Cov teeb meem Capacitive Load Feem ntau ntsib los ntawm Diesel Generator Teeb hauv Data Center

Ua ntej tshaj plaws, cia peb txwv qhov kev sib tham kom peb tsis txhob xoob dhau. Lub tshuab hluav taws xob sib tham ntawm no yog hais txog lub tshuab hluav taws xob tsis zoo, peb-theem AC synchronous generator, hauv qab no tsuas yog hu ua "generator".
Hom tshuab hluav taws xob no muaj tsawg kawg yog peb qhov tseem ceeb hauv qab no, uas yuav tau hais hauv kev sib tham hauv qab no:
Main generator, muab faib ua lub ntsiab stator thiab lub ntsiab rotor; Lub ntsiab rotor muab cov magnetic teb, thiab lub ntsiab stator generates hluav taws xob los muab lub load. Exciter, exciter stator thiab rotor; Lub exciter stator muab ib qho chaw sib nqus, lub rotor tsim hluav taws xob, thiab tom qab raug kho los ntawm kev sib hloov commutator, nws muab lub zog rau lub ntsiab rotor. Lub tshuab hluav taws xob tsis siv neeg hluav taws xob (AVR) kuaj pom qhov tso zis hluav taws xob ntawm lub tshuab hluav taws xob tseem ceeb thiab tswj qhov tam sim no ntawm exciter stator coil kom ruaj khov cov zis hluav taws xob ntawm lub ntsiab stator.
AVR voltage regulation hauj lwm piav qhia
Lub hom phiaj ntawm kev ua haujlwm ntawm AVR yog txhawm rau txhim kho lub tshuab hluav taws xob tso zis hluav taws xob, uas tseem hu ua "regulator" hauv cov ntsiab lus nrov.
Nws txoj haujlwm yog: thaum qhov tso zis hluav taws xob ntawm lub tshuab hluav taws xob qis dua li tus nqi teev, lub exciter stator tam sim no tau nce, uas yog sib npaug rau kev ua kom lub zog tam sim no ntawm lub ntsiab rotor, kom lub tshuab hluav taws xob tseem ceeb nce mus rau tus nqi teev; Txwv tsis pub, lub excitation tam sim no raug txo thiab qhov voltage poob. Yog tias lub tshuab hluav taws xob tso zis hluav taws xob sib npaug ntawm tus nqi teeb tsa, AVR tswj cov zis uas twb muaj lawm yam tsis muaj kev hloov kho.
Tom qab ntawd lub load, raws li theem kev sib raug zoo ntawm kev faib tawm tam sim no thiab voltage, AC load yuav muab faib ua peb pawg:
Resistive loads qhov twg tam sim no nyob rau theem nrog voltage thov rau lawv; inductive load, theem tam sim no lags qab voltage; Capacitive load, theem tam sim no ua ntej voltage. Kev sib piv ntawm cov yam ntxwv ntawm peb lub loads pab peb kom nkag siab txog lub peev xwm load zoo dua.
Rau cov loads resistive, qhov loj dua load, ntau dua qhov excitation tam sim no yuav tsum tau rau lub ntsiab rotor (kom stabilize cov zis voltage ntawm lub generator).
Hauv kev sib tham hauv qab no, peb yuav coj qhov excitation tam sim no xav tau los ntawm cov khoom siv tiv thaiv raws li tus qauv siv, uas yog, loj dua nws peb hu qhov loj dua; Txhua yam me dua qhov peb hu me me.
Thaum lub load ntawm lub tshuab hluav taws xob yog inductive, lub ntsiab rotor yuav xav tau ntau dua tam sim no kom muaj qhov ruaj khov tso zis voltage.
Capacitive load
Thaum lub tshuab hluav taws xob ntsib lub peev xwm thauj khoom, lub rotor tseem ceeb yuav tsum tsis tshua muaj kev txaus siab tam sim no, uas yog, qhov kev tawm dag zog tam sim no yuav tsum raug txo kom stabilize cov zis voltage ntawm lub tshuab hluav taws xob.
Vim li cas qhov no tshwm sim?
Peb yuav tsum nco ntsoov tias tam sim no ntawm lub capacitive load yog ua ntej ntawm qhov voltage, thiab cov tam sim no siab heev (ntws los ntawm lub ntsiab stator) yuav tsim induced tam sim no nyob rau hauv lub ntsiab rotor, uas yog cia li nyob rau hauv zoo superposition nrog lub exciting tam sim no, yog li ntawd. lub ntsiab rotor magnetic teb yog txhim kho. Yog li ntawd, tam sim no los ntawm exciter yuav tsum tau txo kom cov zis voltage ntawm lub generator ruaj khov.
Qhov loj dua lub capacitive load, qhov me me qhov tso zis exciter yuav tsum yog. Thaum lub capacitive load nce mus rau ib qho twg, cov zis ntawm exciter yuav tsum raug txo kom xoom. Cov zis exciter yog xoom, uas yog qhov txwv ntawm lub tshuab hluav taws xob; Lub sijhawm no, qhov tso zis hluav taws xob ntawm lub tshuab hluav taws xob yuav tsis ua rau nws tus kheej ruaj khov, thiab cov khoom siv hluav taws xob no yuav tsis tsim nyog. Qhov kev txwv no tseem hu ua "underexcitation limitation".
Lub tshuab hluav taws xob tsuas tuaj yeem lees txais cov peev txheej thauj khoom tsawg; (Tau kawg, rau lub tshuab hluav taws xob muab, kuj tseem muaj qhov txwv loj ntawm cov khoom tiv thaiv lossis inductive.)
Yog hais tias ib qhov project muaj teeb meem los ntawm cov loads capacitive, koj tuaj yeem xaiv siv lub peev xwm tsawg dua IT fais fab mov ib kilowatt ntawm lub zog, koj tuaj yeem siv cov inductors los them nyiaj, tsis txhob cia lub tshuab hluav taws xob teeb ua haujlwm nyob rau thaj tsam ze ntawm "underexcitation txwv".