Muri sisitemu nshya yingufu zifotora, guhinduranya ububiko bwamashanyarazi (PCS) ni ihuriro ryibanze ryo guhindura neza amashanyarazi ya DC mumashanyarazi ya gride AC. Imashini za firime YMIN, hamwe n’umuvuduko mwinshi wa voltage, gutakaza bike, hamwe nubuzima burebure, nibintu byingenzi byongera imikorere yimikorere ya PCS ifotora amashanyarazi, ifasha urugomero rwamashanyarazi kugera kumashanyarazi neza no gusohora neza. Ibikorwa byabo byingenzi nibyiza bya tekiniki nibi bikurikira:
1. "Umuyoboro wa Voltage Stabilisation Shield" kuri DC-Ihuza
Mugihe cyo guhindura AC-DC muburyo bwo guhinduranya amashanyarazi ya PCS, bisi ya DC (DC-Ihuza) ikoreshwa ningaruka nyinshi za pulse na spike ya voltage. Ubushobozi bwa firime YMIN butanga izi nyungu na:
• Umuvuduko mwinshi wa Surge Absorption: Hamwe n’umuvuduko mwinshi wa 500V kugeza kuri 1500V (birashobora guhindurwa), bakuramo imitwaro ya voltage yinzibacyuho itangwa na switch ya IGBT / SiC, ikarinda ibikoresho byamashanyarazi ingaruka zangirika.
• Hasi ya ESR Yoroheje: ESR yo hasi (1/10 ya capacitori ya aluminium electrolytike gakondo) ikurura neza imiyoboro yumurongo mwinshi kuri DC-Ihuza, kugabanya gutakaza ingufu no kunoza imikorere yo guhindura ingufu.
• Ububiko Bwinshi Bwububiko Bwinshi: Ubushobozi bunini butuma kwishyurwa byihuse no gusohora mugihe ihindagurika rya voltage ya gride, kugumya ingufu za bisi ya DC no gukomeza PCS ikomeza.
2. Kurinda Byombi Kurinda Umuvuduko mwinshi Kurwanya nubushyuhe buhamye
Amashanyarazi ya PV akunze guhura nibidukikije bikaze nkubushyuhe bwo hejuru nubushuhe bwinshi. Ubushobozi bwa firime YMIN buhura nibi bibazo binyuze mubishushanyo mbonera:
• Imikorere ihamye hejuru yubushyuhe bwagutse: Ubushyuhe bwo gukora butwikiriye -40 ° C kugeza kuri 105 ° C, hamwe nubushobozi bwo kwangirika kwa capacitance munsi ya 5% mubidukikije byubushyuhe bwo hejuru, bikarinda igihe cya sisitemu kubera ihindagurika ryubushyuhe.
• Ubushobozi bwa Ripple Ubushobozi: Ubushobozi bwo gukoresha ibintu burenze inshuro 10 ubw'ubushobozi bwa electrolytike gakondo, gushungura neza urusaku ruhuza umusaruro wa PV no kwemeza ko amashanyarazi ahujwe na gride yujuje ubuziranenge bwigihugu.
• Kuramba no Kubungabunga-Kubusa: Hamwe nigihe cyo kubaho cyamasaha agera ku 100.000, kirenze kure amasaha 30.000-50.000 ya capacitori ya aluminium electrolytike, ibi bigabanya imikorere nogutunganya amashanyarazi yumuriro.
3. Gukorana hamwe nibikoresho bya SiC / IGBT
Mugihe sisitemu ya Photovoltaque igenda yerekeza kuri voltage ndende (ubwubatsi bwa 1500V ihinduka nyamukuru), ubushobozi bwa YMIN yoroheje ya firime irahuza cyane nibisekuru bizakurikiraho:
• Inkunga yo Guhindura Umuvuduko mwinshi: Igishushanyo-gito-inductance gihuye numurongo mwinshi uranga SiC MOSFETs (guhinduranya inshuro> 20kHz), kugabanya umubare wibice bya pasiporo no gutanga umusanzu muri miniaturizasi ya sisitemu ya PCS (sisitemu ya 40kW isaba ubushobozi 8 gusa, ugereranije na 22 kubisubizo bishingiye kuri silikoni).
• Kunoza dv / dt Kwihanganira: Kongera imihindagurikire y’imihindagurikire y’umubyigano, birinda ihindagurika ry’amashanyarazi riterwa n’umuvuduko ukabije w’ibikoresho bya SiC.
4. Sisitemu-Urwego Agaciro: Kunoza ingufu zingirakamaro no gukoresha neza ibiciro
• Kunoza imikorere: Igishushanyo mbonera cya ESR kigabanya gutakaza ubushyuhe, kuzamura imikorere ya PCS muri rusange no kongera umusaruro wumwaka.
• Kuzigama Umwanya: Igishushanyo mbonera cyingufu (40% ntoya kurenza ubushobozi bwa gakondo) gishyigikira imiterere yibikoresho bya PCS kandi bigabanya amafaranga yo kwishyiriraho.
Umwanzuro
Ubushobozi bwa firime YMIN, hamwe nibyiza byingenzi byo kwihanganira voltage nyinshi, kuzamuka kwubushyuhe buke, no kubungabunga zeru, byinjijwe cyane mubice byingenzi byerekana amashanyarazi ya PCS, harimo DC-Link buffer, kurinda IGBT, no gushungura grid ihuza. Bakora nk "umurinzi utagaragara" wimikorere inoze kandi ihamye mumashanyarazi. Ikoranabuhanga ryabo ntirishobora gusa gukoresha uburyo bwo kubika ingufu za Photovoltaque ku "kubungabunga ubuzima bwabo bwose," ariko kandi bifasha inganda nshya z’ingufu kwihutisha kugera ku ntera ya gride no guhinduranya zero-karubone.
Igihe cyo kohereza: Kanama-14-2025