Diesel Generator Teeb yog Matched nrog UPS

Kab lus no tshuaj xyuas thiab piav qhia txog qhov cuam tshuam ntawm UPS cov khoom siv hluav taws xob thiab cov lim dej tawm ntawm lub lub tshuab hluav taws xob kom paub meej qhov laj thawj ntawm qhov teeb meem, thiab nrhiav kev daws teeb meem.

1. Kev sib koom tes ntawm lub tshuab hluav taws xob diesel teeb thiab UPS.

Cov neeg tsim khoom thiab cov neeg siv cov khoom siv hluav taws xob tsis cuam tshuam tau ntev tau pom cov teeb meem kev sib koom tes ntawm lub tshuab hluav taws xob teeb thiab UPS, tshwj xeeb tshaj yog cov kev sib haum xeeb tam sim no tsim los ntawm cov khoom siv hluav taws xob yog tsim los ntawm cov khoom siv hluav taws xob xws li voltage regulators ntawm generator teeb thiab synchronization circuits ntawm UPS.Cov teebmeem tsis zoo ntawm qhov no yog qhov pom tseeb heev.Yog li ntawd, UPS system engineers tsim cov lim tswv yim thiab siv rau UPS, ua tiav kev tswj xyuas cov kev sib raug zoo tam sim no hauv UPS daim ntawv thov.Cov lim dej no ua lub luag haujlwm tseem ceeb hauv kev sib raug zoo ntawm UPS thiab cov khoom siv hluav taws xob.

Zoo tag nrho cov lim tswv yim siv cov capacitors thiab inductors los nqus cov kev puas tsuaj tam sim no ntawm UPS cov tswv yim.Tus tsim ntawm lub lim tswv yim yuav siv sij hawm rau hauv tus account qhov feem pua ​​​​ntawm qhov siab tshaj plaws ntawm tag nrho cov kev sib haum xeeb distortion muaj nyob rau hauv UPS Circuit Court thiab nyob rau hauv tag nrho cov load.Lwm qhov txiaj ntsig ntawm cov ntxaij lim dej feem ntau yog txhawm rau txhim kho cov khoom siv fais fab ntawm UPS loaded.Txawm li cas los xij, lwm qhov laj thawj ntawm daim ntawv thov ntawm cov khoom lim tawm yog txo qhov kev ua haujlwm tag nrho ntawm UPS.Cov lim dej feem ntau siv li 1% ntawm UPS fais fab.Tus tsim ntawm cov lim tswv yim ib txwm nrhiav kev sib npaug ntawm cov txiaj ntsig zoo thiab tsis zoo.

Txhawm rau txhim kho kev ua haujlwm ntawm UPS system kom ntau li ntau tau, UPS engineers tau tsis ntev los no tau txhim kho kev siv hluav taws xob ntawm cov khoom siv lim.Kev txhim kho ntawm kev ua haujlwm lim dej feem ntau yog nyob ntawm daim ntawv thov ntawm IGBT (Insulated Gate Transistor) thev naus laus zis rau UPS tsim.Kev ua haujlwm siab ntawm IGBT inverter tau coj mus rau kev tsim kho dua tshiab ntawm UPS.Cov tswv yim lim tuaj yeem nqus tau qee qhov kev sib haum xeeb tam sim no thaum nqus ib feem me me ntawm lub zog nquag.Nyob rau hauv luv luv, qhov piv ntawm inductive yam rau capacitive yam nyob rau hauv lub lim yog txo, lub ntim ntawm lub UPS yog txo, thiab cov efficiency yog zoo dua.Tej yam hauv UPS teb zoo li tau daws, tab sis kev sib raug zoo ntawm qhov teeb meem tshiab nrog lub tshuab hluav taws xob tau tshwm sim dua, hloov qhov teeb meem qub.

2. Resonance teeb meem.

Qhov teeb meem ntawm capacitor self-excitation tej zaum yuav aggravated los yog npog los ntawm lwm yam hluav taws xob tej yam kev mob, xws li series resonance.Thaum tus nqi ohmic ntawm lub tshuab hluav taws xob inductive reactance thiab tus nqi ohmic ntawm cov khoom siv lim lub capacitive reactance nyob ze rau ib leeg, thiab tus nqi ntawm lub cev muaj zog me me, oscillation yuav tshwm sim, thiab qhov hluav taws xob yuav dhau qhov ntsuas tus nqi ntawm lub zog. qhov system.Lub tshuab tsim tshiab UPS yog qhov tseem ceeb 100% capacitive input impedance.Ib qho 500kVA UPS tej zaum yuav muaj lub peev xwm ntawm 150kvar thiab lub zog muaj zog ze rau xoom.Shunt inductors, series chokes, thiab input isolation transformers yog cov khoom qub ntawm UPS, thiab cov khoom no yog tag nrho cov inductive.Qhov tseeb, lawv thiab lub peev xwm ntawm lub lim ua ke ua rau UPS coj tus cwj pwm zoo li tag nrho, thiab tej zaum yuav muaj qee qhov oscillations hauv UPS.Ua ke nrog cov yam ntxwv muaj peev xwm ntawm cov kab hluav taws xob txuas nrog UPS, qhov nyuaj ntawm tag nrho cov kab ke tau nce siab heev, dhau ntawm qhov kev soj ntsuam ntawm cov engineers zoo tib yam.

3. Diesel generator teeb thiab thauj khoom.

Diesel generator sets cia siab rau lub voltage regulator los tswj cov zis voltage.Lub voltage regulator ntes peb-theem tso zis voltage thiab sib piv nws nruab nrab tus nqi nrog rau qhov yuav tsum tau voltage tus nqi.Lub regulator tau txais lub zog los ntawm lub koom haum pab fais fab hauv lub tshuab hluav taws xob, feem ntau yog lub tshuab hluav taws xob me me coaxial nrog lub tshuab hluav taws xob loj, thiab xa DC lub zog mus rau qhov sib nqus teb excitation coil ntawm lub tshuab hluav taws xob rotor.Lub coil tam sim no nce los yog ntog los tswj lub rotating magnetic teb ntawm lub generator stator kauj , los yog qhov loj ntawm electromotive quab yuam EMF.Qhov sib nqus flux ntawm stator coil txiav txim siab qhov tso zis voltage ntawm lub tshuab hluav taws xob.

Sab hauv tsis kam ntawm stator kauj ntawm lub tshuab hluav taws xob diesel teeb yog sawv cev los ntawm Z, suav nrog qhov inductive thiab resistive;Electromotive quab yuam ntawm lub tshuab hluav taws xob tswj los ntawm rotor excitation coil yog sawv cev los ntawm E los ntawm AC voltage qhov chaw.Piv txwv tias cov load yog purely inductive, tam sim no kuv lags qhov voltage U los ntawm raws nraim 90 ° hluav taws xob theem kaum hauv daim duab vector.Yog hais tias lub load yog purely resistive, lub vectors ntawm U thiab kuv yuav coincide los yog nyob rau hauv theem.Qhov tseeb, feem ntau cov loads yog nruab nrab ntawm kev tiv thaiv thiab ntshiab inductive.Qhov hluav taws xob poob los ntawm qhov tam sim no dhau los ntawm stator kauj yog sawv cev los ntawm qhov voltage vector I × Z.Nws yog qhov tseeb ntawm ob qhov me me voltage vectors, qhov kev tiv thaiv hluav taws xob poob hauv theem nrog kuv thiab qhov inductor voltage poob 90 ° ua ntej.Nyob rau hauv cov ntaub ntawv no, nws tshwm sim nyob rau hauv theem nrog U. Vim hais tias lub electromotive quab yuam yuav tsum sib npaug zos rau cov sum ntawm lub voltage poob ntawm lub generator lub internal kuj thiab cov zis voltage, uas yog, lub vector sum ntawm vector E = U thiab Ib × Z.Lub voltage regulator tuaj yeem tswj tau qhov voltage U los ntawm kev hloov E.

Tam sim no xav txog dab tsi tshwm sim rau cov xwm txheej sab hauv ntawm lub tshuab hluav taws xob thaum lub tshuab hluav taws xob muaj peev xwm siv tau los ntawm kev siv cov khoom siv inductive nkaus xwb.Lub sijhawm tam sim no tsuas yog qhov sib txawv ntawm qhov inductive load.Tam sim no kuv tam sim no ua tus voltage vector U, thiab lub internal resistance voltage poob vector I × Z kuj yog nyob rau hauv opposite theem.Tom qab ntawd cov vector sum ntawm U thiab I × Z yog tsawg dua U.

Txij li thaum tib lub zog electromotive E raws li nyob rau hauv lub inductive load ua ib tug ntau dua generator tso zis voltage U nyob rau hauv lub capacitive load, lub voltage regulator yuav tsum ho txo ​​lub rotating magnetic teb.Qhov tseeb, qhov voltage regulator yuav tsis muaj ntau yam txaus los tswj tag nrho cov zis voltage.Lub rotors ntawm tag nrho cov generators yog tsis tu ncua zoo siab nyob rau hauv ib qho kev taw qhia thiab muaj ib tug mus tas li magnetic teb.Txawm hais tias qhov hluav taws xob tswj hluav taws xob kaw tag nrho, lub rotor tseem muaj cov hlau nplaum txaus kom them tus nqi hluav taws xob thiab tsim hluav taws xob.Qhov tshwm sim no hu ua "self-excitation".Qhov tshwm sim ntawm tus kheej excitation yog overvoltage los yog kaw ntawm lub voltage regulator, thiab lub tshuab hluav taws xob saib xyuas qhov system txiav txim siab nws yog ib tug tsis ua hauj lwm ntawm lub voltage regulator (ie, "poob excitation").Ob qho xwm txheej no yuav ua rau lub tshuab hluav taws xob nres.Lub load txuas nrog cov zis ntawm lub tshuab hluav taws xob tuaj yeem ua haujlwm ywj pheej lossis sib npaug, nyob ntawm lub sijhawm thiab kev teeb tsa ntawm lub tshuab hloov pauv tsis siv neeg.Hauv qee qhov kev siv, UPS system yog thawj lub thauj khoom txuas nrog lub tshuab hluav taws xob thaum lub zog tsis ua haujlwm.Hauv lwm qhov xwm txheej, UPS thiab cov khoom siv hluav taws xob txuas nrog tib lub sijhawm.Cov neeg kho tshuab load feem ntau muaj qhov pib contactor, thiab nws yuav siv sij hawm qee lub sij hawm rov qab kaw tom qab lub hwj chim tsis ua hauj lwm.Nws muaj qhov ncua sij hawm rau kev them nyiaj inductive lub cev muaj zog ntawm UPS input lim capacitor.UPS nws tus kheej muaj lub sijhawm hu ua "soft start", uas hloov cov load ntawm lub roj teeb mus rau lub tshuab hluav taws xob kom nce nws cov khoom siv hluav taws xob.Txawm li cas los xij, UPS cov ntxaij lim dej tawm tsis koom nrog cov txheej txheem pib muag muag.Lawv txuas nrog lub tswv yim kawg ntawm UPS ua ib feem ntawm UPS.Yog li ntawd, qee zaum, lub ntsiab load thawj zaug txuas nrog cov zis ntawm lub tshuab hluav taws xob thaum lub hwj chim tsis ua haujlwm yog lub lim tawm ntawm UPS.Lawv yog cov capacitive heev (qee zaum cov capacitive nkaus xwb).

Kev daws rau qhov teeb meem no yog pom tseeb los siv lub zog kho kom raug.Muaj ntau txoj hauv kev kom ua tiav qhov no, kwv yees li hauv qab no:

1. Txhim kho lub txee hloov pauv tsis siv neeg los ua kom lub cev muaj zog txuas ua ntej UPS.Qee lub txee hloov pauv yuav tsis tuaj yeem siv txoj kev no.Tsis tas li ntawd, thaum lub sij hawm tu, cog engineers yuav tsum cais debug UPS thiab generators.

2. Ntxiv ib qho reactive reactance mus tas li los them cov nqi thauj khoom capacitive, feem ntau yog siv lub tshuab hluav taws xob sib txuas winding, txuas nrog EG lossis lub tshuab hluav taws xob tso tawm cov khoom sib txuas.Qhov no yooj yim heev kom ua tiav, thiab tus nqi qis.Tab sis tsis muaj teeb meem nyob rau hauv siab load los yog tsawg load, lub reactor yog ib txwm absorbing tam sim no thiab cuam tshuam lub load hwj chim yam.Thiab tsis hais tus naj npawb ntawm UPS, tus naj npawb ntawm cov reactors yeej ib txwm kho.

3. Nruab ib lub inductive reactor nyob rau hauv txhua lub UPS kom tsuas yog them rau lub capacitive reactance ntawm UPS.Nyob rau hauv rooj plaub uas tsis muaj load, tus contactor (optional) tswj cov input ntawm lub reactor.Cov qauv ntawm reactor no yog qhov tseeb dua, tab sis tus lej loj thiab tus nqi ntawm kev teeb tsa thiab kev tswj hwm yog siab.

4. Nruab ib lub contactor nyob rau hauv pem hauv ntej ntawm lub lim capacitor thiab disconnect nws thaum lub load yog tsawg.Txij li thaum lub sij hawm ntawm lub contactor yuav tsum yog qhov tseeb thiab cov kev tswj yog qhov nyuaj, nws tsuas yog ntsia tau rau hauv lub Hoobkas.

Txoj kev twg yog qhov zoo tshaj plaws nyob ntawm qhov xwm txheej ntawm qhov chaw thiab kev ua haujlwm ntawm cov khoom siv.

Yog tias koj xav paub ntau ntxiv txog cov tshuab hluav taws xob diesel, txais tos mus tham Dingbo Power los ntawm email dingbo@dieselgeneratortech.com, thiab peb yuav nyob ntawm koj qhov kev pabcuam txhua lub sijhawm.