Yuav daws qhov teeb meem ntau dhau ntawm inductance hauv EV zaj duab xis capacitor busbars li cas?

Lub EV Film Capacitor Busbar ua haujlwm tseem ceeb hauv kev sib txuas txuas txuas nrog lub inverter, hluav taws xob tswj qhov system, thiab capacitor module nyob rau hauv lub zog tshiab tsheb, feem ntau pab txhawb siab - zaus, siab - tam sim no fais fab kis. Nyob rau hauv siab -frequency switching conditions-xws li cov uas koom nrog SiC lossis IGBT technologies-cov kab mob parasitic inductance ntau dhau ntawm lub busbar tuaj yeem ua rau muaj teeb meem xws li qhov hluav taws xob tawg, hluav taws xob cuam tshuam, thiab qhov kub tsis zoo. Cov teeb meem no cuam tshuam ncaj qha rau kev ua haujlwm ruaj khov thiab kev pabcuam lub neej ntawm lub tsheb lub tshuab hluav taws xob tswj, ua rau cov kab mob parasitic inductance yog qhov tseem ceeb uas yuav tsum muaj kev tswj hwm nruj thaum lub sijhawm R & D thiab cov khoom siv hluav taws xob ntau.

Flawed structural tsim yog thawj qhov ua rau ntau dhau inductance. Ib txwm tsis yog-laminated capacitor busbars raug kev txom nyem los ntawm cov teeb meem xws li ntau qhov sib nrug ntawm qhov zoo thiab qhov tsis zoo thiab txoj hauv kev ntev dhau lawm; qhov tsis ua hauj lwm ntawm kev tsim qauv laminated tsim tau ua rau muaj kev cuam tshuam loj rau thaj tsam tam sim no, uas ua rau muaj kab mob parasitic inductance tsis tu ncua uas ua tsis tau raws li qhov yuav tsum tau ua ntawm siab - zaus inverters.

Suboptimal interlayer qauv tsim exacerbates qhov teeb meem ntawm ntau inductance. Laminated capacitor busbars cia siab rau kev sib khi nruj thiab lamination ntawm tooj liab thiab rwb thaiv tsev txheej kom ua tiav cov yam ntxwv qis ntawm - inductance; Txawm li cas los xij, hauv qee cov khoom, cov txheej txheem tooj liab tsis zoo, xoob coupling ntawm qhov zoo thiab qhov tsis zoo, thiab cov txheej txheem interlayer tsis zoo tiv thaiv kev tshem tawm cov hlau nplaum zoo thiab tsis ua kom zoo dua tam sim no txoj kev sib kis, ua rau muaj kev cuam tshuam tag nrho cov inductance.

Deviations nyob rau hauv loj ntau lawm precision ua rau tsis zoo inductance sib xws. Thaum lub sij hawm ntim ntau lawm, kam rau ua txawv ntawm tooj liab thickness, stamping thiab dabtsi yog khoov qhov ntev, thiab rwb thaiv tsev thickness tuaj yeem ua rau tus neeg xyuas pib misalignment thiab inconsistent interlayer spacing. Qhov tsis muaj qhov loj me me ua rau muaj kev hloov pauv tseem ceeb hauv inductance tsis sib xws ntawm ib tus neeg, cuam tshuam qhov kev ua haujlwm zoo sib xws ntawm busbar system.

Kev ua tsis raug ntawm -qhov kev teeb tsa ntawm qhov chaw ua kom muaj zog inductance- cuam tshuam txog cov teeb meem. Txoj hauv kev zoo tshaj plaws rau kev teeb tsa- xws li cov kab txuas txuas ntev ntev, ntau dhau ntawm cov ntsiab lus txuas sab nraud, thiab cov txheej txheem tsis sib haum xeeb ntawm lub davhlau ya nyob twg- ua kom ntev lub voj voog sib kis tam sim no. Qhov no ua rau lub busbar qhov muaj kab mob parasitic inductance, ua rau muaj kev ua haujlwm tsis zoo xws li kev hloov pauv hluav taws xob thiab kev cuam tshuam ntau dhau thaum lub sijhawm ua haujlwm siab - zaus IGBT.

Optimize tus txheej txheem layout ntawm laminated busbars kom txo tau parasitic inductance ntawm qhov chaw. Los ntawm kev txo qhov sib nrug ntawm qhov zoo thiab tsis zoo conductors, streamlining tam sim no kis tau tus mob txoj kev, thiab siv symmetrical conductor npaj, tag nrho cov busbar layout yog optimized; leveraging lub hauv paus ntsiab lus ntawm kev tawm tsam tam sim no nyob rau hauv laminated khaubncaws sab nraud povtseg txo lub voj cheeb tsam thiab zoo suppresses parasitic inductance, ua tus tsim tsim nyog rau siab - zaus fais fab kis tau tus mob nyob rau hauv tshiab zog daim ntaub ntawv.

Txhim kho pawg ntau lawm precision kom paub meej parameter sib xws. Siv precision stamping thiab standardized dabtsi yog khoov txheej txheem, lub thickness ntawm tooj liab conductors thiab rwb thaiv tsev txheej, raws li zoo raws li lamination alignment raug, yog nruj me ntsis tswj; qhov no txhim kho qhov chaw tus neeg xyuas pib, txo qhov kev hloov pauv ntawm inductance tshwm sim los ntawm kev tsim khoom, thiab ua kom muaj kev ua tau zoo sib xws thoob plaws pawg- cov khoom tsim tawm.

Txhim kho lub davhlau ya nyob twg qauv thiab installation interface tsim. Txo qhov kev ncua deb ntawm lub davhlau ya nyob twg, ua kom zoo dua cov ntsiab lus mating, thiab txhim kho cov qauv kev sib txuas sab nraud kom txo tau txoj hauv kev tam sim no. Tsis tas li ntawd, kho lub davhlau ya nyob twg configurations kom haum rau qhov ntev ntawm capacitors thiab inverters, yog li txhim kho kev sib txuas haum thiab txo cov kab mob parasitic inductance qhia thaum lub sijhawm teeb tsa.

Txhim kho qhov kev tshuaj xyuas kev ua tau zoo thiab kev sim rau cov khoom tiav. Ua qhov kev ntsuam xyuas tshwj xeeb ntawm qis -inductance busbars- npog qhov tsis xws li inductance, conduction resistance, rwb thaiv tsev kev ua tau zoo, thiab kub nce cycling - kom nruj me ntsis saib xyuas cov ntsiab lus tseem ceeb ntawm txhua pawg, kom ua raws li cov qauv tsim khoom loj rau cov khoom siv hluav taws xob tshiab.

Txhawm rau daws cov teeb meem xws li inductance ntau dhau, cov qauv tsis sib xws, thiab kev ua haujlwm hloov pauv hauv huab hwm coj ntau txog cov tsheb thauj mus los rau lub zog tshiab (NEV) capacitors, lub tuam txhab muaj peev xwm nthuav dav los ntawm kev tsim kho kom zoo rau kev tsim khoom. Los ntawm kev siv cov txheej txheem xws li precision stamping, raug dabtsi yog khoov, laser vuam, rwb thaiv tsev lamination, thiab kev soj ntsuam qhov ntev, lub tuam txhab nruj me ntsis tswj tus neeg xyuas pib qhov sib nrug, interlayer positioning, thiab rwb thaiv tsev thickness, yog li txo qis parasitic inductance variations los ntawm kev tsim deviations.

Siv cov kev paub dhau los hauv kev lag luam hluav taws xob thiab ua raws li IATF16949 kev tswj hwm kev ua haujlwm zoo, lub tuam txhab muab kev tsim kho thiab kev txhawb nqa ntau lawm rau cov khoom xws liEV Film Capacitor Busbarthiab laminated busbars. Cov kev daws teeb meem no pab cov neeg siv khoom txhim kho txoj hauv kev tam sim no thiab txhim kho kev ua tau zoo ntawm hluav taws xob, ua tau raws li cov kev xav tau nruj me ntsis rau qis -inductance, siab - kev ntseeg siab sib cuam tshuam hauv NEV inverters, hluav taws xob tswj tshuab, thiab cov khoom siv hluav taws xob.

Yog tias koj tab tom tsim hluav taws xob tswj cov tshuab, inverter, lossis capacitor modules rau lub tsheb tshiab thiab tab tom ntsib teeb meem xws li inductance ntau dhau hauv EV zaj duab xis capacitor busbars, voltage spikes, lossis kev txhawj xeeb txog kev sib txuas, peb caw koj los tham txog koj qhov kev thov tshwj xeeb. Peb muab cov kev daws teeb meem zoo raws li cov txheej txheem sib txawv ntawm cov txheej txheem architectures -xws li los ntawm kev tsim kho kom zoo thiab kev tsim qauv mus rau ntau lawm.