Muri sisitemu nshya z’ingufu zitanga ingufu, imashini ihindura amashanyarazi (PCS) ni yo shingiro ry’ingenzi mu guhindura neza ingufu za DC zitanga ingufu zitanga ingufu zikoreshwa mu miyoboro ya AC. Capacitors za filimi za YMIN, zifite imbaraga nyinshi zirwanya umuriro, igihombo gito, kandi ziramba, ni ibintu by’ingenzi mu kunoza imikorere ya inverters za PCS zitanga ingufu zitanga ingufu zitanga ingufu, bigafasha inganda zitanga ingufu zitanga ingufu kugera ku ihinduka ry’ingufu rihamye no gutanga umusaruro uhamye. Imirimo yazo y’ingenzi n’inyungu za tekiniki ni ibi bikurikira:
1. "Ikirango cyo Guhagarara k'Ubushobozi bw'Ingufu" kuri DC-Link
Mu gihe cyo guhindura AC-DC muri inverters za PCS zikoresha photovoltaic, DC bus (DC-Link) ihura n'umuvuduko mwinshi w'amashanyarazi n'izamuka ry'amashanyarazi. Capacitors za YMIN filime zitanga izi nyungu binyuze muri:
• Gufata ingufu nyinshi: Nubwo zihangana n’imbaraga nyinshi za voltage kuva kuri 500V kugeza kuri 1500V (zishobora guhindurwa), zifata ingufu z’amashanyarazi ziterwa na swichi za IGBT / SiC, zirinda ibikoresho by’amashanyarazi ibyago byo kwangirika.
• Gutunganya umuvuduko wa ESR uri hasi: ESR iri hasi (1/10 nk'iya capacitors za aluminium zisanzwe) ifata neza umuvuduko wa ripple wihuta cyane kuri DC-Link, ikagabanya igihombo cy'ingufu kandi ikanoza imikorere myiza yo guhindura ingufu.
• Ingufu zo kubika ingufu zifite ubushobozi bwinshi: Ingano nini y'ubushobozi ituma umuriro utangira gushya no gusohora vuba mu gihe cy'ihindagurika ry'amashanyarazi, bigatuma amashanyarazi ya DC bus adahindagurika kandi bigatuma PCS ikomeza gukora.
2. Uburinzi bubiri bw'ubudahangarwa bw'amashanyarazi menshi n'ubushyuhe buhamye
Sitasiyo z'amashanyarazi za PV zikunze guhura n'ahantu habi nko mu bushyuhe bwinshi n'ubushuhe bwinshi. Capacitors za filimi za YMIN zihura n'ibi bibazo binyuze mu miterere mishya:
• Imikorere ihamye mu bushyuhe bwinshi: Ubushyuhe bw'imikorere bugera kuri -40°C kugeza kuri 105°C, hamwe n'igipimo cyo kwangirika k'ubushobozi kiri munsi ya 5% mu bidukikije bifite ubushyuhe bwinshi, bikarinda igihe sisitemu idakora bitewe n'ihindagurika ry'ubushyuhe.
• Ubushobozi bw'Umuvuduko w'amashanyarazi: Ubushobozi bwo gukoresha umuvuduko w'amashanyarazi w'amashanyarazi bw'imvura buruta inshuro 10 ugereranyije n'ubushobozi bwa capacitors gakondo z'amashanyarazi, buyungurura neza urusaku rw'amashanyarazi ku muvuduko wa PV kandi bugatuma ingufu zihujwe n'umuyoboro w'amashanyarazi zujuje ibisabwa ku rwego rw'igihugu.
• Kuramba no Kutabungabunga: Hamwe n'igihe cyo kubaho cy'amasaha agera ku 100.000, kirenze cyane amasaha 30.000-50.000 ya capacitors za aluminium electrolytic, ibi bigabanya ikiguzi cyo gukoresha no kubungabunga inganda z'amashanyarazi za photovoltaic.
3. Guhuza ibikoresho bya SiC/IGBT
Uko sisitemu za photovoltaic zigenda zihinduka zigana ku muvuduko mwinshi (imiterere ya 1500V igenda ihinduka rusange), capacitors za YMIN thin-film zikorana cyane na semiconductors z'ingufu zo mu gisekuru gitaha:
• Inkunga yo Guhindura Ingufu Zikomeye: Igishushanyo mbonera cy’ingufu nke gihuye n’imiterere ya SiC MOSFETs ifite frequency nyinshi (frequency yo guhindura > 20kHz), bigabanya umubare w’ibice bidakora kandi bigafasha mu gukora buhoro kwa sisitemu za PCS (sisitemu ya 40kW ikenera capacitors 8 gusa, ugereranyije na 22 ku bisubizo bishingiye kuri silikoni).
• Guhangana na dv/dt byarushijeho kuba byiza: Bituma habaho ubushobozi bwo guhangana n’impinduka z’amashanyarazi, bikarinda kwiyongera k’amashanyarazi guterwa n’umuvuduko ukabije mu bikoresho bya SiC.
4. Agaciro k'urwego rwa sisitemu: Kunoza imikorere y'ingufu no kunoza ikiguzi
• Kongera ubushobozi bwo gukora neza: Imiterere ya ESR nke igabanya ubushyuhe butakaza, yongera imikorere ya PCS muri rusange kandi yongera cyane umusaruro w'ingufu buri mwaka.
• Kuzigama umwanya: Igishushanyo mbonera cy’ingufu nyinshi (40% bito ugereranyije na capacitors zisanzwe) gishyigikira imiterere y’ibikoresho bya PCS bito kandi kigabanya ikiguzi cyo kubishyiraho.
Umwanzuro
Capacitors za YMIN, zifite ibyiza by'ingenzi byo kwihanganira ingufu nyinshi, kuzamuka k'ubushyuhe buke, no kubungabunga nta kiguzi, zihujwe cyane mu bice by'ingenzi bya inverters za PCS zikoresha amashanyarazi, harimo DC-Link buffering, kurinda IGBT, no kuyungurura grid harmonic. Zikora nk' "umurinzi utagaragara" w'imikorere myiza kandi ihamye mu nganda zikoresha amashanyarazi zikoresha amashanyarazi. Ikoranabuhanga ryazo ntirituma gusa sisitemu zo kubika ingufu zikoresha amashanyarazi ... akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha amashanyarazi akoresha
Igihe cyo kohereza: Kanama-14-2025