I-35kV Photovoltaic Combined Transformer/Isiteshi Esihlanganisiwe Esihlanganisiwe: Umhlahlandlela Ophelele Wokukhetha Nokusebenzisa Imishini Eyinhloko Yokuxhuma Igridi Yamandla Amasha

Amandla elanga, anezinqolobane zawo eziningi kanye nokusatshalaliswa kabanzi, angumthombo wamandla avuselelekayo othembisayo kakhulu ekhulwini lama-21. Njengoba izinkinga zomhlaba wonke ezifana nokuntuleka kwamandla kanye nokungcola kwemvelo ziya ngokuya zigqama, ukukhiqizwa kwamandla elanga e-photovoltaic kuye kwavela njengemboni ekhulayo eqakathekile ebekwe phambili amazwe emhlabeni jikelele, ngenxa yokuhlanzeka kwayo, ukuphepha, ukusebenziseka kalula kanye nokusebenza kahle okuphezulu. Eziteshini zamandla ze-photovoltaic ezinkulu neziphakathi, izisekelo ze-PV ezihlanganisiwe kanye namaphrojekthi okuhlanganisa isitoreji se-source-grid-load-storage,I-Transformer/Isiteshi Esihlanganisiwe Se-Photovoltaic Sabantu esingu-35kVyenza imisebenzi eyinhloko yokuguqulwa kwamandla, ukuqoqwa, ukukhushulwa, ukuvikelwa kanye nokulawula okuhlakaniphile. Isebenza njengedivayisi ebalulekile yehabhu exhumanisa ama-photovoltaic arrays, ama-inverter kanye negridi yamandla yomphakathi. Lesi sihloko sichaza ngokuhlelekile imisebenzi eyinhloko, izimo zohlelo lokusebenza, izinzuzo zokukhetha, izindlela zesayensi zokukhetha kanye nenani lokusebenzisa lomkhiqizo, sihlinzeka ngereferensi yobungcweti yokutshalwa kwezimali, ukuklama, ukwakhiwa kanye nokusebenza kanye nokugcinwa kweziteshi zamandla ze-photovoltaic.

I. Imisebenzi Eyinhloko ye-35kV Photovoltaic Combined Transformer/Preassembled Substation

Isiteshi Esihlanganisiwe Se-Photovoltaic Se-35kV/Isiteshi Esihlanganisiwe Se-People's sisebenzisa i-umklamo we-modular owenziwe kusengaphambili efektri, ohlanganiswe ngokugcwele futhi olungele ukufakwa, ehlanganisa izinhlelo ezintathu zesakhiwo: isiteshi esincane sesitayela saseMelika (isakhiwo se-ZGS-Z), isiteshi esincane sesitayela saseShayina (isakhiwo se-YBG) kanye nesiteshi esincane sesitayela saseYurophu (imodeli efanayo nesiteshi esincane sesitayela saseShayina). Ihlanganisa kakhulu ama-transformer esinyathelo, amadivayisi okusabalalisa aphezulu, amayunithi okusabalalisa aphansi, izinhlelo zokuvikela ukudluliselwa, amamojula okuqapha ahlakaniphile, izingxenye zesinxephezelo samandla asabelayo kanye nezinhlelo zokuvikela umbani kanye nokusekela phansi, yenza imisebenzi eminingi engenakuphikwa eziteshini zamandla ze-photovoltaic:

1.Ukwenyuka Kwamandla Nokudluliswa Kwebanga Elide

Ikhulisa ngokuzinzile ukukhishwa kwamandla okushintshana kwamandla aphansi (0.27kV/0.3kV/0.315kV/0.4kV) ngama-inverter e-photovoltaic kuya ku-35kV/36.75kV/38.5kV, kanti i-voltage ephezulu yokusebenza yohlangothi oluphezulu ifinyelela ku-40.5kV. Ihlangabezana nezidingo ze-voltage yokuxhumeka kwegridi, inciphisa kakhulu ukulahleka komugqa ngesikhathi sokudluliselwa kwamandla ebanga elide futhi ithuthukisa ukusebenza kahle kokudluliselwa kwamandla, ifanele izidingo zokudluliselwa kwamandla kwezisekelo ze-PV eziphakathi ezinomthamo osukela ku-1000kVA kuya ku-1250kVA.

2.Ukuhlanganiswa Kwesistimu Nokulawulwa Kokusatshalaliswa Kwamandla

Ihlanganisa imisebenzi efana nomugqa ongenayo we-voltage ephezulu, umugqa ophumayo we-voltage ephezulu, ukuvikelwa kwe-transformer, isikhombimsebenzisi sokuxhuma igridi ye-voltage ephansi kanye nokulinganisa amandla kagesi, ukuqoqwa okuphakathi, ukusatshalaliswa kanye nokulawulwa okuhlelekile kwamandla we-multi-circuit emasimini e-photovoltaic. Phakathi kwazo, isiteshi esincane sesitayela saseMelika sisebenzisa umklamo webhokisi elihlanganisiwe, sihlanganisa izingxenye eziyinhloko ezifana nokushintsha komthwalo kanye nama-fuse ethangini le-transformer ngesakhiwo esiqinile; iziteshi ezincane zesitayela saseShayina nezesitayela saseYurophu ziyiziteshi ezincane ezihlanganiswe kusengaphambili ezinesakhiwo esicacile sokuhlukanisa i-modular, esithatha indawo yemodi ehlukanisiwe yamadivayisi amaningi yeziteshi ezincane zendabuko zobunjiniyela bomphakathi futhi senza kube lula ukuxhumanisa uhlelo oluyinhloko nolwesibili.

3.Ukuvikelwa Okuphelele Kokuphepha

Yakhelwe ngaphakathi ngezingxenye ezintathu zokuvikela eziyinhloko:Iswishi yomthwalo efakwe uwoyela ophakeme yohlobo lwe-BYFI-40.5(isilinganiso samanje esingu-630A, impilo yesevisi yomshini izikhathi ezingu-2000, imvamisa yamandla imelana ne-voltage engu-95kV),I-fuse enamandla aphezulu yohlobo lwe-XRNT-40.5(amandla okuqeda i-short-circuit angu-31.5kA, ama-fuse angashintshwa kalula endaweni) kanyeIjazi lenjoloba le-silicon le-YH5WZ-51/134 lohlobo lwe-zinc oxide arrester(umklamo ongenazikhala, i-residual voltage yamanje okukhiphayo okungu-≤134kV, nokusebenza okuvikela ukuqhuma). Ihlanganiswe ne-logic yokuvikela njengokusebenzisa i-overcurrent, i-differential, i-zero-sequence, i-overtemperature kanye nokuvikela i-anti-islanding, isebenza ngokushesha ukunqamula i-fault circuit ngaphansi kwezimo zokusebenza ezifana nokulayisha ngokweqile, i-short circuit, i-insulation engavamile kanye ne-lightning impulse, iqinisekisa ukuphepha kwama-photovoltaic arrays, ama-inverter, i-substation uqobo kanye nemishini eseceleni kwegridi.

4.Ukusebenza Nokugcinwa Okuhlakaniphile kanye Nokubona Idatha

Ifakwe ukuqapha izinga lokushisa, ukuqapha ukukhishwa okuyingxenye kanye namamojula okuthola amapharamitha kagesi, asekela ukuxhumana kwe-multi-protocol ukuze kuxhunywe nepulatifomu yokuqapha isiteshi sikagesi, kufezekiswe ukulayishwa kwesimo sokusebenza ngesikhathi sangempela, isexwayiso sangaphambi kwesikhathi kanye nokuvula/ukuvala okude. Okwamanje, ilungiselelwe ngeIsiguquli sokukhanyisa nokulungisa sohlobo lwe-SG10ukuhlangabezana nesidingo sikagesi sokuhlolwa nokugcinwa kwemishini nsuku zonke, ukuthuthukisa ukulula kokusebenza nokugcinwa kwayo.

5.Ukuthuthukiswa Kwekhwalithi Yamandla

I-transformer isebenzisa amalebula eqembu lokuxhuma le-Yd11 kanye ne-d11, nge-impedance elawulwa ku-6.5%, icindezela ngempumelelo ukuphambuka kwe-harmonic. Isebenzisana namadivayisi okubuyisela amandla asebenzayo, ingazinzisa i-power factor engaphezu kuka-0.98, ihlangabezane nezindinganiso eziphoqelekile ze-GB/T 19964 zekhwalithi yamandla axhunywe kugridi ye-photovoltaic futhi igweme ukulinganiselwa kokukhiqiza igridi kanye nezinhlawulo zokuhlola.

II. Izimo Ezijwayelekile Zokusebenza

Lo mkhiqizo wenzelwe ngokukhethekile izimo ze-photovoltaic zangaphandle, kanti izimo zawo zokusebenza zemvelo zilinganiswe ngokuqinile, zihlanganisa lezi zimo ezilandelayo eziyinhloko:

1. Iziteshi Zamandla Ezine-Photovoltaic Eziphakathi Ezinkulu Ezingaphansi Komhlaba

Ifanelekela izisekelo ze-PV zasehlane, eGobi kanye nasebhishi ezinokuphakama okungu-≤1000m, izinga lokushisa elizungezile -25℃ ~ +45℃ kanye nesivinini somoya esingu-≤35m/s. Umthamo weyunithi eyodwa uhlanganisa i-1000kVA, i-1100kVA kanye ne-1250kVA, futhi amayunithi amaningi angaxhunywa ngesikhathi esisodwa ukuze kufezwe isinyathelo samandla esimaphakathi kanye nokudluliselwa. Imishini ihlangabezana nezidingo zebanga lokuzamazama komhlaba lokusheshisa okuvundlile okungu-0.3m/s² kanye nokusheshisa okuqondile okungu-0.15m/s², kanye nezinga lokuvimbela ukungcola elifinyelela ku-Level II, futhi ingamelana nezimo zezulu ezinzima nomoya onamandla kanye nesihlabathi nothuli.

2. Amaphrojekthi Okusebenzisa i-Photovoltaic + Okuphelele

Isetshenziswa kabanzi ezinhlotsheni ezihlanganisiwe ezifana nokuhambisana kwezolimo-i-photovoltaic, ukuhambisana kwe-fishery-photovoltaic kanye nokuhambisana kwe-forestry-photovoltaic. Ithangi likaphethiloli linezinga lokuvikelaI-IP68(iyakwazi ukusebenza uma icwiliswe emanzini), amakamelo kagesi aphezulu naphansi anezinga lokuvikela elingu-IP54, kanti igumbi elinama-voltage aphezulu lisagcina ukuvikelwa kwe-IP3X lapho umnyango uvuliwe. Lizivumelanisa nezimo ezikhethekile njengomswakama ophezulu, ukufuthwa ngosawoti kanye nokuqongelela amanzi. Ukufakwa kwemishini akuthathi indawo yokulima kanye nokuzalanisa, kufezwa "indawo eyodwa yokusetshenziswa okubili".

3. Amaphrojekthi amakhulu e-Photovoltaic Asatshalaliswa Ezindaweni Zezimboni Nezentengiselwano

Kumaphrojekthi e-photovoltaic asatshalaliswa angaphezu kuka-6MW emapaki ezimboni nasezindaweni ezinkulu zezentengiselwano, isiteshi esincane sesitayela saseMelika, esinezinzuzo zobukhulu obuncane, ukulahlekelwa okuncane kanye nokufakwa okulula, sifanelekela izindawo zophahla kanye nezindawo zasefektri; iziteshi ezincane zesitayela saseShayina nezesitayela saseYurophu zihlangabezana nezidingo zokwakha ezijwayelekile zeziteshi zamandla ezinkulu ezinokuhlanganiswa okuphezulu, okwenza ngokushesha zikwazi ukuzisebenzisa kanye nokuxhumeka kwegridi yamandla eningi.

4. Amaphrojekthi Ahlelwe Ngokwezifiso Ezindaweni Ezikhethekile

Ezimweni ezingaphezu kwezimo zokusebenza ezivamile njengokuphakama okuphezulu, ukubanda okukhulu kanye nokushisa okukhulu, umenzi anganikeza umklamo oqondene naye, njengokuthuthukisa izinga lokuvikela, ukwengeza uhlelo lokulawula izinga lokushisa lomoya ophoqelekile/likagesi kanye nokusebenzisa ungqimba oluqinile lokulwa nokugqwala, ukuzivumelanisa nokwakhiwa kweziteshi zamandla ezikhethekile ze-photovoltaic ezindaweni ezikude, eziqhingini nasezindaweni zezimayini.

III. Izinzuzo Eziyinhloko Zokukhetha Abantu I-35kV Photovoltaic Combined Transformer/Isiteshi Esingaphansi Esihlanganisiwe Sezinto Zikagesi

Uma kuqhathaniswa neziteshi ezincane zendabuko zobunjiniyela bomphakathi, iziteshi ezincane zebhokisi ezingama-10kV kanye nenhlanganisela yemishini ehlukile, umkhiqizo unezinzuzo ezibalulekile kwezobuchwepheshe, ezongayo, isikhathi sokwakha kanye nokuthembeka:

1. Amasu Amathathu Okwakha Ukuze Ahambisane Ngokunembile Nezidingo Zephrojekthi

●Isiteshi esincane sesitayela saseMelika (isakhiwo se-ZGS-Z): Umklamo we-co-box, onezingxenye ezihlanganiswe ethangini likaphethiloli, usayizi omncane, isisindo esilula kanye nesivinini sokufakwa okusheshayo, ofanele amaphrojekthi e-photovoltaic asatshalaliswa anesikhala esilinganiselwe. Ukulungiswa kwansuku zonke akudingi amathuluzi ochwepheshe, okunciphisa izindleko zokusebenza nokugcinwa.

●Isiteshi esincane sesitayela saseShayina/saseYurophu (isakhiwo se-YBG): Ukuhlelwa kwe-modular okulungiselelwe kusengaphambili, okunegumbi elinama-voltage aphezulu, igumbi le-transformer kanye negumbi elinama-voltage aphansi elihlukaniswe ngokuzimela, ukushabalalisa ukushisa okuhle kanye nokwanda okunamandla, okulungele izidingo zokwakha ezijwayelekile nezinkulu zeziteshi zamandla ezinkulu ze-photovoltaic eziphakathi.

2.Ukuhlanganiswa Okuphezulu, Kufinyeza Kakhulu Isikhathi Sokwakha

Yonke imishini ihlanganiswa, ixhunywe ngezintambo, inikwe umsebenzi futhi ihlolwe uhlobo efektri. Kudingeka ukwakhiwa kwesisekelo kuphela endaweni, ukuphakamisa okuhlanganisiwe, uxhumano lwekhebula kanye nokwamukelwa koxhumano lwegridi. Isikhathi sokwakha sifinyezwa ngo-60%—70% uma kuqhathaniswa nohlelo lwendabuko, okwenza kube lula ukuqalisa ukusebenza kwesiteshi sikagesi kanye nokukhiqizwa kukagesi, kanye nokuthuthukisa ukusebenza kahle kwemali engenayo.

3. Ukuzivumelanisa Nemvelo Okuqinile Kakhulu Kokusebenza Kwangaphandle Okuzinzile Kuzo Zonke Izimo Zezulu

Ikhabhini isebenzisa ukuvikela ukushisa okunezingqimba ezimbili kanye nesakhiwo sokulwa nokugqwala, kuhlanganiswe nethangi likaphethiloli le-IP68 eliphakeme, elingamelana nesimo sezulu esibi njengezikhukhula, ukufuthwa ngosawoti kanye nothuli lwesihlabathi. Ayidingi indawo yomshini wobunjiniyela bezakhiwo kanye nendawo enkulu ebiyelwe, efanelekile kakhulu ukusebenza isikhathi eside ezimweni zasensimini ezinganakiwe.

4. Umklamo Wokulahlekelwa Okuphansi Wokuthuthukisa Inzuzo Yomjikelezo Wokuphila Wonke Wesiteshi Sikagesi

Ukulahlekelwa umthwalo kanye nokulahlekelwa umthwalo kwe-transformer kungenziwa ngokwezifiso futhi kulungiselelwe ngokwezidingo zamakhasimende. Kuhlanganiswe nomklamo we-impedance ephansi, ukulahlekelwa ngokwakho kuncishiswa ngo-10%—20% uma kuqhathaniswa nezidingo ezijwayelekile zikazwelonke, okuthuthukisa imali engenayo kagesi yesiteshi sikagesi phakathi nesikhathi sokusebenza seminyaka engama-25.

5. Isiqinisekiso Esiphelele kanye Nesiqinisekiso Sesevisi

Umkhiqizo uphumelele isethi ephelele yezivivinyo zohlobo, futhi izinga lawo lokuvikela kanye nezinga lokumelana ne-voltage konke kuhlangabezana nezindinganiso zikazwelonke. Umenzi unikeza izinsizakalo zenqubo ephelele njengokulandwa kwedatha yokukhetha, ukwenza ngokwezifiso uhlelo lobuchwepheshe kanye nesiqondiso sokufakwa endaweni, kanye nocingo oluphuthumayo ngemuva kokuthengisa 400-898-1166 oluphendula ngokushesha ezidingweni zokusebenza nokugcinwa.