Shin tsarin 1500V zai iya rage farashin ta kowace kilowatt-hour na tsarin photovoltaic yadda ya kamata?

Ko da na waje ko na gida, adadin aikace-aikacen tsarin 1500V yana ƙaruwa.Bisa ga kididdigar IHS, a cikin 2018, aikace-aikacen 1500V a cikin manyan tashoshin wutar lantarki na kasashen waje ya wuce 50%;bisa ga kididdigar farko, a cikin rukuni na uku na gaba-gaba a cikin 2018, adadin aikace-aikacen 1500V ya kasance tsakanin 15% da 20%.Shin tsarin 1500V zai iya rage farashin kowane kilowatt-awa na aikin yadda ya kamata?Wannan takarda tana yin nazarin kwatancen tattalin arziki na matakan ƙarfin lantarki guda biyu ta hanyar ƙididdige ƙididdiga da ainihin bayanan shari'a.

1. Tsarin ƙira na asali

Don nazarin matakin farashin tsarin 1500V, an yi amfani da tsarin ƙira na al'ada, kuma ana kwatanta farashin tsarin 1000V na gargajiya bisa ga yawan aikin injiniya.

Tsarin lissafi

(1) Tashar wutar lantarki ta ƙasa, fili mai faɗi, ƙarfin shigar ba'a iyakance ta wurin ƙasa ba;

(2) Za a yi la'akari da matsanancin zafin jiki da ƙananan zafin jiki na wurin aikin bisa ga 40 ℃ da -20 ℃.

(3) Kumamabuɗin maɓalli na abubuwan da aka zaɓa da inverterssune kamar haka.

Tsarin zuba jari na tsarin 1500V

Ta hanyar nazarin kwatancen, an gano cewa idan aka kwatanta da tsarin 1000V na gargajiya, tsarin 1500V yana adana kusan 0.1 yuan / W na farashin tsarin.

3. Tasirin 1500V akan samar da wutar lantarki

Tsarin lissafi:

Yin amfani da tsarin guda ɗaya, ba za a sami bambanci a cikin samar da wutar lantarki ba saboda bambance-bambancen tsarin;idan aka yi la’akari da fili, ba za a sami rufe inuwa ba saboda canje-canjen yanayi.
Bambancin samar da wutar lantarki ya dogara ne akan abubuwa biyu:rashin daidaituwa tsakanin module da kirtani, asarar layin DC da asarar layin AC.

1. Rashin daidaituwa tsakanin sassa da kirtani An ƙara yawan adadin abubuwan da aka haɗa a cikin reshe guda ɗaya daga 22 zuwa 34. Saboda bambancin wutar lantarki na ± 3W tsakanin sassa daban-daban, asarar wutar lantarki tsakanin sassan tsarin 1500V zai karu, amma Babu ƙididdiga masu yawa. za a iya yi.An ƙara adadin hanyoyin shiga na inverter guda ɗaya daga 12 zuwa 18, amma an ƙara yawan tashoshin bin diddigin MPPT daga 6 zuwa 9 don tabbatar da cewa rassa 2 sun dace da 1 MPPT.Saboda haka, tsakanin kirtani Rashin MPPT ba zai karu ba.

2. Ƙididdigar ƙididdiga don asarar layin DC da AC: Q asarar = I2R = (P / U) 2R = ρ (P / U) 2 (L / S) 1)

Teburin lissafin asarar layin DC: Raɗin asarar layin DC na reshe ɗaya

Ta hanyar lissafin ka'idar da ke sama, an gano cewa asarar layin DC na tsarin 1500V shine sau 0.765 na tsarin 1000V, wanda yayi daidai da raguwar 23.5% a cikin asarar layin DC.

Teburin lissafin asarar layin AC: Raɗin asarar layin AC na inverter guda ɗaya

Ta hanyar lissafin ka'idar da ke sama, an gano cewa asarar layin DC na tsarin 1500V shine sau 0.263 na tsarin 1000V, wanda yayi daidai da raguwar 73.7% na asarar layin AC.

3. Bayanan shari'a na ainihi Tun da rashin daidaituwa tsakanin abubuwan da aka haɗa ba za a iya ƙididdige su da ƙididdigewa ba, kuma ainihin yanayin ya fi dacewa, ana amfani da ainihin lamarin don ƙarin bayani.Wannan labarin yana amfani da ainihin bayanan samar da wutar lantarki na rukuni na uku na aikin gaba-gaba, kuma lokacin tattara bayanai yana daga Mayu zuwa Yuni 2019, jimlar watanni 2 na bayanai.

Kwatanta samar da wutar lantarki tsakanin tsarin 1000V da 1500V

Daga teburin da ke sama, ana iya gano cewa a wurin aikin guda ɗaya, ta amfani da kayan aikin iri ɗaya, samfuran masana'antun inverter, da kuma hanyar shigarwa iri ɗaya, a cikin lokacin daga Mayu zuwa Yuni 2019, awoyi na samar da wutar lantarki na tsarin 1500V. sun fi 1.55% sama da na tsarin 1000V.Ana iya ganin cewa ko da yake karuwar adadin abubuwan haɗin igiyoyi guda ɗaya zai ƙara asarar rashin daidaituwa tsakanin sassan, zai iya rage asarar layin DC da kusan 23.5% da asarar layin AC da kusan 73.7%.Tsarin 1500V na iya ƙara ƙarfin ƙarfin aikin.

4. Cikakken bincike

Ta hanyar bincike na baya, ana iya gano cewa ana kwatanta tsarin 1500V tare da tsarin 1000V na gargajiya:

1) Yana iyaajiye kusan 0.1 yuan/W na farashin tsarin;

2) Ko da yake karuwar adadin abubuwan haɗin igiyoyi guda ɗaya zai ƙara asarar rashin daidaituwa tsakanin abubuwan haɗin gwiwa, zai iya rage kusan 23.5% na asarar layin DC da kusan 73.7% na asarar layin AC, kumatsarin 1500V zai kara samar da wutar lantarkin aikin.Don haka, ana iya rage farashin wutar lantarki zuwa wani ɗan lokaci.A cewar Dong Xiaoqing, shugaban Cibiyar Injiniyan Makamashi ta Hebei, sama da kashi 50% na tsare-tsaren tsara ayyukan samar da wutar lantarki da cibiyar ta kammala a bana sun zabo 1500V;ana sa ran rabon 1500V a tashoshin samar da wutar lantarki a fadin kasar a shekarar 2019 zai kai kusan kashi 35%;zai kara karuwa a cikin 2020. Shahararriyar kungiyar tuntuba ta kasa da kasa IHS Markit ta ba da kyakkyawan hasashen.A cikin rahoton bincike na kasuwa na 1500V na duniya na hoto, sun nuna cewa ma'aunin tashar wutar lantarki na 1500V na duniya zai wuce 100GW a cikin shekaru biyu masu zuwa.

Hasashen adadin 1500V a tashoshin wutar lantarki na duniya

Babu shakka, yayin da masana'antar photovoltaic ta duniya ta hanzarta aiwatar da tsarin tallafi, da kuma matsananciyar biyan kuɗin wutar lantarki, 1500V a matsayin mafita na fasaha wanda zai iya rage farashin wutar lantarki za a ƙara yin amfani da shi.

1500V makamashi ajiya zai zama na al'ada a nan gaba

A cikin Yuli 2014, an yi amfani da inverter na SMA 1500V tsarin a cikin 3.2MW photovoltaic aikin a Kassel Industrial Park, Jamus.

A cikin Satumba 2014, Trina Solar's biyu-gilashi photovoltaic modules samu na farko 1500V PID takardar shaidar da TUV Rheinland a kasar Sin.

A cikin Nuwamba 2014, Longma Technology ya kammala haɓaka tsarin DC1500V.

A cikin Afrilu 2015, TUV Rheinland Group gudanar da 2015 "Photovoltaic Modules / Parts 1500V Certification" taron karawa juna sani.

A cikin watan Yuni 2015, Projoy ya ƙaddamar da jerin PEDS na sauye-sauye na hoto na DC don tsarin 1500V photovoltaic.

A cikin Yuli 2015, Yingli Company ya sanar da ci gaban wani aluminum frame taro tare da matsakaicin tsarin ƙarfin lantarki na 1500 volts, musamman ga kasa ikon tashoshin.

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Masu sana'a a duk sassan masana'antar hoto suna ƙaddamar da samfurori na tsarin 1500V.Me yasa ake ambaton "1500V" akai-akai?Shin zamanin 1500V na tsarin photovoltaic yana zuwa da gaske?

Na dogon lokaci, yawan farashin samar da wutar lantarki ya kasance daya daga cikin manyan dalilan da ke hana ci gaban masana'antar photovoltaic.Yadda za a rage farashin kowace kilowatt-hour na tsarin photovoltaic da inganta ingantaccen samar da wutar lantarkiya zama babban batu na masana'antar photovoltaic.1500V kuma har ma mafi girma tsarin yana nufin ƙananan farashin tsarin.Abubuwan da aka haɗa kamar na'urori na hotovoltaic da masu sauya DC, musamman masu juyawa, suna taka muhimmiyar rawa.

Abvantbuwan amfãni na 1500V photovoltaic inverter

Ta hanyar haɓaka ƙarfin shigarwar, tsawon kowane kirtani zai iya ƙaruwa da kashi 50%, wanda zai iya rage adadin igiyoyin DC da aka haɗa zuwa inverter da adadin masu haɗa akwatin inverters.A lokaci guda kuma, akwatunan haɗakarwa, inverters, masu canzawa, da dai sauransu. Ƙarfafa ƙarfin wutar lantarki na kayan aikin lantarki yana ƙaruwa, rage yawan aiki, da kuma rage yawan aikin sufuri da kiyayewa, wanda ke taimakawa wajen rage farashin photovoltaic. tsarin.

Ta hanyar haɓaka ƙarfin juzu'i na gefen fitarwa, ana iya ƙara ƙarfin ƙarfin inverter.Ƙarƙashin matakin na yanzu, ƙarfin yana iya kusan ninki biyu.Matsayi mafi girma na shigarwa da ƙarfin fitarwa na iya rage asarar tsarin kebul na DC da asarar na'urar, don haka ƙara ƙarfin ƙarfin wutar lantarki.

Zaɓin 1500V mai juyawa mai ɗaukar hoto

Daga hangen nesa na lantarki, saduwa da 1500V ya fi sauƙi fiye da karya ta hanyar fasahar 1500V don samfuran samfura.Bayan haka, duk samfuran da aka ambata a sama suna haɓaka daga masana'antar balagagge don tallafawa photovoltaics.Dangane da hanyar jirgin karkashin kasa na 1500VDC, masu jujjuya abin hawa, na'urorin wutar lantarki ba za su zama matsalar zaɓi ba, gami da Mitsubishi, Infineon, da dai sauransu suna da na'urorin wuta sama da 2000V, ana iya haɗa capacitors a cikin jerin don ƙara matakin ƙarfin lantarki, kuma yanzu ta Projoy da dai sauransu. Tare da ƙaddamar da maɓallin 1500V, masana'antun sassa daban-daban, JA Solar, Canadian Solar, da Trina duk sun ƙaddamar da kayan aikin 1500V.Zaɓin duk tsarin inverter ba zai zama matsala ba.

Daga hangen nesa na baturin baturi, ana amfani da kirtani na nau'i na 22 don 1000V, kuma kirtani na tsarin 1500V ya kamata ya kasance game da 33. Dangane da yanayin zafin jiki na abubuwan da aka gyara, matsakaicin ƙarfin wutar lantarki zai kasance a kusa da 26. -37V.Matsakaicin ƙarfin lantarki na MPP na abubuwan haɗin igiyoyin za su kasance a kusa da 850-1220V, kuma mafi ƙarancin ƙarfin lantarki da aka canza zuwa gefen AC shine 810/1.414=601V.Yin la'akari da jujjuyawar kashi 10% da safiya da dare, tsari da sauran dalilai, gabaɗaya za a ayyana shi a kusan 450-550.Idan na yanzu ya yi ƙasa sosai, na yanzu zai yi girma da yawa kuma zafi zai yi girma.Idan aka yi la’akari da na’urar inverter ta tsakiya, wutar lantarkin da ake fitarwa ta kai kusan 300V, ita kuma ta yanzu tana da kusan 1000A a 1000VDC, kuma wutar lantarkin da ake fitarwa ita ce 540V a 1500VDC, kuma abin da ake fitarwa ya kai kusan 1100A.Bambanci ba babba ba ne, don haka matakin yanzu na zaɓin na'urar ba zai bambanta sosai ba, amma matakin ƙarfin lantarki yana ƙaruwa.Masu zuwa za su tattauna ƙarfin wutar lantarki na gefe kamar 540V.

Aikace-aikacen mai canza hasken rana na 1500V a cikin tashar wutar lantarki ta photovoltaic

Don manyan tashoshin wutar lantarki na ƙasa, tashoshin wutar lantarki masu tsattsauran ra'ayi ne masu haɗawa da grid, kuma manyan inverters da ake amfani da su an daidaita su, rarrabawa da manyan inverters.Lokacin da aka yi amfani da tsarin 1500V, asarar layin DC zai zama Ragewa, ingancin inverter kuma zai karu.Ana sa ran ingancin tsarin duka zai karu da kashi 1.5% -2%, saboda za a sami na'ura mai canzawa a bangaren fitarwa na inverter don haɓaka wutar lantarki ta tsakiya don watsa wutar lantarki zuwa grid ba tare da buƙatar Manjo ba. canje-canje ga tsarin tsarin.

Ɗauki aikin 1MW a matsayin misali (kowane kirtani nau'ikan 250W ne)