Tsim Cov Ntsiab Cai ntawm Tsawg-Stray-Inductance High-Density Stacked Busbars thiab Kev Ntsuam Xyuas Lawv Cov Ntawv Thov hauv Siab- Lub Hwj Chim Hluav Taws Xob Hluav Taws Xob

 

Tsav los ntawm kev nce qib hauv cov tsheb tshiab, lub zog khaws cia, tsheb thauj mus los, kev lag luam automation, thiab cov cuab yeej siv hluav taws xob ntse, cov khoom siv hluav taws xob hluav taws xob siab - tau hloov mus rau qhov hluav taws xob ntau dua, ntau zaus, thiab cov khoom siv hluav taws xob ntau dua. Hauv cov txheej txheem no, tom ntej no - tiam dav -bandgap semiconductor pab kiag li lawm- piv txwv los ntawm silicon carbide (SiC)- tau maj mam hloov cov tsoos silicon-raws li IGBTs, ua txoj hauv kev tseem ceeb thev naus laus zis rau kev txhim kho kev ua haujlwm zoo thiab txo cov khoom siv loj.

 

Piv nrog rau cov khoom siv silicon ib txwm muaj, SiC semiconductors muaj qhov dav dav dav, qhov chaw hluav taws xob siab dua, kev poob qis dua, thiab kev ua haujlwm kub siab tshaj -. Cov txiaj ntsig zoo no ua rau SiC MOSFETs ua haujlwm ntawm kev hloov pauv ntau dua thaum tso cai rau kev txo qis ntawm cov khoom sib nqus thiab cov txheej txheem tswj thermal, yog li ua kom muaj zog tag nrho.

 

Txawm li cas los xij, siab - muaj peev xwm hloov pauv ceev kuj tseem qhia txog kev sib tw engineering tshiab. Raws li kev hloov ceev ntawm cov khoom siv hluav taws xob nce, cov nqi hloov pauv tam sim no (di / dt) thiab voltage (dv / dt) nce siab. Raws li cov xwm txheej no, cov kab mob uas tsis tuaj yeem zam tsis tau nyob rau hauv lub voj voog fais fab- tshwj xeeb tshaj yog tsis muaj zog inductance- ua rau muaj kev cuam tshuam loj heev rau kev ua haujlwm ntawm lub cev.

 

Thaum lub sij hawm siab - hloov ceev, stray inductance generates transient voltage spikes raws li kev sib raug zoo:

 

V=L × di/dt

 

Thaum qhov tam sim no hloov pauv sai, txawm tias ib feeb ntawm cov stray inductance tuaj yeem tsim hluav taws xob overshoots ntawm kaum tawm volts lossis ntau dua. Cov hluav taws xob tam sim no tsis tsuas yog ua rau muaj kev ntxhov siab ntawm cov khoom siv hluav taws xob xwb tab sis tuaj yeem thawb cov cuab yeej dhau ntawm lawv qhov Chaw Ua Haujlwm Zoo (SOA), yog li cuam tshuam qhov kev ntseeg tau.

 

Yog li ntawd, nyob rau hauv niaj hnub siab - lub zog hloov pauv tshuab, txo qis lub zog voj voog inductance tau dhau los ua lub hom phiaj tseem ceeb ntawm kev txhim kho kev ua tau zoo, txhim kho electromagnetic cuam tshuam (EMI) kev ua tau zoo, thiab ua kom muaj kev nyab xeeb ntawm cov khoom siv semiconductor.

 

 

 

Stray inductance tsis yog ib qho parameter tsim los ntawm ib qho kev sib cais; es, nws yog qhov tshwm sim ntawm kev sib sau geometry ntawm tag nrho cov voj voog tam sim no. Nws feem ntau tshwm sim los ntawm inductance ntawm tus neeg xyuas pib lawv tus kheej, nrog rau los ntawm kev sib txuas terminals, cables, PCB kab, cov khoom siv hluav taws xob sab hauv, thiab busbar interconnect structures.

 

Hauv kev siv hluav taws xob niaj hnub siv cov qauv tooj liab busbars lossis cov hlua khi, feem ntau tseem ceeb spatial sib cais ntawm txoj kev zoo thiab tsis zoo tam sim no, uas ua rau thaj tsam ntawm lub voj voog tam sim no. Raws li lub hauv paus ntsiab lus ntawm electromagnetism, qhov loj ntawm lub voj cheeb tsam, qhov dav ntawm qhov generated magnetic teb, thiab lub siab dua cov parasitic inductance.

 

Hauv siab - zaus fais fab hluav taws xob, tam sim no tsis tsuas yog ntws raws qhov ntev ntawm tus neeg xyuas pib; xwb, nws tsim ib tug complex electromagnetic teb faib thoob plaws hauv ib puag ncig qhov chaw. Yog li ntawd, tus yuam sij rau kev txo qis inductance tsis yog tsuas yog ua kom lub thickness ntawm cov tooj liab busbar, tab sis nyob rau hauv optimizing txoj kev tam sim no - coj qhov zoo thiab tsis zoo Circuit Court loops nyob ze ua ke li sai tau thiab txo cov cheeb tsam uas sib nqus teb zog yog khaws cia.

 

Qhov no yog qhov laj thawj tseem ceeb vim li cas siab - ntom ntom laminated busbars tau siv dav heev.

 

 

Lub laminated busbar yog lub siab -kev ua tau zoo ntawm lub zog sib txuas ua ke tsim los ntawm kev sib txuas ntau txheej ntawm cov khoom siv hluav taws xob nrog cov xov xwm insulating. Feem ntau, nws muaj cov khoom siv hluav taws xob zoo heev - xws li tooj liab lossis txhuas - raws li cov txheej txheem conductor, sib cais los ntawm cov ntaub ntawv insulating uas muaj lub zog dielectric zoo heev thiab kev ruaj khov; tag nrho cov sib dhos yog sib koom ua ke rau hauv ib qho kev sib koom ua ke los ntawm cov txheej txheem xws li kub nias, nplaum nplaum, lossis lamination.

 

Piv rau ib txwm ib txwm- txheej tooj liab busbars, qhov zoo tshaj plaws ntawm cov qauv laminated yog nws lub peev xwm ua kom tiav qib siab ntawm kev sib tshooj ntawm txoj hauv kev zoo thiab tsis zoo tam sim no.

 

Thaum cov dej ntws tawm hauv qhov sib txawv dhau los ntawm cov neeg sib txuas sib txuas, lub hauv paus ntsiab lus ntawm kev tshem tawm electromagnetic teb siv: cov hlau nplaum uas tsim los ntawm ob qhov tam sim no tawm tsam ib leeg, txo qis tag nrho cov hlau nplaum flux uas tsim los ntawm lub voj tam sim no thiab yog li txo qis qhov sib npaug inductance.

 

Yog li ntawd, lub laminated busbar yog ntau tshaj li cov khoom siv sib txuas; Nws yog ib qho tseem ceeb ntawm electromagnetic qauv uas cuam tshuam qhov kev ua tau zoo ntawm lub zog hluav taws xob hluav taws xob.

 

Hauv siab - fais fab inverters, lub zog cia converters, thiab cov khoom siv hluav taws xob muaj zog, qis -inductance tsim tau dhau los ua ib qho kev ntsuas tseem ceeb rau kev ua kom zoo dua cov qauv busbar. Piv txwv li, qee qhov siab -kev hloov pauv ceev yuav tsum tau tsim tshwj xeeb tsim laminated busbars-xws li cov siv nyob rau hauv qhov sib txawv zaus tsav (VFDs)- kom ua tau raws li qhov system cov kev xav tau rau cov lus teb ceev ceev thiab qis - ua haujlwm poob.

 

 

 

Raws li qib kev sib koom ua ke ntawm cov khoom siv hluav taws xob nce, laminated busbars tau nthuav dav tshaj li cov khoom siv hluav taws xob ib txwm muaj rau hauv ntau qhov chaw siab - lub zog thov.

 

Piv txwv li, cov tshuab hluav taws xob hauv cov servers, cov khoom siv sib txuas lus, thiab cov chaw khaws ntaub ntawv xav tau cov qauv siv hluav taws xob muaj txiaj ntsig zoo kom txo qis kev sib kis. Raws li, laminated busbars yog ua hauj lwm nyob rau hauv siab - cov khoom siv xam qhov ceev - xws li nyob rau hauv supercomputer Circuit Court boards los yog backplanes - los xyuas kom meej lub zog ruaj khov rau siab - lub tshuab xam zauv ceev.

 

Hauv thaj chaw ntawm kev sib txuas lus hauv kev sib txuas lus, siab - cov cuab yeej siv hluav taws xob hauv paus tseem xav tau kev sib txuas lus sib txuas, kev daws teeb meem zoo; laminated busbars zoo ua tau raws li qhov txwv tsis pub hais txog qhov chaw thiab xav tau kev ua haujlwm tas mus li hauv cellular chaw nres tsheb fais fab kev faib tawm.

 

Tsis tas li ntawd, nyob rau hauv loj - teev fais fab tshuab, laminated busbars yog siv nyob rau hauv modular zog architectures- xws li nyob rau hauvFais fab Distribution Unit (PDU) busbarcov qauv-kom pab txhawb qis- tsis sib txuas ntawm ntau lub zog modules thiab txhim kho tag nrho cov kev ntseeg tau.