Qhov Tseem Ceeb Qhov txawv - Online vs Offline UPS
UPS lossis Uninterrupted Power Supply yog ib qho khoom siv uas muab lub zog rau cov khoom tseem ceeb uas yuav tsum khiav tsis tu ncua yam tsis muaj kev cuam tshuam, txawm tias thaum muaj hluav taws xob poob. UPSs muaj ob hom: rotary / mechanical type, uas suav nrog cov motors thiab generators raws li lub zog hluav taws xob, thiab UPSs zoo li qub, uas muab lub zog thaub qab los ntawm lub txhab nyiaj roj teeb thiab ua haujlwm ntawm cov khoom siv hluav taws xob hluav taws xob. Online thiab offline UPSs yog categorized nyob rau hauv zoo li qub UPSs nyob ntawm lawv functionality. Qhov sib txawv tseem ceeb ntawm online thiab offline UPS yog tias offline UPSs fais fab tuag ncaj qha los ntawm lub mains thaum lub ntsiab khoom muaj nyob rau hauv internet UPSs muab lub hwj chim rau lub load los ntawm ib tug rectifier-inverter ua ke yam tsis tau txuas lub load ncaj qha mus rau lub mains.
Offline UPS yog dab tsi?
Lub sij hawm offline txhais tau hais tias lub txhab nyiaj roj teeb tsis txuas nrog (off-line) nrog cov khoom thauj hauv ib txwm ua haujlwm thaum lub zog tseem ceeb muaj. Hauv qhov xwm txheej no, lub zog hluav taws xob txuas ncaj qha mus rau qhov tso zis ntawm lub nra ntawm qhov hloov pauv zoo li qub uas feem ntau ON. Thaum lub zog tseem ceeb muaj, lub txhab nyiaj thaub qab roj teeb tau them los ntawm DC los ntawm lub charger unit uas muaj lub voj voog rectifier.
Thaum lub zog hluav taws xob lossis ntawm qhov loj hauv qhov hluav taws xob / hluav taws xob ntau dhau, qhov hloov hluav taws xob zoo li qub disconnects cov khoom tseem ceeb los ntawm kev thauj khoom thiab txuas lub roj teeb rau hauv lub sijhawm tsis tseem ceeb. Lub sijhawm hloov pauv lub zog rau lub roj teeb no feem ntau yog 10-25ms thiab nyob ntawm cov khoom siv hluav taws xob lossis hluav taws xob hluav taws xob hluav taws xob uas kuaj pom lub zog hluav taws xob poob thiab ua qhov hloov pauv.
Vim tias lub zog hluav taws xob txuas ncaj qha rau lub nra ntawm kev ua haujlwm ib txwm muaj, txhua qhov kev cuam tshuam xws li spikes, sags, thiab suab nrov hauv lub mains pom tseeb tshwm sim ntawm cov zis ntawm UPS. Txawm li cas los xij, muaj cov tshuab UPS uas ua qee yam ntawm lub zog txias ntawm cov zis. Kab sib tham sib UPSs yog xws li hom tshwj xeeb ntawm offline UPSs uas cuam tshuam nrog me me dhau-voltages lossis under-voltages uas tshwm sim hauv mains. Lawv ntiav ntau tus kais autotransformer lossis buck-boost transformer los hloov cov input mains voltage mus rau qhov tseeb tso zis voltage.
Daim duab 01: Kab Sib Tham Sib Tham UPS
Raws li muaj lub sijhawm hloov pauv tsis tau hauv UPSs offline, muaj qhov pom tseeb ntawm lub zog rau cov khoom sib txuas. Li no, hom UPSs no yog siv nrog cov khoom thauj xws li desktop computers, tshuab luam ntawv, teeb pom kev kub ceev, thiab lwm yam.uas muaj peev xwm lis xws li ib tug me me blackout. Offline UPS yog qhov pheej yig tshaj ntawm tag nrho UPSs vim lawv muaj qhov yooj yim tshaj plaws tsim.
UPS Online yog dab tsi?
Online UPSs yog siv los muab lub zog tsis cuam tshuam. Nyob rau hauv sib piv rau offline UPSs, online UPS tsis txuas lub mains fais fab rau cov zis. Es tsis txhob, nws muab AC rau lub load los ntawm lub rectifier-inverter ua ke, ib txhij them lub roj teeb. Thaum muaj kev cuam tshuam, lub rectifier nres ua haujlwm thiab lub txhab nyiaj roj teeb uas twb tau txuas nrog lub inverter muab lub zog rau lub nra. Yog li ntawd, yuav tsis muaj sijhawm hloov pauv hauv UPS online. Cov no tseem hu ua ob-hloov UPSs, txij li cov tswv yim AC hloov mus rau DC los ntawm lub rectifier, thiab rov qab mus rau AC los ntawm inverter.
Daim duab 02: Daim duab yooj yim ntawm UPS online
Tsis zoo li hauv UPS offline, qhov hloov pauv zoo li qub hauv online UPSs feem ntau OFF. Nws tsuas yog siv thaum muaj xwm txheej dhau los lossis thaum muaj qhov kub siab tam sim no tau kos los ntawm lub cev muaj zog txuas. Hauv qhov xwm txheej zoo li no, lub zog hluav taws xob hluav taws xob cuam tshuam nrog qhov hloov pauv zoo li qub pom qhov tam sim no siab thiab hloov cov khoom siv los ntawm inverter mus rau lub zog loj. Qhov no tiv thaiv kev puas tsuaj rau UPS cov khoom siv sab hauv los ntawm cov dej ntws siab.
Hauv online UPSs, lub rectifier yuav tsum muab lub zog rau lub nra thiab rau lub txhab nyiaj roj teeb rau them. Yog li ntawd, lub rectifier yuav tsum tuav lub load ntau dua thiab online UPSs feem ntau tuaj nrog cov dab dej kub loj. Ntxiv mus, UPSs online yog kim kim dua piv rau offline UPSs. Lawv tau siv nrog cov ntawv thov kev lag luam thiab cov chaw uas tsis muaj kev cuam tshuam cov khoom siv hluav taws xob yog qhov tseem ceeb xws li cov chaw zov me nyuam thiab cov tsev kho mob hnyav. Txawm hais tias lawv tau siv rau cov ntawv thov uas siv ntau dua 10kW, nrog rau kev nce qib ntawm cov thev naus laus zis thiab txo cov nqi, UPSs online tam sim no muaj rau cov khoom siv txawm tias tsawg dua 500W. Txawm hais tias muaj kev siv nyiaj ntxiv, UPSs online muab kev sib cais rau cov khoom thauj los ntawm cov khoom siv loj. Yog li, txhua qhov voltage distortion nyob rau hauv lub mains tsis propagate rau cov zis thiab cov khoom voltage rau lub load yuav ib txwm huv si.
Qhov txawv ntawm Online thiab Offline UPS yog dab tsi?
Online vs Offline UPS |
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| Online UPS tsis txuas lub zog hluav taws xob mus rau qhov chaw thau khoom ntawm kev ua haujlwm ib txwm lossis kev tawm haujlwm. Lub txhab nyiaj roj teeb yeej ib txwm nyob, nyob rau hauv kab nrog cov khoom thauj. | Lub txhab nyiaj roj teeb ntawm UPSs offline tsis nyob hauv kab nrog cov khoom thauj ntawm qhov xwm txheej ib txwm muaj. Lub mains yog txuas ncaj qha mus rau lub load. |
| Hloov ntawm ib txwm mus rau qhov xwm txheej thaub qab | |
| Vim tias lub roj teeb ib txwm txuas nrog lub nra, tsis muaj sijhawm hloov mus rau hauv online UPSs. Cov hloov pauv hloov txuas lub inverter rau lub nra ntawm ib txwm mob. | Muaj ib millisecond ntawm kev ncua sijhawm ntawm kev hloov pauv vim kev kuaj pom thiab hloov pauv los ntawm lub zog hluav taws xob hluav taws xob. |
| Tus nqi ntawm UPS online yog siab dua vim tias lub tshuab hluav taws xob tau tsim los tswj lub zog siab rau kev them nyiaj ib txhij thiab thauj khoom. | Offline UPSs yog qhov sib piv tsis tshua kim vim qhov yooj yim tsim. |
| Applications | |
| rhiab heev thiab tseem ceeb heev xws li cov cuab yeej kho mob, cov chaw zov me nyuam yog siv los ntawm UPSs online. Vim yog kev sib cais los ntawm mains mus rau lub load, yuav tsis muaj distortion ntawm cov zis. | Offline UPSs tsis muab kev cais tawm. Li no, yuav muaj qhov cuam tshuam ntawm qhov kev hloov pauv ntawm cov tswv yim cuam tshuam ntawm cov zis ntawm kev ua haujlwm ntawm offline UPS. |
Summary – Online vs Offline UPS
UPSs yog txhais tau tias muab lub zog rau cov khoom siv yam tsis muaj kev cuam tshuam ntawm lub zog hluav taws xob lossis qhov hluav taws xob loj heev hauv cov khoom siv loj. UPSs tau muab faib ua online thiab offline UPSs, uas yog UPS zoo li qub ua haujlwm ntawm cov khoom siv hluav taws xob semiconductor. Online UPSs tuaj yeem muab lub zog tsis muaj kev cuam tshuam yam tsis muaj kev hloov pauv qeeb vim lawv lub roj teeb ib txwm txuas nrog lub inverter los ntawm kev thauj khoom txawm tias lub sijhawm ua haujlwm ib txwm muaj. Nyob rau hauv sib piv, offline UPSs ncaj qha txuas mains mov rau lub load ntawm ib txwm ua hauj lwm thiab tsub roj teeb los ntawm lub rectifier. Thaum tsaus ntuj, qhov hloov pauv hloov mus txuas rau lub inverter rau lub nra kom muab AC lub zog los ntawm hloov DC fais fab hauv lub roj teeb. Qhov no yog qhov sib txawv tseem ceeb ntawm online thiab offline UPS. Tsis zoo li UPSs offline, UPSs online muab kev sib cais ntawm lub zog loj thiab lub nra. Yog li txhua qhov voltage distortion tsis dhau mus rau qhov tso zis hluav taws xob los ntawm online UPS. Txawm li cas los xij, ntawm qhov kev siv hluav taws xob cuam tshuam, tus nqi ntawm UPSs offline yog qis dua li hauv online UPSs.
Download PDF Version ntawm Online vs Offline UPS
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li cov ntawv sau tseg. Thov download PDF version ntawm no Qhov txawv Ntawm Online thiab Offline UPS.
