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Ukukhetha Ikhebula Lokunweba le-PvI-s ingaphezu nje kobude noma isitayela sesixhumi. Ukuze uzifanise kahle namaphaneli elanga ahlukene, udinga ukuhlola usayizi womqhubi, izilinganiso ze-voltage kanye nezamanje, ukuhambisana kwesixhumi, uhlobo lokufaka ugesi, kanye nokuqina kwemvelo ukuze uhlelo lukwazi ukuthwala amandla ngokuphepha nangokusebenza kahle. Lesi sihloko sichaza imininingwane ebalulekile enquma ukuthi ikhebula lizosebenza yini nephaneli ethile, lapho kuvame ukungafani khona, nokuthi lawo maphutha athinta kanjani ukukhiqizwa kwamandla, ukuthembeka, kanye nengozi yomlilo. Ekugcineni, uzoba nohlaka olusebenzayo lokukhetha izintambo zokwandisa ezifanelana nezidingo zikagesi kanye nokwakheka okungokoqobo kokufakwa kwelanga.
Kungani Ukuhambisana Kwekhebula Lokwandiswa Kwe-PV Kubalulekile
Kungakhathaliseki ukuthi kufakwa uhlelo lophahla lwezindlu oluyi-5kW noma ipulazi lelanga elisebenzisa ugesi elingama-50MW, kuqinisekisa izintambo zesandiso ze-PV ezihambisanayo ezifanayo kubalulekile kokubili ekusebenzeni kwesistimu kanye nokuphepha kwendawo. Amaphaneli elanga akhiqiza ugesi wamanje oqondile (DC), okumele uhambe kahle kusuka ku-module array kuya ku-inverter noma kusilawuli sokushaja. Ngenxa yokuthi izinhlelo ze-DC zisengozini enkulu yokumelana namabanga amade okudlulisela, izici zomzimba nezikagesi zengqalasizinda yezintambo azinakubhekwa njengokucabanga kamuva. Ukuhambisana kahle kuvimbela izithiyo ezinkulu ekukhiqizweni kwamandla futhi kunciphisa izingozi ezinkulu zomlilo ezihlobene ne-DC enamandla aphezulu.
Izincazelo Eziyinhloko Zokucacisa Kusenesikhathi
Ukuqonda amagama embonini kuyisinyathelo sokuqala sokufinyelela ukuhlanganiswa kwesistimu okungenamthungo. Indawo enqamula ingxenye yomqhubi, evame ukukalwa nge-American Wire Gauge (AWG) noma amamilimitha ayizikwele (mm²), inquma ngokuqinile ukuthi intambo ingathwala amandla angakanani ngokuphepha. Ukufakwa okujwayelekile kwe-solar kwezindlu nezentengiselwano kusebenzisa kakhulu izintambo ezingu-4mm² (12 AWG) noma ezingu-6mm² (10 AWG), ezakhiwe kusetshenziswa ithusi eligoqiwe, elifakwe ethini ukuze ukumelana nokushiswa kwe-oxidationNgaphezu kwalokho, imboni yelanga ithembele kakhulu ku- izindlela zokuxhumana ezijwayelekileIzixhumi zesitayela se-MC4 ezitholakala yonke indawo zinemiklamo ethile yokuxhumanisa yabesilisa nabesifazane okumele ihlangane kahle ukuze igcine uphawu lungangenisi moya futhi lungangeni manzi ezimweni zemvelo.
Izingozi Ezivamile Zezintambo Ezingalingani
Ukusebenzisa izingxenye ezingahambisani noma ezingajwayelekile kuletha izingozi ezinkulu zokusebenza kanye nomlilo. Uma ikhebula lingaphansi kosayizi wamanje we-short-circuit current yephaneli yelanga (i-Isc), ukumelana kukagesi okubangelwayo kudala ukushisa okweqile kwendawo. Amazinga okushisa ezindaweni zokuxhuma ezimbi angadlula ngokushesha isilinganiso sokushisa esijwayelekile esingu-90°C kuya ku-120°C sejakethi yentambo, okwandisa kakhulu ingozi yokuncibilika, amaphutha e-arc, noma imililo kagesi ebhubhisayo. Ngaphezu kwalokho, izixhumi ezingalingani ezivela kubakhiqizi abahlukene zingaholela ezikhaleni ezincane, okuvumela ukungena komswakama. Lokhu kubangela ukugqwala okusheshayo kanye nokwehla kwamandla kagesi okudlula umkhawulo owamukelekayo wemboni ongu-2% kuya ku-3%. Lokhu kungasebenzi kahle kuholela ngqo ekulahlekelweni kwamandla okulinganiselwe, okuqhubekayo phakathi neminyaka engu-25 yokuphila kwe-solar array.
Izindlela Zobuchwepheshe Zokufanisa Amakhebula Okunwetshwa kwe-PV
Ukukhetha izintambo ezifanele kudinga ukuhlolwa okuqinile, okuqhutshwa idatha kwezincazelo zikagesi zesistimu. Amamojula elanga anamuhla asebenza kahle kakhulu avame ukusebenza ngama-voltage aphezulu ukuze andise ukusebenza kahle kokudlulisa, okudinga izintambo ezilinganiselwe ngokucacile i-1000V DC noma 1500V Izindawo ze-DC. Ukwehluleka ukuvumelanisa imininingwane yekhebula lokwelula nei-voltage ephezulu yesistimu kanye nokukhishwa kwe-peak amperage kwe-solar array kungalimaza yonke ingqalasizinda futhi kuqede iziqinisekiso zemishini ebizayo.
Indlela Yokuqhathanisa Izixhumi, Usayizi We-Conductor, kanye Nezilinganiso
Izici zobuchwepheshe eziyinhloko ekukhetheni ikhebula ukuhambisana kwezixhumi, isigaba se-conductor, kanye nezilinganiso zokuqina kwemvelo. Abafaki kumele baqinisekise ukuthi izintambo zokwandisa zisebenzisa izinga elifanayo lesixhumi kanye nokubekezelelana njengamaphaneli elanga—ngokuvamile i-Stäubli MC4 yokuqala noma izinhlobo ezihambisanayo eziqinisekisiwe—ukuqinisekisa uxhumano oluvikelekile, olungenaso isimo sezulu olulinganiselwe yi-IP67 noma i-IP68. Usayizi we-conductor kumele ubalwe ngokusekelwe kumandla ochungechunge aphezulu; isibonelo, ikhebula le-AWG elingu-10 lingaphatha ngokuphephile kufika kuma-amps angu-30 ku-conduit ejwayelekile, kanti ikhebula le-AWG elingu-12 ngokuvamile likhawulelwe kuma-amps angu-20 ngaphansi kwezimo ezifanayo zokushisa. Ngaphezu kwalokho, ijakhethi yangaphandle kumele ibe ne-UV-resistant cross-linked polyethylene (XLPE) noma i-cross-linked polyolefin (XLPO) ukuze imelane namashumi eminyaka okuvezwa kwelanga ngqo, ukushintshashintsha kwezinga lokushisa okukhulu, kanye nokuwohloka kwe-ozone ngaphandle kokuqhekeka.
Okufanele Kufakwe Ithebula Lokuqhathanisa Ikhebula
Ukuze kube lula inqubo yokuthenga nobunjiniyela, abaphathi bephrojekthi kufanele basebenzise i-matrix ejwayelekile ukuhlola izixazululo zokuxhuma ezingaba khona ngokuhambisana nokwakheka kwesayithi. Ithebula eliphelele lokuqhathanisa kumele lichaze kabanzi usayizi womqhubi, umthamo wamanje ophezulu, kanye nemikhawulo yebanga enconywayo yokuvimbela ukulahlekelwa kwamandla ngokweqile ngesikhathi samahora okukhiqiza amandla amaningi.
| Usayizi Wekhebula | Ubukhulu Bokubala | Isilinganiso Esiphezulu Se-Voltage | Ukugijima Okuphezulu Okunconyiwe (10A, |
|---|---|---|---|
| 4mm² (12 AWG) | 20A | 1000V DC | Amamitha ayi-15 (amafidi angu-50) |
| 6mm² (10 AWG) | 30A | 1500V DC | Amamitha angu-23 (amamitha angu-75) |
| 10mm² (8 AWG) | 45A | 1500V DC | Amamitha angu-40 (amafidi angu-130) |
| 16mm² (6 AWG) | 65A | 1500V DC | Amamitha angu-65 (amafidi angu-213) |
Ama-matrices anjalo asiza ukuqinisekisa ukuthi izingxenye ezikhethiwe zinamathela ngokuqinile ezidingweni zikagesi zokucushwa kwe-solar array ethile. Lapho ukuhlela kuqhubeka okungaphezu kwamamitha angu-40, abaklami bezinhlelo kumele bashintshele kuzintambo ezisindayo ukuze bagcine i-voltage yesistimu yehla ngaphansi kokubekezelela okuphezulu okungu-3% okufunwa yiziningi zekhodi zikagesi zomhlaba wonke.
Indlela Yokuqinisekisa Ukufaneleka Komthombo Nokufakwa
Ngale kwemininingwane yethiyori kanye namashadi osayizi, ukuthola izinto ezithembekile kudinga inqubo yokuhlola eqinile ngesikhathi sokuthenga nokulethwa. Ukuthola izingxenye ezifanele kuhilela ukulinganisa ukuhambisana nemithetho, ukuhanjiswa kwempahla, kanye nezidingo zokufakwa ngokomzimba ukuqinisekisa ukusebenza kwesikhathi eside nokuphepha komsebenzisi wokugcina.
Inqubo Yokuqinisekisa Umthengi Isinyathelo Ngesinyathelo
Inqubo yokuqinisekisa ehlelekile iqala ngokuhlola ngokuphelele izitifiketi zelebhu zomkhiqiziAbathengi bezentengiselwano kumele bafune ubufakazi bokuhambisana nezindinganiso zokuphepha ezifana ne-UL 4703 eNyakatho Melika noma i-EN 50618 eYurophu, eziphoqelela ukuhlolwa okuqinile kwe- Ucingo lwe-PV ukuqina, ukubambezeleka komlilo, kanye namandla omshini. Okulandelayo, hlola amapharamitha ochungechunge lokuphakelwa; abathengi bebhizinisi kufanele babhalele ubungako obujwayelekile be-Minimum Order (MOQs) obusukela kumamitha ayi-1,000 kuya ku-5,000 ubude bekhebula elenziwe ngokwezifiso, kanye nezikhathi zokukhiqiza ezingaba amasonto ama-3 kuya kwayi-6 kuye ngokutholakala kwethusi emhlabeni jikelele. Lapho kulethwa, ochwepheshe basensimini kumele benze ukuhlolwa okubonakalayo nokwemishini. Lokhu kufaka phakathi ukusebenzisa i-multimeter yedijithali ukuhlola ukuqhubeka kusukela ekuqaleni kuya ekugcineni nokuqinisekisa ukuthi izindlela zokukhiya izixhumi zisebenza ngokuchofoza okucacile nokuzwakalayo. Ukuxhumeka okufanele kufanele futhi kuphumelele ukuhlolwa okujwayelekile kwamandla okudonsa, ukumelana namandla amancane okudonsa angama-Newton angu-89 ngaphandle kokuhlukanisa.
Indlela Yokuhlola Ukushintshana Ngaphambi Kokukhetha Kokugcina
Abenzi bezinqumo bavame ukubhekana nokuhwebelana okuyinkimbinkimbi phakathi kokusetshenziswa kwemali kusengaphambili kanye nokukhiqiza amandla kwesikhathi eside. Ngenkathi izintambo zokulinganisa ezijiyile kanye izixhumi ze-premium zingase zikhuphule kancane izindleko zephrojekthi yokuqala, zinciphise ukwehla kwamandla kagesi futhi zivimbele ukungenelela kokulungisa okubizayo phakathi nesikhathi sokuphila kwesistimu seminyaka engama-25.
Izinto Ezibalulekile Okufanele Uzicabangele
- Iziphetho ezibaluleke kakhulu kanye nesizathu sokufanisa izintambo zesandiso ze-PV ezihambisanayo
- Imininingwane, ukuhambisana, kanye nokuhlolwa kwengozi okufanele kuqinisekiswe ngaphambi kokuthi uzibophezele
- Izinyathelo ezilandelayo ezisebenzayo kanye nezixwayiso abafundi abangazisebenzisa ngokushesha
imibuzo ejwayelekile ukubuzwa
Ngingazi kanjani ukuthi ikhebula le-PV extension lihambisana nezixhumi zami zamaphaneli elanga?
Hlola ukuthi zombili zisebenzisa izinga elifanayo lesixhumi kanye nokubekezelelana okuqondile kokuhlangana, okungcono kube yi-MC4 yokuqala noma izixhumi zesitayela se-MC4 eziqinisekisiwe ezihambisanayo zokuxhumeka okuvaliwe kwe-IP67/IP68.
Yimuphi usayizi wekhebula ovame ukusetshenziswa kumaphaneli elanga ezindlu?
Izinhlelo eziningi zokuhlala zisebenzisa ithusi eligoqiwe elingu-4mm² (12 AWG) noma elingu-6mm² (10 AWG), elikhethwe ngokusekelwe kumandla ephaneli kanye nobude bokusebenza kwekhebula.
Ingabe kufanele ngikhethe izintambo zesandiso ze-PV ze-1000V DC noma ze-1500V DC?
Qondanisa ikhebula ne-voltage ephezulu ye-DC yesistimu yakho. Sebenzisa ikhebula elilinganiselwe i-1500V kuma-array ane-voltage ephezulu; ungalokothi usebenzise i-voltage ephansi kunalokho okudingwa yi-array.
Ngingakunciphisa kanjani ukwehla kwamandla kagesi ekusebenzeni kwekhebula le-PV extension?
Sebenzisa i-conductor enkulu bese ugcina ijubane lifushane ngangokunokwenzeka. Hlosa ukuhlala ngaphakathi kokwehla kwe-voltage okungu-2% kuya ku-3% ukuze uthole amandla angcono isikhathi eside.
Yisiphi isici sejakethi yekhebula esilungele ukufakwa kwe-solar yangaphandle?
Khetha ikhebula le-PV elinomshini wokuvikela i-XLPE noma i-XLPo omelana ne-UV. Liphatha ukukhanya kwelanga, i-ozone, kanye nokushintshashintsha kwezinga lokushisa kangcono kunentambo evamile yangaphandle.