Bhiza rakanaka rinofanira kugadzwa nechigaro chakanaka! Kuti zvinyatsobatsira zveSiC devices, zvakakoshawo kubatanidza circuit system nema capacitor akakodzera. Kubva pa main drive control mumota dzemagetsi kusvika kune ma new energy scenarios ane simba guru se photovoltaic inverters, ma film capacitors ari kutanga kushandiswa zvishoma nezvishoma, uye musika unoda zvinhu zvinodhura zvakanyanya.
Munguva pfupi yapfuura, Shanghai Yongming Electronic Co., Ltd. yakatanga maDC support film capacitors, ane mabhenefiti mana anoshamisa anoita kuti akwanise kushandiswa neInfineon's seventh-generation IGBTs. Anobatsirawo kugadzirisa matambudziko ekugadzikana, kuvimbika, miniaturization, uye mutengo mumaSiC systems.
Ma capacitor efirimu anopinda ne90% mumashandisirwo ema main drive. Sei SiC neIGBT dzichida iwo?
Mumakore achangopfuura, nekukura nekukurumidza kwemaindasitiri matsva emagetsi akadai sekuchengetedza simba, kuchaja, uye mota dzemagetsi (EVs), kudiwa kwemacapacitor eDC-Link kwave kuwedzera nekukurumidza. Zvichitaurwa zviri nyore, macapacitor eDC-Link anoshanda semabuffers mumasekete, achitora ma pulse currents akakwira kubva kumagumo ebhazi uye achigadzirisa voltage yebhazi, nokudaro achidzivirira maswichi eIGBT neSiC MOSFET kubva kuma pulse currents akakwira uye transient voltage impacts.
Kazhinji, macapacitor ealuminium electrolytic anoshandiswa mukutsigira DC. Zvisinei, nekuwedzera kwemagetsi emabhazi emotokari itsva dzesimba kubva pa400V kusvika ku800V uye masisitimu e photovoltaic achienda ku1500V uye kunyange 2000V, kudiwa kwemacapacitor efirimu kuri kuwedzera zvakanyanya.
Data rinoratidza kuti muna 2022, kugona kwakaiswa kwema-inverter emagetsi akavakirwa pama-capacitor emagetsi eDC-Link kwakasvika mamiriyoni 5.1117, zvichiita 88.7% yehuwandu hwese hwemagetsi anoshandiswa ekudzora. Makambani anotungamira ekudzora magetsi akadai seFudi Power, Tesla, Inovance Technology, Nidec, naWiran Power ese anoshandisa ma-capacitor emagetsi eDC-Link muma-inverter avo emagetsi, ane huwandu hwesimba rakaiswa hunosvika 82.9%. Izvi zvinoratidza kuti ma-capacitor emagetsi akatsiva ma-capacitor emagetsi seanonyanya kushandiswa mumusika wema-drive emagetsi.
Izvi zvinodaro nekuti simba guru rekudzivirira magetsi rema capacitor ealuminium electrolytic rinosvika 630V. Mukushandiswa kwemagetsi akawanda uye simba guru pamusoro pe700V, ma capacitor akawanda emagetsi anofanirwa kubatanidzwa akatevedzana uye akafanana kuti asvike pazvinodiwa pakushandisa, izvo zvinounza kurasikirwa kwesimba, mutengo weBOM, uye matambudziko ekuvimbika.
Pepa rekutsvagisa kubva kuYunivhesiti yeMalaysia rinoratidza kuti ma capacitor emagetsi anowanzo shandiswa muDC link yesilicon IGBT half-bridge inverters, asi voltage surges inogona kuitika nekuda kwe high equivalent series resistance (ESR) yema electrolytic capacitors. Zvichienzaniswa ne silicon-based IGBT solutions, ma SiC MOSFET ane switching frequency yakakwira, zvichikonzera high voltage surge amplitudes muDC link yema half-bridge inverters. Izvi zvinogona kukonzera kudzikira kwekushanda kwemudziyo kana kutokuvadzwa, sezvo resonant frequency yema electrolytic capacitors iri 4kHz chete, isina kukwana kunwisa current ripple yema SiC MOSFET inverters.
Saka, mumashandisirwo eDC ane zvinodiwa zvakavimbika zvakanyanya, zvakaita semagetsi anofambisa ma inverter uye photovoltaic inverters, ma capacitor efirimu anowanzo sarudzwa. Kana tichienzanisa nema capacitor e aluminium electrolytic, zvakanakira mashandiro azvo zvinosanganisira kuramba simba remagetsi, ESR yakaderera, kusava ne polarity, kushanda kwakasimba, uye hupenyu hurefu, zvichiita kuti dhizaini yesystem ive yakavimbika uye irambe yakasimba.
Pamusoro pezvo, kushandisa macapacitor efirimu musystem kunogona kushandisa kakawanda mabhenefiti eSiC MOSFETs ane frequency yakaderera, zvichideredza zvakanyanya saizi nehuremu hwezvinhu zvisingashande (inductors, transformers, capacitors) musystem. Sekureva kweWolfspeed research, inverter ye10kW silicon-based IGBT inoda macapacitor makumi maviri nemaviri ealuminium electrolytic, nepo inverter ye40kW SiC inongoda macapacitor masere chete, zvichideredza zvakanyanya nzvimbo yePCB.
YMIN Yatanga Mafirimu Matsva Ane Mabhenefiti Mana Makuru Ekutsigira Indasitiri Itsva Yesimba
Kuti igadzirise zvinodiwa pamusika nekukurumidza, YMIN ichangobva kutanga MDP neMDR series yeDC support film capacitors. Ichishandisa maitiro ekugadzira epamusoro uye zvinhu zvemhando yepamusoro, ma capacitors aya anonyatsoenderana nezvinodiwa zvekushanda zveSiC MOSFETs uye silicon-based IGBTs kubva kuvatungamiriri vepasi rose vemagetsi semiconductor vakaita saInfineon.
Ma capacitor efirimu eYMIN eMDP neMDR ane zvinhu zvakawanda zvinozivikanwa: resistance yakaderera ye equivalent series (ESR), voltage yakakwira, leakage current yakaderera, uye kugadzikana kwekupisa kwakakwira.
Chekutanga, macapacitor efirimu eYMIN ane dhizaini yakaderera yeESR, zvichideredza zvinobudirira kushushikana kwemagetsi panguva yekuchinja kweSiC MOSFETs uye silicon-based IGBTs, nokudaro zvichideredza kurasikirwa kwecapacitor uye kuvandudza kushanda zvakanaka kwesystem. Pamusoro pezvo, macapacitor aya ane voltage yakakwira, anokwanisa kutsungirira mamiriro emagetsi akakwira uye kuona kuti system inoshanda zvakanaka.
MaMDP neMDR series eYMIN film capacitors anopa capacitance ranges ye5uF-150uF uye 50uF-3000uF, uye voltage ranges ye350V-1500V uye 350V-2200V, zvichiteerana.
Chechipiri, macapacitor efirimu azvino eYMIN ane simba shoma rekubuda kwemvura uye tembiricha yakakwira. Kana iri masisitimu ekudzora magetsi emagetsi emotokari, ayo anowanzova nesimba rakawanda, kupisa kunokonzerwa kunogona kukanganisa zvakanyanya hupenyu hwemacapacitor efirimu uye kuvimbika kwayo. Kuti izvi zviitike, MDP neMDR series kubva kuYMIN zvinosanganisira zvinhu zvemhando yepamusoro uye matekiniki ekugadzira epamusoro-soro kugadzira chimiro chekupisa chakavandudzwa chemacapacitor. Izvi zvinovimbisa kushanda kwakasimba kunyangwe munzvimbo dzine tembiricha yakakwira, zvichidzivirira kudzikira kwesimba remacapacitor kana kutadza nekuda kwekuwedzera kwetembiricha. Uyezve, macapacitor aya ane hupenyu hwakareba, achipa rutsigiro rwakavimbika kune masisitimu emagetsi emagetsi.
Chechitatu, ma capacitor eMDP neMDR series anobva kuYMIN ane saizi diki uye simba rakawanda. Semuenzaniso, mumasisitimu emagetsi e800V, maitiro ndeekushandisa zvishandiso zveSiC kuderedza saizi yema capacitor nezvimwe zvinhu zvisingashande, nokudaro zvichikurudzira miniaturization yemagetsi ekudzora. YMIN yakashandisa tekinoroji yekugadzira mafirimu itsva, iyo isingangowedzere chete kubatanidzwa kwehurongwa hwese uye kushanda zvakanaka asiwo inoderedza saizi yehurongwa nehuremu, zvichiwedzera kutakurwa uye kuchinjika kwemidziyo.
Kazhinji, YMIN's DC-Link film capacitor series inopa kuvandudzwa kwe30% mukugona kwayo kutsungirira dv/dt uye kuwedzera kwe30% muhupenyu hwayo zvichienzaniswa nedzimwe film capacitors dziri pamusika. Izvi hazvingogumiri pakuvimbika kuri nani kune SiC/IGBT circuits asiwo zvinopawo kushanda kuri nani pamutengo, zvichikunda zvipingamupinyi zvemitengo mukushandiswa kwakapararira kwema film capacitors.
Semunhu anotungamira muindasitiri, YMIN yave ichibatanidzwa zvakanyanya mumunda we capacitor kwemakore anopfuura makumi maviri. Ma capacitor ayo ane voltage yepamusoro ave achishandiswa zvakatsiga muminda yepamusoro senge OBC iri mubhodhi, mapiles matsva emagetsi, ma inverter e photovoltaic, uye marobhoti emaindasitiri kwemakore mazhinji. Chizvarwa chitsva ichi chezvigadzirwa zve capacitor yemafirimu chinogadzirisa matambudziko akasiyana-siyana mukutonga kwemaitiro ekugadzira ma capacitor emafirimu uye michina, chapedza chitupa chekuvimbika nemabhizinesi epasi rose anotungamira, uye chakawana kushandiswa kwakakura, zvichiratidza kuvimbika kwechigadzirwa kuvatengi vakuru. Mune ramangwana, YMIN ichashandisa kuunganidza kwayo kwetekinoroji kwenguva refu kutsigira kukura nekukurumidza kweindasitiri itsva yesimba nezvigadzirwa zve capacitor zvinovimbika uye zvisingadhuri.
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Nguva yekutumira: Chikunguru-07-2024