Fotovoltaik modullarning hayot aylanishi davomida yuqori samaradorligi va ishonchliligi fotovoltaik energiya ishlab chiqarish sifatining ikkita muhim belgisidir. Uzoq vaqt davomida Trina Solar fotovoltaik modullarning sifati manbasidan boshladi - asosiy materiallar, materiallarning ekologik chidamliligini baholash ob'ekti sifatida olib, yuqori o'tkazuvchanlik, yuqori qarshilik va yuqori ob-havoga chidamli materiallarni tanlash, va fotovoltaik modullarning hayotiy tsikli holatida ishlashiga e'tibor berish.
01
Fotovoltaik lenta
Fotovoltaik payvandlash tasmasi
Fotovoltaik lenta (qalay{0}}qoplangan mis lenta): U asosan oʻzaro bogʻlovchi tasma va avtobus tasmasiga boʻlinadi. O'zaro bog'lovchi chiziqlar, asosan, elektr tokini o'tkazish va hujayra oqimini yig'ish uchun fotovoltaik modul xujayralari orasidagi ulanishda ishlatiladi; birlashma qutisi ichida.
Payvandlash chizig'ining qarshiligi: asosan payvandlash chizig'ining o'lchami va mis substratning materiali bilan belgilanadi.
Ip tufayli muvaffaqiyatsizlik:
①Virtual soldering and over-soldering: Too low soldering temperature, uneven application of flux and many other reasons can lead to false soldering, while too high soldering temperature or too long soldering time can lead to over-soldering. False welding will cause the welding tape to separate from the cell during the actual use of the module, and the power of the module will be attenuated.
② Welding ribbon offset: Due to the abnormal positioning of the welding machine, the contact between the welding ribbon and the battery area is reduced, and delamination, power attenuation and other phenomena occur. With the increase of the busbars of the battery, the width (diameter) of the welding strip is getting narrower and narrower, which requires higher positioning accuracy of the welding machine.
02
Birlashma qutisi
Fotovoltaik aloqa qutilari
Birlashma qutisining vazifasi: oqimni uzatish uchun fotovoltaik modulga o'rnatiladi. Oddiy foydalanish paytida u tashqi muhit ta'sirini va ulanish qutisi ichidagi jonli tanaga tegishi mumkin bo'lgan zararni oldini olish uchun tegishli himoyaga ega.
Ishlash talablari: Yaxshi elektr ko'rsatkichlariga ega bo'lgan holda, ulanish qutisining dizayni va o'lchami foydalanish muhitining talablariga javob berishi kerak, jumladan: elektr, mexanik, issiqlikka chidamlilik, korroziyaga chidamlilik va ob-havoga qarshilik. Shu bilan birga, u foydalanuvchilarga va atrof-muhitga zarar etkazmasligi kerak.
Aqlli ulanish qutisi: an'anaviy modul birlashma qutisining ichki sxemasi shinalar va diodlardan iborat bo'lib, elektron platalar kabi boshqa elektron komponentlar mavjud emas. Fotovoltaik tizimlarning MPPT kuzatuvi invertorlar yoki kontrollerlar tomonidan amalga oshiriladi. Aqlli komponent shundan iboratki, bosilgan elektron plata yoki tegishli elektron komponentlar komponentga birlashtirilgan va komponent-darajasini optimallashtirish, aniqlash va boshqarishga erishish uchun ulanish qutisi ichiga birlashtirilgan. Aqlli komponentlar passiv boshqaruvdan faol boshqaruvga o‘tish imkonini beradi.
03
Alyuminiy qotishma ramka
Alyuminiy qotishma ramka
Alyuminiy ramkaning roli: Birinchidan, oynaning chetini himoya qilish uchun; Ikkinchidan, modulning muhrlanish ish faoliyatini kuchaytirish uchun silika jeli bilan birlashtirilgan alyuminiy qotishmasi; Uchinchidan, modulning umumiy mexanik kuchini sezilarli darajada yaxshilang; To'rtinchidan, modulni o'rnatish va tashishni osonlashtirish; To'rtinchidan, modulni olib o'tish uchun Qavsga ega bo'lgan bog'lovchi tashuvchi qurilmani mahkamlashdan tortib integratsiyaga qadar, elektr stansiyasi tizimining mexanik quvvatini oshirishgacha, mahkamlash orqali eng yaxshi yuk tashish qobiliyatiga- erisha oladi.
Hozirgi vaqtda alyuminiy ramka materiallari 6063-T5 va 6005-T6 xususiyatlari bo'yicha tadqiqotlar: T5 eritma bilan ishlov berish va to'liq bo'lmagan sun'iy qarishni anglatadi / T6 eritma bilan ishlov berish va to'liq sun'iy qarishni anglatadi.
①Solid solution treatment: It refers to the heat treatment process in which the alloy is heated to a high temperature single-phase region and maintained at a constant temperature, so that the excess phase is fully dissolved into the solid solution and then rapidly cooled to obtain a supersaturated solid solution.
②Incomplete artificial aging: Use a relatively low aging temperature or a short holding time to obtain excellent comprehensive mechanical properties, that is, to obtain relatively high strength, good plasticity and toughness, but the corrosion resistance may be relatively low.
③Complete artificial aging: Using a higher aging temperature and a longer holding time, the maximum hardness and the highest tensile strength are obtained, but the elongation is low.
Ishlab chiqarish jarayonida T6 tipidagi alyuminiy qotishmasi yuqori haroratli ekstruziya natijasida hosil bo'ladi va eritma issiqlik bilan ishlov berishdan (söndürme) keyin sun'iy qarish holati suvni sovutishdir, T5 tipidagi alyuminiy qotishmasi yuqori haroratli ekstruziya hosil qilish jarayonida sovutiladi, va keyin sun'iy qari havo sovutish hisoblanadi. Ikki sovutish usuli bilan solishtirganda, T6 suvini sovutishdan keyin profilning qattiqligi yuqori bo'ladi, lekin profilning plastisitivligi va qattiqligi ta'sir qiladi.
At present, my country's photovoltaic industry ranks among the top in the world in terms of manufacturing scale, industrialization technology level, application market expansion, and industrial system construction. However, the photovoltaic industry is developing rapidly, especially the technological progress is extremely rapid, and the industry is in a period of rapid change. High-quality auxiliary materials for photovoltaic modules are an important guarantee for the high efficiency and reliability of modules, and should be paid more attention by the industry. At the same time, how to achieve high efficiency and low cost on the premise of ensuring the life and reliability of photovoltaic modules, and the cost reduction and efficiency increase of auxiliary materials are also crucial.