Vim qhov kev xav tau ntawm ntau lawm, muaj ntau lub twj tso kua mis loads nyob rau hauv kev lag luam petrochemical, thiab ntau lub twj tso kua mis loads yog nruab nrog zaus converters.Cov neeg siv ntau ntawm cov zaus hloov pauv tau zoo heev ua rau cov ntsiab lus sib haum xeeb ntawm kev faib khoom hauv kev lag luam petrochemical.Tam sim no, feem ntau ntawm cov kev sib txuas rectifier ntawm zaus converters yog daim ntawv thov ntawm 6 pulse rectifier los hloov AC rau DC.Yog li ntawd, cov harmonics tsim yog feem ntau 5th, 7th thiab 11th harmonics.
1. Kev txheeb xyuas cov yam ntxwv ntawm kev thauj khoom hauv kev lag luam roj
Ntau tshaj 85% ntawm lub hwj chim load nyob rau hauv cov roj kev lag luam daim phiaj yog inductive load, xws li ntau yam roj twj, motors thiab hais txog.Nyob rau hauv xyoo tas los no, raws li cov roj av tau muab cov kev xav tau siab dua rau kev txuag hluav taws xob, ntau chav nyob tau txais cov khoom siv txuag hluav taws xob ntau.Vim tias nws cov txiaj ntsig zoo txuag hluav taws xob, kev hloov kho yooj yim, kev saib xyuas yooj yim thiab kev sib txuas, cov zaus hloov pauv tau siv dav hauv kev siv roj.Lub twj tso kua mis, twj tso kua mis, lub twj tso kua mis step-down thiab sib tov twj tso kua mis nyob rau hauv lub chaw tsim khoom roj yog tsav los ntawm lub zaus converter, tab sis lub zaus converter yuav tsim ib tug loj tus naj npawb ntawm harmonics los cuam tshuam cov load thiab nws cov khoom nyob ib sab, thiab cov harmonics kuj yuav. cuam tshuam rau pej xeem daim phiaj hluav taws xob los ntawm cov kab hluav taws xob nkag.
2. Kev puas tsuaj ntawm kev sib haum xeeb rau cov roj av hluav taws xob
1) Harmonics cuam tshuam rau kev ua haujlwm ruaj khov ntawm daim phiaj hluav taws xob oilfield thiab txo cov khoom siv hluav taws xob zoo ntawm cov roj hluav taws xob hluav taws xob.
2) Harmonics nce lub zog poob ntawm lub capacitor, ua rau lub neej ua haujlwm luv ntawm lub hwj chim capacitor, thiab thaum muaj kev sib haum xeeb loj, nws tseem yuav ua rau lub capacitor bulge, tawg lossis tawg.Harmonics kuj tuaj yeem ua rau lub zog poob ntawm lub transformer.
3) Harmonics yuav ua rau lub zog poob ntawm lub rotating lub cev muaj zog nce, ua rau overheating, ua rau cov neeg kho tshuab kev co, suab nrov thiab harmonic overvoltage, uas yuav ua rau lub neej ntawm cov khoom siv, thiab txawm tias muaj kev puas tsuaj loj heev;Harmonics yuav ua rau relay tiv thaiv tsis raug lossis tsis lees txais kev txiav txim;Lub harmonics nyob rau hauv lub hwj chim system yog txuas mus rau lub zog tsis muaj zog tam sim no los ntawm electromagnetic induction, electrostatic induction thiab conduction, uas yuav ua rau cuam tshuam rau lub zog tam sim no tsis muaj zog.
Nrog rau kev siv dav hauv kev hloov pauv ntau zaus hauv cov roj av dej txhaj tshuaj, nws tsis tsuas yog daws cov teeb meem ntawm kev txhaj tshuaj ntawm cov twj tso kua mis, kev siv hluav taws xob siab thiab kev ua haujlwm qis, tab sis kuj coj qhov nce ntawm cov ntsiab lus sib haum xeeb hauv daim phiaj hluav taws xob.Lub hav zoov ntawm ib tug loj tus naj npawb ntawm harmonics hem qhov kev cia siab thiab kev ruaj ntseg ntawm lub hwj chim mov system.Txhawm rau tshem tawm cov kev puas tsuaj los ntawm kev sib haum xeeb, kev siv ntawm kev tsim khoom, txhim kho cov khoom siv hluav taws xob zoo ntawm daim phiaj hluav taws xob, kom ntseeg tau tias cov khoom siv ib txwm muaj.
Noker Electric (/about-us/) active harmonic limnrog 3-theem IGBT niaj hnub siv tshuab, yog ib qho khoom siv tswj kev sib raug zoo.Ib qho kev txhawb nqa, tiv tauj peb dawb.Peb yuav muab kev daws teeb meem rau koj.
Post lub sij hawm: Jun-30-2023