Nyob rau xyoo tas los no, kev txhim kho ntawm cov lag luam tshiab xws li photovoltaic cia thiab tsheb fais fab (EVs) tau ua rau muaj kev nce ntxiv ntawm qhov kev thov rau DC-Link capacitors. Hauv ntej, DC-Link capacitors ua lub luag haujlwm tseem ceeb hauv lub voj voog. Lawv tuaj yeem nqus cov hluav taws xob siab ntawm qhov kawg ntawm lub tsheb npav thiab ua kom lub zog tsheb npav du, kom ntseeg tau tias IGBT thiab SiC MOSFET switches raug tiv thaiv los ntawm cov teebmeem tsis zoo ntawm cov hluav taws xob siab thiab cov hluav taws xob transient thaum lub sijhawm ua haujlwm.
Raws li qhov hluav taws xob ntawm cov tsheb fais fab tshiab nce ntxiv los ntawm 400V mus rau 800V, qhov kev thov rau cov zaj duab xis capacitors tau nce ntxiv ntau heev. Raws li cov ntaub ntawv, lub peev xwm teeb tsa ntawm cov hluav taws xob tsav inverters raws li DC-Link thin-film capacitors tau mus txog 5.1117 lab teeb tsa hauv xyoo 2022, suav txog 88.7% ntawm lub peev xwm teeb tsa ntawm kev tswj hwm hluav taws xob. Cov tsav inverters ntawm ntau lub tuam txhab tswj hwm hluav taws xob xws li Tesla thiab Nidec txhua tus siv DC-Link zaj duab xis capacitors, uas suav txog 82.9% ntawm lub peev xwm teeb tsa thiab tau dhau los ua qhov kev xaiv tseem ceeb hauv kev lag luam tsav hluav taws xob.
Cov ntawv tshawb fawb qhia tau hais tias hauv silicon IGBT ib nrab choj inverters, cov electrolytic capacitors ib txwm muaj feem ntau siv rau hauv DC txuas, tab sis voltage surges yuav tshwm sim vim yog ESR siab ntawm electrolytic capacitors. Piv nrog rau silicon-based IGBT kev daws teeb meem, SiC MOSFETs muaj qhov hloov zaus siab dua, yog li qhov voltage surge amplitude hauv DC txuas ntawm ib nrab choj inverter yog siab dua, uas yuav ua rau lub cuab yeej ua haujlwm poob qis lossis txawm tias puas tsuaj, thiab qhov resonant zaus ntawm electrolytic capacitors tsuas yog 4kHz, uas tsis txaus los nqus cov tam sim no ripple ntawm SiC MOSFET inverters.
Yog li ntawd, hauv DC daim ntawv thov xws li hluav taws xob tsav inverters thiab photovoltaic inverters nrog cov kev ntseeg siab dua,cov capacitors zaj duab xisfeem ntau yog xaiv. Piv nrog cov txhuas electrolytic capacitors, lawv cov txiaj ntsig kev ua tau zoo yog qhov tsis kam hluav taws xob siab dua, ESR qis dua, tsis yog polarity, kev ua haujlwm ruaj khov dua, thiab lub neej ntev dua, yog li ua tiav qhov tsis kam ripple muaj zog dua thiab tsim qauv txhim khu kev qha dua.
Cov tshuab siv cov capacitors nyias-zaj duab xis tuaj yeem siv qhov zoo ntawm qhov siab zaus thiab qis poob ntawm SiC MOSFETs thiab txo qhov loj thiab qhov hnyav ntawm cov khoom passive. Wolfspeed kev tshawb fawb qhia tau hais tias 10kW silicon-based IGBT inverter xav tau 22 aluminium electrolytic capacitors, thaum 40kW SiC inverter tsuas yog xav tau 8 thin-film capacitors, thiab thaj chaw PCB kuj raug txo qis heev.
Ua raws li kev thov ntawm kev ua lag luam, YMIN Electronics tau tsim tsaMDP series ntawm cov capacitors zaj duab xis, uas siv cov thev naus laus zis siab heev thiab cov khoom siv zoo los hloov kho rau SiC MOSFET thiab silicon-based IGBT. Cov MDP series capacitors muaj ESR qis, voltage siab, tam sim no xau qis thiab kev ruaj khov kub siab.
Cov txiaj ntsig ntawm YMIN Electronics cov khoom siv capacitor zaj duab xis:
YMIN Electronics tus qauv tsim capacitor zaj duab xis siv lub tswv yim qis ESR los txo qhov kev ntxhov siab ntawm lub zog thiab kev poob zog thaum lub sijhawm hloov pauv thiab txhim kho kev siv hluav taws xob ntawm lub kaw lus. Nws muaj lub zog ntsuas siab, hloov kho rau qhov chaw muaj zog siab, thiab ua kom lub kaw lus ruaj khov.
Cov MDP series capacitors muaj peev xwm ntau ntawm 1uF-500uF thiab qhov voltage ntau ntawm 500V txog 1500V. Lawv muaj qhov xau qis dua thiab qhov kub thiab txias ruaj khov dua. Los ntawm cov ntaub ntawv zoo thiab cov txheej txheem siab heev, cov qauv cua sov ua haujlwm tau zoo yog tsim los xyuas kom meej tias muaj kev ua haujlwm ruaj khov ntawm qhov kub thiab txias siab, txuas ntxiv lub neej kev pabcuam, thiab muab kev txhawb nqa txhim khu kev qha rau cov kab ke hluav taws xob fais fab. Tib lub sijhawm, lubMDP series capacitorslawv me me, muaj zog ntau, thiab siv cov txheej txheem tsim cov yeeb yaj kiab nyias tshiab los txhim kho kev sib koom ua ke thiab kev ua haujlwm zoo, txo qhov loj thiab qhov hnyav, thiab ua kom cov khoom siv yooj yim nqa thiab yooj ywm.
YMIN Electronics DC-Link zaj duab xis capacitor series muaj kev txhim kho 30% hauv dv / dt kev kam rau siab thiab 30% nce hauv kev pabcuam lub neej, uas txhim kho kev ntseeg siab ntawm SiC / IGBT circuits, coj kev siv nyiaj zoo dua, thiab daws qhov teeb meem nqi.
Lub sijhawm tshaj tawm: Lub Ib Hlis-10-2025