Lub lim dej nquag lim dej muaj txiaj ntsig zoo ua rau muaj kev tswj hwm
May 20, 2025| Nrog kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, nrog rau kev txhim kho cov khoom siv hluav taws xob tsim khoom thiab cov neeg muaj sia nyob hauv lub zog sib txawv ntawm cov kab ke hauv lub hwj chim. Qhov no tsis tsuas yog nce lub zog ntawm lub zog ntawm lub zog yooj yim tab sis kuj cuam tshuam nrog kev ua haujlwm ntawm lub zog hluav taws xob thiab ua tsis tau cov khoom siv rau cov khoom siv hluav taws xob, ua rau cov khoom siv tshuab hluav taws xob, ua rau cov khoom siv tshuab hluav taws xob, ua rau cov haujlwm siv tshuab hluav taws xob, ua rau muaj kev nyab xeeb rau kev ua haujlwm zoo ntawm lub hwj chim.
Girmonic qhov chaw:
Harmonics nyob rau hauv lub zog hluav taws xob pib los ntawm cov khoom siv hluav taws xob, uas yog, los ntawm cov neeg siv hluav taws xob. Txij li thaum lub tshuab sib nqus tau tsim los ntawm lub rotor ntawm lub tshuab hluav taws xob tsis tuaj yeem yog cov sine yoj, lub voltage waveform tsim los ntawm lub tshuab hluav taws xob tsis tuaj yeem yog ib qho distortion. Tam sim no, cov tshuab hluav taws xob siv hauv Suav teb tau muab faib ua ob hom tseem ceeb: shunt tshuab thiab series machine. Cov tshuab tshuab shunt feem ntau yog siv nyob rau hauv cov tshuab raj General Generator, thaum cov tshuab series feem ntau yog siv nyob rau hauv hydro turbine tshuab generators.
Yog li ntawd, lub ntsiab lus sib cav cuam tshuam rau qhov zoo ntawm grid voltage waveform yog cov khoom siv hluav taws xob tsis-linear. Uas yog hais, cov khoom siv hluav taws xob tsis-linear yog qhov tseem ceeb ntawm kev sib haum xeeb. Cov khoom siv tsis-linear feem ntau suav nrog cov hauv qab no plaub yam:
Khoom Cua Sov ARC Cua Sov: xws li arc rauv, vuam tshuab, thiab lwm yam.
Cov cuab yeej siv hluav taws xob rau cov SECTICATION: Xws li hluav taws xob locomotives, electrolysis, electrolencating, thiab lwm yam.
● Cov ntawv kho kom haum thiab tom qab ntawd inverter cov khoom siv hluav taws xob: xws li ntau zaus zaus nrawm, muaj feem ntau zaus cua txias, thiab lwm yam.
● Hloov cov khoom siv hluav taws xob: xws li cov hluav taws xob hluav taws xob, cov TV, khoos phis tawj, khoos phis tawj, hluav taws xob rectifiers, thiab lwm yam.
Cov cuab yeej hluav taws xob no yog txhua yam khoom siv hluav taws xob tsis-linear, tab sis lawv tsim cov kev sib txawv.
Txhawm rau muab cov teeb meem uas nquag muaj zog, hauv lub zog hluav taws xob ua haujlwm hauv lub hwj chim rau qhov lawv siv tau me me. Lawv yog qhov tseeb zoo dua li cov roj siv uas nquag siv los ntawm lub teeb txawb. Lawv tsis tsuas yog muaj qhov ci dua tab sis kuj haus hluav taws xob tsawg, thiab muaj sia ntev dua. Txawm li cas los xij, ntawm qhov tsis tooj, tom qab muaj lub zog txuag hluav taws xob yog muab tso rau hauv kev ua haujlwm, nws pom tias qhov kev ua tsis tiav ntawm lub zog-txuag teeb tau nce siab. Qhov no yog vim tias lub zog txuag teeb yog cov uas tsis-tawm. Lawv tsim kom muaj kuab paug loj, uas muaj kuab paug rau lub zog no thiab ua rau lub hauv paus tseem ceeb tam sim no kom nyob siab ntau thaum peb-theem thauj khoom yog ib qho kev sib npaug. Qhov piv ntawm cov kab voltage rau theem voltage yog ntau me me uas muaj hluav taws xob zoo ntawm cov khoom siv hluav taws xob, muaj kev cuam tshuam hluav taws xob ntau ntxiv rau lawv lub neej pabcuam. Yog li ntawd, peb yuav tsum tswj hwm qhov kev sib haum xeeb tsim los ntawm cov khoom siv hluav taws xob tsis-linear thiab xyuas kom meej tias cov khoom sib cav sib ceg tsis tshaj li lub tebchaws.
Kho kho txoj kev:
Cov txheej txheem sib xws rau kev tswj cov harmonic tuaj yeem raug faib ua ob hom: passive lim thiab nquag lim. Tam sim no, cia luv luv qhia cov lim lim dej.
Jinneng Hluav Taws Xob Lim Hluav Taws Xob muaj cov lus teb nrawm nrawm, kev them nyiaj tau zoo, tsis muaj kev pabcuam ntev thiab ntev. Nws yog ib qho ntawm ob peb kev nyab xeeb thiab cov kev daws teeb meem zoo muaj zog muaj nyob rau tam sim no. Los ntawm kev siv lub jinneng hluav taws xob lim dej los tswj cov tshuaj phem, tab sis kuj tseem tuaj yeem raug cawm kom huv thiab muaj zog-txuag hluav taws xob ib puag ncig rau kev hla kev tsheb ciav hlau.