Kopo ea 1500Vdc tsamaisong ea photovoltaic
Ho fokotsa litšenyehelo le ts'ebetso e ntseng e eketseha esale e le tataiso ea boiteko ba batho ba motlakase
Tloaelo ea 1500VDC le khetho e ke keng ea qojoa ea sistimi ea bonngoe
Ho fokotsa litšenyehelo le ts'ebetso e ntseng e eketseha esale e le tataiso ea boiteko ba batho ba Motlakase. Har'a bona, karolo ea boqapi ba mahlale a morao-rao ke ea bohlokoa. Ho 2019, ka lithuso tse potlakileng tsa China, 1500Vdc e na le tšepo e kholo.
Ho latela tlhaiso-leseling ea IHS e tsoang mokhatlong oa lipatlisiso le tlhahlobo, sistimi ea 1500Vdc e ile ea hlahisoa ka lekhetlo la pele ho 2012, mme FirstSolar e tsetetse semela sa motlakase sa pele sa 1500Vdc lefatšeng ka 2014. Ka Pherekhong 2016, projeke ea pele ea ponts'o ea 1500Vdc Golmud Sunshine Qiheng New Energy Morero oa Phokotso ea Matla a Golmud 30MW Photovoltaic o ne o hokahantsoe ka molao le gridi bakeng sa tlhahiso ea motlakase, ho tšoaea hore ts'ebeliso ea lapeng ea 1500Vdc tsamaisong ea photovoltaic e hlile e kene mohatong oa lits'ebetso tse kholo tsa pontšo. Lilemo tse peli hamorao, ho 2018, theknoloji ea 1500Vdc e sebelisitsoe ka bongata machabeng le kahare. Har'a sehlopha sa boraro sa merero e etellang pele malapeng e qalileng ho aha ka 2018, projeke ea Golmud e nang le theko e tlase ka ho fetisisa (0.31 yuan / kWh), hammoho le merero ea GCL Delingha le Chint Baicheng kaofela li amohetse theknoloji ea 1500Vdc. Ha e bapisoa le sistimi ea 1000Vdc ea Photovoltaic, ts'ebeliso ea 11500Vdc tsamaisong ea photovoltaic e sebelisitsoe haholo haufinyane. Joale re ka ba le lipotso tse bonolo habonolo:
Hobaneng ha o eketsa motlakase ho tloha ho 1000Vdc ho isa ho 1500Vdc?
Ntle le inverter, na lisebelisoa tse ling tsa motlakase li ka mamella matla a phahameng a 1500Vdc?
Sistimi ea 1500Vdc e sebetsa hantle ha e sebelisoa?
1. Melemo ea litsebi le likotsi tsa ts'ebeliso ea 1500Vdc tsamaisong ea photovoltaic
tlhahlobo ea monyetla
1) Fokotsa palo ea lebokose le mateano le cable ea DC
Ho "Code for Design of Photovoltaic Power Plants (GB 50797-2012)", ho ts'oana ha li-module tsa photovoltaic le li-inverters ho lokela ho latela moralo o latelang: Ho latela foromo e kaholimo le mekhahlelo e loketseng ea likarolo, khoele ka 'ngoe ea sistimi ea 1000Vdc ka kakaretso ke likarolo tse 22, ha khoele ka 'ngoe ea sistimi ea 1500Vdc e ka lumella likarolo tse 32.
Ho nka mochini oa phepelo ea motlakase oa 285W mochini oa 2.5MW le inverter ea mohala e le mohlala, sistimi ea 1000Vdc:
Likhoele tse 408 tsa photovoltaic, lipara tse 816 tsa motheo oa qubu
Disete 34 tsa 75kW khoele inverter
Sistimi ea 1500Vdc:
Khoele ea lihlopha tse 280 tsa li-photovoltaic
Lipara tse 700 tsa metheo ea qubu
14 disete tsa 75kW khoele inverters
ha palo ea likhoele e fokotsehile, palo ea likhoele tsa DC tse hokahaneng lipakeng tsa likarolo le mehala ea AC lipakeng tsa likhoele le li-inverters li tla fokotseha.
2) Fokotsa tahlehelo ea mola oa DC
= P = IRI = P / U
Increases U eketseha ka makhetlo a 1.5 → Ke fetoha (1 / 1.5) → P ke 1 / 2.25
= R = ρL / S DC cable L e fetoha 0.67, makhetlo a 0.5 ho feta ea pele
R (1500Vdc) <0.67 R (1000Vdc)
Ka kakaretso, 1500VdcP ea karolo ea DC e ka ba makhetlo a 0.3 ho 1000VdcP.
3) Fokotsa palo e itseng ea boenjiniere le sekhahla sa ho hloleha
Ka lebaka la phokotso ea palo ea likhoele tsa DC le mabokose a mateano, palo ea lihokelo tsa thapo le likhoele tsa lebokose la mateano tse kentsoeng nakong ea kaho li tla fokotsoa, mme lintlha tsena tse peli li sekametse ho hloleha. Ka hona, 1500Vdc e ka fokotsa sekhahla se itseng sa ho hloleha.
4) Fokotsa matsete
Ho eketsa palo ea lisebelisoa tsa mohala o le mong ho ka fokotsa litšenyehelo tsa watt e le 'ngoe. Phapang e kholo ke palo ea metheo ea qubu, bolelele ba thapo kamora ho kopana ha DC, le palo ea mabokose a mateano (bohareng).
Ha e bapisoa le leano la likhoele tse 22 la sistimi ea 1000Vdc, leano la likhoele tse 32 la sistimi ea 1500Vdc le ka boloka lintlha tse ka bang 3.2 / W bakeng sa likhoele le metheo ea qubu.
Tlhahlobo ea bothata
1) Litlhoko tsa lisebelisoa tse eketsehileng
Ha e bapisoa le sistimi ea 1000Vdc, gagamalo e nyolohetse ho 1500Vdc e na le tšusumetso e kholo ho li-breaker, li-fuse, lisebelisoa tsa ts'ireletso ea lehalima le ho chencha phepelo ea motlakase, le ho beha pele litlhoko tse phahameng bakeng sa ho mamella gagamalo le ts'epahalo, 'me theko ea lisebelisoa e tla eketseha .
2) Litlhoko tse phahameng tsa polokeho
Kamora hore motlakase o nyolohele ho 1500Vdc, kotsi ea ho senyeha ha motlakase ea eketseha, ka hona e ntlafatsa ts'ireletso ea ts'ireletso le tumello ea motlakase. Ntle le moo, hang ha kotsi e hlaha lehlakoreng la DC, e tla tobana le mathata a tebileng a ho felloa ke matla ha DC. Ka hona, sistimi ea 1500Vdc e eketsa litlhoko tsa ts'ireletso ea ts'ireletso.
3) Eketsa monyetla oa phello ea PID
Kamora hore li-module tsa photovoltaic li hokahane ka tatellano, hona joale ho dutla ho thehiloe lipakeng tsa lisele tsa module ea voltage e phahameng le mobu ke sesosa sa bohlokoa sa phello ea PID. Kamora hore motlakase o nyolloe ho tloha ho 1000Vdc ho isa ho 1500Vdc, ho hlakile hore phapang ea motlakase lipakeng tsa sele le lefatše e tla eketseha, e leng ho tla eketsa monyetla oa phello ea PID.
4) Eketsa tahlehelo e tšoanang
Ho na le tahlehelo e itseng ea ho bapisoa lipakeng tsa likhoele tsa photovoltaic, haholo-holo tse bakoang ke mabaka a latelang:
- Matla a feme ea li-module tse fapaneng tsa photovoltaic a tla ba le kheloho ea 0 ~ 3%. Mapetso a entsoeng nakong ea lipalangoang le ho kenya a tla baka ho kheloha ha motlakase.
- Ho khutsufatsa ho sa lekanang le ho thibela ho sa lekanang kamora ho kenya ho tla baka phapang ea motlakase.
- Ka lebaka la lintlha tse kaholimo, ho eketsa khoele ka 'ngoe ho tloha ho likarolo tse 22 ho ea ho tse 32 ho hlakisa hore ho tla eketsa tahlehelo e tšoanang.
- Ho arabela mathata a kaholimo a 1500V, kamora lilemo tse ka bang peli tsa lipatlisiso le lipatlisiso, lik'hamphani tsa lisebelisoa le tsona li ntlafalitse.
Ea bobeli, lisebelisoa tsa mantlha tsa 1500Vdc photovoltaic system
1. Mojule oa Photovoltaic
Pele Solar, Artus, Tianhe, Yingli, le lik'hamphani tse ling li ile tsa etella pele ho tsebiseng li-module tsa photovoltaic tsa 1500Vdc.
Ho tloha ha setsi sa pele sa motlakase sa 1500Vdc sa photovoltaic se phethetsoe ka 2014, bophahamo ba kopo ea litsamaiso tsa 1500V bo ntse bo tsoela pele ho hola. E tsamaisoa ke boemo bona, maemo a IEC a qalile ho kenyelletsa litlhaloso tse amanang le 1500V ts'ebetsong ea maemo a macha. Ka 2016, IEC 61215 (bakeng sa C-Si), IEC 61646 (bakeng sa lifilimi tse tšesaane), le IEC61730 ke litekanyetso tsa polokeho ea karolo tlasa 1500V. Litekanyetso tsena tse tharo li tlatselletsa liteko tsa ts'ebetso ea liteko le polokeho tsa sistimi ea karolo ea 1500V mme li roba tšitiso ea hoqetela ea litlhoko tsa 1500V, tse khothalletsang haholo ho latela litekanyetso tsa seteishene sa motlakase sa 1500V.
Hajoale, baetsi ba mola oa pele oa China ba phatlalalitse lihlahisoa tse holileng tsa 1500V, ho kenyeletsoa likarolo tse nang le mahlakore a le mong, likarolo tse mahlakore a mabeli, likarolo tsa likhalase tse peli, mme ba fumane setifikeiti se amanang le IEC.
Ho arabela bothata ba PID ba lihlahisoa tsa 1500V, baetsi ba hona joale ba tloaelehileng ba nka mehato e 'meli e latelang ho netefatsa hore ts'ebetso ea PID ea likarolo tsa 1500V le likarolo tse tloaelehileng tsa 1000V li lula maemong a le mang.
1) Ka ho ntlafatsa lebokose la mateano le ho ntlafatsa moralo oa sebopeho sa karolo ho fihlela litlhoko tsa sebaka sa 1500V le litlhoko tsa tumello;
2) Botenya ba thepa ea mokokotlo bo eketsoa ka 40% ho ntlafatsa sekhahla le ho netefatsa polokeho ea likarolo;
Bakeng sa phello ea PID, moetsi e mong le e mong o tiisa hore tlasa sistimi ea 1500V, karolo e ntse e tiisa hore thibelo ea PID e ka tlase ho 5%, ho netefatsa hore ts'ebetso ea PID ea karolo e tloaelehileng e lula maemong a le mang.
2. Sekhahla
Baetsi ba mose ho maoatle joalo ka SMA / GE / PE / INGETEAM / TEMIC ka kakaretso ba hlahisitse tharollo ea li-inverter tsa 1500V ho pota 2015. Baetsi ba bangata ba malapeng ba qalile ho hlahisa lihlahisoa tsa inverter tse ipapisitseng le letoto la 1500V, joalo ka Sungrow SG3125, letoto la SUN2000HA la Huawei, jj. ke tsa pele tse lokolloang 'marakeng oa Amerika.
NB / T 32004: 2013 ke tekanyetso eo lihlahisoa tsa inverter tsa lapeng li tlamehang ho li fihlela ha li rekisoa. Boemo bo sebetsang ba maemo a ntlafalitsoeng ke sesebelisoa se kopantsoeng le marang-rang se kopantsoeng le potoloho ea mohloli oa PV se nang le motlakase o sa feteng 1500V DC le motlakase o tsoang ho AC o sa feteng 1000V. Tekanyetso ka boeona e se e ntse e kenyelletsa mokokotlo oa DC 1500V mme e fana ka litlhoko tsa tlhahlobo bakeng sa khatello ea potoloho ea PV, tumello ea motlakase, sebaka sa creepage, maqhubu a matla a mamellang motlakase, le liteko tse ling.
3. Lebokose le kopantseng
Litekanyetso bakeng sa lebokose le kopantseng le sesebelisoa se seng le se seng sa senotlolo li se li lokile, 'me 1500Vdc e kentse standard standard ea CGC / GF 037: 2014 "Photovoltaic combiner Equipment technical specifications".
4. Khebole
Hajoale, tekanyetso ea 1500V ea likhoele tsa photovoltaic le eona e se e hlahisitsoe.
5. Ts'ireletso ea switch le lehalima
Indastering ea photovoltaic nakong ea 1100Vdc, motlakase o hlahisang inverter o fihlile ho 500Vac. O ka alima sistimi e tloaelehileng ea switch switch ea 690Vac le lihlahisoa tse tšehetsang; ho tloha 380Vac voltage ho ea ho 500Vac voltage, ha ho na bothata ba switch switch. Leha ho le joalo, mathoasong a selemo sa 2015, indasteri eohle ea phepelo ea motlakase le motlakase e ne e sena li-switch tsa phepelo ea motlakase tsa 800Vac / 1000Vac le lintlha tse ling, tse bakang mathata a ho ts'ehetsa sehlahisoa sohle le litšenyehelo tse phahameng tsa tšehetso.
Tlhaloso e phethahetseng
Sistimi ea photovoltaic ea 1500Vdc e sebelisitsoe haholo mose ho maoatle mme e se e ntse e le theknoloji e holileng ea ts'ebeliso lefats'eng ka bophara.
Ka hona, lisebelisoa tsa mantlha tsa sistimi ea photovoltaic li fihletse tlhahiso ea bongata, 'me theko e theohile haholo ha e bapisoa le sethala sa lipontšo ho 2016.
Kopo ea 1500Vdc tsamaisong ea photovoltaic
Joalokaha ho boletsoe kaholimo, sistimi ea photovoltaic ea 1500Vdc e sebelisitsoe kantle ho naha ho tloha 2014 ka lebaka la theko ea eona e tlase le phepelo e phahameng ea motlakase.
Kopo ea Global 1500Vdc nyeoeng ea tlhahlobo ea sistimi ea photovoltaic
Letsatsi la pele la letsatsi le phatlalalitse ka Mots'eanong 2014 hore semela sa pele sa motlakase sa 1500Vdc se hahiloeng Deming, New Mexico se sebelisitsoe. Bokhoni bo felletseng ba seteishene sa motlakase ke 52MW, likarolo tse 34 li amohela sebopeho sa 1000Vdc, 'me tse setseng li amohela sebopeho sa 1500Vdc.
SMA e phatlalalitse ka Phupu 2014 hore polante ea eona ea motlakase ea photovoltaic ea 3.2MW e hahiloeng serapeng sa indasteri ea Sandershauser Berg ho Niestetal, Kassel, leboea ho Jeremane e se e sebelisitsoe, mme setsi sa motlakase se sebelisa sistimi ea 1500Vdc.
1500Vdc e sebelisitsoe haholo mererong e theko e tlase
Hajoale, LSP e tsoetse pele ka katleho T1 + T2 Sehlopha sa B + C, Sehlopha sa I + II PV se sirelletsang sesebelisoa sa SPD 1500Vdc, 1200Vdc, 1000Vdc, 600Vdc li sebelisoa haholo ho fehla motlakase oa letsatsi oa motlakase.
Kopo e kholo ea 1500Vdc tsamaisong ea photovoltaic
Ka lekhetlo la pele, projeke ea phepelo ea motlakase ea photovoltaic ea 257 MW ea Fu An Hua Hui e Vietnam e ile ea hokeloa ka katleho ho gridi. Litharollo tsohle tse kopantsoeng tsa mofuta oa inverter tsa mofuta oa inverter tsa mofuta oa 1500V li sebelisitsoe ho atleha ho fihlela kamohelo ho tsoa ho moralo, kaho ho khokahano ea gridi. Morero o teng Toropong ea Huahui, Seterekeng sa Fuhua, Profinseng ea Phu An, Vietnam, 'me ke oa libaka tse bohareng le tse ka boroa tsa lebopo. Ha ho nahanoa ka tikoloho ea tikoloho le moruo oa projeke, moreki oa projeke qetellong o ile a khetha tharollo e kopaneng ea mofuta oa sesebelisoa sa 1500V.
Tharollo e tšepahalang
Morerong oa seteishene sa motlakase sa motlakase, bareki ba na le litlhoko tse tiileng bakeng sa kaho le boleng ba sehlahisoa. Bokhoni ba ho kenya morero ka lehlakoreng la DC la projeke ke 257 MW, e nang le li-1032 tsa li-box tsa li-combiner tsa 1500V DC, li-inverters tse bohareng tsa 86Vdc 1500MW, li-2.5 tsa li-transform tsa voltage tse mahareng tsa 43MVA le litharollo tse kopaneng tsa container bakeng sa likhabinete tsa marang-rang a llang, ho etsa hore ho be bonolo Ho kenya le ho kenya chelete ho ka khutsufatsa potoloho ea kaho le ho fokotsa litšenyehelo tsa sistimi.
Tharollo ea 1500V e tlisa "theknoloji e kholo"
Tharollo e kopaneng ea mofuta oa inverter ea mofuta oa inverter ea 1500V e na le litšobotsi tsa 1500V, boholo ba lisekoere, karolelano ea bokhoni bo phahameng, inverter e matla haholo, matlafatso a inverter a kopaneng, jj., E fokotsang litšenyehelo tsa lisebelisoa tse joalo ka likhoele le mabokose a mateano. Litsenyehelo tse qalileng tsa ho tsetela. Haholo-holo, moralo o phahameng oa karo-karolelano ea bokhoni o ntlafatsa ka botlalo sekhahla sa ts'ebeliso ea likhoele le ho beha sekhahla se lekaneng sa bokhoni ka ho fana ka ts'ebetso e fetelletseng ho etsa hore sistimi ea LCOE e sebetse hantle.
Tharollo ea 1500VDC e sebelisoa mererong ea photovoltaic e fetang 900MW Vietnam. Vietnam Fu An Hua Hui 257MW photovoltaic projeke ke projeke e le 'ngoe e kholo ka ho fetisisa ea seteishene sa motlakase. Ha sehlopha sa pele sa merero e mecha ea ponts'o ea matla Vietnam, kamora hore projeke e kenngoe tšebetsong, e tla ntlafatsa sebopeho sa matla a Vietnam, e nolofatse bothata ba khaello ea motlakase Vietnam e ka boroa, hape e khothaletse nts'etsopele ea moruo le phedisano ho Vietnam E bohlokoa haholo.
Na ts'ebeliso ea 1500Vdc tsamaisong ea photovoltaic e ntse e le hole le kholo?
Ha e bapisoa le sistimi ea photovoltaic ea 1000Vdc e sebelisoang haholo liteisheneng tsa motlakase tsa motlakase, lipatlisiso tsa ts'ebeliso ea 1500Vdc tsamaisong ea photovoltaic e etelletsoeng pele ke baetsi ba inverter haufinyane e fetohile sebaka se chesang sa mahlale a indasteri.
Ho bonolo ho ba le lipotso tse kang tsena:
Hobaneng u phahamisa motlakase ho tloha ho 1000Vdc ho isa ho 1500Vdc?
Ntle le inverter, na lisebelisoa tse ling tsa motlakase li ka mamella matla a phahameng a 1500Vdc?
Na ho na le motho ea sebelisang sistimi ea 1500Vdc hona joale? Phello e joang?
Melemo ea Tekheniki le Mathata a ts'ebeliso ea 1500Vdc ts'ebetsong ea photovoltaic
1. Molemo Analysis
1) Fokotsa ts'ebeliso ea mabokose a kopanyang le likhoele tsa DC. Mohala o mong le o mong oa sistimi ea 1000Vdc ka kakaretso ke likarolo tse 22, ha khoele ka 'ngoe ea sistimi ea 1500VDC e ka lumella likarolo tse 32. Nka mochini oa motlakase oa 265W 1MW e le mohlala,
Sistimi ea 1000Vdc: likhoele tse 176 tsa photovoltaic le mabokose a 12 a kopanyang;
Sistimi ea 1500Vdc: likhoele tse 118 tsa photovoltaic le mabokose a 8 a kopanyang;
Ka hona, palo ea likhoele tsa DC ho tloha li-module tsa photovoltaic ho ea lebokoseng la combiner e ka ba makhetlo a 0.67, mme bongata ba likhoele tsa DC ho tloha lebokoseng la combiner ho isa inverter li makhetlo a ka bang 0.5.
2) Fokotsa tahlehelo ea mola oa DC lossP tahlehelo = thapo ea I2R I = P / U
IncreasesU e eketseha ka makhetlo a 1.5 → Ke fetoha (1 / 1.5) → P tahlehelo e ba 1 / 2.25
Ntle le moo, R cable = ρL / S, L ea thapo ea DC e fetoha makhetlo a 0.67, 0.5 a mantlha
R cable cable (1500Vdc) <0.67R cable (1000Vdc)
Ka kakaretso, tahlehelo ea 1500VdcP ea karolo ea DC e ka ba makhetlo a 0.3 a tahlehelo ea 1000VdcP.
3) Fokotsa palo e itseng ea boenjiniere le sekhahla sa ho hloleha
Ha palo ea likhoele tsa DC le mabokose a kopanyang a fokotseha, palo ea likhokahano tsa thapo le wiring ea lebokose la combiner e kentsoeng nakong ea kaho e tla fokotseha, mme lintlha tsena tse peli li sekametse ho hloleha. Ka hona, 1500Vdc e ka fokotsa sekhahla se itseng sa ho hloleha.
2. tlhahlobo ea mathata
1) Keketseho ea litlhokahalo tsa lisebelisoa Ha ho bapisoa le sistimi ea 1000Vdc, ho eketsa motlakase ho 1500Vdc ho na le tšusumetso e kholo ho li-breaker tsa motlakase, li-fuse, lits'oants'o tsa lehalima le ho chencha phepelo ea motlakase, mme e beha pele litlhoko tse phahameng tsa motlakase le ts'epahalo. ntlafatsa.
2) Litlhoko tse phahameng tsa polokeho Kamora hore matla a motlakase a nyolohele ho 1500Vdc, kotsi ea ho senyeha ha motlakase le ho tsoa ha eona e eketsehile e le hore ts'ireletso ea ts'ireletso le tumello ea motlakase e ntlafatsoe. Ntle le moo, haeba kotsi e hlaha ka lehlakoreng la DC, e tla tobana le bothata bo tebileng ba ho tima tsa arc ea DC. Ka hona, sistimi ea 1500Vdc e phahamisa litlhoko tsa sistimi bakeng sa ts'ireletso ea polokeho.
3) Ho eketsa phello e ka bang teng ea PID Kamora hore li-module tsa PV li hokahane ka tatellano, hona joale ho dutla ho thehiloe lipakeng tsa lisele tsa li-voltage tse phahameng le mobu ke lebaka la bohlokoa la phello ea PID (bakeng sa litlhaloso tse qaqileng, ka kopo araba "103 ”Ka bokamorao). Kamora hore motlakase o nyolloe ho tloha ho 1000Vdc ho isa ho 1500Vdc, ho hlakile hore phapang ea motlakase lipakeng tsa chip chip le lefatše e tla eketseha, e leng ho tla eketsa monyetla oa phello ea PID.
4) Ho eketsa tahlehelo e lekanang Ho na le tahlehelo e ts'oanang pakeng tsa likhoele tsa photovoltaic, tse bakoang haholo ke mabaka a latelang:
Matla a feme ea li-module tse fapaneng tsa photovoltaic a tla ba le kheloho ea 0 ~ 3%.
Mapetso a patiloeng a entsoeng nakong ea lipalangoang le ho kenya a tla baka ho kheloha ha motlakase
Ho khutsufatsa ho sa lekanang le ho sirelletsa ho sa lekanang kamora ho kenya ho tla baka phapang ea motlakase.
Ka lebaka la lintlha tse kaholimo, ho eketsa khoele ka 'ngoe ho tloha ho likarolo tse 22 ho ea ho tse 32 ho hlakisa hore ho tla eketsa tahlehelo e tšoanang.
3. Tlhatlhobo e felletseng Tlhatlhamisong e kaholimo, ke bokae 1500Vdc e ka bapisoang le 1000Vdc e ka ntlafatsang ts'ebetso ea litšenyehelo, 'me lipalo tse ling lia hlokahala.
Selelekela: Ha ho bapisoa le sistimi ea photovoltaic ea 1000Vdc e sebelisoang haholo lijalong tsa motlakase tsa motlakase, lipatlisiso tsa ts'ebeliso ea 1500Vdc tsamaisong ea photovoltaic e etelletsoeng pele ke baetsi ba inverter e se e le setsi sa mahlale sa indasteri haufinyane. Joale re ka ba le lipotso tse joalo habonolo.
Ea bobeli, lisebelisoa tsa mantlha tsa sistimi ea photovoltaic ho 1500Vdc
1) Li-module tsa Photovoltaic Hajoale, FirstSolar, Artes, Trina, Yingli, le lik'hamphani tse ling li phatlalalitse li-module tsa photovoltaic tsa 1500Vdc, ho kenyeletsoa li-module tse tloaelehileng le li-module tsa khalase tse habeli.
2) Inverter Hajoale, baetsi ba mantlha ba phatlalalitse li-inverters tsa 1500Vdc tse nang le matla a 1MVA ~ 4MVA, tse sebelisitsoeng liteisheneng tsa matla a pontšo. Boemo ba motlakase oa 1500Vdc bo koahetsoe ke litekanyetso tse amehang tsa IEC.
3) Litekanyetso tsa mabokose a kopanyang le likarolo tse ling tsa bohlokoa Mabokose a kopantseng le likarolo tsa bohlokoa li se li lokiselitsoe, 'me 1500Vdc e kentse tekanyetso ea setifikeiti sa lebokose la CGC / GF037: 2014 "Litlhaloso tsa Tekheniki bakeng sa Lisebelisoa tse Kopaneng tsa Photovoltaic"; 1500Vdc e hlakisitsoe ke litekanyetso tse ngata tsa IEC e le tsa sehlopha sa litaelo tse tlase tsa motlakase, joalo ka litekanyetso tsa likhetsi tsa potoloho IEC61439-1 le IEC60439-1, li-fuse tse khethehileng tsa photovoltaic IEC60269-6, le lisebelisoa tse khethehileng tsa ts'ireletso ea lehalima tsa photovoltaic EN50539-11 / -12 .
Leha ho le joalo, kaha sistimi ea photovoltaic ea 1500Vdc e ntse e le mothating oa pontšo mme tlhoko ea mmaraka e na le moeli, lisebelisoa tse boletsoeng kaholimo ha li so qale tlhahiso ea bongata.
Kopo ea 1500Vdc tsamaisong ea photovoltaic
1. Macho Springs Seteishene sa Matla a Letsatsi
Firstsolar e phatlalalitse ka Mots'eanong 2014 hore seteishene sa pele sa motlakase sa 1500Vdc se phethetsoeng Deming, NewMexico se ile sa sebelisoa. Matla ohle a seteishene sa motlakase ke 52MW, li-arrays tse 34 li sebelisa sebopeho sa 1000Vdc, 'me tse setseng li sebelisa sebopeho sa 1500Vdc.
SMA e phatlalalitse ka Phupu 2014 hore setsi sa eona sa motlakase sa 3.2MW sa photovoltaic se Sandershauser Bergindustrialpark, serapa sa indasteri se Niestetal, Kassel, Jeremane Leboea, se sebelisitsoe. Semela sa motlakase se sebelisa sistimi ea 1500Vdc.
2. Linyeoe tsa kopo China
Morero oa Golmud Sunshine Qiheng Energy Energy Golmud 30MW Photovoltaic
Ka Pherekhong 2016, projeke ea pele ea lapeng ea 1500Vdc photovoltaic ea phepelo ea motlakase, projeke ea phepelo ea motlakase ea Golmud Sunshine Qiheng New Energy Golmud 30MW, e ne e hoketsoe ka molao ho grid bakeng sa ho fehla motlakase, ho tšoaea hore sistimi ea malapeng ea 1500Vdc photovoltaic e hlile e kene sethaleng sa ts'ebeliso ea lipontšo.
Nts'etsopele ea lihlahisoa tsa photovoltaic tse amanang le 1500V e se e le tloaelo
Lisebelisoa tsa Photovoltaic le lisebelisoa tsa motlakase litsing tsa hajoale tsa letsatsi tsa li-photovoltaic li entsoe le ho etsoa ho latela litlhoko tsa motlakase oa DC tsa 1000V. Bakeng sa ho fihlela chai e ntle ea litsamaiso tsa photovoltaic, katleho e hlokahala ka potlako molemong oa phokotso ea lithuso tsa Photovoltaic bakeng sa litjeo tsa eona tsa tlhahiso ea motlakase le ts'ebetso. Ka hona, nts'etsopele ea lihlahisoa tse amanang le photovoltaic tse 1500V e se e le tloaelo. Lisebelisoa tsa motlakase tse phahameng tsa 1500V le lisebelisoa tsa motlakase tse tšehetsang ho bolela litšenyehelo tse tlase tsa sistimi le ts'ebetso e phahameng ea ho fehla motlakase. Ho hlahisa thepa le theknoloji ena e ncha ho ka etsa hore indasteri ea photovoltaic butle-butle e tlose ho itšetleha ka lithuso le ho fihlela phihlello ea marang-rang qalong. Litlhokahalo tsa 1500V tsa li-module tsa letsatsi tsa li-photovoltaic, li-inverters, likhoele, mabokose a kopanyang le ntlafatso ea sistimi ”
Lisebelisoa tse amehang tsa mantlha tsa sistimi ea 1500V li bonts'itsoe kaholimo. Litlhoko tsa 1500V bakeng sa sesebelisoa ka seng li fetohile hantle:
Karolo ea 1500V
• Moralo oa likarolo o fetotsoe, o hlokang sebaka se phahameng sa likaroloana tsa likarolo;
• Liphetoho tsa thepa, ho eketsa litlhoko tsa lisebelisoa le liteko bakeng sa sefofane;
• Keketseho ea litlhoko tsa tlhahlobo bakeng sa ho koala likarolo, ho hanela motlakase, ho dutla ho metsi, le pulse;
• Litsenyehelo tsa likarolo li bataletse mme ts'ebetso e ntlafalitsoe;
• Hajoale ho na le maemo a IEC bakeng sa likarolo tsa sistimi ea 1500Vdc. Joalo ka IEC 61215 / IEC 61730;
• Lisebelisoa tsa sistimi ea 1500Vdc ea baetsi ba mantlha ba fetisitse mangolo a nepahetseng le liteko tsa ts'ebetso ea PID.
Thapo ea 1500V DC
• Ho na le phapang pakeng tsa ho koala, botenya ba selaka, ellipticity, ho itšireletsa ka mocheso, ho eketsa mocheso, ho fafatsa letsoai, le teko ea ho hanyetsa mosi, le teko ea ho chesa toloki.
Lebokose le kopanyang la 1500V
• Litlhoko tsa liteko bakeng sa tumello ea motlakase le sebaka sa creepage, matla a maqhubu a matla le tšusumetso e matla ea ho mamella matla a ho hanela motlakase le motlakase;
• Ho na le liphapano ho batho ba ts'oereng lehalima, ba potoloho ba potoloho, li-fuse, likhoele, mehloli e iphehlang, li-diode tse loantšang matla le lihokelo.
• Litekanyetso tsa mabokose a kopanyang le likarolo tsa bohlokoa li se li le teng.
Inverter ea 1500V
• Ho ts'oaroa ha lehalima, maqhubu a potoloho, li-fuse le phepelo ea motlakase li fapane;
• Ho kenya tšireletso ea metsi, ho se sebelise motlakase le ho qhalana ha motlakase ho senyehang ho bakoang ke ho phahama ha motlakase
• Boemo ba motlakase ba 1500V bo koahetsoe ke maemo a amehang a IEC.
Sistimi ea 1500V
Moralong oa likhoele tsa sistimi ea 1500V, likarolo tsa mohala ka mong oa 1000V e ne e le 18-22, 'me joale sistimi ea 1500V e tla eketsa haholo palo ea likarolo letotong ho ea 32-34, e etse likhoele tse ngata tlase mme e fetohe nnete.
Sistimi ea hajoale ea tlhahiso ea motlakase ea photovoltaic, DC-side voltage 450-1000V, AC-side voltage 270-360V; Sistimi ea 1500V, palo ea likaroloana tse le 'ngoe ea likhoele e eketsehile ka 50%, DC-side voltage 900-1500V, AC-side 400-1000V, eseng feela tahlehelo ea mola oa DC e fokotsehang Tahlehelo ea mola lehlakoreng la AC e theohile haholo. Litlhokahalo tsa 1500V tsa lisebelisoa, liinverter, likhoele, mabokose a kopanyang le ntlafatso ea sistimi ”
Mabapi le li-inverters, li-inverters tse bohareng tsa 1MW li sebelisitsoe nakong e fetileng, 'me joale li ka holisoa ho li-inverters tsa 2.5MW kamora ho sebelisa sistimi ea 1500V; 'me matla a lekantsoeng a lehlakoreng la AC a eketseha. Li-inverters tsa matla a ts'oanang le lehlakore la AC Phokotso ea tlhahiso e fokotsehileng e thusa ho fokotsa litšenyehelo tsa inverter.
Ka lipalo tse felletseng, kamora ntlafatso ea tekheniki ea sistimi ea 1500V, litjeo tsa sistimi e ka fokotsoa ka lisente tse ka bang 2, mme ts'ebetso ea sistimi e ka ntlafatsoa ka 2%. Kahoo ts'ebeliso ea sistimi ea 1500V e thusa haholo ho fokotsa litšenyehelo tsa sistimi.
Ka ho sebelisa sistimi ea 1500V, palo ea likarolo tsa letoto e ea eketseha, palo ea likhokahano tse tšoanang e ea fokotseha, palo ea likhoele ea fokotseha, 'me palo ea lihokelo le liinverters ea fokotseha. Matla a eketseha, tahlehelo ea fokotseha, 'me tšebetso e ntlafalitsoe. Ho fokotseha ha mosebetsi oa ho kenya le ho hlokomela le hona ho fokotsa litšenyehelo tsa ho kenya le ho hlokomela. Sena se ka fokotsa litheko tsa boleng ba motlakase ba LCOE.
Tloaelo e kholo! Sistimi ea 1500V ea Photovoltaic e potlakisa ho fihla ha mehla ea parity
Ho 2019, ka liphetoho tsa maano a photovoltaic, indasteri e ikemiselitse ho fokotsa litšenyehelo tsa motlakase, mme ke mokhoa o ke keng oa qojoa oa ho fihlella phihlello e fumanehang ea inthanete. Ka hona, boqapi ba mahlale ke tšibollo, ho fokotsa litjeo tsa motlakase le ho fokotsa ho itšetleha ka lithuso e se e le tataiso e ncha bakeng sa nts'etsopele e ntle ea indasteri ea photovoltaic. Ka nako e ts'oanang, China, joalo ka moetsi ea ka sehloohong oa indasteri ea Photovoltaic, e thusitse linaha tse ngata ho fihlela bonngoe ho Internet, empa e ntse e le hole le bonngoe ba inthanete ka mabaka a fapaneng.
Lebaka le ka sehloohong leo 'maraka oa Photovoltaic o mose ho maoatle o ka fihlelang bonngoe ke hore ntle le melemo ea China mabapi le lichelete, mobu, phihlello, mabone, litheko tsa motlakase, jj., Ntlha ea bohlokoa le lithuto tseo re ithutileng tsona ke hore Chaena e feta tsoetse pele. Mohlala, sistimi ea photovoltaic e nang le voltage ea 1500V. Hajoale, lihlahisoa tse amanang le voltage tsa 1500V li fetohile tharollo ea mantlha bakeng sa mmaraka oa mose ho maoatle oa lifoto. Ka hona, li-photovoltaics tsa lapeng li lokela ho shebana le boiphihlelo ba maemo a sistimi, ho akofisa ts'ebeliso ea 1500V le mahlale a mang a tsoetseng pele, ho hlokomela phokotso ea litšenyehelo, katleho le ntlafatso ea boleng ba liteishene tsa motlakase, le ho khothaletsa indasteri ea photovoltaic ka botlalo ho ea mehleng ea parity.
Maqhubu a 1500V a fietse lefatše
Ho latela tlaleho ea IHS, ts'ebeliso ea pele ea tlhahiso ea sistimi ea 1500V e qalile ho 2012. Ka 2014, FirstSolar e tsetetse polanteng ea motlakase ea pele ea 1500V. Ho latela palo ea FirstSolar: Seteishene sa motlakase sa photovoltaic sa 1500V se fokotsa palo ea lipotoloho tse tšoanang ka ho eketsa palo ea li-module tsa photovoltaic; fokotsa palo ea mabokose a mateano le likhoele; ka nako e ts'oanang, ha motlakase o eketseha, tahlehelo ea cable e fokotseha hape, mme ts'ebetso ea motlakase ea sistimi e ntlafalitsoe.
Ka 2015, moetsi oa China ea etellang pele oa inverter Sunshine Power o ile a etella pele ho nts'etsapele tharollo ea sistimi e ipapisitse le moralo oa inverter oa 1500V indastering, empa hobane likarolo tse ling tse tšehetsang ha li a theha ketane e felletseng ea indasteri China, mme lik'hamphani tsa matsete li na le tlhokomeliso e fokolang ka sena Sebakeng sa ho etelletsa pele katoloso ea mose ho maoatle kamora papatso e kholo ea malapeng, e ile ea "hlōla" lefats'e pele mme ea khutlela mmarakeng oa China.
Ho latela pono ea mmaraka oa lefats'e, sistimi ea 1500V e fetohile boemo bo hlokahalang bakeng sa merero e meholo ea photovoltaic ho fokotsa litšenyehelo le ho eketsa ts'ebetso. Linaheng tse nang le litheko tse tlase tsa motlakase joalo ka India le Latin America, liteishene tsa motlakase tse kholo tsa lefatše li batla li amohela merero ea likopo ea 1500V; linaha tse nang le mebaraka ea motlakase e tsoetseng pele Europe le United States li fetotse motlakase oa DC ho tloha litsing tse 1000V tsa photovoltaic ho ea 1500V; limmaraka tse hlahang tse kang Vietnam le Middle East li kene ka kotloloho litsamaisong tsa 1500V. Ke habohlokoa ho hlokomela hore projeke ea li-photovoltaic ea volt ea 1500-volt e sebelisoa lefats'eng ka bophara mme e 'nile ea beha rekoto khafetsa ka litefiso tsa motlakase tse tlase haholo.
United States, matla a kentsoeng a lisebelisoa tsa 1500Vdc ka 2016 e bile 30.5%. Ka 2017, e ne e imenne habeli ho 64.4%. Ho lebelletsoe hore palo ena e tla fihla ho 84.20% ka 2019. Ho latela k'hamphani ea lehae ea EPC: “Seteishene se seng le se seng se secha sa motlakase sa 7GW selemo se seng le se seng se sebelisa 1500V. Mohlala, seteishene sa pele sa motlakase se seholo sa photovoltaic se Wyoming, se sa tsoa hokeloa marang-rang, se sebelisa tharollo ea motlakase ea inverter ea 1500V.
Ho latela likhakanyo, ha ho bapisoa le sistimi ea 1000V, phokotso ea litšenyehelo le keketseho ea ts'ebetso ea 1500V li bonahala haholo ho:
1) Palo ea likarolo tse hokahantsoeng letotong e eketsehile ho tloha ho li-block / khoele tse 24 ho isa ho li-blocks / likhoele tse 34, ho fokotsa palo ea likhoele. Ka mokhoa o ts'oanang, ts'ebeliso ea likhoele tsa photovoltaic e fokotsehile ka 48%, mme theko ea lisebelisoa tse joalo ka mabokose a combiner le eona e fokotsoe ka hoo e ka bang 1/3, mme theko e fokotsehile ka yuan / Wp e ka bang 0.05;
2) Keketseho ea palo ea likarolo letotong e fokotsa litšenyehelo tsa sisteme ea tšehetso, motheo oa qubu, kaho le ho kenya ka yuan / Wp e ka bang 0.05;
3) Voltage e hokahantsoeng le gridi ea AC ea sistimi ea 1500V e eketsehile ho tloha ho 540V ho isa ho 800V, lintlha tse hokahantsoeng ka marang-rang lia fokotseha, mme tahlehelo ea sistimi ea lehlakoreng la AC le DC e ka fokotsoa ka 1 ~ 2%.
4) Ho latela maemo a holileng tsebong a mmaraka oa mose ho maoatle, matla a felletseng a sehlopha se le seng a tlase a ka ralisoa ho ba 6.25MW lits'ebetsong tsa 1500V, esita le ho fihla ho 12.5MW libakeng tse ling. Ka ho eketsa bokhoni ba karoloana e le 'ngoe, litheko tsa lisebelisoa tsa AC joalo ka li-transformer li ka fokotsoa.
Ka hona, ha e bapisoa le sistimi ea setso ea 1000V, sistimi ea 1500V e ka fokotsa litšenyehelo ka 0.05 ~ 0.1 yuan / Wp, 'me matla a nnete a motlakase a ka nyoloha ka 1 ~ 2%.
Ho ikatisa ka "menyetla" ea "1500Vdc" ea 'maraka oa lapeng
Ha e bapisoa le mmaraka oa machabeng, lilemong tsa pele tsa indasteri ea Photovoltaic ea China, ka lebaka la phepelo e sa butsoang ea indasteri ea mahlale, sistimi ea 1500V e qalile kamora nako mme nts'etsopele ea eona e ne e lieha. Ke likhamphani tse 'maloa tse etelletseng pele joalo ka Sunshine Power tse phethileng R & D le setifikeiti. Empa ka ho phahama ha sistimi ea 1500V lefatšeng ka bophara, 'maraka oa lapeng o e sebelisitse, mme o fihletse litholoana tse ntle nts'etsopele le boqapi ba litsamaiso le lits'ebetso tsa 1500V:
- Ka Phupu 2015, inverter ea mantlha ea 1500V e ntlafalitsoeng le ho etsoa ke Sunshine Power ho la China e phethile ka katleho teko ea khokahano ea gridi mme ea bula selelekela sa theknoloji ea 1500V 'marakeng oa lapeng.
- Ka Pherekhong 2016, projeke ea pele ea lapeng ea 1500V photovoltaic projeke ea pontšo e ile ea hokeloa ho gridi bakeng sa tlhahiso ea motlakase.
- Ka Phuptjane 2016, morerong oa pele oa moetapele oa Datong, li-inverters tse bohareng tsa 1500V li ile tsa sebelisoa ka libetche.
- Ka Phato 2016, Sunshine Power e ile ea etella pele ho tsebiseng li-inverter tsa pele tsa lefats'e tsa 1500V, e leng ho matlafatsang tlholisano ea machabeng ea li-inverters tsa malapeng.
Hona selemong seo, projeke ea pele ea China ea li-photovoltaic ea China e ne e hokahantsoe le gridi bakeng sa tlhahiso ea motlakase ho Golmud, Qinghai, ho tšoaea hore sistimi ea lapeng ea 1500Vdc photovoltaic e se e qalile ho kena tšimong ea ts'ebeliso e sebetsang. Kakaretso e kentsoeng seteisheneng sa motlakase ke 1500MW. Sunshine Power e fana ka tharollo e felletseng bakeng sa projeke ena, e fokotsa litšenyehelo tsa ho tsetela ka cable ka 30%, litjeo tsa 20 yuan / Wp, hape e fokotsa haholo tahlehelo ea mola oa AC le DC le tahlehelo ea moea o fokotsang motlakase o tlase.
1500V e fetohile ntho e ka sehloohong marakeng oa lefatše
Sisteme ea 1500V, e nang le phokotso ea litšenyehelo le ts'ebetso, e fetohile khetho ea pele bakeng sa liteishene tse kholo tsa motlakase. Mabapi le nts'etsopele ea nako e tlang ea litsamaiso tsa 1500V, IHS e hakanya hore karolo ea li-inverters tsa 1500V e tla tsoelapele ho nyolohela ho 74% ho 2019 mme e tla nyolohela ho 84% ka 2020, e be eona e ka sehloohong indastering.
Ho latela pono ea matla a kentsoeng a 1500V, e ne e le 2GW feela ka 2016 mme e feta 30GW ka 2018. E fihlelletse kholo ka makhetlo a fetang a 14 lilemong tse peli feela, mme ho lebelletsoe hore e boloke mokhoa o tsitsitseng oa kholo ea lebelo le phahameng. Ho lebelletsoe hore thomello ea pokello ho 2019 le 2020 e tla ba Chelete e tla feta 100GW. Bakeng sa likhoebo tsa China, Sunshine Power e kentse tse fetang 5GW tsa li-inverters tsa 1500V lefats'eng ka bophara mme e na le merero ea ho tsebisa likhoele tse tsoetseng pele tsa 1500V le li-inverters tse bohareng ho 2019 ho fihlela litlhoko tse ntseng li hola ka potlako tse kentsoeng.
Ho eketsa motlakase oa DC ho isa ho 1500V ke phetoho ea bohlokoa ho fokotsa litšenyehelo le ho eketsa ts'ebetso, 'me joale e se e le tharollo ea mantlha bakeng sa nts'etsopele ea machabeng ea photovoltaic. Ka nako ea ho fokotseha ha lithuso le bonngoe China, sistimi ea 1500V e tla sebelisoa le ho feta China, ho potlakisa ho fihla ha mehla ea parity ea China
Tlhahlobo ea moruo ea sistimi ea photovoltaic ea 1500V
Ho tloha 2018, ho sa tsotelehe kantle ho naha kapa malapeng, karolo ea ts'ebeliso ea sistimi ea 1500V e ntse e hola le ho feta. Ho ea ka lipalo-palo tsa IHS, bophahamo ba kopo ea 1500V bakeng sa liteishene tse kholo tsa motlakase kantle ho naha linaheng tse ling bo feta 50% ka 2018; ho latela lipalo-palo tsa pele, hara sehlopha sa boraro sa limathi tse ka pele ho 2018, karolo ea likopo tsa 1500V e ne e le lipakeng tsa 15% le 20%.
Na sistimi ea 1500V e ka fokotsa litšenyehelo tsa motlakase bakeng sa projeke? Pampiri ena e etsa tlhahlobo ea papiso ea moruo oa mekhahlelo e 'meli ea motlakase ka lipalo tsa thuto le lintlha tsa nnete tsa linyeoe.
I. Morero oa moralo oa mantlha
Bakeng sa ho sekaseka boemo ba litšenyehelo ba ts'ebeliso ea 1500Vdc tsamaisong ea photovoltaic, ho sebelisoa moralo o tloaelehileng oa ho bapisa litšenyehelo tsa projeke le litjeo tsa sistimi ea 1000V.
1. motheo oa lipalo
1) Seteishene sa matla a fatše, sebaka se bataletseng, matla a kentsoeng ha a felle feela ka sebaka sa mobu;
2) Mocheso o feteletseng le mocheso o tlase haholo sebakeng sa projeke li tla nkuoa ho latela 40 ℃ le -20 ℃.
3) Meeli ea bohlokoa ea likarolo tse khethiloeng le li-inverters li bonts'itsoe tafoleng e ka tlase.
2. Morero oa moralo oa mantlha
1) moralo oa moralo oa li-series tsa 1000V
22 310W li-module tsa photovoltaic tse mahlakore a mabeli li theha lekala la 6.82kW, makala a 2 a etsa sekoere se lekanang, makala a 240 e le kakaretso ea li-square tsa 120, mme a kena ho li-inverters tse 20 75kW (makhetlo a 1.09 a abuoang hofeta ka lehlakoreng la DC, phaello ka morao) 15%, ke makhetlo a 1.25 ho fanoa ka bongata ho feta) ho theha yuniti ea tlhahiso ea motlakase ea 1.6368MW.
Karolo ena e kentsoe ka holimo holima 4 * 11, 'me masakaneng a mabeli le a mabeli a ka morao le a morao.
2) moralo oa moralo oa li-series tsa 1500V
34 310W li-module tsa photovoltaic tse habeli li theha lekala la 10.54kW, makala a 2 a theha matrix a lisekoere, makala a 324 a na le kakaretso ea li-arrays tse 162, 'me li-inverters tse 18 175kW li kentsoe (makhetlo a 1.08 ho ajoa ho feta lehlakoreng la DC, phaello ho morao Ha u nahana ka 15%, ke makhetlo a 1.25 ho feta tlhahiso) ho theha yuniti ea tlhahiso ea motlakase ea 3.415MW.
Karolo ena e kentsoe holimo ka mokhoa o tšekaletseng ho latela 4 * 17, 'me ka masakaneng a mabeli le a kamorao a morao.
Taba ea bobeli, litlamorao tsa 1500V ho tsetelo ea pele
Ho latela moralo oa moralo o boletsoeng kaholimo, tlhahlobo e bapisoang ea bongata le theko ea boenjineri le sistimi ea 1500V le sistimi ea setso ea 1000V e tjena.
Tafole ea 3: Sebopeho sa matsete a sistimi ea 1000V
Tafole ea 4: Sebopeho sa matsete a sistimi ea 1500V
Ka tlhahlobo ea ho bapisa, ho fumanoa hore ha e bapisoa le sistimi ea setso ea 1000V, sistimi ea 1500V e boloka chelete e ka bang 0.1 yuan / W ea litšenyehelo tsa sistimi.
Ea boraro, litlamorao tsa 1500V phepelong ea motlakase
Motheo oa lipalo:
Ho sebelisa likarolo tse ts'oanang, ho ke ke ha ba le phapang ea tlhahiso ea motlakase ka lebaka la liphapang tsa likaroloana; ho nka sebaka se bataletseng, ho ke ke ha ba le moriti o koaloang ka lebaka la liphetoho tsa mobu;
Phapang ea tlhahiso ea motlakase e ipapisitse le lintlha tse peli: tahlehelo e sa nepahalang lipakeng tsa likarolo le likhoele, tahlehelo ea line ea DC, le tahlehelo ea line ea AC.
1. tahlehelo e fapaneng pakeng tsa likaroloana le likhoele
Palo ea likarolo tsa letoto la lekala le le leng e eketsehile ho tloha ho 22 ho ea ho 34. Ka lebaka la kheloho ea motlakase ea ± 3W lipakeng tsa likarolo tse fapaneng, tahlehelo ea motlakase lipakeng tsa likarolo tsa sistimi ea 1500V e tla eketseha, empa e ke ke ea baloa ka bongata.
Palo ea litsela tsa phihlello ea inverter e le 'ngoe e eketsehile ho tloha ho 12 ho isa ho 18, empa palo ea litsela tsa ho latedisa MPPT ea inverter e eketsehile ho tloha ho 6 ho isa 9 ho netefatsa hore makala a 2 a tsamaellana le 1 MPPT. Tahlehelo ea MPPT ha e eketsehe.
2. Tahlehelo ea mola oa DC le AC
Mokhoa oa ho bala oa tahlehelo ea mola
Q tahlehelo = I2R = (P / U) 2R = ρ (P / U) 2 (L / S)
1) Palo ea tahlehelo ea mola oa DC
Tafole: Sekhahla sa tahlehelo ea mola oa DC oa lekala le le leng
Ka lipalo tse boletsoeng kaholimo, ho fumanoe hore tahlehelo ea mola oa DC ea sistimi ea 1500V ke makhetlo a 0.765 ho feta a sistimi ea 1000V, e lekanang le ho fokotsa tahlehelo ea mola oa DC ka 23.5%.
2) Palo ea tahlehelo ea mohala oa AC
Tafole: AC mola oa tahlehelo karo-karolelano ea inverter le 'ngoe
Ho latela lipalo tse boletsoeng kaholimo, ho fumanoe hore tahlehelo ea mola oa DC ea sistimi ea 1500V ke makhetlo a 0.263 ho feta ea sistimi ea 1000V, e lekanang le ho fokotsa tahlehelo ea line ea AC ka 73.7%.
3) Lintlha tsa 'nete tsa linyeoe
Kaha tahlehelo e sa lumellaneng lipakeng tsa likarolo e ke ke ea baloa ka bongata, 'me tikoloho ea' nete e ikarabella haholoanyane, nyeoe ea 'nete e tla sebelisoa bakeng sa tlhaloso e ngoe.
Sengoliloeng sena se sebelisa lintlha tsa nnete tsa phepelo ea motlakase tsa sehlopha sa boraro sa projeke ea semathi se ka pele. Nako ea pokello ea lintlha e qala ka Mots'eanong ho isa Phuptjane 2019, kakaretso ea likhoeli tse 2 tsa data.
Tafole: Papiso ea phepelo ea motlakase lipakeng tsa litsamaiso tsa 1000V le 1500V
Ho tloha tafoleng e kaholimo, ho ka fumanoa hore sebakeng se le seng sa projeke, ho sebelisoa likarolo tse tšoanang, lihlahisoa tsa baetsi ba inverter, le mokhoa o ts'oanang oa ho kenya bracket, ka Mots'eanong ho isa Phuptjane 2019, lihora tsa tlhahiso ea motlakase tsa sistimi ea 1500V e ne e le 1.55% e phahameng ho feta sistimi ea 1000V.
Ho ka bonoa hore leha keketseho ea palo ea lisebelisoa tse le 'ngoe ea likhoele e tla eketsa tahlehelo e sa nepahalang lipakeng tsa likarolo hobane e ka fokotsa tahlehelo ea mola oa DC ka 23.5% le tahlehelo ea line ea AC ka 73.7%, sistimi ea 1500V e ka eketsa phepelo ea motlakase ea projeke.
Ea bone, tlhahlobo e felletseng
Ka tlhahlobo e kaholimo, re ka fumana hore ha e bapisoa le sistimi ea setso ea 1000V, sistimi ea 1500V,
1) E ka boloka chelete e ka bang 0.1 yuan / W system system;
2) Leha keketseho ea palo ea lisebelisoa tse le 'ngoe ea likhoele e tla eketsa tahlehelo e sa nepahalang lipakeng tsa likarolo, empa hobane e ka fokotsa tahlehelo ea mola oa DC ka 23.5% le tahlehelo ea line ea AC ka 73.7%, sistimi ea 1500V e tla eketsa phepelo ea motlakase ea projeke.
Ka hona, ts'ebeliso ea 1500Vdc tsamaisong ea photovoltaic litjeo tsa motlakase li ka fokotsoa ho isa bohōleng bo itseng.
Ho ea ka Dong Xiaoqing, mopresidente oa Setsi sa Hebei Energy Engineering, ho feta 50% ea merero ea moralo oa projeke ea photovoltaic e phethetsoeng ke setheo e khethile 1500V; ho lebelletsoe hore karolo ea naha ea 1500V ea liteishene tsa matla a fatše ka 2019 e tla fihla ho 35%; e tla eketsoa ka ho eketsehileng ka 2020.
IHS Markit, lefapha le tsebahalang la boeletsi la machabeng, le fane ka tebello e nang le tšepo. Tlalehong ea bona ea tlhahlobo ea mmaraka ea photovoltaic ea 1500V ea lefatše ka bophara, ba supile hore sekala sa lefats'e sa matla a motlakase sa 1500V se tla feta 100GW lilemong tse peli tse tlang.
Setšoantšo: Ponelopele ea karolo ea 1500V liteisheneng tsa motlakase oa lefats'e
Ntle ho pelaelo, ha ts'ebetso ea indasteri ea lifoto ea photovoltaic e potlakisa, le ho phehella litšenyehelo tsa motlakase, 1500V, joalo ka tharollo ea tekheniki e ka fokotsang theko ea motlakase, e tla sebelisoa haholo.
