I-Photovoltaic box-type substation (ibizwa ngokuthi i-photovoltaic box transformer) iyisethi ephelele yemishini yokuguqula amandla eyakhelwe ngaphandle, eyenzelwe ngokukhethekile izinhlelo zokukhiqiza amandla elanga. Iphothula ikakhulukazi ukuqoqwa, ukukhuphuka kwamandla, ukuvikelwa, nokuxhunywa kugridi kwamandla akhiqizwa yi-photovoltaic inverter. Isetshenziswa kabanzi eziteshini zamandla elanga ezihlangene, amandla elanga ezimboni nezohwebo asatshalaliswe, amaphrojekthi asekhaya nawasepulazini/ezolimo/ezokulima ahambisana namandla elanga.
I. Ukubekwa komkhiqizo nesikali sesicelo
Izinga lamandla kagesi: 0.69kV/0.8kV/1.14kV, likhuphukile lafika ku-10kV noma ku-35kV
Izimo ezisebenzayo: iziteshi zamandla elanga ezihlangene emhlabeni, iziteshi zamandla elanga ezintabeni, ukuhlanganiswa kwamandla elanga nezinhlanzi, amandla elanga ezolimo/ukuhlanganiswa kwamandla elanga nezinhlanzi, amandla elanga ahlukanisiwe ezindlini zezimboni nezokuhweba.
Imodi yokusebenza: ukusebenza ngaphandle ngaphansi kwazo zonke izimo zezulu, kungabikho muntu, ukuqapha ukude
Izinga lokusebenza: GB/T 17467, GB/T 6451, NB/T 10397 izindinganiso ezithile ze-photovoltaic, njll.
II. Ipharamitha Zobuchwepheshe Ezijwayelekile
Uhlangothi oluphansi lamandla: 0.69kV/0.8kV/1.14kV
Uhlangothi lwamandla aphezulu: 10kV noma 35kV
Ububanzi bamandla:
I-transformer yebhokisi engu-10kV: 800kVA kuya ku-2500kVA
Ibhokisi likatransformer elingu-35kV: 1600kVA kuya ku-5000kVA
Izinga lokushintsha okufushane: 20kA/25kA
Izinga lokuvikela: IP54 (ibhokisi), ngaphakathi IP4X
Izinga lokushisa elizungezile: -40℃ kuya ku-+55℃
Ukuphakama: ≤4000m (kungenziwa ngokwezifiso uhlobo oluphakeme)
III. Ukwakheka Komklamo (Ukuhlanganiswa Kwamajenela)
1. Igumbi eliphezulu lamandla
Ukucushwa: iyunithi eliyindilinga eliyinhloko elingu-10kV/35kV, ikhabethe lesishintshi somjikelezo, isishintshi somthwalo, i-PT, isivikeli sombani, idivayisi yokulinganisa
Umsebenzi: ukuxhuma kugridi, ukuvikelwa komugqa, ukulinganisa kwamandla aphezulu, ukuvikelwa kombani
2. Igumbi likatransformer
Transformer: i-transformer enamafutha enokulahlekelwa okuphansi, enomsindo ophansi, egcina amandla
Izici: ukulawula izinga lokushisa, ukuvikelwa kwezinga lamafutha, ivolovumu lokukhulula ingcindezi, ilungele izici zokukhiqiza amandla okuphazamisekayo kwe-photovoltaic
3. Igumbi eliphansi lamandla (ingqikithi ye-photovoltaic)
Ukugeleza komugqa wokungena we-Photovoltaic: ukuxhumana kokuphuma komshini wokuguqula iziteshi eziningi
Ukucushwa okubalulekile:
Isishintshi esiyinhloko samandla aphansi, ibhasi lethusi eliqoqa ugesi
Idivayisi yokuvimbela ukuhamba kukagesi okuphambene / isilawuli sokuxhuma kugridi
Isivikeli sokushaqeka kombani (SPD)
Ukulinganisa kwamandla, ukukhokhelwa kwamandla angalungile (kuyakhethwa)
Ukulinganisa nokulawula okuhlakaniphile, isikhombimsebenzisi sokuxhumana
4. Ikhabethe lokulawula elihlakaniphile
Isiphetho sokuvikela, ukulinganisa, nokulawula esihlanganisiwe esikhethekile se-photovoltaic
Ukusekelwa: ukubika okukude, ukulinganisa okukude, ukulawula okukude, ukulungisa okukude
Ukuxhumana: RS485, Ethernet, 4G/5G, IEC 61850, njll.
Ukufinyelela esiteshini samandla elanga esiqapha ipulatifomu, uhlelo lokuthumela
IV. Izici Zokusebenza Ezikhethekile Ze-Photovoltaic
1. Yenza kube lula ukwamukela ukukhiqizwa kukagesi we-photovoltaic okungapheli futhi okuguquguqukayo
I-transformer nemishini yokushintsha ingakwazi ukubekezelela ukuqala-ukuyeka njalo, ukushintsha kukagesi, umthelela wamandla kazibuthe we-DC bias, futhi isebenze ngokuzinzile.
2. Ukuqoqwa kwamandla aphansi ngemishayo eminingi, ukuhlanganiswa okuphezulu
Ingaxhuma izinhlobo eziningi zamabhokisi / ama-inverter ahlanganisiwe ngasikhathi sinye, kunciphisa ukusetshenziswa kwekhebula nokunciphisa ukulahleka komugqa.
3. Ukuvikelwa okuphezulu, okungahlali muntu ngaphandle
Ibhokisi aliboli, liyavikela elangeni, liyavimba imvula, futhi alihlanganisi amanzi, lilungele izindawo eziyinqaba njengezinkundla, izintaba, namachibi.
4. Ukuvikelwa okuphelele kokuxhunywa kugridi
Ifakwe imisebenzi eyisisekelo yokuxhuma ku-gridi ye-photovoltaic njengokuvikela ukushintsha kukagesi okungaphezulu, okungaphansi, ukushintsha kukagesi okungaphezulu, ukulayisha ngokweqile, amandla aphikisanayo, ukungajwayeleki kwemvamisa, kanye nokuvikela kwe-islanding.
5. Ukwakhiwa okusheshayo, izindleko eziphansi
Ukufakwa kwangaphambili efektri, ukuthuthwa okuphelele, kufuneka kuphela ukufakwa kwesisekelo nokuxhunywa kwekhebula endaweni, kunciphisa kakhulu isikhathi sokwakha.
6. Okuhlakaniphile, ukusebenza nokugcinwa okukude
Ukusekela ukuqapha amandla nogesi, isimo sesishintshi, izinga lokushisa lamafutha, isexwayiso sephutha, ukufeza ukungabi bikho komuntu.
V. Izigaba Ezijwayelekile
1. 10kV photovoltaic box transformer
Kusetshenziselwa amaphrojekthi amancane naphakathi kwe-photovoltaic, izindleko eziphansi, ukuhlelwa okuguquguqukayo.
2. 35kV photovoltaic box transformer
Okujwayelekile eziteshini zamandla elanga ezihlangene emhlabeni, ibanga elide lokudlulisa, ukulahlekelwa okuphansi.
3. Ibhokisi le-transformer lesitayela saseYurophu / ibhokisi le-transformer lesitayela saseShayina elakhiwe kusengaphambili
Isitayela saseYurophu: sivuthiwe futhi sithembekile, ukusebenza okuphezulu kwezindleko; ikhabethe elenziwe ngaphambili: isikhala esikhulu, ukudluliswa kokushisa okungcono, kufanele amaphrojekthi amakhulu wamandla.

VI. Isifinyezo sezimo ezisebenzayo
Ama-transformer ebhokisi le-photovoltaic angumshini obalulekile wokukhuphula ugesi nokuxhuma kugridi eziteshini zamandla e-photovoltaic. Anemingenelo efana nokuhlanganiswa okuphezulu, ukwakhiwa okusheshayo, ukwethembeka okuphezulu, kanye nokusebenza okulula nokugcinwa. Ayisikhonzi esijwayelekile sazo zonke izinhlobo zeziteshi zamandla e-photovoltaic njengamanje.