Qhov txawv ntawm AC thiab DC yog dab tsi tiag?

Hauv peb lub neej txhua hnub, peb yuav tsum siv hluav taws xob txhua hnub, thiab peb tsis paub txog hluav taws xob ncaj qha thiab hluav taws xob hloov pauv, piv txwv li, cov hluav taws xob tso tawm ntawm lub roj teeb yog hluav taws xob ncaj qha, thaum hluav taws xob hauv tsev thiab kev lag luam yog hluav taws xob hloov pauv, yog li qhov txawv ntawm ob hom hluav taws xob no yog dab tsi?

Tam sim no ncaj qha

"Current ncaj qha", tseem hu ua "current tas mus li", constant current yog ib hom current ncaj qha, yog qhov loj me thiab kev coj ntawm tam sim no tsis hloov pauv raws sijhawm.
Hloov pauv tam sim no

Hloov pauv tam sim no (AC)yog ib qho tam sim no uas nws qhov loj thiab kev coj hloov pauv tas li, thiab hu ua alternating current lossis tsuas yog alternating current vim tias tus nqi nruab nrab ntawm cov tam sim no tas li hauv ib lub voj voog yog xoom.
Cov kev taw qhia yog tib yam rau cov hluav taws xob sib txawv. Feem ntau cov waveform yog sinusoidal. Cov hluav taws xob hloov pauv tuaj yeem xa hluav taws xob tau zoo. Txawm li cas los xij, muaj lwm cov waveforms uas tau siv tiag tiag, xws li cov nthwv dej peb ceg thiab cov nthwv dej plaub fab.

Kev sib txawv

1. Kev Taw Qhia: Hauv cov hluav taws xob ncaj qha, qhov kev taw qhia ntawm cov hluav taws xob yeej ib txwm zoo li qub, ntws mus rau hauv ib qho kev taw qhia. Qhov sib txawv, qhov kev taw qhia ntawm cov hluav taws xob hauv cov hluav taws xob hloov pauv tas li, hloov pauv ntawm cov kev taw qhia zoo thiab tsis zoo.

2. Kev hloov pauv ntawm lub zog hluav taws xob: Lub zog hluav taws xob ntawm DC tseem ruaj khov thiab tsis hloov pauv raws sijhawm. Ntawm qhov tod tes, lub zog hluav taws xob ntawm alternating current (AC), ntawm qhov tod tes, yog sinusoidal raws sijhawm, thiab qhov zaus feem ntau yog 50 Hz lossis 60 Hz.

3. Qhov nrug ntawm kev kis: DC muaj qhov poob zog me me thaum lub sijhawm kis thiab tuaj yeem kis tau mus deb. Thaum lub zog AC hauv qhov kev kis mus deb yuav muaj qhov poob zog loj, yog li yuav tsum tau kho thiab them rov qab los ntawm lub transformer.

4. Hom fais fab mov: Cov chaw muab fais fab rau DC suav nrog roj teeb thiab lub hnub ci hlwb, thiab lwm yam. Cov chaw muab fais fab no tsim cov hluav taws xob DC. Thaum lub zog AC feem ntau yog tsim los ntawm cov chaw tsim hluav taws xob thiab muab los ntawm cov transformers thiab cov kab xa hluav taws xob rau kev siv hauv tsev thiab kev lag luam.

5. Cov Cheeb Tsam Siv: DC feem ntau siv rau hauv cov khoom siv hluav taws xob, tsheb fais fab,Chaw Them Nqi EV, thiab lwm yam. AC siv dav hauv kev siv hauv tsev. Alternating current (AC) siv dav hauv hluav taws xob hauv tsev, kev tsim khoom lag luam, thiab kev xa hluav taws xob.

6. Lub zog tam sim no: Lub zog tam sim no ntawm AC tuaj yeem hloov pauv hauv cov voj voog, thaum DC feem ntau tseem ruaj khov. Qhov no txhais tau tias rau tib lub zog, lub zog tam sim no ntawm AC yuav loj dua li DC.

7. Cov teebmeem thiab kev nyab xeeb: Vim muaj kev hloov pauv ntawm qhov kev taw qhia tam sim no thiab qhov voltage ntawm alternating current, nws yuav ua rau muaj hluav taws xob electromagnetic, inductive thiab capacitive. Cov teebmeem no yuav muaj kev cuam tshuam rau kev ua haujlwm ntawm cov khoom siv thiab kev noj qab haus huv ntawm tib neeg nyob rau hauv qee qhov xwm txheej. Qhov sib piv, DC fais fab tsis muaj cov teeb meem no thiab yog li ntawd nyiam rau qee yam khoom siv rhiab heev lossis cov ntawv thov tshwj xeeb.

8. Kev Poob Qis ntawm Kev Xa Mus Los: Lub zog DC muaj kev poob qis ntawm lub zog thaum xa mus deb vim tias nws tsis raug cuam tshuam los ntawm kev tiv thaiv thiab kev cuam tshuam ntawm lub zog AC. Qhov no ua rau DC ua haujlwm tau zoo dua hauv kev xa mus deb thiab kev hloov pauv fais fab.

9. Tus nqi khoom siv: Cov khoom siv AC (piv txwv li, transformers, generators, thiab lwm yam) yog qhov ntau dua thiab laus dua, thiab yog li ntawd nws tus nqi qis dua. Cov khoom siv DC (piv txwv li,cov inverters, cov khoom tswj hluav taws xob, thiab lwm yam), ntawm qhov tod tes, feem ntau kim dua. Txawm li cas los xij, nrog rau kev txhim kho ntawm DC thev naus laus zis, tus nqi ntawm cov khoom siv DC maj mam txo qis.