Los ntawm lub tswv yim ntawm lub cev muaj zog, DC lub cev muaj zog yog DC lub cev muaj zog uas hloov DC lub zog hluav taws xob mus rau hauv lub tshuab hluav taws xob, lossis lub tshuab hluav taws xob DC uas hloov cov tshuab hluav taws xob mus rau DC lub zog hluav taws xob;Lub tshuab hluav taws xob tig uas nws cov zis lossis cov khoom tawm yog DC lub zog hluav taws xob hu ua DC lub cev muaj zog, uas yog lub zog A lub cev muaj zog uas paub txog kev sib hloov ntawm DC hluav taws xob hluav taws xob thiab lub zog siv tshuab.Thaum nws ua haujlwm raws li lub cev muaj zog, nws yog DC lub cev muaj zog, uas hloov hluav taws xob hluav taws xob rau hauv lub zog siv tshuab;Thaum nws ua haujlwm raws li lub tshuab hluav taws xob, nws yog lub tshuab hluav taws xob DC, uas hloov cov tshuab hluav taws xob rau hauv DC lub zog hluav taws xob.

Rau rotating motors, harmonic tam sim no los yog harmonic voltages yuav ua rau poob ntxiv nyob rau hauv lub stator windings, rotor circuits thiab hlau cores, uas ua rau ib tug txo nyob rau hauv tag nrho cov zog conversion efficiency ntawm lub cev muaj zog.Harmonic tam sim no tuaj yeem ua kom tooj liab noj ntawm lub cev muaj zog, yog li nyob rau hauv kev sib haum xeeb hnyav, lub cev muaj zog yuav tsim kom muaj cua sov hauv zos, ua kom muaj kev vibration thiab suab nrov, thiab ua kom kub nce, ua rau kom muaj kev laus ntawm cov txheej txheem rwb thaiv tsev thiab txo cov khoom siv lub neej.Qee tus kiv cua nug, AC motors yuav muaj kev sib haum xeeb, seb DC motors puas muaj qhov teeb meem no?

Qhov loj thiab kev taw qhia ntawm qhov hloov pauv tam sim no yuav hloov pauv raws sijhawm, thiab qhov nruab nrab ntawm tus nqi khiav hauv ib lub voj voog yog xoom, thiab lub waveform feem ntau yog sinusoidal, thaum lub sij hawm tam sim no tsis hloov ib ntus.Hloov tam sim no yog lub hauv paus sib nqus, uas yog tsim los ntawm mechanically.Txhua qhov hloov pauv tam sim no yuav tsum muaj cov khoom siv hluav taws xob, thiab muaj cov khoom siv hlau nplaum.Direct tam sim no yog tshuaj-raws li, txawm photovoltaic los yog lead-acid, feem ntau converts chemical zog rau hauv hluav taws xob.

Kev hloov pauv ntawm alternating tam sim no mus rau tam sim no ncaj qha yog los ntawm rectification thiab filtering kom tau txais pulsating direct tam sim no.Cov tam sim no ncaj qha hloov mus rau hauv alternating tam sim no los ntawm oscillation thiab inversion, thiab ntau yam sine wave alternating tam sim no tau txais.

Lub ntsiab yog vim li cas rau tiam ntawm harmonics muaj xws li qhov distortion ntawm lub hauv paus tam sim no thiab cov tiam ntawm harmonics vim lub sinusoidal voltage tau thov mus rau lub nonlinear load.Lub ntsiab nonlinear loads yog UPS, hloov fais fab mov, rectifier, zaus converter, inverter, thiab lwm yam.Yog vim li cas rau kev sib haum xeeb ntawm AC rectifier thiab DC fais fab khoom siv yog tias cov khoom siv rectifier muaj lub valve voltage.Thaum nws tsawg dua li lub valve voltage, qhov tam sim no yog xoom.

Txhawm rau muab cov khoom siv hluav taws xob ruaj khov rau hom hluav taws xob no xws li lim hluav taws xob ntxiv rau lub tshuab hluav taws xob ntxiv rau lub valve voltage thiab txhawb lub zog ntawm Harmonics.Yuav kom tswj tau qhov voltage thiab tam sim no ntawm DC cov khoom siv hluav taws xob, thyristor yog siv rau hauv cov khoom siv rectifier, uas ua rau cov khoom sib haum xeeb ntawm cov khoom siv no hnyav dua, thiab qhov kev txiav txim siab sib haum xeeb kuj tsawg.

Los ntawm Jessica