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《高壓軟開關(guān)充電電源硬件設(shè)計(jì)--電氣專業(yè)畢業(yè)設(shè)計(jì)》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、哈爾濱理工大學(xué)學(xué)士學(xué)位論文高壓軟開關(guān)充電電源硬件設(shè)計(jì)摘要電源對(duì)于所有用電設(shè)備是必不可少的。開關(guān)電源取消了傳統(tǒng)電源采用的笨重的工頻變壓器，使得電源的體積大大縮小。電源中的電力電子器件工作在開關(guān)狀態(tài)，使整機(jī)效率很高。由于它具有體積小、重量輕和效率高的優(yōu)點(diǎn)，因而發(fā)展非常迅速，應(yīng)用范圍日益擴(kuò)大。本文簡(jiǎn)要介紹了開關(guān)電源的基本結(jié)構(gòu)、工作原理以及其發(fā)展?fàn)顩r和技術(shù)的發(fā)展趨勢(shì)，并對(duì)開關(guān)電源的分類和優(yōu)缺點(diǎn)進(jìn)行了闡述。本文還介紹了減小開關(guān)電源體積和開關(guān)損耗的技術(shù)——軟開關(guān)技術(shù)。在前面知識(shí)的基礎(chǔ)上，本論文利用諧振開關(guān)技術(shù)設(shè)計(jì)了一臺(tái)給高壓脈沖電容充電的高壓軟開關(guān)電源。在諧振開關(guān)技術(shù)中最適合給脈沖電容充電的電路是串聯(lián)諧
2、振開關(guān)電路,輸出近似為恒流源或稱“等臺(tái)階充電”,突出的優(yōu)點(diǎn)是充電效率高且電路本身具有短路保護(hù)能力。整個(gè)裝置利用DSP實(shí)現(xiàn)電路的控制、PWM信號(hào)形成及電路的保護(hù)。由于采用了全數(shù)字的控制,充電的穩(wěn)定度很高。裝置的開關(guān)頻率是20kHz,屬于高頻,因此使得每次開關(guān)所充的電量較小,這大大提高了充電的精度。關(guān)鍵詞開關(guān)電源；軟開關(guān)；充電-III-哈爾濱理工大學(xué)學(xué)士學(xué)位論文High-pressuredSoftSwitchChargePowerSourceHardwareDesignAbstractThepowersupplyisessentialtoallequipment,whichuseselectri
3、city.Theswitchingpowersupplyhascancelledtheconversiondepressorthattraditionalpowersourcesadopt,causingthevolumeofthepowersourcetoreducegreatly.Inpowersupply,electronicdeviceworksinsoftswitchcondition,sotheentireefficiencytobeveryhigh.Becausethevolumeissmall,theweightislightandtheefficiencyhighthusi
4、tdevelopsextremelyrapidly,theapplicationofthesoftswitchingpowersupplyexpandsdaybyday.Thisarticlebrieflyintroducedtheswitchingpowersupplybasicstructure,theprincipleofworkaswellasitsdevelopmentconditionandthetechnicaldevelopmenttendency.Inaddition,startedfromoppositedirectionsfolioturnsoffthepowersou
5、rcetheclassification,andthevirtuesanddefectshascarriedindetail.Thisarticlealsointroducedanewtechnical—softswitchtechnologywhichtheswitchingpowersupplyvolumeandtheswitchlosscanbeavoided.Infrontknowledgefoundation,presentpaperuseresonance-switchtechnicaldesignonetooforhigh-pressuredpulseelectriccapac
6、itychargehigh-pressuresoftswitchingpowersupply.Thepulseelectriccapacitychargeintheresonantswitchtechnologythe-III-哈爾濱理工大學(xué)學(xué)士學(xué)位論文electriccircuitistheseriesresonanceswitchincircuits,Outputsisapproximateforthepermanentcurrentsourceorcalls"thestaircharge”.Theprominentmeritisthechargeefficiencyishighalso
7、hasinherentlyshort-circuitstheprotectionability.Entirerealizestheelectriccircuitcontrol,thePWMsignalusingDSPformsandtheelectriccircuitprotection.Becauseithasusedentiredigitalcontrol,thechargestabilityisvery
