I-Film capacitors inceda i-SiC kunye ne-IGBT iteknoloji iqhubela phambili ngokukhawuleza: I-YMIN capacitor application solutions

Kwiminyaka yakutshanje, uphuhliso olukhulayo lwamashishini anamandla amatsha afana nokugcinwa kwe-photovoltaic kunye nezithuthi zombane (EVs) kubangele ukunyuka okubukhali kwimfuno ye-DC-Link capacitors. Ngamafutshane, i-DC-Link capacitors idlala indima ebalulekileyo kwisekethe. Bayakwazi ukufunxa i-pulse currents ephezulu ekupheleni kwebhasi kwaye bagudise i-voltage yebhasi, baqinisekise ukuba ii-IGBT kunye ne-SiC MOSFET zokutshintsha zikhuselwe kwimiphumo emibi ye-pulse currents ephezulu kunye nombane odlulayo ngexesha lokusebenza.

Njengoko i-voltage yebhasi yezithuthi zamandla amatsha inyuka ukusuka kwi-400V ukuya kwi-800V, imfuno yefilimu capacitors iye yanda kakhulu. Ngokutsho kwedatha, umthamo ofakiweyo we-electric drive inverters esekelwe kwi-DC-Link thin-film capacitors ifikelele kwi-5.1117 yezigidi zeesethi kwi-2022, ibalwa kwi-88.7% yomthamo ofakiweyo wokulawula umbane. I-inverters ye-drive yeenkampani ezininzi eziphambili zokulawula umbane ezifana ne-Tesla kunye ne-Nidec zonke zisebenzisa i-DC-Link film capacitors, ezithatha i-82.9% yomthamo ofakiweyo kwaye ibe yinto ekhethwayo kwimarike yokuqhuba umbane.

Amaphepha ophando abonisa ukuba kwi-silicon IGBT i-half-bridge inverters, ii-electrolytic capacitors zendabuko zihlala zisetyenziswa kwikhonkco le-DC, kodwa ukunyuka kombane kuya kwenzeka ngenxa ye-ESR ephezulu yee-electrolytic capacitors. Xa kuthelekiswa nezisombululo ze-IGBT ezisekelwe kwi-silicon, ii-SiC MOSFETs zinesantya esiphezulu sokutshintsha, ngoko ke i-voltage surge amplitude kwikhonkco le-DC ye-half-bridge inverter iphezulu, nto leyo enokubangela ukuhla kokusebenza kwesixhobo okanye nomonakalo, kunye ne-resonant frequency ye-electrolytic capacitors yi-4kHz kuphela, enganelanga ukufunxa i-MOS rippleC ye-SiverC yangoku.

Ke ngoko, kwizicelo zeDC ezinje ngee-inverters zombane kunye nee-photovoltaic inverters ezineemfuno eziphezulu zokuthembeka,iicapacitors zefilimuzidla ngokukhethwa. Xa kuthelekiswa ne-aluminiyam electrolytic capacitors, iingenelo zabo zokusebenza kukuxhathisa amandla ombane aphezulu, i-ESR esezantsi, i-non-polarity, ukusebenza okuzinzile, kunye nobomi obude, ngaloo ndlela bafumana ukuxhathisa okunamandla kunye noyilo lwenkqubo ethembekileyo.

Iinkqubo ezisebenzisa ii-capacitors zefilimu ezincinci zinokuthatha ithuba lokuphindaphinda okuphezulu kunye nelahleko ephantsi yee-SiC MOSFETs kwaye zinciphise ubungakanani kunye nobunzima bezinto ezingenziwayo. Uphando lweWolfspeed lubonisa ukuba i-10kW silicon-based IGBT inverter idinga i-22 aluminium electrolytic capacitors, ngelixa i-40kW SiC inverter ifuna kuphela i-8 capacitors yefilimu encinci, kwaye indawo ye-PCB nayo iyancipha kakhulu.

Ukuphendula imfuno yemarike, iYMIN Electronics yasungula iUluhlu lwe-MDP lwee-filimi capacitors, esebenzisa itekhnoloji ephezulu kunye nezixhobo ezikumgangatho ophezulu ukuqhelanisa neSiC MOSFET kunye ne-silicon-based IGBT. I-MDP series capacitors ibonisa i-ESR ephantsi, i-voltage ephezulu yokumelana, ukuvuza okuphantsi kwangoku kunye nokuzinza okuphezulu kweqondo lokushisa.

Izinto eziluncedo kwiimveliso zefilimu ye-YMIN Electronics:

Uyilo lwecapacitor yefilimu ye-YMIN Electronics yamkela ingqikelelo ye-ESR ephantsi yokunciphisa uxinzelelo lombane kunye nokulahleka kwamandla ngexesha lokutshintsha kunye nokuphucula ukusebenza kakuhle kwamandla. Inomthamo olinganisiweyo ophezulu wombane, iqhelanisa nemekobume yamandla ombane aphezulu, kwaye iqinisekisa uzinzo lwenkqubo.

I-MDP series capacitors inoluhlu lwamandla e-1uF-500uF kunye noluhlu lwe-voltage ye-500V ukuya kwi-1500V. Banexesha eliphantsi lokuvuza kunye nozinzo oluphezulu lobushushu. Ngokusebenzisa izinto eziphezulu kunye neenkqubo eziphambili, isakhiwo esisebenzayo sokutshatyalaliswa kobushushu senzelwe ukuqinisekisa ukusebenza okuzinzile kumaqondo okushisa aphezulu, ukwandisa ubomi benkonzo, kunye nokubonelela ngenkxaso ethembekileyo kwiinkqubo zombane zamandla. Kwangaxeshanye, iMDP series capacitorszixinene ngobungakanani, ziphezulu kumandla oxinaniso, kwaye zisebenzisa iinkqubo ezintsha zokwenziwa kweefilim ezibhityileyo ukuphucula ukudityaniswa kwenkqubo nokusebenza kakuhle, ukunciphisa ubungakanani kunye nobunzima, kunye nokwandisa ukuthwaleka kwezixhobo kunye nokuguquguquka.

I-YMIN Electronics i-DC-Link ifilimu ye-capacitor series ine-30% yokuphucula ukunyamezela kwe-dv / dt kunye nokunyuka kwe-30% kwinkonzo yobomi, ephucula ukuthembeka kweesekethe ze-SiC / IGBT, izisa iindleko ezingcono, kunye nokusombulula ingxaki yexabiso.