Mumakore achangopfuura, kukura kuri kuita maindasitiri matsva emagetsi akadai se photovoltaic storage nemagetsi (EVs) kwakaita kuti kudiwa kwema DC-Link capacitors kuve kwakanyanya. Muchidimbu, ma DC-Link capacitors ane basa rakakosha mudunhu. Anogona kunwisa ma pulse currents akakwira pamagumo ebhazi uye kunyorovesa voltage yebhazi, zvichiita kuti IGBT neSiC MOSFET switches dzidzivirire kubva pamigumisiro yakaipa yema high pulse currents uye transient voltages panguva yekushanda.
Sezvo voltage yemabhazi emotokari itsva ine simba ichikwira kubva pa400V kusvika pa800V, kudiwa kwemacapacitor efirimu kwakawedzera zvakanyanya. Sekureva kwedata, kugona kwakaiswa kwema inverter emagetsi akavakirwa pama capacitor eDC-Link thin-film kwakasvika mamiriyoni 5.1117 muna 2022, zvichiita 88.7% yesimba rakaiswa rekudzora magetsi. Ma drive inverter emakambani mazhinji anotungamira ekudzora magetsi akadai seTesla neNidec ese anoshandisa ma DC-Link film capacitors, ayo anokwana 82.9% yesimba rakaiswa uye ave sarudzo huru mumusika we electric drive.
Mapepa ekutsvagisa anoratidza kuti muma inverters esilicon IGBT hafu-bridge, ma capacitor emagetsi echinyakare anowanzo shandiswa mu DC link, asi kukwira kwemagetsi kunoitika nekuda kweESR yakakwira yema capacitors emagetsi. Kana tichienzanisa ne silicon-based IGBT solutions, ma SiC MOSFET ane switching frequency yakakwira, saka voltage surge amplitude mu DC link ye half-bridge inverter yakakwira, izvo zvinogona kukonzera kudzikira kwekushanda kwemudziyo kana kutokuvadzwa, uye resonant frequency yema capacitors emagetsi i4kHz chete, izvo hazvina kukwana kunwisa ripple yeSiC MOSFET inverters.
Saka, mukushandiswa kweDC senge ma inverter emagetsi uye ma inverter e photovoltaic ane zvinodiwa zvakavimbika zvakanyanya,macapacitor efirimuanowanzo sarudzwa. Kana tichienzanisa nema capacitor e aluminium electrolytic, zvakanakira mashandiro awo isimba remagetsi rakakwirira, ESR yakaderera, kusashanda zvakanaka, kushanda kwakasimba, uye hupenyu hurefu, zvichiita kuti pave nekusimba kwesimba re ripple uye dhizaini yesystem yakavimbika.
Masisitimu anoshandisa macapacitor efirimu rakatetepa anogona kushandisa mukana wekuti maSiC MOSFETs anomhanya zvakanyanya uye akaderera uye kuderedza saizi nehuremu hwezvinhu zvisingashande. Ongororo yeWolfspeed inoratidza kuti inverter ye10kW silicon-based IGBT inoda macapacitor ealuminium electrolytic makumi maviri nemaviri, nepo inverter ye40kW SiC ichingoda macapacitor masere efirimu rakatetepa, uye nzvimbo yePCB yakaderedzwawo zvakanyanya.
Mukupindura kudiwa kwemusika, YMIN Electronics yakatanga chirongwa cheMDP yakatevedzana yemacapacitor efirimu, dzinoshandisa tekinoroji yepamusoro uye zvinhu zvemhando yepamusoro kuti dzienderane neSiC MOSFET uye silicon-based IGBT. Ma capacitor eMDP series ane ESR yakaderera, voltage yakasimba, leakage current yakaderera uye kugadzikana kwekupisa kwakanyanya.
Mabhenefiti ezvigadzirwa zveYMIN Electronics zvemafirimu capacitor:
Dhizaini yeYMIN Electronics' film capacitor inoshandisa pfungwa yeESR yakaderera kuderedza kushushikana kwevoltage uye kurasikirwa nesimba panguva yekuchinja uye kuvandudza mashandiro esimba resisisitimu. Ine voltage yakakwira, inoenderana nenzvimbo dzevoltage yakakwira, uye inoita kuti sisitimu igadzikane.
Ma capacitor eMDP ane simba re1uF-500uF uye simba revoltage riri pakati pe500V kusvika 1500V. Ane simba rekudonha kwemvura shoma uye kugadzikana kwekupisa kwakanyanya. Kuburikidza nezvinhu zvemhando yepamusoro uye maitiro epamusoro, chimiro chinoshanda chekuparadza kupisa chakagadzirwa kuti chive nechokwadi chekuti kushanda kwakasimba pakupisa kwakanyanya, kuwedzera hupenyu hwebasa, uye kupa rutsigiro rwakavimbika kumasisitimu emagetsi emagetsi. Panguva imwe chete,MDP akatevedzana ma capacitordzakakura zvishoma, dzine simba rakawanda, uye dzinoshandisa nzira itsva dzekugadzira mafirimu matete kuti dzivandudze kubatanidzwa kwesystem uye kushanda kwayo, kuderedza saizi nehuremu, uye kuwedzera kutakurwa kwemidziyo uye kuchinjika kwayo.
YMIN Electronics DC-Link film capacitor series ine 30% yekuvandudzwa kwe dv/dt tolerance uye 30% yekuwedzera kwehupenyu hwebasa, izvo zvinovandudza kuvimbika kwemasekete eSiC/IGBT, zvinounza kushanda kuri nani pamutengo, uye zvinogadzirisa dambudziko remutengo.
Nguva yekutumira: Ndira-10-2025