Tsarin Masana'antu da Tsarin Panel Solar Semi-Flexible da Bayani
Teburin Abubuwan Ciki
Gabatarwar Samfur
Yayin da fasahar photovoltaic ke ci gaba, wani sabon nau'in samfurin PV ya bayyana a bangaren samarwa wanda ya bambanta da na'urorin hasken rana na gilashi. Ya fi sauƙi, mai sassauƙa, kuma mafi dacewa don amfani. Wannan shi ne na'urar hasken rana mai sassauƙa, wanda galibi ake kira semi-flexible panel a masana'antar.
Semi-flexible PV modules have a wide range of applications. They cover distributed solar power scenarios such as commercial and industrial color-steel tile roofs, flat roofs, residential tile houses, and building-integrated photovoltaics (BIPV). They also fit special scenarios like landscape lighting, portable power sources, robots, and outdoor activities.
With advantages like softness and flexibility, light weight and portability, good plasticity, high efficiency, and being environmentally friendly, semi-flexible modules are gradually becoming a favorite in the new energy field, winning more and more user trust. Today let's take a simple look at the manufacturing process and structure of flexible PV modules.
Module Structure
Here is a structure diagram and promotional image of a flexible PV module found online:
We can see that the module has a 7-layer structure: ETFE + EVA + Cells (power generation layer) + EVA + PET + EVA + TPT. Below we break down the role of each layer.
Layer Functions
ETFE Front Sheet
ETFE (ethylene-tetrafluoroethylene copolymer) yana aiki a matsayin gaban takardar mai sassauƙa, wanda ya maye gurbin gilashin gargajiya. Yana bayar da babban haske watsawa (yawanci >94%), kyakkyawan juriya ga yanayi, juriya ga UV, da juriya ga lalacewar sinadarai. Yana ba da kariya ta waje ga na'urar yayin da yake tabbatar da ingantaccen watsa haske.
Fim ɗin Rufe EVA
Fim ɗin EVA (ethylene-vinyl acetate copolymer) yana da alhakin haɗawa da rufewa. Yana haɗa gaban takardar ETFE da ƙarfi zuwa layin samar da wutar lantarki, yayin da yake toshe tururin ruwa da oxygen, rage damuwa, da kare sel.
Layin Samar da Wutar Lantarki (Sel)
Sel sune babban bangaren samar da wutar lantarki na module. Suna yin canjin photoelectric, suna juya hasken rana da ke isa ga sel zuwa wutar lantarki.
EVA (Layer na Biyu)
Wannan Layer na EVA yana aiki azaman kayan rufewa, yana haɗa ɗayan gefen sel zuwa layukan da ke gaba. Aikin sa iri ɗaya ne da na EVA na sama.
Layer na Tallafi na PET
PET yawanci yana aiki azaman layer na tallafi na tsakiya ko kuma a matsayin layer na ciki na backsheet. A cikin wannan module mai sassauƙa, yana wanzuwa a matsayin layer na tsakiya, yana samar da ƙarfin injiniya, rufin wutar lantarki, da kuma wani matakin shingen tururin ruwa. Duk da haka, juriyar sa na UV da damshi-zafi yana da iyaka, don haka ya dogara da kariyar layer na waje. Wasu modules masu sassauƙa suna sanya PET sama da layer na cell.
Fim ɗin EVA (Layer na Haɗawa)
Wannan fim ɗin EVA yana haɗa layer na PET zuwa backsheet na waje (TPT), yana tabbatar da mannewa tsakanin layuka da kuma hana rabuwa.
Fim ɗin Hana Fasa
Fim ɗin anti-crack yana haɗa sel ɗin kuma yana hana ƙananan tsagewa a cikin sel ɗin lokacin da aka lanƙwasa module ɗin.
Filin Baya na TPT
TPT backsheet shine mafi bayan Layer na module ɗin. Tsarinsa shine PVF (polyvinyl fluoride) fim + PET substrate + PVF fim, inda PVF fim wani polymer ne da aka fitar daga copolymers na fluorine da fluorocarbon molecules. Dalilin da yasa ake kiran wannan tsari da TPT backsheet shine kamfanin Amurka DuPont sanannen mai samar da PVF fim ne. Alamar kasuwanci ta DuPont ga PVF fim ita ce Tedlar, wacce aka taƙaita ta a matsayin "T" a cikin tsarin backsheet, yayin da "P" ke nufin PET substrate na tsakiya.
Babban ayyukan TPT tsarin backsheet sune: fim ɗin fluorine na waje yana ba da kyakkyawan juriya ga yanayi, juriya ga UV, da juriyar lalacewar muhalli; Layer PET na tsakiya yana ba da tallafin injiniya, rufin wutar lantarki, kuma babban shingen tururin ruwa; fim ɗin fluorine na ciki yana da kyakkyawan mannewa tare da fim ɗin EVA, yana tabbatar da backsheet ɗin yana manne da tsarin rufewa da ƙarfi.
Haɓaka Ƙarfin Wutar Lantarki
Bugu da ƙari, yawancin na'urorin PV masu sassauƙa suna amfani da wani tsari na musamman don ƙirƙirar siffar zuma a saman na'urar don ƙara samar da wutar lantarki. Wannan siffar zuma tana haifar da wani 'tasirin kama haske' wanda ke ƙara yawan fitowar na'urar.
Takaitawa
Na'urorin PV masu sassauƙa suna amfani da ETFE maimakon gilashi a matsayin gaban takardar, yadudduka da yawa na EVA don haɗawa da kariya ta rufewa, PET a matsayin matsakaiciyar ƙarfafa Layer, da TPT a matsayin bayan takardar da ke jure yanayi. Tare suna ba da cikakkiyar kariya ta jiki, rufewar muhalli, da dogon lokaci ga ƙaramin Layer na samar da wutar lantarki. A lokaci guda, masana'anta suna ƙirƙirar siffar zuma a saman na'urar don inganta samar da wutar lantarki.
ooitech ta yi imani: na'urorin PV masu sassauƙa suna kunshe da ƙaramin Layer na tantanin halitta a cikin wani sandwich na ETFE-EVA-PET-TPT mai wayo don samar da wutar lantarki mai nauyi, mai dorewa, da kuma mafi yawan amfanin gona.
