Tekereza isi aho imirasire y'izuba ihurira mu bisenge by'inzu, igafata imirasire yose y'izuba mu buryo budasanzwe. Ibi si inzozi ziri kure ahubwo ni ukuri gukomeye bitewe n'uturemangingo tw'izuba twa BC. Mu magambo make, koresha uturemangingo tw'izuba, ikoranabuhanga rya BC ririmo guhindura inganda z'izuba bitewe n'imiterere yaryo igezweho n'imikorere myiza cyane. Reka turebere hamwe ibitangaza by'uturemangingo tw'izuba twa BC n'ejo hazaza hazo heza.
Igishushanyo mbonera cy'ubuhanga bw'uturemangingo tw'izuba twa BC
Uturemangingo tw’izuba twa BC, cyangwa uturemangingo tw’izuba twa Back Contact, ni icyitegererezo cy’udushya mu gushushanya mu bijyanye n’ingufu z’izuba. Tekereza ibi: ibyuma byose bihuriraho n’aho bihurira bikunze kuzinga ubuso bw’imbere bw’ituremangingo tw’izuba byimurirwa inyuma. Uku kuvugurura gukomeye gukuraho imiyoboro mibi y’urusobe rw’amazi ibuza urumuri rw’izuba, bigatuma ituremangingo twinjira mu rumuri rwose. Ingaruka zabyo ni uko ituremangingo tw’izuba twiza kandi dukora neza, dufata urumuri rwinshi rw’izuba kandi tukaruhinduramo ingufu mu buryo bunoze.
Ikoranabuhanga rya BC si iterambere ryihariye ahubwo ni intambwe y’iterambere yubakiye ku ikoranabuhanga risanzweho. Mu gufata ibintu byiza cyane ku byabanjirije ibyo no kubihuza mu buryo bushya kandi bwiza, uturemangingo tw’izuba twa BC twageze ku kunoza imikorere yabyo mu buryo butangaje.
Ubushobozi Burushaho Kubara Cyane
Ingufu ni ikintu cy’ingenzi mu ikoranabuhanga ry’izuba, kandi selile za BC zishyiraho ibipimo bishya. Selile za Perc (Passivated Emitter na Rear Cell) zikoresha uburyo bwa gakondo bwo guhindura amashanyarazi agera kuri 20-22% by’izuba, mu gihe selile za Topcon (Tunnel Oxide Passivated Contact) zishyira iyo mibare kuri 23%. Ariko selile za BC zikoresha imirasire y’izuba, ziyigeza ku rwego rwo hejuru, umusaruro wayo ugera kuri 24.5% naho umusaruro wayo ugera ku igerageza uzamuka hagati ya 27-29%. Iyi nyongera ya 2-3% ugereranije na selile za N-TOPCon zikoresha imirasire y’izuba ni impinduka ikomeye, itanga intambwe ikomeye mu ikoranabuhanga ry’izuba.
Ihuriro ry'ikoranabuhanga
Igituma ikoranabuhanga rya BC rikurura abantu cyane ni uburyo rikoresha mu buryo butandukanye. Uturemangingo tw’izuba twa BC dushobora guhuzwa n’izindi koranabuhanga zikomeye nka Perc, TOPCon, na HJT (Heterojunction Technology) kugira ngo habeho uturemangingo tw’imvange. Tekereza uburyo bishoboka: HPBC (Heterojunction with Back Contact), TBC (TOPCon with Back Contact), na HBC (Heterojunction Back Contact). Izi mvange ni nk’ibihangange by’isi y’izuba, bihuza imbaraga z’ikoranabuhanga ritandukanye kugira ngo biteze imbere imikorere myiza.
Ubwiza budasanzwe bw'uturemangingo tw'izuba twa BC
1. Umucyo w'izuba utagira imbogamizi
Imirongo y'icyuma yimuriwe inyuma, uturemangingo tw'izuba twa BC dutanga ubuso busukuye kandi butavunitse bufata urumuri rw'izuba rwinshi kandi bugahindura ingufu mu buryo bunoze.
Kongera ubushobozi bwo guhindura ibintu
Impinduka mu miterere y’ingufu zituma habaho impinduka nyinshi, bituma uturemangingo twa BC tuba amashanyarazi mu bijyanye n’ingufu zikomoka ku mirasire y’izuba.
2. Gukurura ubwiza
Kuba nta miyoboro y'amashanyarazi ireba imbere bituma BC panneaux solaires zigaragara neza kandi zihuje, bigatuma ziba amahitamo meza haba mu mazu no mu bucuruzi.
Ubwuzuzanye bw'ibinyabutabire
Ubushobozi bwo guhuza ikoranabuhanga rya BC n'ubundi buhanga bukomeye bw'izuba butuma habaho uturemangingo twinshi duhuza imikorere myiza n'imikorere myiza.
3. Kuba isoko rihari n'amahirwe meza
Muri iki gihe, uturemangingo tw’izuba twa BC turi nk’amabuye y’agaciro yihishe ku isoko rinini ry’izuba, dufite imigabane ya 0.2% gusa ugereranije na TOPCon ifite 70%. Ariko abareba inganda nka LONGi Green Energy bateganya ko hazabaho impinduka zikomeye. LONGi iteganya ko mu myaka 5-6 iri imbere, uturemangingo tw’izuba twa BC tuzazamuka tukagera ku rwego rwo hejuru, dushobora gukura Topcon ku mwanya wayo nk’ikoranabuhanga rikuru ry’izuba.
4. Ahazaza ni heza cyane hamwe n'uturemangingo tw'izuba twa BC
Selile za BC si iterambere ryihuta gusa; zigaragaza intambwe ikomeye igana imbere. Mu kugabanya igihombo cy’igicucu no kongera ubushobozi bwo guhindura imiterere y’ingufu z’izuba, ikoranabuhanga rya BC risezeranya kuvugurura imiterere y’ingufu z’izuba. Nubwo selile za BC muri iki gihe zifite isoko rito, imikorere yazo ihanitse n’ubwiza bw’ubwiza bizishyira mu bahanganye bakomeye n’ikoranabuhanga rigezweho nka Perc na Topcon.
Ubushobozi nyakuri bw'uturemangingo twa BC buri mu buryo bwo kwihuza n'ubundi buryo. Binyuze mu guhuza n'izindi koranabuhanga, uturemangingo twa BC dushobora guhinduka inganda zivanze, tugatera imbibi z'ibyo uturemangingo tw'izuba dushobora kugeraho. Uko isi igenda ihinduka igana ku ngufu zishobora kuvugururwa, uturemangingo tw'izuba twa BC twiteguye kuyobora ingufu, duhindura ibisenge by'inzu moteri zitanga ingufu nziza kandi zikora neza.
Rero, ubutaha urebye izuba, tekereza ubuhanga butagaragara bw'uturemangingo tw'izuba twa BC dukora ubutaruhuka kugira ngo dukoreshe imbaraga zaryo. Muri buri mucyo w'izuba hari isezerano ry'ejo hazaza heza kandi heza, kandi ikoranabuhanga rya BC rirahari kugira ngo rishyire mu bikorwa iryo sezerano.
