Ifarashi nziza ikwiye indogobe nziza! Kugirango ukoreshe neza ibyiza byibikoresho bya SiC, birakenewe kandi guhuza sisitemu yumuzunguruko hamwe nubushobozi bukwiye. Kuva kugenzura nyamukuru kugendesha ibinyabiziga byamashanyarazi kugeza imbaraga nyinshi cyane mumashanyarazi nka fotora ya fotora, imashini za firime zigenda ziba rusange, kandi isoko ikenera byihutirwa ibicuruzwa bihenze cyane.
Vuba aha, Shanghai Yongming Electronic Co., Ltd yashyize ahagaragara imashini ifata amashusho ya DC, ifite ibyiza bine byerekana ko ibereye IGBTs ya karindwi ya Infineon. Bafasha kandi gukemura ibibazo byumutekano, kwizerwa, miniaturizasi, nigiciro muri sisitemu ya SiC.
Ubushobozi bwa firime bugera kuri 90% byinjira mubisabwa nyamukuru. Kuki SiC na IGBT babakeneye?
Mu myaka yashize, hamwe n’iterambere ryihuse ry’inganda nshya z’ingufu nko kubika ingufu, kwishyuza, n’imodoka zikoresha amashanyarazi (EV), icyifuzo cya capacitori ya DC-Link cyiyongereye vuba. Muri make, ubushobozi bwa DC-Ihuza ikora nka buffers mumuzunguruko, ikurura amashanyarazi menshi kuva kumpera ya bisi no koroshya ingufu za bisi, bityo bikarinda IGBT na SiC MOSFET guhinduranya amashanyarazi menshi ningaruka za voltage zigihe gito.
Mubisanzwe, ubushobozi bwa aluminium electrolytike ikoreshwa muri DC ifasha porogaramu. Nyamara, hamwe na bisi ya bisi yimodoka nshya yingufu yiyongera kuva 400V ikagera kuri 800V hamwe na sisitemu ya Photovoltaque igenda yerekeza kuri 1500V ndetse no muri 2000V, icyifuzo cya capacitori ya firime kiriyongera cyane.
Imibare irerekana ko mu 2022, ubushobozi bwashyizweho bwamashanyarazi ya moteri ishingiye kuri capacitori ya firime ya DC-Link yageze kuri miliyoni 5.1117, bingana na 88.7% byubushobozi bwashizweho bwo kugenzura ibikoresho bya elegitoroniki. Amasosiyete akomeye yo kugenzura ibikoresho bya elegitoronike nka Fudi Power, Tesla, Ikoranabuhanga rya Inovance, Nidec, na Wiran Power byose bifashisha imashini za firime za DC-Link muri disikuru zabo, hamwe n’ubushobozi bwashyizwe hamwe bugera kuri 82.9%. Ibi byerekana ko ubushobozi bwa firime bwasimbuye amashanyarazi ya electrolytike nkibisanzwe mumasoko yo gutwara amashanyarazi.
Ni ukubera ko imbaraga za voltage ntarengwa ya aluminium electrolytike capacator igera kuri 630V. Muri voltage nyinshi hamwe nimbaraga zikoreshwa hejuru ya 700V, capacator nyinshi za electrolytique zigomba guhuzwa murukurikirane kandi bigereranywa kugirango zuzuze ibisabwa zikoreshwa, bizana igihombo cyingufu, ikiguzi cya BOM, nibibazo byokwizerwa.
Urupapuro rw’ubushakashatsi rwaturutse muri kaminuza ya Maleziya rwerekana ko ubushobozi bwa electrolytike bukoreshwa mu buryo bwa DC mu guhuza DC ya silicon IGBT igice cy’ikiraro cya kiraro, ariko umuvuduko wa voltage urashobora kubaho bitewe n’uruhererekane rukomeye rwo kurwanya (ESR) rw’ubushobozi bwa electrolytike. Ugereranije na silicon ishingiye kuri IGBT ibisubizo, SiC MOSFETs ifite inshuro nyinshi zo guhinduranya, bigatuma habaho umuvuduko mwinshi wa voltage amplitude muri DC ihuza igice cya kiraro gihindura. Ibi birashobora gutuma imikorere yibikoresho byangirika cyangwa bikangirika, kuko inshuro ya resonant ya capacitori ya electrolytike ni 4kHz gusa, ntibihagije kugirango ikureho impinduramatwara ya SiC MOSFET inverters.
Kubwibyo, muri porogaramu za DC zifite ibyangombwa bisabwa byizewe, nka inverteri yumuriro wamashanyarazi na inverteri ya fotovoltaque, ubushobozi bwa firime burahitamo. Ugereranije na capacitori ya aluminium electrolytike, inyungu zayo zirimo imbaraga zo guhangana n’umuvuduko mwinshi, ESR yo hepfo, nta polarite, imikorere ihamye, hamwe nigihe kirekire cyo kubaho, bigatuma sisitemu yizewe yizewe hamwe nimbaraga zikomeye.
Byongeye kandi, gukoresha ubushobozi bwa firime muri sisitemu birashobora gukoresha inshuro nyinshi ibyiza-byo gutakaza-bike bya SiC MOSFETs, bikagabanya cyane ubunini nuburemere bwibice bya pasiporo (inductors, transformateur, capacator) muri sisitemu. Nk’uko ubushakashatsi bwa Wolfspeed bubitangaza, inverter ya 10GB ya silicon ishingiye kuri IGBT isaba imashini 22 za aluminium electrolytike, mu gihe inverter ya 40kW SiC ikenera gusa imashini 8 za firime, bikagabanya cyane PCB.
YMIN Yatangije ubushobozi bwa firime nshya hamwe nibyiza bine byingenzi byo gushyigikira inganda nshya
Kugira ngo ikibazo cyihutirwa gikenewe ku isoko, YMIN iherutse gushyira ahagaragara MDP na MDR ikurikirana ya DC ifasha ubushobozi bwa firime. Ukoresheje uburyo bugezweho bwo gukora hamwe nibikoresho byujuje ubuziranenge, izi capacator zirahuza neza nibisabwa na SiC MOSFETs hamwe na IGBTs ishingiye kuri silicon uhereye kubayobozi bayobora amashanyarazi yisi yose nka Infineon.
Ububiko bwa firime ya MDP na MDR ya YMIN bifite ibintu byinshi bigaragara: birwanya urukurikirane rwo hasi rwirwanya (ESR), imbaraga za voltage nyinshi, umuvuduko ukabije, hamwe nubushyuhe bwo hejuru.
Ubwa mbere, ubushobozi bwa firime YMIN bugaragaza igishushanyo mbonera cya ESR, bikagabanya neza imbaraga za voltage mugihe cyo guhinduranya SiC MOSFETs na IGBTs ishingiye kuri silicon, bityo bikagabanya igihombo cya capacitori no kunoza imikorere muri sisitemu. Byongeye kandi, izo capacator zifite voltage ihanitse cyane, ishoboye guhangana nubushyuhe bwo hejuru kandi ikanakora imikorere ihamye ya sisitemu.
Urutonde rwa MDP na MDR rwa capacitori ya YMIN itanga ubushobozi bwa 5uF-150uF na 50uF-3000uF, hamwe na voltage ya 350V-1500V na 350V-2200V.
Icya kabiri, ubushobozi bwa firime YMIN iheruka ifite umuvuduko muke hamwe nubushyuhe bwo hejuru. Kubijyanye na sisitemu yo kugenzura ibinyabiziga byamashanyarazi, mubisanzwe bifite imbaraga nyinshi, kubyara ubushyuhe birashobora kugira ingaruka zikomeye kumibereho no kwizerwa bya capacator. Kugira ngo iki kibazo gikemuke, urutonde rwa MDP na MDR kuva YMIN rurimo ibikoresho byo mu rwego rwo hejuru hamwe n’ubuhanga buhanitse bwo gukora kugirango hategurwe imiterere yubushyuhe bwa capacitori. Ibi bituma imikorere ihamye ndetse no mubushyuhe bwo hejuru cyane, birinda ubushobozi bwa capacitori kwangirika cyangwa kunanirwa kubera ubushyuhe bwiyongera. Byongeye kandi, izo capacator zifite igihe kirekire cyo kubaho, zitanga inkunga yizewe ya sisitemu ya elegitoroniki.
Icya gatatu, ubushobozi bwa seriveri ya MDP na MDR kuva YMIN biranga ubunini buto nubucucike bukabije. Kurugero, muri 800V sisitemu yo gutwara amashanyarazi, icyerekezo ni ugukoresha ibikoresho bya SiC kugirango ugabanye ingano ya capacator nibindi bikoresho bya pasiporo, bityo bigateza imbere miniaturizasi yubugenzuzi bwa elegitoroniki. YMIN yakoresheje tekinoroji yo gukora firime yubuhanga, ntabwo yongerera gusa sisitemu rusange no gukora neza ahubwo inagabanya ubunini bwa sisitemu nuburemere, byongera ubworoherane bwibikoresho.
Muri rusange, YMIN ya firime ya DC-Ihuza ya firime itanga iterambere rya 30% mubushobozi bwa dv / dt kwihanganira no kwiyongera kwa 30% mugihe ugereranije nubundi bushobozi bwa firime ku isoko. Ibi ntibitanga gusa kwizerwa kumuzunguruko wa SiC / IGBT ahubwo binatanga uburyo bwiza-buhendutse, gutsinda inzitizi zibiciro mugukoresha kwinshi kwa firime.
Nkumupayiniya winganda, YMIN imaze imyaka isaga 20 igira uruhare runini mubushobozi bwa capacitor. Imashanyarazi ifite ingufu nyinshi zashyizwe mu bikorwa mu buryo buhanitse nko mu bwato bwa OBC, ibirundo bishya byo kwishyiriraho ingufu, imashini ifotora, hamwe na robo y’inganda mu myaka myinshi. Iki gisekuru gishya cyibicuruzwa bya firime bikemura ibibazo bitandukanye mubikorwa byo kugenzura no gutunganya ibikoresho bya firime, byujuje ibyemezo byizewe hamwe ninganda zikomeye ku isi, kandi bigera ku bikorwa binini, byerekana ko ibicuruzwa byizewe kubakiriya benshi. Mu bihe biri imbere, YMIN izakoresha uburyo bwayo bwa tekinike mu gihe kirekire kugira ngo ishyigikire iterambere ryihuse ry’inganda nshya zifite ingufu kandi zizewe kandi zihendutse cyane.
Kubindi bisobanuro, nyamuneka surawww.ymin.cn.
Igihe cyo kohereza: Nyakanga-07-2024