Teb tshuab ntau lub cev muaj zog tsis ua hauj lwm synchronous nres tswj zog
Nyob rau hauv txoj hlua khi paj nruag, txoj haujlwm tseem ceeb ntawm cov txheej txheem rov qab yog tsim kom muaj qee qhov kev txhawm rau ntawm cov nplaum kom tus swb muaj peev xwm ncav cuag ib qho kev sib tw thiab ua rau hauv ib qho kev sib tw, uas yooj yim rau kev khaws thiab tuav, thiab yog tsim rau lub tshuab spinning. Pub Noj. Tam sim no, txheej txheem roving tshuab automation system qauv yog mas muab faib rau peb qhov kev lag luam loj: ua ntej, siv tswj computer, board, frequency converter; ob, kov npo, PLC, zaus sib txuas; thib peb, kov tshuaj ntsuam, ib leeg-nti module, zaus hloov khoom siv. Tiam sis tag nrho peb txoj kev daws teeb meem yuav tsum fim ib qho teeb meem: tias lub zog tsis ua hauj lwm yuav tsum tau siv ntau lub cav kom txhob muaj teeb meem. Tam sim no, nws nquag siv tias qhov sib hloov khoom siv zaus nkag mus rau hauv lub xeev nres thiab ua kom muaj zog rov los xyuas kom meej tias lub cav nres synchronously.
2 sab nraud busbar capacitor zog cia cov khoom siv hluav taws xob
2.1 txoj cai tsim
Raws li qhov kev dav dav dav dav, tus DC daim pib siv lub npav siv los lim cov AC component ntawm lub rectifier thiab tswj kom cov neeg siv hluav taws xob cov pa hluav taws xob. Rau ntau lub cav ywj pheej muaj xws li cov tsav tsheb rov tom qab, cov neeg tsav tsheb busbar muaj peev xwm siv cov khoom siv rau kev lag luam uas siv hluav taws xob los ntawm kev siv hluav taws xob hluav taws xob thaum lub caij fais fab yuam kev. Vim hais tias qhov peev txheej hauv lub npav yog feem ntau tsuas yog ua kom tau raws li cov kev tswj fais fab thiab kev siv hluav taws xob, nws tsis yooj yim kom tau raws li qhov xav tau ntawm qhov fais fab tuag. Ib qho kev sib npaug ntawm cov npav loj zog uas muaj peev xwm ua kom khiav tau lub zog khiav hluav taws xob. Tus sab nraud capacitor yuav ua rau muaj kev pib loj heev tam sim no rau rectifier ntawm inverter. Txoj kev tiv thaiv mos muag pib tsim yog pom los ntawm daim phiaj rov qab PLC. Lub hauv paus ntsiab lus zoo li lub npav sab nraud uas txuas nrog kev tiv thaiv pib tiv thaiv ntawm lub inverter. Rau lub synchronous tsim ntawm busbar capacitor zog cia, Delta B series inverters tau hloov kho cov software rau cov yam ntxwv ntawm daim ntawv thov ntawm cov txheej txheem roving.
3 Npaj sab nraud
3.1 Lub hom phiaj ntawm kev suav
(1) Caw tus nqi ntawm tus sab nraud uas yuav tsum tau xyuas kom paub tseeb tias lub cav ntim khoom rov qab tuaj yeem tso tseg thaum lub zog poob lawm.
(2) Tsim ib lub voj voog sab nraud ntawm sab nraud los xyuas kom meej tias qhov ua rau muaj zog-txo thaum lub inverter capacitance nce.
3.2 Cov kauj ruam kev ua haujlwm
(1) Kev txheeb ntawm qhov chaw txawb hluav taws xob ntawm qhov chaw nres nkoj
4 Pib tua tiv thaiv resistor tsim
4.1 Kev Pib Cov Txheej Txheem
Nyob rau hauv tej qhov voltage-type inverter, muaj lub peev xwm loj tshaj plaws. Thaum lub hwj chim-yog instantaneous, nws yog sib npaug ntawm ib lub teeb liab ntawm ob hnub ntawm lub capacitor. Yog hais tias lub capacitor ncaj qha mus ntxiv rau ob hnub ntawm lub capacitor, lub charging tam sim no ntawm lub capacitor loj loj, uas yuav ua mob rau lub neej ntawm lub capacitor. Rau lub hom phiaj no, feem ntau ntawm cov inverters tau ntxiv ib lub voj voog muag pib tom qab khi txoj cai. Raws li lub tswv yim no, ntxiv rau lub peev xwm ntawm peb lub inverters hauv txoj kab rov qab, muaj peev xwm loj txaus mus rau DC bus, yog li tsim nyog yuav tsim ib lub voj voog pib mos kom paub tseeb tias lub neej ntawm lub inverter . Lub tswv yim tseem ceeb raws li nram no: Tus sab nraud capacitor nyob rau ntawm DC lub tsheb npav ntawm qhov inverter muaj nyob hauv daim duab 2. Qhov kev tswj kawg ntawm tus contactor yog tswj los ntawm PLC. Thaum lub zog qhib, PLC qeeb rau ib lub sijhawm. Tom qab lub capacitor them los ntawm tus R resistor lawm, tus contactor kaw lawm. Bypass resistor R.
4.2 Pib pib hluav taws xob parameter xam
5 Xaus
Inverter tsav rov qab tshuab ntau lub cev muaj zog tsis ua hauj lwm nrog lub tshuab synchronous yog ib qho teeb meem tshwj xeeb hauv cov kev lag luam textile. Thaum lub sijhawm tsis muaj hluav taws xob, qhov system tau tag nrho cov khoom siv sab nraud. Feem ntau, tus choj inverter nres tag lawm, thiab pua pua ntawm cov kiv puag ncig tawg lawm, uas yuav tsum tau siv sij hawm ntev ntev kom rov pib dua. Qhov sab nraud ntawm lub busbar uas siv lub tshuab khiav lag luam uas sib tham tau hauv daim ntawv no tau zoo heev, thiab qhov kev tshawb fawb tau dhau los ntawm kev tshawb fawb thiab kev txhim kho thiab ua tau zoo hauv cov ntawv siv.
