Xyoo 2023-12-20
Lub hnub ci vaj huam sib luag lub thawv yog qhov txuas ntawm lub hnub ci vaj huam sib luag thiab cov khoom siv them nyiaj, thiab yog ib feem tseem ceeb ntawm lub hnub ci vaj huam sib luag.Nws yog ib qho kev qhuab qhia dav dav uas ua ke nrog kev tsim hluav taws xob, kev tsim kho tshuab thiab cov khoom siv science los muab cov neeg siv nrog kev sib txuas ua ke rau cov hnub ci vaj huam sib luag.
Lub luag haujlwm tseem ceeb ntawm lub hnub ci kev sib txuas lub thawv yog tso tawm cov hluav taws xob hluav taws xob uas tsim los ntawm lub hnub ci vaj huam sib luag los ntawm lub cable.Vim qhov tshwj xeeb thiab tus nqi siab ntawm lub hnub ci, lub thawv hnub ci yuav tsum tau tsim tshwj xeeb kom tau raws li cov kev xav tau ntawm lub hnub ci vaj huam sib luag.Peb tuaj yeem xaiv los ntawm tsib yam ntawm kev ua haujlwm, yam ntxwv, hom, muaj pes tsawg leeg thiab kev ua haujlwm tsis zoo ntawm lub thawv sib txuas.
Lub luag haujlwm tseem ceeb ntawm lub hnub ci kev sib txuas lub thawv yog txuas rau lub hnub ci vaj huam sib luag thiab kev thauj khoom, thiab kos cov khoom tam sim no los ntawm photovoltaic vaj huam sib luag los tsim hluav taws xob.Lwm txoj haujlwm yog los tiv thaiv cov xov hlau tawm los ntawm cov teebmeem kub.
Lub hnub ci hlws ris lub thawv ua raws li tus choj ntawm lub hnub ci vaj huam sib luag thiab lub inverter.Nyob rau hauv lub hlws ris lub thawv, tam sim no generated los ntawm lub hnub ci vaj huam sib luag yog kos tawm los ntawm terminals thiab connectors thiab mus rau hauv cov khoom siv hluav taws xob.
Yuav kom txo tau lub zog poob ntawm lub hlws ris lub thawv rau lub hnub ci vaj huam sib luag ntau npaum li sai tau, qhov kev tiv thaiv ntawm cov khoom siv hluav taws xob siv nyob rau hauv lub hnub ci vaj huam sib luag lub thawv yuav tsum me me, thiab kev tiv thaiv kev tiv thaiv nrog lub busbar txhuas hlau yuav tsum me me. .
Kev tiv thaiv muaj nuj nqi ntawm lub hnub ci hlws ris lub thawv muaj peb ntu:
1. Los ntawm bypass diode yog siv los tiv thaiv qhov kub ntawm cov nyhuv thiab tiv thaiv lub roj teeb thiab lub hnub ci vaj huam sib luag;
2. Cov khoom siv tshwj xeeb yog siv los kaw cov qauv tsim, uas yog waterproof thiab fireproof;
3. Kev tsim tshwj xeeb cua sov dissipation txo lub hlws ris lub thawv thiab Kev khiav hauj lwm kub ntawm lub bypass diode txo qhov poob ntawm lub hnub ci vaj huam sib luag zog vim tam sim no to.
(1) Huab cua tsis kam
Thaum cov khoom siv photovoltaic junction box yog siv sab nraum zoov, nws yuav tiv taus qhov kev sim ntawm huab cua, xws li kev puas tsuaj los ntawm lub teeb, cua sov, cua thiab los nag.Cov khoom nthuav tawm ntawm PV hlws ris lub thawv yog lub thawv lub cev, lub thawv npog thiab MC4 connector, uas yog txhua yam ua los ntawm cov khoom siv tiv thaiv huab cua.Tam sim no, cov khoom siv feem ntau yog PPO, uas yog ib qho ntawm tsib yam khoom siv hluav taws xob hauv ntiaj teb.Nws muaj qhov zoo ntawm kev ua haujlwm siab, siab kub tsis kam, hluav taws tsis kam, siab zog, thiab cov khoom siv hluav taws xob zoo heev.
(2) Kub kub thiab av noo tsis kam
Qhov chaw ua haujlwm ntawm cov hnub ci vaj huam sib luag yog hnyav heev.Qee qhov kev ua haujlwm hauv thaj chaw sov, thiab qhov nruab nrab txhua hnub kub siab heev;qee qhov ua haujlwm nyob rau hauv qhov chaw siab thiab qhov chaw siab, thiab kev khiav hauj lwm kub yog tsawg heev;nyob rau qee qhov chaw, qhov kub sib txawv nruab hnub thiab hmo ntuj yog qhov loj, xws li thaj chaw suab puam.Yog li ntawd, photovoltaic hlws ris thawv yuav tsum muaj qhov kub thiab txias tsis kam tiv taus.
(3) UV tiv taus
Ultraviolet rays muaj qee yam kev puas tsuaj rau cov khoom yas, tshwj xeeb tshaj yog nyob rau hauv toj siab cov huab cua nyias thiab siab ultraviolet irradiance.
(4) Nplaim Retardancy
Hais txog cov khoom uas muaj los ntawm ib yam khoom los yog kev kho mob ntawm cov khoom uas ua rau kom qeeb ntawm cov nplaim taws.
(5) Waterproof thiab Dustproof
Lub thawv photovoltaic hlws ris lub thawv yog dej tsis qab thiab plua plav IP65, IP67, thiab Slocable photovoltaic hlws ris lub thawv tuaj yeem ncav cuag qib siab tshaj ntawm IP68.
(6) Thaum tshav kub kub dissipation muaj nuj nqi
Diodes thiab ambient kub nce qhov kub ntawm PV hlws ris lub thawv.Thaum lub diode conducts, nws generates cua sov.Nyob rau tib lub sijhawm, cua sov kuj tseem tsim los ntawm kev sib cuag ntawm lub diode thiab lub davhlau ya nyob twg.Tsis tas li ntawd, qhov nce hauv ambient kub kuj yuav ua rau kom qhov kub thiab txias hauv lub thawv sib txuas.
Cheebtsam hauv PV hlws ris lub thawv uas raug rau qhov kub thiab txias yog sealing rings thiab diodes.Qhov kub thiab txias yuav ua rau kev laus nrawm ntawm lub nplhaib sealing thiab cuam tshuam rau kev sib khi ntawm lub thawv sib txuas;muaj qhov rov qab tam sim no hauv lub diode, thiab qhov rov qab tam sim no yuav muab ob npaug rau txhua 10 ° C nce hauv qhov kub thiab txias.Rov qab tam sim no txo qhov tam sim no rub los ntawm lub rooj tsav xwm hauv Circuit Court, cuam tshuam rau lub zog ntawm lub rooj tsavxwm.Yog li ntawd, photovoltaic hlws ris thawv yuav tsum muaj cov khoom cua kub zoo heev.
Ib qho kev tsim thermal yog los nruab ib lub dab dej kub.Txawm li cas los xij, kev txhim kho cov dab dej kub tsis tuaj yeem daws qhov teeb meem kub ntxhov.Yog tias lub rhaub dej kub tau nruab rau hauv lub thawv photovoltaic hlws ris, qhov kub ntawm lub diode yuav txo qis ib ntus, tab sis qhov kub ntawm lub thawv sib txuas tseem yuav nce ntxiv, uas yuav cuam tshuam rau lub neej kev pab cuam ntawm cov roj hmab foob;Yog tias ntsia sab nraum lub thawv sib txuas, ntawm ib sab, nws yuav cuam tshuam tag nrho kev sib khi ntawm lub thawv sib txuas, ntawm qhov tod tes, nws kuj yog ib qho yooj yim rau lub heatsink kom corroded.
Muaj ob lub ntsiab ntawm cov thawv sib txuas: zoo tib yam thiab potted.
Cov thawv ntim khoom sib txuas tau muab ntim nrog cov khoom siv silicone, thaum lub thawv ntim roj hmab tau ntim nrog ob lub ntsiab lus silicone.Lub thawv sib txuas zoo tib yam tau siv ua ntej thiab yooj yim rau kev khiav lag luam, tab sis lub nplhaib sealing yog yooj yim rau hnub nyoog thaum siv mus ntev.Lub potting hom hlws ris lub thawv yog qhov nyuaj rau kev khiav lag luam (nws yuav tsum tau ntim nrog ob lub ntsiab lus silica gel thiab kho), tab sis cov nyhuv sealing zoo, thiab nws tiv taus kev laus, uas tuaj yeem ua kom lub sij hawm ntev sealing zoo. junction box, thiab tus nqi yog me ntsis pheej yig dua.
Lub hnub ci kev sib txuas lub thawv yog tsim los ntawm lub thawv lub cev, lub thawv npog, cov khoom sib txuas, cov terminals, diodes, thiab lwm yam. Qee lub thawv sib txuas cov chaw tsim khoom tau tsim cov dab dej kub los txhim kho qhov kub thiab txias hauv lub thawv, tab sis tag nrho cov qauv tsis hloov.
(1) Lub cev lub cev
Lub thawv lub cev yog qhov tseem ceeb ntawm lub thawv sib txuas, nrog cov terminals built-in thiab diodes, txuas sab nraud, thiab lub thawv npog.Nws yog ib feem ntawm lub hnub ci kev twb kev txuas lub thawv thiab dais feem ntau ntawm cov huab cua tiv thaiv yuav tsum tau.Lub thawv lub cev feem ntau yog ua los ntawm PPO, uas muaj qhov zoo ntawm kev ua haujlwm siab, kev ua haujlwm siab kub, hluav taws kub, thiab lub zog siab.
(2) Lub thawv npog
Lub thawv npog tuaj yeem kaw lub thawv lub cev, tiv thaiv dej, plua plav thiab kuab paug.Qhov nruj yog feem ntau yog tshwm sim nyob rau hauv lub built-in roj hmab sealing nplhaib, uas tiv thaiv huab cua thiab noo noo los ntawm nkag mus rau hauv lub hlws ris box.Qee cov tuam txhab tsim ib lub qhov me me nyob rau hauv nruab nrab ntawm lub hau, thiab nruab lub tshuab lim dej hauv huab cua.Lub membrane yog breathable thiab impermeable, thiab tsis muaj dej seepage rau peb meters underwater, uas plays lub luag hauj lwm zoo nyob rau hauv tshav kub dissipation thiab sealing.
Lub thawv lub cev thiab lub thawv npog feem ntau yog txhaj tshuaj molded los ntawm cov ntaub ntawv uas muaj huab cua tsis zoo, uas muaj cov yam ntxwv zoo elasticity, kub poob siab tsis kam, thiab kev laus tsis kam.
(3) Connector
Connectors txuas cov terminals thiab lwm yam khoom siv hluav taws xob xws li inverters, controllers, thiab lwm yam. Lub connector yog ua los ntawm PC, tab sis PC yog yooj yim corroded los ntawm ntau yam khoom.Kev laus ntawm lub hnub ci hlws ris lub thawv yog feem ntau cuam tshuam rau hauv: cov khoom sib txuas tau yooj yim corroded, thiab cov txiv ntoo yas tau yooj yim tawg nyob rau hauv qhov kub thiab txias.Yog li ntawd, lub neej ntawm lub thawv sib txuas yog lub neej ntawm lub connector.
(4) Terminals
Cov neeg tsim khoom sib txawv ntawm cov khoom siv davhlau ya nyob twg thaiv qhov sib txawv kuj txawv.Muaj ob hom kev sib cuag ntawm lub davhlau ya nyob twg thiab cov xaim tawm: ib qho yog kev sib cuag ntawm lub cev, xws li kev sib tsoo, thiab lwm yam yog vuam hom.
(5) Diodes
Diodes nyob rau hauv PV hlws ris thawv yog siv raws li bypass diodes los tiv thaiv qhov kub thiab txias los tiv thaiv hnub ci panels.
Thaum lub hnub ci vaj huam sib luag ua hauj lwm ib txwm, lub bypass diode nyob rau hauv lub off state, thiab muaj ib tug rov qab tam sim no, uas yog, tam sim no tsaus nti, uas yog feem ntau tsawg tshaj li 0.2 microampere.Tsaus tam sim no txo qhov tam sim no uas tsim los ntawm lub hnub ci vaj huam sib luag, txawm tias los ntawm qhov tsawg heev.
Qhov zoo tshaj plaws, txhua lub hnub ci cell yuav tsum muaj ib qho bypass diode txuas.Txawm li cas los xij, nws yog qhov tsis txaus ntseeg vim yog yam xws li tus nqi thiab tus nqi ntawm bypass diodes, tsaus tam sim no poob thiab qhov hluav taws xob poob hauv kev ua haujlwm.Tsis tas li ntawd, qhov chaw ntawm lub hnub ci vaj huam sib luag yog cov concentrated, thiab cov cua kub txaus yuav tsum tau muab tom qab lub diode txuas.
Yog li, nws yog feem ntau tsim nyog siv bypass diodes los tiv thaiv ntau lub hnub ci kev sib txuas.Qhov no tuaj yeem txo cov nqi ntawm cov hnub ci vaj huam sib luag, tab sis kuj tuaj yeem cuam tshuam rau lawv cov kev ua tau zoo.Yog tias cov zis ntawm ib lub hnub ci hauv ib lub hnub ci ntawm lub hnub ci raug txo, cov hnub ci ntawm lub hnub ci, nrog rau cov uas ua haujlwm zoo, raug cais tawm ntawm tag nrho lub hnub ci vaj huam sib luag los ntawm bypass diode.Nyob rau hauv txoj kev no, vim tsis ua hauj lwm ntawm ib lub hnub ci vaj huam sib luag, cov zis hluav taws xob ntawm tag nrho lub hnub ci vaj huam sib luag yuav poob ntau heev.
Ntxiv nrog rau cov teeb meem saum toj no, kev sib txuas ntawm lub bypass diode thiab nws cov bypass diodes nyob ib sab yuav tsum tau ua tib zoo xav.Cov kev sib txuas no raug rau qee qhov kev ntxhov siab uas yog cov khoom ntawm cov neeg kho tshuab loads thiab cyclical hloov ntawm qhov kub thiab txias.Yog li ntawd, nyob rau hauv lub sij hawm ntev ntawm kev siv lub hnub ci vaj huam sib luag, qhov saum toj no-hais kev twb kev txuas yuav ua tsis tau tejyam vim qaug zog, yog li ua rau lub hnub ci vaj huam sib luag txawv txav.
Hot Spot Effect
Nyob rau hauv lub hnub ci vaj huam sib luag configuration, ib tug neeg lub hnub ci hlwb txuas nrog nyob rau hauv series kom ua tau siab dua qhov system voltages.Thaum ib lub hnub ci thaiv thaiv, lub hnub ci cuam tshuam yuav tsis ua haujlwm li lub zog hluav taws xob, tab sis dhau los ua tus neeg siv khoom siv hluav taws xob.Lwm cov hnub ci tsis muaj hnub ci txuas ntxiv nqa tam sim no los ntawm lawv, ua rau lub zog poob siab, tsim "cov chaw kub" thiab txawm ua rau lub hnub ci puas.
Txhawm rau zam qhov teeb meem no, bypass diodes txuas nrog rau ib qho lossis ob peb lub hnub ci hauv cov koob.Bypass tam sim no bypasses lub shielded solar cell thiab hla dhau lub diode.
Thaum lub hnub ci cell ua hauj lwm ib txwm, lub bypass diode yog muab tua nyob rau hauv rov qab, uas tsis cuam tshuam rau Circuit Court;Yog tias muaj qhov txawv txav ntawm lub hnub ci kev sib txuas ua ke nrog lub bypass diode, tam sim no ntawm tag nrho cov kab yuav raug txiav txim los ntawm qhov tsawg kawg nkaus tam sim no lub hnub ci cell, thiab tam sim no yuav raug txiav txim los ntawm qhov chaw tiv thaiv ntawm lub hnub ci cell.Txiav txim siab.Yog tias qhov hluav taws xob thim rov qab siab dua li qhov tsawg kawg nkaus ntawm lub hnub ci hluav taws xob, lub bypass diode yuav ua thiab lub hnub ci tsis zoo yuav raug luv.
Nws tuaj yeem pom tias qhov chaw kub kub yog lub hnub ci vaj huam sib luag cua sov lossis cua sov hauv zos, thiab lub hnub ci vaj huam sib luag ntawm qhov chaw kub yog puas, uas txo cov hluav taws xob hluav taws xob ntawm lub hnub ci vaj huam sib luag thiab tseem ua rau lub hnub ci vaj huam sib luag scrapping, uas ua rau lub neej ua haujlwm tau zoo. ntawm lub hnub ci vaj huam sib luag thiab ua rau muaj kev phom sij rau qhov chaw nres tsheb fais fab fais fab kev nyab xeeb, thiab cov cua kub sib xyaw ua ke yuav ua rau lub hnub ci kev puas tsuaj.
Diode Xaiv Txoj Cai
Kev xaiv ntawm lub bypass diode feem ntau ua raws li cov hauv qab no: ① The withstand voltage yog ob zaug lub siab tshaj plaws rov qab ua hauj lwm voltage;② Lub peev xwm tam sim no yog ob zaug qhov siab tshaj plaws rov qab ua haujlwm tam sim no;③ Qhov kub ntawm qhov sib txuas yuav tsum siab dua qhov kub ntawm qhov sib txuas;④ thermal kuj me me;⑤ poob siab me me.
(1) Cov khoom siv hluav taws xob
Kev ua haujlwm hluav taws xob ntawm PV module hlws ris lub thawv feem ntau suav nrog cov tsis xws li kev ua haujlwm voltage, ua haujlwm tam sim no, thiab tsis kam.Txhawm rau ntsuas seb lub thawv sib txuas puas tsim nyog, kev ua haujlwm hluav taws xob yog qhov txuas tseem ceeb.
① Ua haujlwm voltage
Thaum qhov hluav taws xob rov qab hla lub diode nce mus txog ib qho nqi, lub diode yuav tawg thiab poob unidirectional conductivity.Txhawm rau kom muaj kev nyab xeeb ntawm kev siv, qhov siab tshaj plaws rov qab ua haujlwm voltage tau teev tseg, uas yog, qhov siab tshaj plaws ntawm cov khoom siv sib txuas thaum lub thawv sib txuas ua haujlwm raws li kev ua haujlwm ib txwm muaj.Tam sim no ua hauj lwm voltage ntawm PV hlws ris lub thawv yog 1000V (DC).
② Kev sib tshuam kub tam sim no
Kuj tseem hu ua kev ua haujlwm tam sim no, nws hais txog qhov siab tshaj plaws ntawm tus nqi tam sim no uas tau tso cai dhau los ntawm diode thaum nws ua haujlwm tsis tu ncua ntev.Thaum tam sim no ntws los ntawm lub diode, qhov tuag yog rhuab thiab kub nce.Thaum qhov kub siab tshaj qhov kev txwv (kwv yees li 140 ° C rau cov raj silicon thiab 90 ° C rau germanium hlab), cov tuag yuav overheat thiab puas.Yog li ntawd, lub diode nyob rau hauv kev siv yuav tsum tsis txhob tshaj qhov ntsuas rau pem hauv ntej kev khiav hauj lwm tam sim no tus nqi ntawm lub diode.
Thaum cov nyhuv kub kub tshwm sim, tam sim no ntws los ntawm diode.Feem ntau hais lus, qhov loj dua qhov sib txuas qhov kub tam sim no, qhov zoo dua, thiab qhov loj dua qhov kev ua haujlwm ntawm lub thawv sib txuas.
③ Kev sib txuas tsis kam
Tsis muaj qhov yuav tsum tau muaj meej meej rau qhov kev sib txuas ua haujlwm, nws tsuas yog qhia txog qhov zoo ntawm kev sib txuas ntawm lub davhlau ya nyob twg thiab busbar.Muaj ob txoj hauv kev los txuas cov terminals, ib qho yog clamping txuas thiab lwm qhov yog vuam.Ob txoj kev muaj qhov zoo thiab qhov tsis zoo:
Ua ntej ntawm tag nrho cov, lub clamping yog ceev thiab txij nkawm yog yooj yim, tab sis lub cheeb tsam nrog lub davhlau ya nyob twg thaiv yog me me, thiab cov kev twb kev txuas tsis txhim khu kev qha txaus, ua rau muaj kev tiv thaiv siab thiab yooj yim rau cua sov.
Qhov thib ob, qhov chaw ua haujlwm ntawm txoj kev vuam yuav tsum yog me me, kev tiv thaiv kev sib cuag yuav tsum me me, thiab kev sib txuas yuav tsum nruj.Txawm li cas los xij, vim yog qhov kub thiab txias, lub diode yog qhov yooj yim rau hlawv tawm thaum lub sijhawm ua haujlwm.
(2) Dav ntawm Vuam Sawb
Qhov dav hu ua electrode yog hais txog qhov dav ntawm txoj kab tawm ntawm lub hnub ci vaj huam sib luag, uas yog, lub busbar, thiab tseem suav nrog qhov sib nrug ntawm cov electrodes.Xav txog qhov tsis kam thiab qhov sib nrug ntawm lub busbar, muaj peb qhov tshwj xeeb: 2.5mm, 4mm, thiab 6mm.
(3) Ua haujlwm kub
Lub thawv sib txuas yog siv ua ke nrog lub hnub ci vaj huam sib luag thiab muaj zog yoog rau ib puag ncig.Hais txog qhov kub thiab txias, tus qauv tam sim no yog - 40 ℃ ~ 85 ℃.
(4) Qhov kub thiab txias
Lub diode hlws ris kub cuam tshuam rau cov dej ntws tawm hauv lub xeev tawm.Feem ntau hais lus, cov xau tam sim no ob npaug rau txhua 10 degree nce hauv qhov kub thiab txias.Yog li ntawd, qhov ntsuas kub ntawm qhov sib txuas ntawm lub diode yuav tsum siab dua qhov ntsuas qhov sib txuas tiag tiag.
Txoj kev ntsuas ntawm diode hlws ris kub yog raws li nram no:
Tom qab cua sov lub hnub ci vaj huam sib luag rau 75 (℃) rau 1 teev, qhov kub ntawm lub bypass diode yuav tsum qis dua nws qhov siab tshaj plaws ua haujlwm kub.Tom qab ntawd nce qhov rov qab tam sim no mus rau 1.25 zaug ISC rau 1 teev, lub bypass diode yuav tsum tsis txhob poob.
(1) Test
Hnub ci Junction thawv yuav tsum tau kuaj ua ntej siv.Cov khoom tseem ceeb muaj xws li cov tsos, sealing, kev ntsuas hluav taws kub, kev tsim nyog diode, thiab lwm yam.
(2) Yuav Ua Li Cas Siv Lub Hnub Ci Junction Box
① Thov xyuas kom meej tias lub thawv hnub ci tau raug kuaj thiab tsim nyog ua ntej siv.
② Ua ntej muab qhov kev txiav txim ntau lawm, thov paub meej tias qhov kev ncua deb ntawm cov terminals thiab cov txheej txheem layout.
③Thaum txhim kho lub thawv sib txuas, siv cov kua nplaum sib npaug thiab ua tiav kom ntseeg tau tias lub thawv lub cev thiab lub hnub ci vaj huam sib luag rov qab tau kaw tag nrho.
④ Nco ntsoov paub qhov txawv qhov zoo thiab qhov tsis zoo thaum txhim kho lub thawv sib txuas.
⑤ Thaum txuas lub tsheb npav mus rau lub davhlau ya nyob twg, nco ntsoov xyuas seb qhov nro ntawm lub tsheb npav thiab lub davhlau ya nyob twg puas txaus.
⑥ Thaum siv vuam terminals, lub sijhawm vuam yuav tsum tsis txhob ntev dhau, thiaj li tsis ua rau lub diode puas.
⑦ Thaum txhim kho lub thawv npog, nco ntsoov clamp nws kom ruaj khov.
Dongguan Slocable Photovoltaic Technology Co., Ltd.
Ntxiv: Guangda Manufacturing Hongmei Science thiab Technology Park, No. 9-2, Hongmei Section, Wangsha Road, Hongmei Town, Dongguan, Guangdong, Suav teb
TEL: 0769-22010201
