Eminyakeni yamuva, ubuchwepheshe bemboni ye-photovoltaic buye bakhula ngokushesha futhi ngokushesha, amandla ezingxenye ezingashadile abe makhulu futhi makhulu, izintambo zamanje ziye zaba zikhulu futhi zikhulu, futhi amandla amanje ezingxenyeni zamandla aphezulu afinyelele ngaphezu kwalokho. 17A.
Mayelana nomklamo wesistimu, ukusetshenziswa kwezingxenye zamandla aphezulu kanye nokuqhathanisa okunengqondo kunganciphisa izindleko zokuqala zokutshala izimali kanye nezindleko ngehora ngalinye le-kilowatt lesistimu.
Izindleko zezintambo ze-AC kanye ne-DC ohlelweni zenza ingxenye enkulu.Ukuklama nokukhethwa kufanele kwehliswe kanjani ukuze kuncishiswe izindleko?
Ukukhethwa kwezintambo ze-DC
Izintambo ze-DC zifakwe ngaphandle.Ngokuvamile kunconywa ukukhetha izintambo ezikhethekile ze-photovoltaic ezinama-irradiated kanye ne-cross-linked.
Ngemuva kokukhanya kwe-electron beam enamandla amakhulu, ukwakheka kwamangqamuzana ongqimba lwekhebula kuyashintsha kusuka kumugqa kuya kusakhiwo semolekyuli enezinhlangothi ezintathu, futhi izinga lokumelana nezinga lokushisa liyakhuphuka lisuka ku-70 ℃ elingaxhumene liye ku-90 ℃, 105 ℃. , 125℃, 135℃, ngisho no-150℃, ephakeme ngo-15-50% kunomthamo wamanje wokuthwala wezintambo zokucaciswa okufanayo.
Ingakwazi ukumelana noshintsho olukhulu lokushisa kanye nokuguguleka kwamakhemikhali futhi ingasetshenziswa ngaphandle iminyaka engaphezu kwengu-25.
Lapho ukhetha izintambo ze-DC, udinga ukukhetha imikhiqizo enezitifiketi ezifanele ezivela kubakhiqizi abajwayelekile ukuze uqinisekise ukusetshenziswa kwangaphandle kwesikhathi eside.
Intambo ye-photovoltaic DC esetshenziswa kakhulu yikhebula lesikwele le-PV1-F 1*4 4.Kodwa-ke, ngokwanda kwe-photovoltaic module yamanje kanye nokwanda kwamandla okuguqula okukodwa, ubude bekhebula le-DC buyakhula, futhi ukusetshenziswa kwekhebula le-DC engu-6 square nakho kuyanda.
Ngokwezincazelo ezifanele, ngokuvamile kunconywa ukuthi ukulahlekelwa kwe-photovoltaic DC akufanele kudlule i-2%.Sisebenzisa leli zinga ukuklama indlela yokukhetha ikhebula le-DC.
Ukumelana komugqa wekhebula le-PV1-F 1*4mm2 DC ngu-4.6mΩ/imitha, futhi ukumelana komugqa wekhebula le-PV 6mm2 DC ngu-3.1mΩ/imitha.Uma sicabanga ukuthi i-voltage yokusebenza yemojula ye-DC ingu-600V, ukwehla kwamandla kagesi ngo-2% kungu-12V.
Uma sicabanga ukuthi i-module yamanje yi-13A, isebenzisa ikhebula le-4mm2 DC, ibanga elisuka ekupheleni kwemodyuli kuya ku-inverter linconywa ukuthi lingadluli amamitha angu-120 (intambo eyodwa, ngaphandle kwezigxobo ezinhle nezimbi).
Uma likhulu kunaleli banga, kunconywa ukuthi ukhethe ikhebula le-6mm2 DC, kodwa kunconywa ukuthi ibanga ukusuka ekupheleni okude kakhulu kwemodyuli kuya ku-inverter lingabi ngaphezu kwamamitha angu-170.
Ukukhethwa kwezintambo ze-AC
Ukuze kuncishiswe izindleko zesistimu, izingxenye nama-inverters eziteshi zamandla e-photovoltaic akuvamile ukulungiselelwa ngesilinganiso esingu-1:1.Esikhundleni salokho, inani elithile lokuqhathanisa ngokweqile liklanyelwe ngokuvumelana nezimo zokukhanyisa, izidingo zephrojekthi, njll.
Isibonelo, engxenyeni engu-110KW, i-inverter engu-100KW ikhethiwe.Ngokwezibalo zokuqhathanisa kakhulu izikhathi ezingu-1.1 ohlangothini lwe-AC lwe-inverter, umkhawulo wamanje ophumayo we-AC ucishe ube ngu-158A.
Ukukhethwa kwezintambo ze-AC kunganqunywa ngokuya ngomphumela omkhulu wamanje we-inverter.Ngoba kungakhathaliseki ukuthi izakhi zilingana kangakanani, i-current inverter AC input ngeke idlule umthamo omkhulu wamanje we-inverter.
Izintambo zethusi ze-AC ze-photovoltaic ezivame ukusetshenziswa zihlanganisa i-BVR ne-YJV namanye amamodeli.I-BVR isho intambo ethambile ye-polyvinyl chloride ewumgogodla wethusi, intambo yamandla efakwe ugesi ye-YJV exhumeke ngokuphambana ye-polyethylene.
Lapho ukhetha, naka izinga le-voltage nezinga lokushisa lekhebula.Khetha uhlobo lwe-flame-retardant.Ukucaciswa kwekhebula kuvezwa ngenombolo ewumgogodla, i-cross-section kanye neleveli ye-voltage: isichazamazwi sokucaciswa kwekhebula legatsha eliwumgogodla owodwa, 1*isigaba esiphambanayo, njengalokhu: 1*25mm 0.6/1kV, okubonisa ikhebula lesikwele esingu-25.
Imininingwane yezintambo zamagatsha ezisontekile ezinamagatsha amaningi: inani lamakhebuli akuluphu efanayo * isigaba esiphambanayo, njengalokhu: 3*50+2*25mm 0.6/1KV, okubonisa izintambo ezibukhoma eziyisikwele eziyi-3 50, izintambo ezimaphakathi zesikwele ezingama-25 kanye i-25 square ground wire.
Uyini umehluko phakathi kwekhebula eliwumgogodla owodwa kanye nekhebula elinomgogodla omningi?
Ikhebula eliwumgogodla owodwa lisho ikhebula eline-conductor eyodwa kuphela kungqimba olufakwa ngaphakathi.Ikhebula le-Multi-core libhekisela kukhebuli enomongo ovalekile ongaphezu kowodwa.Mayelana nokusebenza kwe-insulation, zombili izintambo eziwumgogodla owodwa kanye nezintambo eziningi kufanele zihlangabezane namazinga kazwelonke.
Umehluko phakathi kwekhebula lezintambo eziningi kanye nekhebula eliwumgogodla owodwa ukuthi ikhebula eliwumgogodla owodwa lisekelwe ngokuqondile emikhawulweni yomibili, futhi ungqimba oluvikela insimbi lwekhebula lungase lukhiqize amandla ajikelezayo, okuholela ekulahlekelweni;
Ikhebula le-Multi-core ngokuvamile ikhebula eliwumgogodla emithathu, ngoba ngesikhathi sokusebenza kwekhebula, isamba samaza ageleza phakathi kwama-cores amathathu singuziro, futhi empeleni awekho amandla kagesi emikhawulweni yomibili yesendlalelo esivikela ikhebula lensimbi.
Ngokombono womthamo wokujikeleza, wezintambo eziwumgogodla owodwa kanye nezintambo eziningi, umthamo wamanje olinganiselwe wokuthwala wezintambo eziwumgogodla owodwa mkhulu kunezintambo ezintathu eziyinhloko zesigaba esifanayo;
Ukusebenza kokukhipha ukushisa kwezintambo ezinomgogodla owodwa kukhulu kunokwamakhebuli anengqikithi eminingi.Ngaphansi komthwalo ofanayo noma izimo zesifunda esifushane, ukushisa okukhiqizwe izintambo eziwumgogodla owodwa kungaphansi kwalokho kwezintambo eziningi, okuphephile;
Ngokombono wokubekwa kwekhebula, izintambo ezinezingqimba eziningi zilula ukubekeka, futhi izintambo ezinokuvikela kwangaphakathi kanye nezingqimba eziningi ezikabili ziphephe kakhudlwana;Izintambo ezinomgogodla owodwa kulula ukugoba ngesikhathi sokubeka, kodwa ubunzima bokubeka phezu kwamabanga amade bukhulu kuzintambo eziwumgogodla owodwa kunezintambo eziningi.
Ngokombono wokufakwa kwekhanda lekhebula, amakhanda ekhebula elilodwa alula ukuzifaka futhi alungele ukuhlukaniswa komugqa.Ngokwentengo, intengo yeyunithi yezintambo eziwumgogodla omningi iphakeme kancane kunaleyo yezintambo eziwumgogodla owodwa.
Amakhono ezintambo zesistimu ye-Photovoltaic
Imigqa yesistimu ye-photovoltaic ihlukaniswe izingxenye ze-DC ne-AC.Lezi zingxenye ezimbili zidinga izintambo ngokwehlukana.Ingxenye ye-DC ixhunywe ezingxenyeni, futhi ingxenye ye-AC ixhunywe kugridi yamandla.
Kunezintambo eziningi ze-DC eziteshini zikagesi eziphakathi nendawo nezinkulu.Ukuze kube lula ukugcinwa kwesikhathi esizayo, izinombolo zolayini zekhebula ngalinye kufanele zinamathiselwe ngokuqinile.Izintambo zamandla ezinamandla nezibuthakathaka ziyahlukaniswa.Uma kukhona imigqa yesignali, njengokuxhumana kwe-485, kufanele ihanjiswe ngokuhlukana ukuze kugwenywe ukuphazamiseka.
Lapho uhambisa izintambo, lungisa amapayipi namabhuloho.Zama ukungazivezi izintambo.Kuzobukeka kangcono uma izintambo zihanjiswa ngokuvundlile nangokuqondile.Zama ukungabi namajoyinti ekhebula emiseleni nasemabhulohweni ngoba akulula ukuwanakekela.Uma izintambo ze-aluminium zishintsha izintambo zethusi, ama-adaptha e-copper-aluminium athembekile kufanele asetshenziswe.
Kuwo wonke uhlelo lwe-photovoltaic, izintambo ziyingxenye ebaluleke kakhulu, futhi isabelo sabo sezindleko ohlelweni siyanda.Lapho siklama isiteshi sikagesi, sidinga ukonga izindleko zesistimu ngangokunokwenzeka ngenkathi siqinisekisa ukusebenza okuthembekile kwesiteshi sikagesi.
Ngakho-ke, ukuklama nokukhethwa kwezintambo ze-AC ne-DC zezinhlelo ze-photovoltaic kubaluleke kakhulu.
Sicela uzizwe ukhululekile ukusithinta ukuze uthole ulwazi olwengeziwe ngamakhebula elanga.
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Isikhathi sokuthumela: Jun-17-2024
