DC Voltage Regulators thiab AC Voltage Regulators
Muaj peev xwm muab cov khoom siv hluav taws xob ruaj khov AC lossis DC fais fab mov rau cov khoom siv hluav taws xob. Xws li AC voltage stabilized fais fab mov thiab DC voltage stabilized fais fab mov ob pawg.
AC voltage stabilized fais fab mov tseem hu ua AC voltage stabilizer. Nrog rau txoj kev loj hlob ntawm cov cuab yeej siv hluav taws xob, tshwj xeeb tshaj yog cov tshuab computer siv hluav taws xob siv rau ntau yam kev lag luam, kev tshawb fawb tshawb fawb, ntau yam khoom siv hluav taws xob xav tau cov khoom siv hluav taws xob ruaj khov, cov khoom siv hluav taws xob ncaj qha tsis tuaj yeem ua tau raws li cov kev xav tau ntawm daim phiaj, qhov tshwm sim ntawm AC tswj. fais fab mov los daws qhov teeb meem no. Feem ntau siv AC voltage regulator fais fab mov: ① ferromagnetic resonant AC voltage regulator. Los ntawm saturated choke thiab coj capacitor, nrog tas li voltage volt-ampere yam ntxwv. ② magnetic amplifier hom AC voltage regulator. Sib nqus amplifier thiab autotransformer nyob rau hauv series, kev siv hluav taws xob circuits los hloov lub impedance ntawm magnetic amplifier kom stabilize cov zis voltage. ③Sliding hom AC voltage regulator. Stabilize cov zis voltage los ntawm kev hloov txoj hauj lwm ntawm zawv zawg sib cuag ntawm lub transformer. Inductive AC voltage regulator. Los ntawm kev hloov cov theem sib txawv ntawm theem nrab thiab thawj qhov hluav taws xob ntawm lub transformer, cov zis AC voltage yog stabilized. ⑤ Thyristor AC voltage regulator. Lub thyristor yog siv los ua lub zog hloov pauv. High stability, ceev teb thiab tsis muaj suab nrov. Txawm li cas los xij, nws ua rau muaj kev cuam tshuam rau cov khoom siv sib txuas lus thiab cov khoom siv hluav taws xob.Tom qab xyoo 1980, peb hom tshiab ntawm AC voltage stabilized fais fab mov tshwm sim: them nyiaj AC voltage stabilizer. Tus lej tswj hom thiab stepping hom AC voltage regulator. Purification hom AC voltage regulator. Nws muaj kev sib cais zoo thiab tuaj yeem tshem tawm qhov cuam tshuam ntawm kev cuam tshuam los ntawm kab hluav taws xob.
DC tswj fais fab mov Kuj tseem hu ua DC voltage regulator. Feem ntau ntawm nws cov khoom siv hluav taws xob yog AC fais fab mov, thaum AC fais fab mov voltage lossis load tsis kam hloov, qhov tso zis hluav taws xob ncaj qha ntawm tus tswj hwm tuaj yeem ruaj khov. Cov tsis muaj voltage regulator yog voltage stability, ripple yam thiab teb ceev. Tus qub qhia txog cov txiaj ntsig ntawm kev hloov pauv hauv qhov input voltage ntawm cov zis voltage. Ripple coefficient qhia tau hais tias nyob rau hauv cov kev ua haujlwm nyob rau hauv qhov ntsuas, qhov loj ntawm AC tivthaiv ntawm cov zis voltage; tom kawg qhia tau hais tias thaum lub input voltage los yog load hloov drastic, lub sij hawm yuav tsum tau rau qhov voltage kom rov qab mus rau qhov qub nqi. DC tswj fais fab mov muab faib ua ob pawg ntawm kev txuas txuas ntxiv thiab hloov pauv. Tus qub los ntawm lub transformer mus rau ib theem lossis peb-theem AC voltage mus rau qhov tsim nyog tus nqi, thiab tom qab ntawd kho, lim, kom tau txais cov khoom siv hluav taws xob tsis ruaj khov DC, thiab tom qab ntawd los ntawm regulator Circuit Court kom tau txais qhov ruaj khov voltage (los yog tam sim no). Cov kab hluav taws xob no yooj yim, me me ripple, kev sib cuam tshuam me me, tab sis qhov ntim loj, siv tau ntau dua, kev ua haujlwm tsawg (feem ntau tsawg dua 40% txog 60%). Lub tom kawg los hloov qhov hloov pauv (lossis hloov) ntawm lub sijhawm sib piv los tswj cov zis hluav taws xob, thiaj li ua tiav kev tswj hwm hluav taws xob. Hom kev siv hluav taws xob siv hluav taws xob no me me, qhov ua tau zoo tuaj yeem ncav cuag 85% lossis yog li ntawd. Yog li ntawd, nws tau txhim kho sai heev txij li xyoo 1980s. Los ntawm hom kev ua haujlwm tuaj yeem muab faib ua: ① tswj hom rectifier. Hloov lub sij hawm ntawm thyristor los kho qhov tso zis voltage. ② Chopper hom. Cov tswv yim yog tsis ruaj tsis khov DC voltage, hloov qhov sib piv ntawm qhov sib txawv ntawm qhov hloov pauv kom tau txais unidirectional pulsating DC, thiab tom qab ntawd lim kom tau txais qhov ruaj khov DC voltage. ③Converter hom. Tsis ruaj tsis khov DC voltage yog thawj zaug hloov mus rau hauv high-frequency alternating tam sim no los ntawm inverter, thiab ces coj mus kuaj los ntawm lub tshiab DC tso zis voltage tau tom qab transformer, rectifier, lim, thiab tawm tswv yim tswj ntawm lub inverter khiav hauj lwm zaus mus cuag lub hom phiaj ntawm stabilizing cov zis DC. hluav taws xob.
