Daim ntawv thov ntawm LC series resonance? Wuhan UHV tshwj xeeb hauv kev tsim khoomseries resonance, nrog ntau yam khoom xaiv thiab kev kuaj hluav taws xob. Nrhiavseries resonance, xaiv Wuhan UHV.
Disadvantages tshwm sim los ntawm resonance
Resonance feem ntau yog tsim los ntawm siab - cov khoom siv hluav taws xob hloov hluav taws xob (xws li cov cuab yeej siv tshuaj electrolytic rectification) thiab lwm yam khoom tsis sib haum hu ua harmonic sources. Lub resonance tsim los ntawm cov khoom sib haum xeeb tsis yog tsuas yog ua rau lub zog hluav taws xob thiab lwm cov neeg siv hluav taws xob, tab sis kuj ua rau nws tus kheej txaus ntshai. Yog li ntawd, kev tswj hwm kev sib haum xeeb yog qhov tsim nyog thiab muaj txiaj ntsig kev lag luam. Piv txwv li: Ib qho chaw cog tshuaj yog siv los ntawm Chaw Nres Tsheb Haocun. Peb txheej ntawm 10.8Mvar parallel capacitor raug teeb tsa hauv qhov chaw nres tsheb, uas txuas nrog cov reactors nrog reactance tus nqi ntawm 4.5%, 7%, thiab 12%, feem. Lawv raug siv los txwv kev nthuav dav ntawm thib tsib thiab saum toj no, plaub thiab saum toj no, thiab thib peb thiab saum toj no harmonics, thiab ua kom tsis tiav vibration filtering rau thib tsib, plaub, thiab thib peb harmonics, raws li. Tom qab muab tso rau hauv kev ua haujlwm, cov capacitors tau ntsib ntau dhau thiab suab nrov txawv txav. Qee cov capacitors bulged sai tom qab muab tso rau hauv kev ua haujlwm. Kev sim tom qab pom tias qhov kev sib haum xeeb ntawm lub tsheb npav thiab qhov sib haum xeeb tam sim no ntawm lub capacitor Circuit Court dhau tus qauv. Txhawm rau tiv thaiv kev puas tsuaj ntxiv rau cov cuab yeej, tag nrho 10.8Mvar capacitor raug tshem tawm ntawm kev ua haujlwm. Kev ntsuam xyuas ntxiv ntawm Hecun Chaw Nres Tsheb qhia tau hais tias cov kev sib haum xeeb feem ntau yog los ntawm cov nroj tsuag tshuaj, nrog cov ntsiab lus siab sib haum xeeb thiab ntau qhov ntau zaus (qhov qis tshaj yog theem nrab). Tom qab ntau qhov kev tshawb nrhiav thiab kev ntsuam xyuas los ntawm cov neeg ua haujlwm tshaj lij ntawm kev xaim, kev teeb tsa cov khoom siv, thiab kev ua haujlwm ntawm lub zog faib hluav taws xob hauv cov tshuaj cog, qhov xwm txheej tau raug lees paub, thiab cov laj thawj ntawm qhov thib ob thiab ntau dua kev sib haum xeeb tau raug tshuaj xyuas, thiab cov phiaj xwm kev tswj hwm tau raug tsim.
Daim ntawv thov ntawm series resonance
xaiv zaus
Cov yam ntxwv xaiv zaus ntawm series resonant circuits yog siv nyob rau hauv kev sib txuas ntawm cov xov tooj cua receivers los xaiv cov teeb liab. Lub receiver kav hlau txais xov tau txais cov cim ntawm ntau zaus thiab induces coj electromotive rog nyob rau hauv lub series resonant circuit. Nyob rau ntawm lub sijhawm no, hloov tus nqi ntawm "tsis paub meej capacitor" kho qhov xav tau lub teeb liab zaus mus rau lub xeev resonant series. Lub impedance ntawm Circuit Court yog minimized, thiab tam sim no ntawm qhov zaus yog maximized. Qhov voltage ntawm qhov zaus no kuj yog siab tshaj ntawm ob qho kawg ntawm lub capacitor sib txawv. Txawm li cas los xij, cov teeb liab ntawm lwm zaus yog attenuated vim tsis muaj resonance, yog li tam sim no nyob rau hauv Circuit Court yog heev me me, yog li ua lub luag hauj lwm nyob rau hauv xaiv cov teeb liab thiab suppressing cuam tshuam.
lim
Yog tias cov nthwv dej trapezoidal lossis cov nthwv dej sib npaug hloov mus rau hauv lub teeb liab sine, siab -kev txiav txim siab yuav tsum tau lim tawm. Ib txoj hauv kev yooj yim yog siv Fourier series nthuav dav ntawm cov nthwv dej trapezoidal lossis cov duab plaub kom tau txais tus lej tsis kawg ntawm cov khoom sib txawv ntawm AC, thiab qhov siab tshaj plaws ntawm txhua qhov kev sib haum xeeb txo qis nrog qhov nce ntawm kev sib haum xeeb. Nws tuaj yeem pom tau tias ntev npaum li qhov siab tshaj plaws thib peb thiab thib tsib kev sib haum xeeb hauv cov nthwv dej trapezoidal lossis cov duab plaub raug lim tawm, tus qauv sine yoj tuaj yeem tau txais. Resonance tshwm sim nyob rau hauv lub hauv paus kev sib haum xeeb ntawm lub voj voog tsis sib xws, uas txhais tau hais tias lub lim dej hauv Circuit Court paub los ntawm cov yam ntxwv ntawm resonance tias thaum series resonance tshwm sim nrog AC lub zog ntawm ib qho zaus, qhov impedance ntawm AC lub zog ntawm qhov zaus yog qhov tsawg tshaj plaws, thaum lub sij hawm thaum uas tig mus resonance tshwm sim, impedance ntawm AC lub cev muaj zog yog qhov loj tshaj plaws ntawm qhov frequency.
feature
Qhov voltage waveform yog zoo.Series resonanceyog ib tug voltage withstand lub xeev uas nyob ze rau tag nrho resonance. Thaum qhov tsis muaj zog ntawm cov rwb thaiv tsev nyob rau hauv cov qauv kuaj tau tawg, lub Circuit Court poob resonance tej yam kev mob. Yog li ntawd, luv luv - Circuit Court tam sim no poob rau ib feem kaum ntawm qhov ntsuas tam sim no, qhov hluav taws xob siab ploj tam sim ntawd, thiab lub arc raug tua tam sim ntawd. Txawm li cas los xij, siv cov kev sim tshuaj ib txwm siv, luv luv - Circuit Court tam sim no yuav loj heev, thiab cov qauv ntsuas yuav tsim cov resonance nrog rau qhov ntsuas transformer, uas ua rau muaj qhov tseem ceeb overvoltage, uas ua rau muaj kev puas tsuaj rau cov qauv kuaj thiab cov khoom siv kuaj. Me me thiab hnyav, haum rau ntawm - siv qhov chaw. Vim qhov txo qis hauv peev xwm thiab qhov hnyav ntawm qhov ntsuas hluav taws xob, nrog rau kev tshem tawm cov hluav taws xob hluav taws xob loj, nws yooj yim dua rau kev thauj mus los thiab daws ntawm - qhov chaw kuaj hluav taws xob teeb meem. Yooj yim rau kev sib txuas, yooj yim rau kev khiav lag luam, kev hloov hluav taws xob thiab zaus tuaj yeem hloov kho tsis tu ncua thiab zoo, nrog kev daws teeb meem zoo thiab ruaj khov.
10kV xeem txoj kev thiab txoj cai
Nrog rau kev txhim kho txuas ntxiv ntawm lub zog hluav taws xob thiab kev muaj peev xwm thiab qhov hluav taws xob ntau ntxiv ntawm qhov system, cov kev sim rau cov khoom siv hluav taws xob yuav tsum tau txhim kho. Vim hais tias raws li cov kev cai xeem thiab kev tiv thaiv kev ntsuas rau cov khoom siv hluav taws xob, nws yog ib qho tsim nyog yuav tsum tau ua AC tiv thaiv qhov ntsuas hluav taws xob ntawm cov khoom siv hluav taws xob, uas yuav tsum muaj qhov hluav taws xob siab. Cov txheej txheem dhau los ntawm kev tau txais hluav taws xob siab yog siv qhov sib piv loj voltage transformer rau lub zog zaus boosting. Siv txoj kev txhawb nqa no, vim qhov loj thiab loj ntawm cov cuab yeej siv, lub crane yuav tsum tau siv rau kev txav mus los thiab kev teeb tsa, ua rau ntawm - qhov chaw sim tsis yooj yim heev. Ib qho tshiab boosting ntaus ntawv tsim raws li lub hauv paus ntsiab lus ntawm series resonance tsis tsuas yog daws qhov teeb meem ntawm clumsy xeem cov cuab yeej, tab sis kuj ua kom tiav cov tiv thaiv voltage xeem nyob rau hauv cov khoom hluav taws xob zoo. Txhawm rau kuaj cov khoom siv tib yam nrog cov khoom siv hluav taws xob resonant boost, tsuas yog inductors, capacitors, thiab qee cov khoom siv me me yog xav tau. Thaum lub sij hawm sim, txhua pab pawg ntawm capacitors yog txuas nrog nyob rau hauv parallel thiab ces txuas rau hauv series nrog ib tug inductor. Qhov kev sim ua tiav tuaj yeem ua tiav los ntawm kev sib sau ua ke los ntawm kev sib tshooj modular. Tus nqi ntawm cov cuab yeej ntsuas no zoo ib yam li qhov sib piv loj voltage transformer, tsawg dua 100000 yuan. Txawm li cas los xij, daim ntawv thov ntawm cov khoom siv hluav taws xob resonant boosting tuaj yeem txuag cov nuj nqis ntau dhau hauv txhua qhov kev sim thiab zam kev nyuaj hauv kev sim. Yog li lub koob resonant boost ntaus ntawv muaj kev lag luam zoo thiab muaj txiaj ntsig zoo, thiab tau pib nce qib hauv kev xeem engineering.
Vim qhov tseeb tias qhov tsis sib xws ntawm cov qauv ntsuas tuaj yeem cuam tshuam rau cov yam ntxwv ntawm cov thawj series Circuit Court, kev sib raug zoo ntawm Cx thiab C, Co, thiab L yuav tsum tau soj ntsuam thiab txiav txim siab kom induce resonance hauv Circuit Court. Kho L thiab C tuaj yeem coj lub voj voog mus rau qhov chaw resonance. Nws tuaj yeem pom tias txawm tias covseries resonant xeem systemdaws qhov tsis zoo ntawm cov khoom siv clumsy, nws yog ib qho tsim nyog los laij cov txiaj ntsig ntawm L thiab C ua ntej raws li txoj cai resonance thaum kuaj cov khoom sib txawv. Los ntawm kev siv cov khoom siv ntawm series resonance, nws yog qhov yooj yim los ua transformer AC withstand voltage tests. Txawm li cas los xij, qhov sib txawv yog tias thaum lub tshuab hloov pauv muaj lub peev xwm loj rau hauv av, nws tus nqi capacitance yuav tsum tau muab tso rau hauv kev sib tw, thaum lub capacitance rau hauv av tsawg heev, tsuas yog qhov kev hloov pauv ntawm qhov ntsuas nws tus kheej yuav tsum tau txiav txim siab thaum kho. Tsis tas li ntawd, muaj qhov sib txawv tseem ceeb ntawm cov yam ntxwv parameter ntawm cov thawj thiab theem nrab ntawm cov transformer. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau ua kom raug xam thiab tsim cov L thiab C qhov tseem ceeb hauv qhov kev sim.