Yuav ua li cas harmonics generated nyob rau hauv lub hwj chim systems

Harmonics nyob rau hauv lub hwj chim system yog los ntawm cov khoom siv hluav taws xob, uas yog hais tias, los ntawm kev tsim khoom thiab cov khoom siv hluav taws xob.

1.Harmonic qhov chaw (qhov kev sib haum xeeb ntawm lub hwj chim kawg feem ntau taw qhia rau cov khoom siv hluav taws xob uas txhaj cov khoom sib haum xeeb tam sim no rau hauv daim phiaj pej xeem lossis tsim cov hluav taws xob sib haum xeeb hauv daim phiaj pej xeem).Qee cov khoom siv uas tsis yog-linear yuav tsim kom muaj kev sib haum xeeb thaum lawv ua haujlwm hauv daim phiaj.Piv txwv li, ib-theem rectifiers, hluav taws xob arc rauv, rectifiers, inverters, zaus converters, arc vuam tshuab, induction cua sov khoom, electromechanical khoom nrog sib nqus saturation, thiab lwm yam Harmonics generated los ntawm cov khoom siv hluav taws xob, tshwj xeeb tshaj yog rectifier thyristor khoom, feem ntau siv nyob rau hauv hluav taws xob locomotives, Lu electrolyzers, hloov khoom siv hluav taws xob, thiab lwm yam, thiab muaj ntau yam kev siv.Feem ntau cov khoom siv rectifier thyristor txais kev tswj theem-ua haujlwm, yog li nws yuav tawm ntau qhov sib haum xeeb rau hauv daim phiaj fais fab.Raws li kev txheeb cais cov ntaub ntawv, cov harmonics tsim los ntawm cov khoom siv rectifier account rau 40% ntawm tag nrho cov harmonics, thiab feem ntau yog txheeb xyuas qhov loj tshaj plaws ntawm harmonics.Cov khoom siv hloov pauv zaus feem ntau txais kev tswj hwm theem, yog li cov khoom tsim muaj kev sib haum xeeb muaj ntau txoj hauv kev, feem ntau suav nrog cov lej sib npaug thiab qhov sib npaug sib npaug.Vim lub zog siab ntawm cov khoom siv hloov pauv zaus, cov ntsiab lus sib haum xeeb tsim los kuj yuav nce ntxiv.Raws li cov khoom siv hluav taws xob hauv tsev, vim tias feem ntau ntawm lawv muaj cov khoom siv hluav taws xob tswj thiab kho cov khoom siv, lawv tseem yuav tsim kom muaj kev sib haum xeeb sib sib zog nqus.Nyob rau tib lub sijhawm, kev hloov pauv ntawm qhov tsis sib npaug ntawm qhov tam sim no tseem yuav ua rau muaj kev hloov pauv ntawm lub waveform.Vim muaj cov khoom siv hauv tsev ntau, tag nrho cov khoom tsim muaj kev sib haum xeeb kuj loj heev.Feem ntau ntawm lawv yog hloov cov khoom siv hluav taws xob raws li cov khoom siv hluav taws xob hluav taws xob.

2. Kev sib kis thiab kev xa tawm nws tus kheej kuj yuav tsim kom muaj kev sib haum xeeb.Lub hauv paus ntsiab lus ntawm harmonics yog lub zog transformer.Vim lub saturation ntawm transformer core, lub magnetizing tam sim no yuav qhia ib tug ncov waveform, uas yog, khib harmonics.Qhov siab dua qhov saturation ntawm cov tub ntxhais transformer, qhov loj dua qhov kev sib haum xeeb tam sim no thiab ntau dua cov ntsiab lus harmonic generated.Nws belongs rau cov tub ntxhais hlau ntaus ntawv nrog ferromagnetic saturation yam ntxwv.

3. Lub zog tsim hluav taws xob yog qhov nyuaj rau kev ua tiav qhov zoo tshaj plaws symmetry hauv kev siv tshuab hauv kev sib dhos thiab kev tsim khoom ntawm peb-theem winding ntawm lub tshuab hluav taws xob teeb, thiab cov tub ntxhais hlau ntawm lub tshuab hluav taws xob tsis tuaj yeem ua kom zoo thiab kev ntxhib los mos, thiab lwm yam., ua rau qhov zoo ntawm lub zog generated.tsis siab, ua rau harmonics.

4. Gas tawm hluav taws xob lub teeb qhov chaw.Piv txwv li, fluorescent teeb, high-pressure sodium teeb, hlau halide teeb, thiab lwm yam., vim hais tias ntawm lawv loj nonlinearity, kuj yuav ua rau khib harmonic tam sim no rau hauv daim phiaj fais fab.Nws belongs rau cov khoom siv nrog arc ua qhov nruab nrab ua haujlwm nrog cov yam ntxwv tsis muaj zog.

Txhawm rau txwv cov kev sib haum xeeb hauv lub zog.Feem ntau, tus lej mem tes ntawm lub converter ntaus ntawv yog nce thiab AC lim raug ntsia.Txhim khu kev tswj kev sib haum xeeb.Lub siab thiab tsis tshua muaj hluav taws xob reactive fais fab nyiaj them nyiaj ntaus ntawv tsim los ntawm Hongyan Electric, lub siab thiab qis voltage integrated capacitor them nyiaj ntaus ntawv thiab lub siab thiab tsis tshua muaj hluav taws xob reactive zog dynamic thiab zoo li qub lim cov cuab yeej yog tag nrho cov cuab yeej txhim khu kev qha rau kev txo cov kev puas tsuaj.