Lapho kuxoxwa ngezinto ezintsha kanye nokuthuthukiswa kwezinhlelo zokufaka ugesi kwezimoto zikagesi, ukugxila kuvame ukubekwa ezingxenyeni eziyinhloko njengeyunithi yokulawula eyinhloko namadivayisi kagesi, kuyilapho izingxenye ezisizayo njengama-capacitor zivamise ukuthola ukunakwa okuncane. Kodwa-ke, lezi zingxenye ezisizayo zinomthelela omkhulu ekusebenzeni okuphelele kwesistimu. Lesi sihloko sizocubungula ukusetshenziswa kwama-capacitor efilimu ye-YMIN kumashaja angaphakathi futhi sihlole ukukhethwa nokusetyenziswa kwama-capacitor ezimotweni zikagesi.
Phakathi kwezinhlobo ezahlukahlukene zama-capacitor,i-aluminium electrolytic capacitorsbanomlando omude futhi babambe isikhundla esibalulekile emkhakheni wamandla kagesi. Kodwa-ke, ngokuvela kwezidingo zobuchwepheshe, ukulinganiselwa kwama-electrolytic capacitor kuye kwabonakala ngokuqhubekayo. Ngenxa yalokho, kuye kwavela enye indlela engcono kakhulu—ama-capacitor efilimu.
Uma kuqhathaniswa nama-electrolytic capacitor, ama-capacitor amafilimu anikeza izinzuzo ezibalulekile ngokuya nge-voltage endurance, ukumelana nochungechunge olulinganayo oluphansi (ESR), okungeyona i-polarity, ukuzinza okuqinile, nokuphila isikhathi eside. Lezi zici zenza ama-filimi capacitor avelele ekwenzeni lula ukuklama kwesistimu, kuthuthukise amandla amanje e-ripple, kanye nokuhlinzeka ngokusebenza okuthembeke kakhulu ngaphansi kwezimo zemvelo ezinzima.
Ithebula: Izinzuzo zokusebenza ngokuqhathanisa zeifilimu capacitorskanye ne-aluminium electrolytic capacitors
Ngokuqhathanisa ukusebenza kwama-capacitor amafilimu nendawo yokufaka isicelo sezimoto zikagesi, kuyabonakala ukuthi kukhona izinga eliphezulu lokuhambisana phakathi kwalaba ababili. Ngakho-ke, ama-capacitor amafilimu ngokungangabazeki ayizingxenye ezithandwayo ohlelweni lokufakwa kukagesi ezimotweni zikagesi. Kodwa-ke, ukuze kuqinisekiswe ukufaneleka kwawo kwezinhlelo zokusebenza zezimoto, lawa ma-capacitor kufanele ahlangabezane nezindinganiso eziqinile zezimoto, njenge-AEC-Q200, futhi abonise ukusebenza okuthembekile ngaphansi kwezimo ezimbi kakhulu. Ngokusekelwe kulezi zidingo, ukukhethwa kanye nokusetshenziswa kwama-capacitor kufanele kuhambisane nalezi zimiso.
01 Ama-capacitor wefilimu ku-OBC
Uchungechunge | I-MDP | I-MDP(H) |
Isithombe | ||
Amandla (Ububanzi) | 1μF-500μF | 1μF-500μF |
I-Voltage elinganiselwe | 500Vd.c.-1500Vd.c. | 500Vd.c.-1500Vd.c. |
Izinga Lokushisa Lokusebenza | Ikalwe ngu-85 ℃, izinga lokushisa eliphezulu ngu-105 ℃ | Ukushisa okuphezulu ngu-125 ℃, isikhathi esisebenzayo ngu-150 ℃ |
Imithetho yemoto | I-AEC-Q200 | I-AEC-Q200 |
Yenza ngokwezifiso | Yebo | Yebo |
Isistimu ye-OBC (Ebhodini Leshaja) ngokuvamile iqukethe izingxenye ezimbili eziyinhloko: isifunda esilungisa kabusha esiguqula amandla amakhulu e-AC abe yi-DC, kanye nesiguquli samandla se-DC-DC esikhiqiza amandla kagesi e-DC adingekayo ukuze ashaje. Kule nqubo,ifilimu capacitorsthola isicelo ezindaweni ezimbalwa ezibalulekile, okuhlanganisa:
●Ukuhlunga kwe-EMI
●I-DC-Link
●Ukuhlunga Okukhiphayo
●I-Resonant Tank
02 Izimo zokusetshenziswa kwama-filimi capacitor ku-OBC
EV | OBC | Isixhumanisi se-DC | I-MDP(H) | |
Isihlungi Sokuphumayo | Isihlungi Sokufaka | I-MDP |
YMINinikeza uhla lwemikhiqizo ye-film capacitor elungele i-DC-Link kanye nezinhlelo zokusebenza zokuhlunga okukhiphayo. Ngokuphawulekayo, yonke le mikhiqizo iqinisekisiwe nge-AEC-Q200 yezinga lezimoto. Ukwengeza, i-YMIN inikeza amamodeli akhethekile adizayinelwe izindawo ezishisa kakhulu nezinomswakama ophezulu (THB), enikeza onjiniyela ukuguquguquka okukhulu ekukhetheni ingxenye.
I-DC-Link Capacitors
Kusistimu ye-OBC, i-DC-Link capacitor ibalulekile ekusekeleni kwamanje nokuhlunga phakathi kwesekhethi yokulungisa kabusha kanye nesiguquli se-DC-DC. Umsebenzi wayo oyinhloko ukumunca ama-pulse currents aphezulu ebhasini le-DC-Link, ukuvimbela ama-voltage aphezulu epulse ku-impedance ye-DC-Link futhi kuvikelwe umthwalo ekugawulweni kwamandla.
Izici ezingokwemvelo zama-capacitor wefilimu—njengokubekezelela amandla kagesi aphezulu, amandla amakhulu, kanye nokungakhethi-polarity—ziwenza afaneleke ezinhlelweni zokuhlunga ze-DC-Link.
I-YMIN'sI-MDP(H)uchungechunge luyisinqumo esihle kakhulu se-DC-Link capacitor, esinikeza:
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Ama-Capacitor Okuhlunga Okukhiphayo
Ukuze kuthuthukiswe izici zokuphendula zesikhashana zokukhiphayo kwe-OBC's DC, i-capacitor yokuhlunga enkulu ene-ESR iyadingeka. I-YMIN inikeza iI-MDPi-low-voltage DC-Link film capacitor, efaka:
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Le mikhiqizo ihlinzeka ngokusebenza okuvelele, ukwethembeka, kanye nokuvumelana nezimo ezinhlelweni zokusebenza zezimoto ezifunayo, iqinisekisa ukusebenza kwe-OBC okuphumelelayo nokuzinzile.
03 Isiphetho
Isikhathi sokuthumela: Dec-26-2024