UPS：當(dāng)市電輸入正常時(shí)，由市電給負(fù)載供電，同時(shí)對(duì)蓄電池進(jìn)行充電；當(dāng)斷電時(shí)，由12V蓄電池將直流電轉(zhuǎn)變成大多數(shù)電器所需要的220V交流電。ICL8038把輸入的直流電壓轉(zhuǎn)變成正弦波，再用精密整流把正弦波轉(zhuǎn)換成饅頭波，經(jīng)過(guò)SG3524產(chǎn)生SPWM波，通過(guò)IR2110驅(qū)動(dòng)電路最后由脈沖變壓器把SPWM波經(jīng)濾波后產(chǎn)生所需交流電。試驗(yàn)表明該系統(tǒng)輸出波形和性能良好，達(dá)到了設(shè)計(jì)要求，適用于家庭用戶使用。

關(guān)鍵詞：正弦波;逆變;SG3524;SPWM

Abstract

      Electricity, human have not lived without it, since it was discovered! Can you imaged the whole world get black, then being what? But in our daily life, power-down it's avoidance, so UPS occurs. Form the 1960s to now, although it's just a few years, but development is so quickly, market has many kinds of UPS.
      This architect designing a kind of UPS,which is on-line: When the 220V electric voltage is in good order, it gives electricity to the load and refresh to the storage battery; when the 220V electric voltage blockouts,I2V of storage battery DC into 220V AC. ICL8038 DC input voltage into sine wave, and then put Rectifier precision sine wave into buns, After SG3524 SPWM wave generated, IR2110 driver circuit through the final SPWM pulse transformers are used to wave generated by the filter for AC. Experiment results indicate that system output waveform and running performance are much better, and design requirements are satisfied. It is suit for the family user to use.

Keywords: sine wave; inverter; SG3524;SPWM