Fahimtar Quarter-Cut Solar Modules: Fa'idar Tattalin Wutar Lantarki da Rikice-rikicen Boye, Bayanin I² Loss
Teburin Abubuwan Ciki
Gabatarwa
Duk wanda ke aiki a PV ya san cewa sel da aka yanka rabin sun riga sun zama ruwan dare gama gari. Yanke kwata, mataki na gaba, ana tallata shi a matsayin "ƙananan asarar layi, mafi girman fitarwa." Amma yawancin mutane sun san da'awar ne kawai, ba dalilin da ke bayanta ba. A ina ne ainihin sel da aka yanka kwata ke rage asararsa? Kuma idan ƙananan guntuwa suna nufin ƙananan halin yanzu, me yasa masana'antar ba ta yanka zuwa guntu 16 ko 32 ba? Bari mu bar ƙididdiga masu yawa kuma mu yi amfani da kwatance masu sauƙi don fahimtar tunanin da ke tattare da shi, ribar, da kuma rashin lahani na PV da aka yanka kwata a lokaci guda.
Ƙa'ida ta Asali: Dokar Murabba'in Halin Yanzu Bayan Yanke Sel
Duk lokacin da halin yanzu ke gudana ta hanyar madugu na PV (ribbon, busbar, gridline), asara ba makawa. Tsarin asarar wutar lantarki shine:
P = I²R (asarar wutar lantarki = murabba'in halin yanzu × juriya)
Murabba'in shine ainihin abin nan. Asara da halin yanzu ba sa tafiya tare a layi madaidaiciya. Ƙananan raguwa a halin yanzu yana kawo babban raguwa a asara.
1. Cikakken sel → rabin sel (module da aka yanka rabin)
Halin yanzu a kowane guntu ya ragu zuwa 1/2 na asali, don haka asara = (1/2)² = 1/4. Asarar layi ta faɗi da kashi 75% kai tsaye. Wannan shine ainihin dalilin da yasa modules da aka yanka rabin suka mamaye.
2. Rabin da aka yanka ya haɓaka zuwa yanke kwata
Yanzu kowane yanki yana raguwa zuwa 1/4 na girman tantanin halitta na asali, don haka asara = (1/4)² = 1/16. Idan aka kwatanta da tantanin halitta cikakke, asarar ciki ta ragu da fiye da 90%. Idan aka kwatanta da rabin yankakken tsari, asarar ta sake raguwa sosai.
Yanke yana kawo fa'ida kuma. Ƙananan sel suna nufin ana iya yin ribbon ɗin da ya dace ya zama sirara. Siraran ribbon yana rufe ƙasa da fuskar tantanin halitta, don haka asarar inuwa tana raguwa, tantanin halitta yana ɗaukar haske da yawa, kuma fitarwa ta ɗan ƙara hawa.
A wannan lokacin mutane da yawa suna tambaya: idan ƙananan yanki suna nufin ƙaramin halin yanzu da ƙarancin asara, me yasa masana'antar ba ta yanke sel zuwa 16, 32, har ma da 64 yanki?
Amsar a bayyane take: yawan yanke ba koyaushe yake da kyau ba. Yanke kwata yana ɗauke da farashi da asarar da ba za ku iya watsi da su ba.
Ganin Shi: A Ina Ake Rage Asarar Layi?
Mutane da yawa sun san cewa yanke kwata yana da ƙarancin asarar layi, amma ba za su iya nuna inda raguwar take ba. Ka yi tunanin hanyar halin yanzu kamar ruwa yana gangarowa ƙasa, sai komai ya fahimta.
Wutar da aka samar da haske tana kama da ruwan sama da ke sauka daga kan dutse. Hanyar gaba daya tana bi ta matakai 5: PN junction → finger gridline (rafi) → busbar gridline (karamin kogi) → ribbon (babban kogi) → busbar (babban kogi). Kowane yanki yana haifar da asara.
1. Bangaren da ba ya canzawa: asarar gridline
Ko da yaya yawan guntuwar tantanin halitta, jimillar hasken da ke buga raka'a na yankin tantanin halitta ya kasance iri daya. Gudun wutar da sauri a cikin gridlines ba sa canzawa, don haka asarar finger da busbar gridline ba ta raguwa.
2. Bangaren da ke raguwa sosai: ribbon tsakanin tantanin halitta
Tantin halitta cikakke: wutar daga tantanin halitta gaba daya tana shiga cikin ribbon guda daya, wutar tana da yawa kuma asara tana da yawa.
Tantin halitta da aka yanka kwata: kashi 1/4 na wutar yankin tantanin halitta ne kawai ke gudana ta kowane ribbon, don haka wutar ribbon ta ragu sosai.
Bayanan masana'antu sun nuna asarar ribbon tana da kashi 60% na jimillar asarar cikin gida na module. Ta hanyar yanke wutar ribbon, kwata-kwata yana adana babban kaso na wannan asarar wutar.
Rashin da aka boye: Asarar Busbar Tana Cinye Ribar
Ribbon loss yana raguwa sosai, wanda yake kama da duk abin da ke sama. Amma quarter-cut yana buƙatar sake tsara tsarin kewayawa, kuma hakan yana kawo rashin fa'ida biyu.
1. Tsawon busbar yana tashi sama
Wani module na quarter-cut yana buƙatar ƙarin busbars. Jimlar tsawon busbar yana girma daga mita 3.4 zuwa mita 8, kusan ninki biyu, kuma farashin kayan aiki yana tashi tare da shi.
2. Sabon asarar busbar yana soke wani ɓangare na riba
Asarar busbar tana da kashi 20% na jimlar asarar module. Da zarar an tsawaita, jimlar asarar layin busbar ta haura da kashi 50%.
Lissafi mai sauri: kusan kashi 40% na abin da quarter-cut ke ceto akan ribbon ana mayar da shi ta hanyar ƙarin asarar busbar. Sakamakon fitarwa na gaske ya zama ƙasa da ban mamaki fiye da yadda ka'idar ke nunawa.
Ra'ayin Masana'antu: Shin Quarter-Cut Ya Canza Aiwatarwa?
Ga cikakken fa'ida da rashin fa'ida na modules na quarter-cut:
Fa'idodi
Yin amfani da dokar murabba'in halin yanzu, asarar layin ribbon tana raguwa sosai, don haka fitarwa na ka'ida ya fi na cikakken cell da modules na half-cut.
Yana haɗuwa da ribbon mai sirara don yanke shading na gaba da haɓaka yankin karɓar haske na cell.
Rashin fa'ida
Canjin shimfidar da'ira, amfani da busbar da tsawonsa ya ninka, kuma farashin kayan aiki ya tashi.
Sabon asarar busbar ya rage yawancin tanadin wutar lantarki, don haka ainihin ribar ta iyakance.
Babu yanke mara iyaka: yawan yanke, yawan rikitarwar layukan grid, wuraren haɗin solder, da tsarin busbar, kuma ƙarin asara da farashin kera suna wuce tanadin da sauri.
Mu Yi Magana
Quarter-cut mataki ne na ci gaba daga half-cut. Rage asarar ka'ida yana da kyau, amma farashin busbar da ƙarin asara suna sanya iyaka ga ainihin ribar. A cikin rarraba PV da manyan tsire-tsire na ƙasa, kuna ganin quarter-cut modules suna da amfani? Saka ra'ayoyinku a ƙasa.
#SolarTech #QuarterCutModule #PVLineLoss
Ra'ayin Ooitech
Abin da wannan ke nuna shi ne cewa ribar module tana rayuwa ko mutuwa a matakin haɗin kai, ba kawai a cikin cell ba. Lokacin da kuke tsara faɗin ribbon da hanyar busbar akan layin quarter-cut, daidaiton tabber-stringer da layup suna yanke shawara ko kuna samun wannan tanadin I² ko kuma ku mayar da shi ta hanyar busbar masu tsayi. Mun ga wannan a kan layin module na Ooitech, inda ƙirar cell ɗaya za ta iya canza watts da yawa dangane da yadda tsarin stringing da bussing yake. Idan kuna son ganin yadda waɗannan matakan ke haɗuwa a kan filin samarwa na gaske, tashar YouTube ɗinmu a www.youtube.com/ooitech yana da yawan layin layi da ya cancanci kallo.
