Ifarashi nziza ikwiye intebe nziza! Kugira ngo ikoreshe neza ibyiza by'ibikoresho bya SiC, ni ngombwa kandi guhuza sisitemu y'uruziga n'ibikoresho bya capacitor bikwiye. Kuva ku igenzura nyamukuru ry'imodoka zikoresha amashanyarazi kugeza ku ngufu nshya zikoresha ingufu nyinshi nka inverters za photovoltaic, capacitors za filime zigenda zirushaho kuba ingenzi, kandi isoko rikeneye byihutirwa ibikoresho bihendutse.
Vuba aha, Shanghai Yongming Electronic Co., Ltd. yatangije capacitors za DC support film, zifite ibyiza bine bitangaje bituma zikoreshwa muri IGBTs za Infineon zo mu gisekuru cya karindwi. Zifasha kandi gukemura ibibazo byo kudahungabana, kwizerwa, miniaturization, n'ikiguzi cya sisitemu za SiC.
Capacitors za filime zigera hafi kuri 90% mu bikorwa bya disiki nkuru. Kuki SiC na IGBT bazikeneye?
Mu myaka ya vuba aha, bitewe n’iterambere ryihuse ry’inganda nshya z’ingufu nko kubika ingufu, gusharija, n’imodoka zikoresha amashanyarazi (EVs), icyifuzo cya capacitors za DC-Link cyakomeje kwiyongera cyane. Muri make, capacitors za DC-Link zikora nk’ibice bifasha mu miyoboro y’amashanyarazi, zikingura imiyoboro myinshi y’amashanyarazi iva ku mpera ya bisi kandi zigatunganya voltage ya bisi, bityo zikarinda switches za IGBT na SiC MOSFET ku miyoboro myinshi y’amashanyarazi n’ingaruka za voltage y’igihe gito.
Ubusanzwe, capacitors za aluminium electrolytic zikoreshwa mu bikorwa byo gushyigikira DC. Ariko, bitewe n'uko voltage ya bisi y'imodoka nshya zikoresha ingufu yiyongera kuva kuri 400V ikagera kuri 800V ndetse na sisitemu za photovoltaic zigenda zigera kuri 1500V ndetse na 2000V, icyifuzo cya capacitors za filime kiriyongera cyane.
Amakuru agaragaza ko mu 2022, ubushobozi bwashyizweho bwa inverters zitwara amashanyarazi zishingiye kuri capacitors za DC-Link bwageze kuri miliyoni 5.1117, bungana na 88.7% by'ubushobozi bwose bwashyizweho bwa controls za elegitoroniki. Ibigo bikomeye bigenzura ikoranabuhanga nka Fudi Power, Tesla, Inovance Technology, Nidec, na Wiran Power byose bikoresha capacitors za DC-Link muri drivers zabo, hamwe n'ubushobozi bwashyizweho bugera kuri 82.9%. Ibi bigaragaza ko capacitors za filime zasimbuye capacitors za electrolytic nk'ikintu cy'ingenzi ku isoko rya electrical drives.
Ibi biterwa nuko imbaraga ntarengwa zo kurwanya ingufu za capacitors za aluminium electrolytic zingana na 630V. Mu mikoreshereze y’amashanyarazi menshi n’ingufu nyinshi zirenze 700V, capacitors nyinshi za electrolytic zigomba guhuzwa mu buryo bukurikiranye kandi bungana kugira ngo zihuze n’ibisabwa mu mikoreshereze, ibyo bikaba bitera igihombo cy’ingufu, ikiguzi cya BOM, n’ibibazo by’ubwirinzi.
Inyandiko y'ubushakashatsi yavuye muri Kaminuza ya Maleziya igaragaza ko capacitors za electrolytic zikoreshwa mu buryo busanzwe mu muyoboro wa DC wa silicon IGBT half-bridge inverters, ariko kwiyongera k'umuvuduko w'amashanyarazi bishobora kubaho bitewe n'ubudahangarwa bw'amashanyarazi bungana na ESR (ESR) bwa capacitors za electrolytic. Ugereranyije n'ibisubizo bya IGBT bishingiye kuri silicon, SiC MOSFET zifite umuvuduko wo guhinduranya amashanyarazi mwinshi, bigatuma ingufu nyinshi za voltage ziyongera mu muyoboro wa DC wa half-bridge inverters. Ibi bishobora gutuma imikorere y'ibikoresho igabanuka cyangwa ndetse no kwangirika, kuko umuvuduko wa resonant wa capacitors za electrolytic ari 4kHz gusa, udahagije kugira ngo winjize umuvuduko w'amashanyarazi wa SiC MOSFET inverters.
Kubwibyo, mu bikorwa bya DC bifite ibisabwa byizewe cyane, nka inverters zikoresha amashanyarazi na inverters za photovoltaic, capacitors za filime zikunze gutorwa. Ugereranyije na capacitors za aluminium electrolytic, ibyiza byazo birimo imbaraga nyinshi zo kurwanya amashanyarazi, ESR nke, nta polarity, imikorere ihamye, no kuramba igihe kirekire, bigatuma imiterere ya sisitemu yizewe kandi irangwa no kurwanya cyane amajwi.
Byongeye kandi, gukoresha capacitors za filime muri sisitemu bishobora gukoresha inshuro nyinshi ibyiza bya SiC MOSFETs bifite frequency nyinshi kandi bike, bigabanya cyane ingano n'uburemere bw'ibice bidakora (inductors, transformers, capacitors) muri sisitemu. Dukurikije ubushakashatsi bwa Wolfspeed, inverter ya IGBT ishingiye kuri silicon ya 10kW ikenera capacitors 22 za aluminium electrolytic, mu gihe inverter ya SiC ya 40kW ikeneye capacitors 8 za filime gusa, bigabanya cyane ubuso bwa PCB.
YMIN yatangije ibikoresho bishya byo gupima filime bifite inyungu enye zikomeye zo gushyigikira inganda nshya z'ingufu
Kugira ngo hakemurwe ibibazo byihutirwa ku isoko, YMIN iherutse gutangiza uruhererekane rwa MDP na MDR rwa capacitors za filimi zifasha DC. Zikoresheje uburyo bugezweho bwo gukora n'ibikoresho byiza, izi capacitors zihuye neza n'ibisabwa mu mikorere ya SiC MOSFETs na IGBTs zishingiye kuri silicon zikomoka ku bayobozi ba semiconductors ku isi nka Infineon.
Capacitors za YMIN za MDP na MDR zifite ibintu byinshi bizwi: uburinzi buke bw’uruhererekane (ESR), voltage iri hejuru, umuvuduko wo kuvogera ugabanuka, n’ubushyuhe buri hejuru.
Ubwa mbere, capacitors za filimi za YMIN zifite imiterere mike ya ESR, bigabanya neza imbaraga z'amashanyarazi mu gihe cyo guhinduranya SiC MOSFET na IGBT zishingiye kuri silicon, bityo bigabanya igihombo cya capacitors no kunoza imikorere myiza ya sisitemu muri rusange. Byongeye kandi, izi capacitors zifite ingufu nyinshi, zishobora kwihanganira imiterere y'amashanyarazi menshi no kwemeza ko sisitemu ikora neza.
Uruhererekane rwa MDP na MDR rwa capacitors za filimi za YMIN rutanga ubushobozi bwa 5uF-150uF na 50uF-3000uF, hamwe n'ubushobozi bwa volteji bwa 350V-1500V na 350V-2200V, uko bikurikirana.
Icya kabiri, capacitors zigezweho za YMIN zifite umuvuduko muto wo gusohoka kw'amashanyarazi n'ubushyuhe bwinshi. Ku bijyanye na sisitemu zo kugenzura amashanyarazi zikoresha amashanyarazi, ubusanzwe zifite ingufu nyinshi, ubushyuhe buvamo bushobora kugira ingaruka zikomeye ku buzima no ku kwizerwa kwa capacitors za firime. Kugira ngo ibi bikemuke, MDP na MDR series bya YMIN bikoresha ibikoresho byiza n'ubuhanga buhanitse bwo gukora kugira ngo habeho imiterere myiza y'ubushyuhe bwa capacitors. Ibi bituma habaho imikorere ihamye ndetse no mu bidukikije birimo ubushyuhe bwinshi, bikarinda kwangirika cyangwa gutsindwa kwa capacitors bitewe n'izamuka ry'ubushyuhe. Byongeye kandi, izi capacitors zifite igihe kirekire cyo kubaho, zitanga ubufasha bwizewe kuri sisitemu z'amashanyarazi zikoresha amashanyarazi.
Icya gatatu, capacitors za MDP na MDR zo muri YMIN zifite ingano ntoya kandi zifite imbaraga nyinshi. Urugero, muri sisitemu z'amashanyarazi za 800V, intego ni ugukoresha ibikoresho bya SiC kugira ngo bigabanye ingano ya capacitors n'ibindi bice bidakora, bityo bigateza imbere uburyo bwo kugenzura ikoranabuhanga. YMIN yakoresheje ikoranabuhanga rigezweho ryo gukora filime, rituma sisitemu yose ihuzwa kandi ikanagabanya ingano n'uburemere bya sisitemu, rikongera ubushobozi bwo gutwara no koroshya imikorere y'ibikoresho.
Muri rusange, uruhererekane rwa DC-Link rwa YMIN rutanga iterambere rya 30% mu bushobozi bwo kwihanganira dv/dt ndetse n’ubwiyongere bwa 30% mu gihe cy’ubuzima ugereranije n’izindi capacitors za filime ziri ku isoko. Ibi ntibitanga gusa icyizere cyiza ku miyoboro ya SiC/IGBT ahubwo binatanga uburyo bworoshye bwo kugabanya ibiciro, birenga inzitizi z’ibiciro mu ikoreshwa rya capacitors za filime.
Nk’umuntu watangije inganda, YMIN imaze imyaka irenga 20 ikora cyane mu bijyanye na capacitor. Capacitor zayo zifite ingufu nyinshi zakoreshejwe mu buryo buhamye mu nzego zigezweho nka OBC, imiyoboro mishya yo gushyushya ingufu, inverters za photovoltaic, na robots zo mu nganda. Iki gisekuru gishya cy’ibicuruzwa bya capacitor bya filime gikemura ibibazo bitandukanye mu kugenzura no gukoresha ibikoresho bya capacitor ya filime, cyarangije icyemezo cy’ubwizerwe n’ibigo bikomeye ku isi, kandi kigera ku ikoreshwa rinini, bigaragaza ko iki gicuruzwa cyizewe ku bakiriya benshi. Mu gihe kizaza, YMIN izakoresha ikoranabuhanga ryayo rirambye kugira ngo ishyigikire iterambere ryihuse ry’inganda nshya z’ingufu hamwe n’ibicuruzwa bya capacitor byizewe cyane kandi bihendutse.
Kugira ngo umenye byinshi, surawww.ymin.cn.
Igihe cyo kohereza: Nyakanga-07-2024