Ko iyo 1500V system inogona kuderedza zvinobudirira mutengo pa kilowatt-awa ye photovoltaic system?

Pasinei nekunze kana yepamba, chikamu chekushandisa che1500V system chiri kuwedzera.Zvinoenderana nenhamba dzeIHS, muna 2018, kushandiswa kwe1500V mune zviteshi zvemagetsi zvakakura zvekunze zvakapfuura 50%;maererano nenhamba dzekutanga, pakati peboka rechitatu revanomhanya-mberi muna 2018, chikamu chekushandisa che1500V chaive pakati pe15% ne20%.Iyo 1500V system inogona kunyatso kudzikisa mutengo pa kilowatt-awa yeprojekiti?Iri bepa rinoita ongororo yekuenzanisa yehupfumi hwemazinga maviri evoltage kuburikidza neanoretical kuverenga uye chaiyo kesi data.

1. Basic design plan

Kuti uongorore mwero wemutengo weiyo 1500V system, yakajairwa dhizaini chirongwa chinogamuchirwa, uye mutengo weiyo yechinyakare 1000V system inofananidzwa zvichienderana nehuwandu hweinjiniya.

Calculation premise

(1) Chiteshi chemagetsi chepasi, nzvimbo yakati sandara, nzvimbo yakasimwa haina kudziviswa nenzvimbo yevhu;

(2) Kupisa kwakanyanya uye kuderera kwakanyanya kwenzvimbo yeprojekiti kuchatariswa zvinoenderana ne40 ℃ uye -20 ℃.

(3) Thezvakakosha parameters yezvikamu zvakasarudzwa uye inverterszviri sezvinotevera.

Investment chimiro che1500V system

Kuburikidza nekuongorora kwekuenzanisa, zvinoonekwa kuti zvichienzaniswa neyechinyakare 1000V system, iyo 1500V sisitimu inochengetedza inenge 0.1 yuan/W yemutengo wesystem.

3. Mhedzisiro ye1500V pakugadzira magetsi

Calculation premise:

Uchishandisa iyo module imwechete, hapazove nemusiyano mukugadzira magetsi nekuda kwekusiyana kwemodule;nekutora nzvimbo yakati sandara, hapazovi nemumvuri wekuvhara nekuda kwekuchinja kwenzvimbo.
Musiyano mukugadzirwa kwemagetsi unonyanya kuenderana nezvinhu zviviri:kusawirirana kurasikirwa pakati pemodule uye tambo, iyo DC mutsara kurasikirwa uye AC mutsara kurasikirwa.

1. Kusawirirana kurasikirwa pakati pezvikamu uye tambo Nhamba yezvikamu zvakatevedzana mubazi rimwe chete yakawedzerwa kubva ku22 kusvika ku34. Pamusana pe ± 3W simba rakatsauka pakati pezvikamu zvakasiyana-siyana, kurasikirwa kwesimba pakati pe1500V system components kuchawedzera, asi Hapana kuverengwa kwehuwandu. inogona kuitwa.Nhamba yekuwana nzira dzeimwe inverter yakawedzerwa kubva ku12 kusvika ku18, asi nhamba yeMPPT yekutevera nzira dze inverter yakawedzerwa kubva ku6 kusvika ku9 kuti ione kuti matavi maviri anoenderana ne1 MPPT.Naizvozvo, pakati petambo Iyo MPPT kurasikirwa hakuzowedzere.

2. Calculation formula yeDC neAC line kurasikirwa: Q kurasikirwa=I2R=(P/U)2R= ρ(P/U)2(L/S)1)

DC mutsara kurasikirwa calculation tafura: DC mutsetse kurasikirwa reshiyo yebazi rimwe chete

Kuburikidza neaya epamusoro maverengero edzidziso, inowanikwa kuti iyo DC mutsara kurasikirwa kweiyo 1500V system ndeye 0.765 nguva yeiyo 1000V system, iyo yakaenzana ne23.5% kuderedzwa mukurasikirwa kwemutsara weDC.

AC mutsetse kurasikirwa kuverenga tafura: AC mutsetse kurasikirwa ratio yeimwe inverter

Kuburikidza nepamusoro pezvinyorwa zvekuverenga, zvinoonekwa kuti iyo DC mutsara kurasikirwa kwe1500V system ndeye 0.263 nguva ye1000V system, iyo yakaenzana nekuderedzwa kwe73.7% ye AC mutsara kurasikirwa.

3. Deta chaiyoiyo yenyaya Sezvo kurasikirwa kwekusawirirana pakati pezvikamu zvisingagoni kuverengwa kuwanda, uye mamiriro ezvinhu chaiwo ane mutoro, nyaya chaiyo inoshandiswa kune imwezve tsanangudzo.Ichi chinyorwa chinoshandisa iyo chaiyo yekugadzira magetsi data yechitatu batch yepamberi-mumhanyi purojekiti, uye nguva yekuunganidza data kubva muna Chivabvu kusvika Chikumi 2019, inokwana mwedzi miviri yedata.

Kuenzanisa kwekugadzira simba pakati pe1000V uye 1500V masisitimu

Kubva pane tafura iri pamusoro, zvinogona kuwanikwa kuti panzvimbo imwechete yeprojekiti, uchishandisa zvinhu zvakafanana, zvigadzirwa zvevagadziri vemagetsi, uye nzira imwechete yekuisa bracket, panguva kubva muna Chivabvu kusvika June 2019, maawa ekugadzira magetsi eiyo 1500V system. ari 1.55% yakakwirira kupfuura iyo ye1000V system.Zvinogona kuonekwa kuti kunyange zvazvo kuwedzera kwenhamba yezvikamu zvetambo imwe chete kuchawedzera kukanganisa kusingafananidzi pakati pezvikamu, zvinogona kuderedza kurasikirwa kwemutsara weDC inenge 23.5% uye AC mutsara kurasikirwa ne73.7%.Iyo 1500V system inogona kuwedzera simba reprojekiti.

4. Kuongorora kwakadzama

Kuburikidza neongororo yapfuura, zvinogona kuwanikwa kuti iyo 1500V system inofananidzwa neyechinyakare 1000V system:

1) Inogonachengetedza inenge 0.1 yuan/W yemutengo wesystem;

2) Kunyange zvazvo kuwedzera kwenhamba yezvikamu zvetambo imwe chete kuchawedzera kukanganisa kukanganisa pakati pezvikamu, zvinogona kuderedza inenge 23.5% yeDC yekurasikirwa kwemutsara uye inenge 73.7% ye AC mutsara kurasikirwa, uyeiyo 1500V system ichawedzera kugadzirwa kwemagetsi kweprojekiti.Nokudaro, mari yemagetsi inogona kuderedzwa kusvika pamwero wakati.Maererano naDong Xiaoqing, Dean weHebei Energy Engineering Institute, inopfuura 50% yepasi photovoltaic project design zvirongwa zvakapedzwa nesangano gore rino zvakasarudza 1500V;zvinotarisirwa kuti chikamu che1500V muzviteshi zvemagetsi zvepasi munyika yose muna 2019 chichasvika pamusoro pe35%;zvichawedzera kuwedzera muna 2020. Sangano remazano repasi rose rine mukurumbira pasi rose IHS Markit rakapa fungidziro ine tariro.Mune yavo 1500V yepasi rose photovoltaic yekuongorora musika mushumo, vakaratidza kuti pasi rose 1500V photovoltaic power station scale ichapfuura 100GW mumakore maviri anotevera.

Kufanotaura kwechikamu che1500V mupasi rose pasi magetsi zviteshi

Pasina mubvunzo, sezvo indasitiri yepasi rose yephotovoltaic inokurumidza nzira yekubatsira, uye kutsvaga kwakanyanya kwemutengo wemagetsi, 1500V semhinduro yehunyanzvi inogona kuderedza mutengo wemagetsi ichave yakanyanya kushandiswa.

1500V simba rekuchengetedza richave rakakura mune ramangwana

Muna Chikunguru 2014, inverter yeSMA 1500V system yakaiswa mu3.2MW photovoltaic chirongwa muKassel Industrial Park, Germany.

MunaGunyana 2014, Trina Solar's double-glass photovoltaic modules yakagamuchira yekutanga 1500V PID chitupa chakapihwa neTUV Rheinland kuChina.

Muna Mbudzi 2014, Longma Technology yakapedza kuvandudzwa kweiyo DC1500V system.

Muna Kubvumbi 2015, iyo TUV Rheinland Boka yakabata 2015 "Photovoltaic Modules/Zvikamu 1500V Certification" seminar.

Muna June 2015, Projoy yakatanga PEDS series ye photovoltaic DC switches ye 1500V photovoltaic systems.

Muna Chikunguru 2015, Yingli Kambani yakazivisa kugadzirwa kwealuminum furemu musangano ine yakanyanya system voltage ye1500 volts, kunyanya kune zviteshi zvemagetsi epasi.

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Vagadziri muzvikamu zvese zveiyo photovoltaic indasitiri vari kushingaira kutanga 1500V system zvigadzirwa.Sei "1500V" ichitaurwa zvakanyanya uye zvakanyanya?Iyo nguva ye1500V photovoltaic system iri kuuya zvechokwadi here?

Kwenguva yakareba, mari yepamusoro yekugadzira simba yave iri chimwe chezvikonzero zvikuru zvinodzivisa kukura kweiyo photovoltaic industry.Nzira yekudzikisa mari pa kilowatt-awa ye photovoltaic systems uye kuvandudza simba rekugadzira simbayava nyaya huru ye photovoltaic industry.1500V uye kunyange yakakwirira masisitimu zvinoreva kuderera kwehurongwa mutengo.Zvikamu zvakaita se photovoltaic modules uye DC switch, kunyanya inverters, inoita basa rinokosha.

Zvakanakira 1500V photovoltaic inverter

Nekuwedzera magetsi ekuisa, kureba kwetambo yega yega kunogona kukwidziridzwa ne50%, izvo zvinogona kuderedza huwandu hweDC tambo dzakabatana kune inverter uye huwandu hwemabhokisi bhokisi inverters.Panguva imwecheteyo, mabhokisi ekubatanidza, inverters, transformers, etc. Simba remagetsi emagetsi emagetsi anowedzera, huwandu hunoderedzwa, uye basa rekutakura nekugadzirisa rinoderedzwawo, izvo zvinobatsira pakuderedza mari ye photovoltaic. systems.

Nekuwedzera iyo yakabuda divi voltage, iyo simba density ye inverter inogona kuwedzerwa.Pasi peyero yazvino, simba rinogona kupetwa kaviri.Iyo yepamusoro yekupinza uye yekubuda voltage level inogona kuderedza kurasikirwa kweiyo system DC tambo uye kurasikirwa kweshanduko, nekudaro kuwedzera simba rekugadzira magetsi.

Kusarudzwa kwe1500V photovoltaic inverter

Kubva pakuona kwemagetsi, kusangana ne1500V kuri nyore pane kupaza tekinoroji ye1500V yezvigadzirwa zvemodule.Mushure mezvose, zvigadzirwa zvose zvakataurwa pamusoro zvinogadzirwa kubva kune indasitiri yakakura kutsigira photovoltaics.Tichifunga nezve 1500VDC subway, traction mota inverters, magetsi emagetsi haazove dambudziko rekusarudza, kusanganisira Mitsubishi, Infineon, nezvimwe zvine magetsi emagetsi pamusoro pe2000V, ma capacitor anogona kubatanidzwa munhevedzano kuwedzera voltage level, uye ikozvino neProjoy nezvimwe. Nekuchinja kwe1500V kwakatangwa, vagadziri vezvikamu zvakasiyana-siyana, JA Solar, Canadian Solar, uye Trina vose vakaparura 1500V zvikamu.Kusarudzwa kwese inverter system hakuzove dambudziko.

Kubva pakuona kwebhatiri yebhatiri, tambo ye 22 panels inowanzoshandiswa ku1000V, uye tambo yemapuranga ye 1500V system inofanira kunge inenge 33. Maererano nekushisa kwekushisa kwezvikamu, simba guru remagetsi richava rakapoteredza 26. -37V.Iyo MPP voltage yemhando yezvikamu zvetambo ichave yakatenderedza 850-1220V, uye yakaderera voltage inoshandurwa kudivi reAC i810/1.414=601V.Tichifunga nezve 10% kushanduka uye mangwanani-ngwanani nehusiku, pekugara uye zvimwe zvinhu, inozowanzo kutsanangurwa panosvika 450-550.Kana ikozvino yakaderera, ikozvino ichava yakakura zvikuru uye kupisa kuchave kwakakura.Kana iri centralized inverter, voltage inobuda ingangoita 300V uye ikozvino inenge 1000A pa1000VDC, uye inobuda voltage i540V pa1500VDC, uye inobuda ikozvino inenge 1100A.Musiyano hausi mukuru, saka nhanho yezvino yekusarudzwa kwechigadzirwa haizove yakanyanyosiyana, asi iyo voltage level inowedzera.Izvi zvinotevera zvichakurukura zvinobuda divi voltage se540V.

Kushandiswa kwe1500V solar inverter mu photovoltaic power station

Kune zviteshi zvemasimba makuru epasi, zviteshi zvemagetsi zvepasi zvakachena grid-yakabatana inverters, uye mainverters anoshandiswa ari pakati, akagoverwa uye akakwira-simba tambo inverters.Kana iyo 1500V system inoshandiswa, iyo DC mutsara kurasikirwa ichave Kuderera, kushanda kweiyo inverter kuchawedzerawo.Kubudirira kwehurongwa hwese kunotarisirwa kuwedzera ne1.5% -2%, nekuti pachave nedanho-up transformer padivi rekubuda kweiyo inverter kuti ikwidziridze simba repakati kuendesa simba kune grid pasina kudiwa kuna Major. shanduko kuhurongwa hwehurongwa.

Tora chirongwa che1MW semuenzaniso (tambo yega yega i250W modules)