Ngaba inkqubo ye-1500V inganciphisa ngempumelelo iindleko nge-kilowatt-yure yenkqubo ye-photovoltaic?

Kungakhathaliseki ukuba yeyiphi na yangaphandle okanye yasekhaya, umlinganiselo wesicelo se-1500V inkqubo iyanda.Ngokwezibalo ze-IHS, kwi-2018, ukusetyenziswa kwe-1500V kwizikhululo zamandla zangaphandle zangaphandle zangaphandle zidlula i-50%;ngokwezibalo zangaphambili, phakathi kweqela lesithathu labahamba phambili kwi-2018, umlinganiselo wesicelo se-1500V wawuphakathi kwe-15% kunye ne-20%.Ngaba inkqubo ye-1500V inganciphisa ngempumelelo iindleko zekilowatt-yure yeprojekthi?Eli phepha lenza uhlalutyo oluthelekisayo lwezoqoqosho lwamanqanaba amabini ombane ngokusebenzisa izibalo zethiyori kunye neenkcukacha zangempela.

1. Isicwangciso soyilo olusisiseko

Ukuze uhlalutye umgangatho weendleko zenkqubo ye-1500V, isicwangciso soyilo esiqhelekileyo samkelwa, kwaye iindleko zenkqubo ye-1000V yendabuko ithelekiswa nobuninzi bobunjineli.

Indawo yokubala

(1) Isikhululo sombane esiphantsi, umhlaba othe tyaba, umthamo ofakelweyo awuthintelwanga ngummandla womhlaba;

(2) Ubushushu obugqithisileyo obuphezulu kunye nobushushu obuphantsi kakhulu besiza seprojekthi buya kuqwalaselwa ngokwe 40℃ kunye ne -20℃.

(3) Iiiparameters eziphambili zamacandelo akhethiweyo kunye nee-inverterszezi zilandelayo.

Ubume botyalo-mali lwe-1500V inkqubo

Ngohlalutyo oluthelekisayo, kufunyenwe ukuba xa kuthelekiswa nenkqubo yemveli ye-1000V, inkqubo ye-1500V igcina malunga ne-0.1 yuan / W yeendleko zenkqubo.

3. Iimpembelelo ze-1500V ekwenziweni kombane

Indawo yokubala:

Ukusebenzisa imodyuli efanayo, akuyi kubakho mahluko ekwenziweni kwamandla ngenxa yomahluko wemodyuli;Ukuthatha indawo ethe tyaba, akusayi kubakho kuvaleka kwesithunzi ngenxa yotshintsho lwepografi.
Umahluko kwimveliso yamandla usekwe ikakhulu kwizinto ezimbini:ilahleko engafaniyo phakathi kwemodyuli kunye nomtya, ilahleko yomgca weDC kunye nokulahleka komgca we-AC.

1. Ilahleko engafaniyo phakathi kwamacandelo kunye neentambo Inani lamacandelo amacandelo kwisebe elinye liye landa ukusuka kwi-22 ukuya kwi-34. Ngenxa yokuphambuka kwamandla phakathi kwe-± 3W phakathi kwamacandelo ahlukeneyo, ukulahleka kwamandla phakathi kwe-1500V yamacandelo enkqubo kuya kwanda, kodwa Akukho zibalo zobungakanani. inokwenziwa.Inani leendlela zokufikelela kwi-inverter enye liye lanyuswa ukusuka kwi-12 ukuya kwi-18, kodwa inani leendlela zokulandelela i-MPPT ze-inverter liye lanyuswa ukusuka kwi-6 ukuya kwi-9 ukuqinisekisa ukuba amasebe e-2 ahambelana ne-1 MPPT.Ke ngoko, phakathi kwemitya Ilahleko yeMPPT ayizukunyuka.

2. Ifomula yokubala ye-DC kunye nelahleko yomgca we-AC: Q loss=I2R=(P/U)2R= ρ(P/U)2(L/S)1)

Itheyibhile yokubala ilahleko yomgca we-DC: Umlinganiselo welahleko we-DC wesebe elinye

Ngobalo lwethiyori engentla, kufunyenwe ukuba ilahleko yomgca we-DC wenkqubo ye-1500V yi-0.765 amaxesha enkqubo ye-1000V, elingana nokunciphisa i-23.5% kwilahleko yomgca we-DC.

Itheyibhile yokubala ilahleko yomgca we-AC: Umlinganiselo wokulahleka komgca we-AC we-inverter enye

Ngokusebenzisa izibalo zethiyori ezingentla, kufunyenwe ukuba ukulahleka komgca we-DC we-1500V inkqubo yi-0.263 amaxesha e-1000V inkqubo, elingana nokunciphisa i-73.7% yelahleko yomgca we-AC.

3. Idatha yemeko eyiyo Ekubeni ilahleko engahambelaniyo phakathi kwamacandelo ayinakubalwa ngokobungakanani, kwaye eyona ndawo ingqongileyo inoxanduva ngakumbi, eyona meko isetyenziselwa ingcaciso engaphezulu.Eli nqaku lisebenzisa idatha yangempela yokuvelisa amandla kwibhetshi yesithathu yeprojekthi ehamba phambili, kwaye ixesha lokuqokelela idatha livela ngoMeyi ukuya kuJuni 2019, inani leenyanga ze-2 zedatha.

Ukuthelekiswa kokuveliswa kwamandla phakathi kwe-1000V kunye ne-1500V iinkqubo

Ukusuka kwitheyibhile engentla, kunokufunyanwa ukuba kwindawo enye yeprojekthi, kusetyenziswa amacandelo afanayo, iimveliso zabavelisi be-inverter, kunye nendlela yokufaka isibiyeli, ngexesha ukusuka ngoMeyi ukuya kuJuni ka-2019, iiyure zokuvelisa amandla enkqubo ye-1500V. zingaphezulu kwe-1.55% kunenkqubo ye-1000V.Ingabonwa ukuba nangona ukwanda kwenani lamacandelo omtya omnye kuya kwandisa ilahleko engafanelekanga phakathi kwamacandelo, kunokunciphisa ukulahleka komgca we-DC malunga ne-23.5% kunye nokulahleka komgca we-AC malunga ne-73.7%.Inkqubo ye-1500V inokunyusa ukuveliswa kwamandla eprojekthi.

4. Uhlalutyo olupheleleyo

Ngohlalutyo lwangaphambili, kunokufunyanwa ukuba inkqubo ye-1500V ithelekiswa nenkqubo yemveli ye-1000V:

1) Iyakwazigcina malunga ne-0.1 yuan/W yeendleko zenkqubo;

2) Nangona ukwanda kwenani lamacandelo omtya omnye kuya kwandisa ilahleko engafanelekanga phakathi kwamacandelo, inokunciphisa malunga ne-23.5% yelahleko yomgca we-DC kunye ne-73.7% yokulahleka komgca we-AC, kwayeinkqubo ye-1500V iya kwandisa ukuveliswa kwamandla eprojekthi.Ngoko ke, iindleko zombane zinokuncitshiswa ukusa kumlinganiselo othile.Ngokutsho kukaDong Xiaoqing, uDean weHebei Energy Engineering Institute, ngaphezu kwe-50% yezicwangciso zeprojekthi yeprojekthi ye-photovoltaic yomhlaba egqitywe liziko kulo nyaka ukhethe i-1500V;kulindeleke ukuba isabelo se-1500V kwizikhululo zamandla eziphantsi komhlaba kuzwelonke ngo-2019 siya kufikelela malunga nama-35%;iya kwanda ngakumbi ngo-2020.Kwingxelo yabo yohlalutyo lwemarike ye-photovoltaic ye-1500V yehlabathi jikelele, bachaza ukuba i-global 1500V photovoltaic power station scale iya kudlula i-100GW kwiminyaka emibini ezayo.

Uqikelelo lomyinge we-1500V kwizikhululo zamandla eziphantsi komhlaba

Ngokungathandabuzekiyo, njengoko imboni ye-photovoltaic yehlabathi ikhawuleza inkqubo yenkxaso-mali, kunye nokuphishekela ngokugqithisileyo kweendleko zombane, i-1500V njengesisombululo sobugcisa esinokunciphisa iindleko zombane ziya kusetyenziswa ngakumbi.

I-1500V yokugcina amandla iya kuba yinto eqhelekileyo kwixesha elizayo

NgoJulayi 2014, i-inverter yenkqubo ye-SMA 1500V isetyenziswe kwiprojekthi ye-photovoltaic ye-3.2MW e-Kassel Industrial Park, eJamani.

NgoSeptemba 2014, iimodyuli ze-photovoltaic zeglasi ezimbini ze-Trina Solar zafumana isatifikethi sokuqala se-PID ye-1500V ekhutshwe yi-TUV Rheinland e-China.

NgoNovemba 2014, i-Longma Technology yagqiba ukuphuhliswa kwenkqubo ye-DC1500V.

Ngo-Aprili 2015, i-TUV Rheinland Group yabamba i-semina ye-2015 "Photovoltaic Modules / Parts 1500V Certification".

NgoJuni 2015, iProjoy yaqalisa uchungechunge lwe-PEDS lwe-photovoltaic DC switches ye-1500V photovoltaic systems.

NgoJulayi ka-2015, iNkampani ye-Yingli ibhengeze ukuphuhliswa kwendibano yesakhelo se-aluminium kunye ne-voltage ephezulu ye-voltage ye-1500 volts, ngokukodwa kwizikhululo zamandla aphantsi.

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Abavelisi kuwo onke amacandelo oshishino lwe-photovoltaic baqalisa ngokusebenzayo iimveliso zenkqubo ye-1500V.Kutheni i-"1500V" ikhankanywa ngokuphindaphindiweyo?Ngaba ixesha le-1500V photovoltaic systems liza ngokwenene?

Kwangexesha elide, iindleko eziphezulu zokuvelisa amandla zibe sesinye sezizathu eziphambili ezithintela uphuhliso lwemboni ye-photovoltaic.Indlela yokunciphisa iindleko ze-kilowatt-yure yeenkqubo ze-photovoltaic kunye nokuphucula ukusebenza kakuhle kokuveliswa kwamandlaibe ngumba ophambili weshishini le-photovoltaic.I-1500V kunye neenkqubo eziphezulu zithetha iindleko eziphantsi zenkqubo.Amacandelo afana neemodyuli ze-photovoltaic kunye nokutshintsha kwe-DC, ngokukodwa ii-inverters, zidlala indima ebalulekileyo.

Izinto ezilungileyo ze-1500V photovoltaic inverter

Ngokunyusa igalelo lombane, ubude bomtya ngamnye bunokunyuswa nge-50%, enokunciphisa inani leentambo ze-DC eziqhagamshelwe kwi-inverter kunye nenani le-inverters yebhokisi yokudibanisa.Ngelo xesha, iibhokisi zokudibanisa, i-inverters, i-transformers, njl. Ubuninzi bombane bezixhobo zombane bunyuswa, umthamo uyancitshiswa, kwaye umthwalo wokuthuthwa kunye nokugcinwa komsebenzi uyancitshiswa, ohambelana nokunciphisa iindleko ze-photovoltaic. iinkqubo.

Ngokunyusa i-voltage yecala lokuphuma, ukuxinana kwamandla e-inverter kunokunyuswa.Ngaphantsi komgangatho ofanayo wangoku, amandla anokuphinda aphindwe kabini.Igalelo eliphezulu kunye nenqanaba lombane eliphumayo linokunciphisa ilahleko yenkqubo ye-DC cable kunye nelahleko ye-transformer, ngaloo ndlela ukwandisa ukusebenza kokuveliswa kwamandla.

Ukukhethwa kwe-1500V ye-photovoltaic inverter

Ukusuka kwimbono yombane, ukudibana kwe-1500V kulula ngakumbi kunokuqhekeza iteknoloji ye-1500V yeemveliso zemodyuli.Emva koko, zonke iimveliso ezikhankanywe ngasentla ziphuhliswa kwishishini elivuthiweyo ukuxhasa i-photovoltaics.Ngokwembono ye-1500VDC ye-subway, i-inverters ye-traction yezithuthi, izixhobo zamandla aziyi kuba yingxaki yokukhetha, kuquka i-Mitsubishi, i-Infineon, njl. Ngokuphehlelelwa kotshintsho lwe-1500V, abavelisi bamacandelo ahlukeneyo, iJA Solar, iCanadian Solar, kunye neTrina bonke baye basungula amacandelo e-1500V.Ukukhethwa kwenkqubo yokuguqula yonke into akuyi kuba yingxaki.

Ukususela kumbono wepaneli yebhetri, intambo yeepaneli ze-22 isetyenziswa ngokuqhelekileyo kwi-1000V, kwaye umtya weepaneli ze-1500V inkqubo kufuneka ibe malunga ne-33. Ngokweempawu zeqondo lokushisa lamacandelo, ubuninzi bomthamo wamandla ombane uya kuba malunga ne-26. -37V.Uluhlu lwe-MPP lwe-voltage ye-string components luya kuba malunga ne-850-1220V, kwaye i-voltage ephantsi kakhulu eguqulelwe kwicala le-AC yi-810 / 1.414 = 601V.Ukuthathela ingqalelo ukuguquguquka kwe-10% kunye nokusa kunye nobusuku, indawo yokuhlala kunye nezinye izinto, iya kuchazwa ngokubanzi malunga ne-450-550.Ukuba umsinga uphantsi kakhulu, umsinga uya kuba mkhulu kakhulu kwaye ubushushu buya kuba bukhulu kakhulu.Kwimeko ye-inverter ephakathi, i-voltage ephumayo imalunga ne-300V kwaye okwangoku imalunga ne-1000A kwi-1000VDC, kwaye i-voltage ephumayo yi-540V kwi-1500VDC, kwaye imveliso yangoku imalunga ne-1100A.Umahluko awukho mkhulu, ngoko ke inqanaba langoku lokukhethwa kwesixhobo aliyi kuba lihluke kakhulu, kodwa izinga lombane lonyuswa.Oku kulandelayo kuya kuxubusha amandla ombane asecaleni njenge-540V.

Ukusetyenziswa kwe-1500V inverter yelanga kwisikhululo samandla se-photovoltaic

Kwizikhululo zamandla omhlaba omkhulu, izikhululo zamandla eziphantsi komhlaba ziyi-inverters ezicocekileyo ezixhunyiwe kwigridi, kwaye ii-inverters eziphambili ezisetyenzisiweyo ziphakathi, zisasazwa kunye ne-high-power string inverters.Xa kusetyenziswa inkqubo ye-1500V, ilahleko yomgca we-DC iya kuba Nciphisa, ukusebenza kakuhle kwe-inverter kuya kwanda.Ukusebenza kwenkqubo yonke kulindeleke ukuba kunyuke nge-1.5% -2%, kuba kuya kubakho i-transformer yesinyathelo-up kwicala lemveliso ye-inverter ukunyusa i-voltage ephakathi ukuhambisa amandla kwigridi ngaphandle kwemfuneko enkulu. utshintsho kwisicwangciso senkqubo.

Thatha iprojekthi ye-1MW njengomzekelo (umtya ngamnye uneemodyuli ezingama-250W)