Pere e ntle e lokeloa ke sale e ntle! Ho sebelisa ka botlalo melemo ea lisebelisoa tsa SiC, ho boetse hoa hlokahala ho kopanya sistimi ea potoloho le li-capacitor tse loketseng. Ho tloha taolong e kholo ea likoloi tsa motlakase ho ea ho matla a macha a matla a matla joaloka li-inverters tsa photovoltaic, li-capacitor tsa lifilimi li ntse li fetoha tse tloaelehileng, 'me' maraka o hloka ka potlako lihlahisoa tse theko e boima haholo.
Haufinyane tjena, Shanghai Yongming Electronic Co., Ltd. e phatlalalitse li-capacitor tsa lifilimi tsa DC, tse nang le melemo e mene e ikhethang e li etsang hore li tšoanelehe bakeng sa li-IGBT tsa moloko oa bosupa oa Infineon. Li boetse li thusa ho sebetsana le mathata a botsitso, ho ts'epahala, miniaturization, le litšenyehelo lits'ebetsong tsa SiC.
Li-capacitor tsa lifilimi li fihlella hoo e ka bang 90% ea ho kenella lits'ebetsong tse kholo tsa drive. Hobaneng ha SiC le IGBT li li hloka?
Lilemong tsa morao tjena, ka nts'etsopele e potlakileng ea liindasteri tse ncha tsa matla tse kang polokelo ea matla, ho tjhaja, le likoloi tsa motlakase (EVs), tlhokahalo ea li-capacitor tsa DC-Link e ntse e eketseha ka potlako. Ka mantsoe a bonolo feela, li-capacitor tsa DC-Link li sebetsa e le li-buffer li-circuits, li monya maqhubu a phahameng a maqhubu ho tloha pheletsong ea bese le ho theola motlakase oa libese, ka hona li sireletsa li-switch tsa IGBT le SiC MOSFET ho maqhubu a phahameng a pulse le litlamorao tsa motlakase oa nakoana.
Ka tloaelo, li-capacitor tsa aluminium electrolytic li sebelisoa lits'ebetsong tsa tšehetso tsa DC. Leha ho le joalo, ka matla a libese a likoloi tse ncha tsa matla a ntseng a eketseha ho tloha ho 400V ho ea ho 800V le lisebelisoa tsa photovoltaic tse lebisang ho 1500V esita le 2000V, tlhokahalo ea li-capacitor tsa lifilimi e ntse e phahama haholo.
Lintlha li bonts'a hore ka 2022, matla a kentsoeng a li-inverters tsa motlakase tse thehiloeng ho li-capacitor tsa lifilimi tsa DC-Link li fihlile ho li-unit tse limilione tse 5.1117, e leng karolo ea 88.7% ea kakaretso e kentsoeng ea taolo ea elektroniki. Lik'hamphani tse etellang pele tsa taolo ea elektronike tse kang Fudi Power, Tesla, Inovance Technology, Nidec, le Wiran Power kaofela li sebelisa li-capacitor tsa lifilimi tsa DC-Link ho li-inverters tsa tsona tsa koloi, tse nang le tekanyo e kopantsoeng ea bokhoni ba ho fihla ho 82.9%. Sena se bontša hore li-capacitor tsa lifilimi li nkile sebaka sa li-electrolytic capacitor e le tsona tse ka sehloohong 'marakeng oa likoloi tsa motlakase.
Lebaka ke hobane matla a phahameng a ho hanyetsa motlakase oa aluminium electrolytic capacitor ke hoo e ka bang 630V. Lits'ebetsong tse phahameng tsa motlakase le matla a phahameng ka holimo ho 700V, li-capacitor tse ngata tsa electrolytic li hloka ho hokahanngoa ka letoto le ho bapisa ho finyella litlhoko tsa tšebeliso, e leng se tlisang tahlehelo e eketsehileng ea matla, litšenyehelo tsa BOM, le litaba tsa botšepehi.
Pampiri ea lipatlisiso e tsoang Univesithing ea Malaysia e bonts'a hore li-electrolytic capacitor hangata li sebelisoa sehokelong sa DC sa li-inverters tsa silicon IGBT halofo ea borokho, empa ho phahama ha motlakase ho ka etsahala ka lebaka la ho hanyetsa ho hoholo ho lekanang letoto (ESR) ea electrolytic capacitor. Ha ho bapisoa le litharollo tsa IGBT tse thehiloeng ho silicon, li-SiC MOSFET li na le maqhubu a phahameng a ho fetoha, a bakang maqhubu a phahameng a ho phahama ha motlakase ho sehokelo sa DC sa li-inverters tsa halofo tsa borokho. Sena se ka lebisa ho senyeha ha ts'ebetso ea sesebelisoa kapa esita le tšenyo, kaha maqhubu a resonant capacitor electrolytic capacitor ke 4kHz feela, a sa lekaneng ho monya ripple ea hona joale ea SiC MOSFET inverters.
Ka hona, lits'ebetsong tsa DC tse nang le litlhoko tse phahameng tsa ts'epahalo, joalo ka li-inverters tsa motlakase oa motlakase le li-inverters tsa photovoltaic, hangata li-capacitor tsa lifilimi li khethoa. Ha ho bapisoa le li-capacitor tsa aluminium electrolytic capacitor, melemo ea ts'ebetso ea tsona e kenyelletsa ho hanyetsa motlakase o phahameng, ESR e tlase, ha e na polarity, ts'ebetso e tsitsitseng haholoanyane, le nako e telele ea bophelo, e nolofalletsang moralo oa sistimi o nang le khanyetso e matla ea ripple.
Ho feta moo, ho sebelisa li-capacitor tsa lifilimi ka har'a sistimi ho ka eketsa khafetsa menyetla e phahameng, ea tahlehelo e tlase ea li-SiC MOSFET, ho fokotsa haholo boholo le boima ba likarolo tse sa sebetseng (li-inductors, li-transformer, li-capacitor) tsamaisong. Ho ea ka lipatlisiso tsa Wolfspeed, 10kW silicon-based IGBT inverter e hloka 22 aluminium electrolytic capacitor, athe 40kW SiC inverter e hloka feela li-capacitor tsa lifilimi tse 8, e leng ho fokotsa haholo sebaka sa PCB.
YMIN e Tseba Li-Capacitor tse Ncha tsa Lifilimi tse nang le Melemo e Mene e Meholo ho Tšehetsa Indasteri e Ncha ea Matla
Ho sebetsana le litlhoko tse potlakileng tsa 'maraka, YMIN e sa tsoa tsebisa MDP le MDR letoto la li-capacitor tsa lifilimi tsa tšehetso tsa DC. Ka ho sebelisa mekhoa e tsoetseng pele ea tlhahiso le lisebelisoa tsa boleng bo phahameng, li-capacitor tsena li lumellana ka ho feletseng le litlhoko tsa ts'ebetso tsa SiC MOSFETs le li-IGBT tse thehiloeng ka silicon ho tsoa ho baetapele ba lefats'e ba semiconductor ba kang Infineon.
Li-capacitor tsa lifilimi tsa YMIN's MDP le MDR li na le likarolo tse 'maloa tse hlokomelehang: khanyetso e tlase e lekanang letoto (ESR), matla a phahameng a phahameng, ho lutla ha hona joale, le botsitso bo phahameng ba mocheso.
Taba ea pele, li-capacitor tsa filimi tsa YMIN li na le moralo o tlase oa ESR, o fokotsang khatello ea motlakase nakong ea ho chencha li-SiC MOSFET le li-IGBT tse thehiloeng ho silicon, ka hona li fokotsa tahlehelo ea capacitor le ho ntlafatsa ts'ebetso ea sistimi ka kakaretso. Ho feta moo, li-capacitor tsena li na le matla a phahameng a matla a motlakase, a khonang ho mamella maemo a phahameng a motlakase le ho netefatsa ts'ebetso e tsitsitseng ea sistimi.
Letoto la MDP le MDR ea li-capacitor tsa lifilimi tsa YMIN li fana ka mefuta ea matla ea 5uF-150uF le 50uF-3000uF, le mefuta ea voltage ea 350V-1500V le 350V-2200V, ka ho latellana.
Taba ea bobeli, li-capacitor tsa morao-rao tsa YMIN li na le ho lutla ho tlase hona joale le mocheso o phahameng o tsitsitseng. Tabeng ea tsamaiso ea motlakase ea likoloi tsa motlakase, tseo ka tloaelo li nang le matla a phahameng, mocheso o hlahisoang ke mocheso o ka ama haholo nako ea bophelo le ho tšepahala ha li-capacitor tsa lifilimi. E le ho sebetsana le sena, letoto la MDP le MDR le tsoang ho YMIN le kenyelletsa lisebelisoa tsa boleng bo phahameng le mekhoa e tsoetseng pele ea tlhahiso ea ho etsa moralo o ntlafalitsoeng oa mocheso bakeng sa li-capacitor. Sena se tiisa ts'ebetso e tsitsitseng esita le libakeng tse phahameng tsa mocheso, ho thibela ho senyeha ha boleng ba capacitor kapa ho hlōleha ka lebaka la ho phahama ha mocheso. Ho feta moo, li-capacitor tsena li phela nako e telele, li fana ka tšehetso e tšepahalang haholoanyane bakeng sa litsamaiso tsa elektroniki tsa matla.
Taba ea boraro, li-capacitor tsa MDP le MDR tse tsoang ho YMIN li na le boholo bo nyane le matla a phahameng a matla. Ka mohlala, lits'ebetsong tsa motlakase tsa 800V, mokhoa oa ho sebelisa lisebelisoa tsa SiC ho fokotsa boholo ba li-capacitor le likarolo tse ling tse sa sebetseng, kahoo ho khothalletsa miniaturization ea lisebelisoa tsa elektronike. YMIN e sebelisitse theknoloji e ncha ea tlhahiso ea lifilimi, e sa eketseng feela ho kopanya tsamaiso le katleho empa hape e fokotsa boholo ba tsamaiso le boima ba 'mele, ho ntlafatsa ho khoneha le ho feto-fetoha ha lisebelisoa.
Ka kakaretso, YMIN's DC-Link film capacitor series e fana ka ntlafatso ea 30% ho bokhoni ba ho mamella dv/dt le keketseho ea 30% ea nako ea bophelo ha e bapisoa le li-capacitor tse ling 'marakeng. Sena ha se fane feela ka ho tšepahala ho molemo bakeng sa lipotoloho tsa SiC / IGBT empa hape se fana ka katleho e ntle ea litšenyehelo, ho hlōla mekoallo ea theko ea tšebeliso e atileng ea li-capacitor tsa lifilimi.
Joaloka pula-maliboho oa indasteri, YMIN e 'nile ea ameha ka ho teba lefapheng la capacitor ka lilemo tse fetang 20. Li-capacitor tsa eona tse phahameng tsa motlakase li sebelisitsoe ka mokhoa o tsitsitseng masimong a phahameng joalo ka onboard OBC, liqubu tse ncha tsa ho tjhaja matla, li-inverters tsa photovoltaic, le liroboto tsa indasteri ka lilemo tse ngata. Moloko ona o mocha oa lihlahisoa tsa filimi ea capacitor o rarolla mathata a fapa-fapaneng a ho laola mokhoa oa tlhahiso ea filimi le lisebelisoa, o phethile setifikeiti sa ho tšepahala le likhoebo tse etellang pele tsa lefats'e, 'me o fihletse kopo e kholo, e pakang ho tšepahala ha sehlahisoa ho bareki ba khōloanyane. Nakong e tlang, YMIN e tla sebelisa pokello ea nako e telele ea tekheniki ho ts'ehetsa nts'etsopele e potlakileng ea indasteri e ncha ea matla ka lihlahisoa tsa capacitor tse tšepahalang le tse theko e tlaase.
Ho fumana lintlha tse ling, ka kopo etelawww.ymin.cn.
Nako ea poso: Jul-07-2024