Kodi dongosolo la 1500V lingachepetse bwino mtengo pa kilowatt-ola la photovoltaic system?

Mosasamala kanthu zakunja kapena zapakhomo, gawo la ntchito la 1500V likukulirakulira.Malinga ndi ziwerengero za IHS, mu 2018, kugwiritsa ntchito 1500V m'malo opangira magetsi akunja kupitilira 50%;malinga ndi ziwerengero zoyamba, pakati pa gulu lachitatu la othamanga kutsogolo mu 2018, gawo la ntchito la 1500V linali pakati pa 15% ndi 20%.Kodi dongosolo la 1500V lingachepetse bwino mtengo wa kilowatt pa ola limodzi la polojekiti?Pepalali limapanga kusanthula kofananira kwachuma chamagulu awiri amagetsi kudzera muzowerengera zamalingaliro ndi data yeniyeni.

1. Ndondomeko yoyambira yopangira

Pofuna kusanthula mtengo wa dongosolo la 1500V, ndondomeko yokhazikika imatengedwa, ndipo mtengo wamtundu wa 1000V umafananizidwa ndi kuchuluka kwa uinjiniya.

Kuwerengera maziko

(1) Malo opangira magetsi pansi, malo athyathyathya, mphamvu zokhazikitsidwa sizimaletsedwa ndi malo;

(2) Kutentha kwambiri komanso kutentha kochepa kwambiri kwa malo a polojekiti kudzaganiziridwa molingana ndi 40 ℃ ndi -20 ℃.

(3) Themagawo ofunikira a zigawo zosankhidwa ndi ma invertersndi izi.

Kapangidwe kazachuma ka 1500V system

Kupyolera mu kusanthula koyerekeza, zikuwoneka kuti poyerekeza ndi machitidwe achikhalidwe a 1000V, dongosolo la 1500V limapulumutsa pafupifupi 0.1 yuan/W pamtengo wadongosolo.

3. Mphamvu ya 1500V pakupanga mphamvu

Kuwerengera:

Pogwiritsa ntchito gawo lomwelo, sipadzakhala kusiyana kwa mphamvu zamagetsi chifukwa cha kusiyana kwa ma module;potengera malo athyathyathya, sipadzakhala kutsekeka kwa mthunzi chifukwa cha kusintha kwa malo.
Kusiyana kwa kupanga magetsi kumatengera zinthu ziwiri:kutayika kosagwirizana pakati pa gawo ndi chingwe, kutayika kwa mzere wa DC ndi kutayika kwa mzere wa AC.

1. Kutayika kosagwirizana pakati pa zigawo ndi zingwe Chiwerengero cha zigawo zotsatizana mu nthambi imodzi chawonjezeka kuchokera ku 22 mpaka 34. Chifukwa cha ± 3W kupatuka kwa mphamvu pakati pa zigawo zosiyanasiyana, kutaya mphamvu pakati pa zigawo za 1500V zidzawonjezeka, koma Palibe mawerengedwe ochuluka. zitha kupangidwa.Chiwerengero cha njira zopezera njira za inverter imodzi zawonjezeka kuchokera ku 12 mpaka 18, koma chiwerengero cha MPPT chotsatira njira za inverter chawonjezeka kuchokera ku 6 mpaka 9 kuti zitsimikizire kuti nthambi za 2 zikugwirizana ndi 1 MPPT.Choncho, pakati pa zingwe Kutayika kwa MPPT sikudzawonjezeka.

2. Fomula yowerengera ya kutayika kwa mzere wa DC ndi AC: Q loss=I2R=(P/U)2R= ρ(P/U)2(L/S)1)

Kuwerengera kwa mzere wa DC: Chiŵerengero cha imfa ya mzere wa DC wa nthambi imodzi

Kupyolera mu zowerengera zapamwambazi, zikuwoneka kuti kutayika kwa mzere wa DC wa 1500V dongosolo ndi 0.765 nthawi ya 1000V system, yomwe ili yofanana ndi kuchepetsa 23.5% kutayika kwa mzere wa DC.

Gome lowerengera kutayika kwa mzere wa AC: chiŵerengero cha kutaya kwa mzere wa AC wa inverter imodzi

Kupyolera mu zowerengera zapamwambazi, zimapezeka kuti kutayika kwa mzere wa DC wa dongosolo la 1500V ndi 0.263 nthawi ya dongosolo la 1000V, lomwe liri lofanana ndi kuchepetsa 73.7% ya kutayika kwa mzere wa AC.

3. Deta yeniyeni yeniyeni Popeza kutayika kosagwirizana pakati pa zigawo sikungathe kuwerengedwa mochulukira, ndipo chilengedwe chenichenicho chimakhala ndi udindo, vuto lenileni limagwiritsidwa ntchito kufotokozera.Nkhaniyi imagwiritsa ntchito deta yeniyeni yopangira mphamvu ya gulu lachitatu la polojekiti yoyendetsa kutsogolo, ndipo nthawi yosonkhanitsa deta ndi kuyambira May mpaka June 2019, chiwerengero cha miyezi iwiri ya deta.

Kuyerekezera mphamvu zamagetsi pakati pa 1000V ndi 1500V machitidwe

Kuchokera patebulo lomwe lili pamwambapa, zitha kupezeka kuti pamalo omwewo polojekitiyo, pogwiritsa ntchito zida zomwezo, opanga ma inverter, ndi njira yolumikizira mabakiti omwewo, kuyambira Meyi mpaka Juni 2019, maola opangira magetsi a 1500V system. ndi 1.55% apamwamba kuposa a 1000V system.Zitha kuwoneka kuti ngakhale kuwonjezeka kwa chiwerengero cha zigawo za chingwe chimodzi kudzawonjezera kutayika kosagwirizana pakati pa zigawo, kungachepetse kutaya kwa mzere wa DC ndi pafupifupi 23.5% ndi kutayika kwa mzere wa AC pafupifupi 73.7%.Dongosolo la 1500V litha kukulitsa mphamvu za polojekitiyi.

4. Kusanthula kwathunthu

Kupyolera mu kusanthula koyambirira, zitha kupezeka kuti makina a 1500V amafananizidwa ndi machitidwe achikhalidwe a 1000V:

1) Ikhozasungani pafupifupi 0.1 yuan/W ya mtengo wadongosolo;

2) Ngakhale kuwonjezeka kwa chiwerengero cha zigawo za chingwe chimodzi kudzawonjezera kutayika kosagwirizana pakati pa zigawo, kungachepetse pafupifupi 23.5% ya kutayika kwa mzere wa DC ndi pafupifupi 73.7% ya kutayika kwa mzere wa AC, ndidongosolo la 1500V lidzawonjezera mphamvu zopangira pulojekitiyi.Choncho, mtengo wa magetsi ukhoza kuchepetsedwa kufika pamlingo winawake.Malinga ndi Dong Xiaoqing, Dean of Hebei Energy Engineering Institute, oposa 50% a mapulani a polojekiti ya photovoltaic yomwe inamalizidwa ndi bungwe chaka chino asankha 1500V;zikuyembekezeka kuti gawo la 1500V m'malo opangira magetsi padziko lonse lapansi mu 2019 lidzafika pafupifupi 35%;idzawonjezekanso mu 2020. Bungwe lodziwika bwino la akatswiri padziko lonse la IHS Markit linapereka chiyembekezo chowonjezereka.Mu lipoti lawo losanthula msika wapadziko lonse wa 1500V, adawonetsa kuti sikelo yapadziko lonse lapansi ya 1500V photovoltaic power station idzapitilira 100GW zaka ziwiri zikubwerazi.

Kuneneratu za kuchuluka kwa 1500V m'malo opangira magetsi padziko lonse lapansi

Mosakayikira, monga makampani opanga photovoltaic padziko lonse akufulumizitsa ndondomeko ya chithandizo, ndi kufunafuna kwambiri mtengo wa magetsi, 1500V monga njira yothetsera vutoli yomwe ingachepetse mtengo wa magetsi idzagwiritsidwa ntchito mowonjezereka.

Kusungirako mphamvu kwa 1500V kudzakhala kofala mtsogolomu

Mu July 2014, inverter ya SMA 1500V system inayikidwa mu 3.2MW photovoltaic project ku Kassel Industrial Park, Germany.

Mu Seputembala 2014, ma module a Trina Solar a magalasi awiri a photovoltaic adalandira satifiketi yoyamba ya 1500V PID yoperekedwa ndi TUV Rheinland ku China.

Mu Novembala 2014, Longma Technology idamaliza kukonza dongosolo la DC1500V.

Mu Epulo 2015, Gulu la TUV Rheinland linachita semina ya 2015 "Photovoltaic Modules/Parts 1500V Certification".

Mu June 2015, Projoy adayambitsa mndandanda wa PEDS wa ma switch a photovoltaic DC a 1500V photovoltaic systems.

Mu July 2015, Yingli Company analengeza chitukuko cha zotayidwa chimango msonkhano ndi pazipita voteji dongosolo 1500 volts, makamaka kwa malo magetsi pansi.

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Opanga m'magawo onse amakampani a photovoltaic akuyambitsa mwachangu zida za 1500V.Chifukwa chiyani "1500V" ikutchulidwa pafupipafupi?Kodi nthawi ya 1500V photovoltaic systems ikubweradi?

Kwa nthawi yaitali, ndalama zopangira mphamvu zowonjezera mphamvu zakhala chimodzi mwa zifukwa zazikulu zomwe zimalepheretsa chitukuko cha mafakitale a photovoltaic.Momwe mungachepetsere mtengo pa kilowatt-ola la ma photovoltaic systems ndikuwongolera mphamvu zamagetsiwakhala nkhani yaikulu ya mafakitale a photovoltaic.1500V komanso machitidwe apamwamba amatanthauza mtengo wotsika wadongosolo.Zigawo monga ma module a photovoltaic ndi ma switch a DC, makamaka ma inverters, amagwira ntchito yofunika kwambiri.

Ubwino wa 1500V photovoltaic inverter

Powonjezera magetsi olowera, kutalika kwa chingwe chilichonse kumatha kuonjezedwa ndi 50%, zomwe zingachepetse kuchuluka kwa zingwe za DC zomwe zimalumikizidwa ndi inverter komanso kuchuluka kwa ma inverters ophatikizira bokosi.Panthawi imodzimodziyo, mabokosi ophatikizira, ma inverters, ma transformer, ndi zina zotero. Mphamvu yamagetsi yamagetsi yamagetsi ikuwonjezeka, voliyumu imachepetsedwa, ndipo ntchito yoyendetsa ndi kukonza imachepetsedwa, zomwe zimathandiza kuchepetsa mtengo wa photovoltaic. machitidwe.

Powonjezera mphamvu yotulutsa mbali, mphamvu yamagetsi ya inverter imatha kuwonjezeka.Pansi pa msinkhu womwewo, mphamvuyo imatha kuwirikiza kawiri.Kuchulukitsa kwamagetsi ndi kutulutsa kwamagetsi kumatha kuchepetsa kutayika kwa chingwe cha DC ndi kutayika kwa thiransifoma, motero kukulitsa mphamvu zopangira mphamvu.

Kusankhidwa kwa 1500V photovoltaic inverter

Kuchokera pamawonekedwe amagetsi, kukumana ndi 1500V ndikosavuta kuposa kuswa ukadaulo wa 1500V pazinthu zama module.Pambuyo pake, zinthu zonse zomwe tatchulazi zimapangidwira kuchokera ku makampani okhwima kuti athandizire photovoltaics.Poona 1500VDC yapansi panthaka, inverters galimoto traction, zipangizo mphamvu sadzakhala vuto kusankha, kuphatikizapo Mitsubishi, Infineon, etc. ndi zipangizo mphamvu pamwamba 2000V, capacitors akhoza olumikizidwa mu mndandanda kuonjezera mlingo voteji, ndipo tsopano ndi Projoy etc. Ndi switch ya 1500V yakhazikitsidwa, opanga zida zosiyanasiyana, JA Solar, Canadian Solar, ndi Trina onse akhazikitsa zida za 1500V.Kusankhidwa kwa dongosolo lonse la inverter sikudzakhala vuto.

Kuchokera pamawonedwe a batri, chingwe cha mapanelo a 22 chimagwiritsidwa ntchito kwambiri pa 1000V, ndipo chingwe cha 1500V dongosolo chiyenera kukhala pafupifupi 33. Malingana ndi kutentha kwa zigawozo, mphamvu yaikulu yamagetsi idzakhala pafupifupi 26. -37V.Mitundu yamagetsi ya MPP ya zigawo za zingwe idzakhala yozungulira 850-1220V, ndipo magetsi otsika kwambiri osinthidwa kukhala mbali ya AC ndi 810 / 1.414 = 601V.Poganizira kusinthasintha kwa 10% komanso m'mawa ndi usiku, pogona ndi zina, zimatanthauzidwa pafupifupi 450-550.Ngati madziwo ndi otsika kwambiri, magetsiwo amakhala aakulu kwambiri ndipo kutentha kumakhala kwakukulu.Pankhani ya inverter centralized, voteji linanena bungwe pafupifupi 300V ndipo panopa ndi za 1000A pa 1000VDC, ndi linanena bungwe voteji ndi 540V pa 1500VDC, ndi linanena bungwe panopa ndi za 1100A.Kusiyanitsa sikuli kwakukulu, kotero mlingo wamakono wa kusankha kwa chipangizo sudzakhala wosiyana kwambiri, koma mlingo wamagetsi ukuwonjezeka.Zotsatirazi zikambirana za voteji ya mbali ngati 540V.

Kugwiritsa ntchito 1500V solar inverter mu photovoltaic power station

Kwa malo akuluakulu opangira magetsi apansi, malo opangira magetsi apansi ndi ma inverters ogwirizana ndi gridi, ndipo ma inverters akuluakulu omwe amagwiritsidwa ntchito ndi apakati, ogawidwa ndi okwera kwambiri.Dongosolo la 1500V likagwiritsidwa ntchito, kutayika kwa mzere wa DC kudzakhala Kuchepa, mphamvu ya inverter idzawonjezekanso.Kugwiritsa ntchito bwino kwa dongosolo lonselo kukuyembekezeka kukwera ndi 1.5% -2%, chifukwa padzakhala chosinthira chowonjezera kumbali yakutulutsa kwa inverter kuti ipititse patsogolo mphamvu yamagetsi kuti ipereke mphamvu ku gululi popanda kufunikira kwa Major. kusintha kwa dongosolo dongosolo.

Tengani projekiti ya 1MW monga chitsanzo (chingwe chilichonse ndi ma module a 250W)