Yuav ua li cas los daws qhov harmonic ntawm switching fais fab mov
Nyob rau hauv cov khoom siv hluav taws xob niaj hnub no, kev hloov hluav taws xob hloov hluav taws xob yog ib hom kev siv hluav taws xob ntau, uas muaj cov yam ntxwv ntawm qhov me me thiab kev ua haujlwm siab. Txawm li cas los xij, kev hloov hluav taws xob tseem yuav tsim kev sib haum xeeb, uas yuav cuam tshuam rau qhov zoo ntawm cov khoom siv hluav taws xob thiab kev ruaj ntseg ntawm daim phiaj hluav taws xob mus rau qee qhov, thiab tseem ua rau muaj kev puas tsuaj rau cov hluav taws xob thiab cov khoom siv. Yog li ntawd, nws yog ib qho tseem ceeb los daws qhov teeb meem ntawm kev sib hloov ntawm kev hloov hluav taws xob.
Ua rau ntawm harmonics nyob rau hauv switching fais fab mov
Harmonic yoj yog hais txog ib hom hluav taws xob waveform uas muaj zaus ntau dua li cov nthwv dej hauv paus, thiab nws qhov chaw feem ntau yog los ntawm cov khoom xws li cov khoom tsis muaj kab, tsis yog sinusoidal voltage thiab electromagnetic cuam tshuam. Lub hauv paus ntsiab lus ua haujlwm ntawm kev hloov hluav taws xob txiav txim siab tias nws yooj yim los tsim kev sib haum xeeb.
1. luv-circuit nyhuv ntawm capacitor lim circuit
Hauv kev hloov fais fab mov, lub capacitor lim Circuit Court feem ntau txo qhov hluav taws xob ntawm lub zog ntawm cov khoom siv hluav taws xob, tab sis ntawm qhov muaj zaus, lub capacitor kuj yog luv luv. Txawm li cas los xij, luv luv Circuit Court yuav ua rau muaj kev sib haum xeeb tam sim no mus rau hauv lub hwj chim mov, tsim oscillation nyob rau hauv tus neeg xyuas pib, thiab ua rau lub suab nrov thiab thermal nyhuv.
2. Resonance nyhuv ntawm inductance lim circuit
Nyob rau hauv lub switching fais fab mov, lub inductance lim Circuit Court yog tsuas yog siv los tiv thaiv lub high-frequency pulsation ntawm lub hwj huam mov tso zis. Thaum lub load tam sim no tsawg heev, lub inductance nyob rau hauv lub resonant lub xeev, uas yuav tsim high-frequency harmonic tam sim no. Lub generated high-frequency harmonic tam sim no yuav resonate nyob rau hauv lub hwj chim mov capacitor thiab kab inductance, thiab tsim high-frequency oscillation thaum lub tam sim no ntws.
3. Resonance cuam tshuam ntawm inductance tawm tswv yim circuit
Resonant tawm tswv yim Circuit Court yog ib qho tseem ceeb ntawm kev ua haujlwm ntawm kev hloov hluav taws xob. Cov tswv yim tswj xyuas yog siv los saib xyuas cov khoom thauj thiab lub zog tsis tu ncua, txhawm rau kho cov khoom siv hluav taws xob hauv lub sijhawm thiab txhim kho kev ua haujlwm ntawm tag nrho cov khoom siv hluav taws xob. Txawm li cas los xij, inductive tawm tswv yim Circuit Court yuav txo qhov tso zis voltage ntawm lub hwj chim mov los ntawm lub resonant Circuit Court, uas yuav ua rau kom lub tsim ntawm harmonic tam sim no.
4. Kev cuam tshuam ntawm kev ua haujlwm zaus
Qhov siab dua qhov ua haujlwm zaus ntawm kev hloov hluav taws xob, qhov siab dua qhov kev sib haum xeeb thiab cov nplua nuj ntawm qhov sib haum xeeb tam sim no. Lub high-frequency tam sim no yuav tsim ib tug kuj loj electromagnetic nthwv dej ntawm lub kauj, uas kuj yuav ua rau lub phenomenon uas cov khoom siv hluav taws xob nws tus kheej thiab electromagnetic nthwv dej yog tag nrho ntawm kev sib cuam tshuam nyob rau hauv cov huab cua.
Kev puas tsuaj ntawm kev hloov fais fab mov harmonics
Harmonic ntawm kev hloov hluav taws xob yuav ua rau muaj kev puas tsuaj rau cov khoom siv thiab lub cev, thiab qhov tshwj xeeb raug mob yog raws li hauv qab no:
1. Kev puas tsuaj rau lub zog hloov hluav taws xob nws tus kheej.
Lub harmonic generated los ntawm kev hloov fais fab mov ntawm lub siab zaus yuav ua rau kom cov cua sov sab hauv ntawm switching tube thiab ua rau muaj kev pheej hmoo ntawm nws kev puas tsuaj.
2. Kev puas tsuaj rau lub nra
Cov zis harmonics ntawm switching fais fab mov yuav cuam tshuam lub load, uas yog ib qho yooj yim rau kev puas tsuaj rau lub Cheebtsam nyob rau hauv Circuit Court, tshwj xeeb tshaj yog rau precision instruments thiab cov khoom kho mob.
3. Kev puas tsuaj rau daim phiaj hluav taws xob
Tom qab lub zog hloov hluav taws xob tso tawm cov kev sib haum xeeb, nws yuav kis tau los ntawm daim phiaj hluav taws xob thiab ua rau muaj kev sib haum xeeb tam sim no ntawm daim phiaj hluav taws xob, uas yuav ua rau muaj teeb meem xws li overload ntawm daim phiaj hluav taws xob, kub nce ntawm cov cables, kev puas tsuaj ntawm lub zog transformer tub ntxhais thiab yog li ntawd, yog li cuam tshuam rau stability.
Kev daws rau harmonics ntawm switching fais fab mov
Yuav kom daws tau qhov teeb meem ntawm kev sib raug zoo ntawm kev hloov hluav taws xob, cov kev daws teeb meem hauv qab no feem ntau yog siv:
1. Txais kev sib haum xeeb tiv thaiv Circuit Court.
Kev siv cov hluav taws xob hluav taws xob tiv thaiv hluav taws xob tuaj yeem txwv cov tiam ntawm cov zaus tam sim no thiab txo qhov cuam tshuam ntawm kev sib haum xeeb tam sim no ntawm kev hloov hluav taws xob.
2. Txais cov lim tshiab
Cov lim tshiab muaj cov kev daws teeb meem zoo rau cov teeb meem kev sib raug zoo ntawm kev hloov hluav taws xob, xws li siv cov khoom siv hluav taws xob uas tsis yog inductive topology, multi-capacitor-multi-parameter lim thiab lwm yam.
3. Txhim kho qhov tsim ntawm kev hloov hluav taws xob.
Hauv kev tsim cov khoom siv hluav taws xob hloov pauv, peb yuav tsum ua kom zoo dua nws cov khoom siv hluav taws xob, cov ntaub ntawv txuas thiab cov ntaub ntawv sib xyaw, thiaj li txo qis nws lub zog sab hauv thiab lub zog degradation thiab txo cov tiam ntawm kev sib haum xeeb.
4. Nruab cov khoom siv txuag hluav taws xob lossis ua kom cov zis hluav taws xob nce ntxiv.
Los ntawm kev txhim kho cov khoom siv txuag hluav taws xob lossis ua kom cov zis hluav taws xob ntau ntxiv ntawm kev hloov hluav taws xob, kev tsim thiab kev cuam tshuam ntawm kev sib haum xeeb tam sim no tuaj yeem txo qis.
