Ntchito ya 1500Vdc mu pulogalamu ya photovoltaic
Kuchepetsa ndalama komanso kuwonjezeka kwadongosolo kwakhala kukuwongolera zoyeserera zamagetsi
Mchitidwe wa 1500VDC ndi kusankha kosapeweka kwamitundu
Kuchepetsa ndalama komanso kuwonjezeka kwantchito kwakhala malangizo a zoyeserera za anthu Zamagetsi. Pakati pawo, gawo lazopanga ukadaulo ndikofunikira. Mu 2019, ndi chithandizo chofulumizidwa ku China, 1500Vdc ili ndi chiyembekezo chachikulu.
Malinga ndi chidziwitso cha IHS kuchokera ku bungwe lofufuza ndi kusanthula, dongosolo la 1500Vdc lidakonzedwa koyamba mu 2012, ndipo FirstSolar idapatsa mphamvu yoyamba ya 1500Vdc photovoltaic magetsi padziko lonse lapansi mu 2014. Mu Januwale 2016, polojekiti yoyamba yowonetsera 1500Vdc Golmud Sunshine Qiheng New Energy Golmud 30MW Photovoltaic Power Generation Project idalumikizidwa mwadongosolo ndi gridi yopangira magetsi, ndikuwonetsa kuti ntchito ya 1500Vdc yapa photovoltaic idalowadi gawo lazowonetsera zazikulu. Zaka ziwiri pambuyo pake, mu 2018, ukadaulo wa 1500Vdc wagwiritsidwa ntchito pamlingo waukulu padziko lonse lapansi komanso kunyumba. Mwa gulu lachitatu la ntchito zotsogola zomwe zidayamba zomangidwa mu 2018, ntchito ya Golmud yokhala ndi mtengo wotsika kwambiri (0.31 yuan / kWh), komanso ntchito za GCL Delingha ndi Chint Baicheng zonse zatengera ukadaulo wa 1500Vdc. Poyerekeza ndi chikhalidwe cha 1000Vdc photovoltaic, pulogalamu ya 11500Vdc mu pulogalamu ya photovoltaic yakhala ikugwiritsidwa ntchito kwambiri posachedwa. Kenako titha kukhala ndi mafunso ngati awa:
Chifukwa chiyani mukuwonjezera magetsi kuchokera ku 1000Vdc mpaka 1500Vdc?
Kupatula pa inverter, kodi zida zina zamagetsi zimatha kupirira mphamvu yamagetsi ya 1500Vdc?
Kodi pulogalamu ya 1500Vdc ndiyothandiza bwanji mukamagwiritsa ntchito?
1. Ubwino waluso ndi zovuta za 1500Vdc kugwiritsa ntchito pulogalamu ya photovoltaic
kusanthula mwayi
1) Kuchepetsa kuchuluka kwa mphambano bokosi DC chingwe
Mu "Code for Design of Photovoltaic Power Plants (GB 50797-2012)", kufanana kwa ma module a photovoltaic ndi ma inverters akuyenera kutsatira njira zotsatirazi: Malinga ndi fomuyi pamwambapa ndi magawo oyenera a zigawozi, chingwe chilichonse cha dongosolo la 1000Vdc Nthawi zambiri amakhala 22 pazinthu, pomwe chingwe chilichonse cha 1500Vdc chitha kuloleza magawo 32.
Kutenga gawo la 285W gawo la 2.5MW lamagetsi lamagetsi ndi zingwe zopangira zingwe mwachitsanzo, dongosolo la 1000Vdc:
Zingwe za 408 za photovoltaic, ma peyala 816 amulu wa mulu
34 wa 75kW chingwe inverter
Dongosolo 1500Vdc:
Magulu 280 ojambula zithunzi chingwe
700 ma peyala amulu
14 akanema 75kW chingwe inverters
chiwerengero cha zingwe chikuchepa, kuchuluka kwa zingwe za DC zolumikizidwa pakati pazigawo ndi zingwe za AC pakati pazingwe ndi zotembenuza zidzachepetsedwa.
2) Chepetsani kutayika kwa mzere wa DC
= P = IRI = P / U
Increases U ukuwonjezeka ndi 1.5 nthawi → Ndimakhala (1 / 1.5) → P ndimakhala 1 / 2.25
= R = ρL / S DC chingwe L chimakhala 0.67, 0.5 kuposa choyambirira
R (1500Vdc) <0.67 R (1000Vdc)
Mwachidule, 1500VdcP ya DC ili pafupifupi 0.3 nthawi 1000VdcP.
3) Chepetsani kuchuluka kwaukadaulo ndi kulephera
Chifukwa chakuchepa kwa zingwe za DC ndi mabokosi olumikizirana, kuchuluka kwa ma chingwe ophatikizira ndi zingwe zama bokosi olumikizirana omwe adakhazikitsidwa pomanga azichepetsedwa, ndipo mfundo ziwirizi sizingatheke. Chifukwa chake, 1500Vdc imatha kuchepetsa kuchuluka kwakulephera.
4) Kuchepetsa ndalama
Kuchulukitsa kwa zingwe zazingwe zingwe kumachepetsa mtengo wa watt m'modzi. Kusiyanitsa kwakukulu ndi kuchuluka kwa maziko a mulu, kutalika kwa chingwe pambuyo pa kulumikizana kwa DC, ndi kuchuluka kwa mabokosi olumikizirana (apakati).
Poyerekeza ndi chiwonetsero cha zingwe 22 zama 1000Vdc system, chingwe cha 32-chingwe cha 1500Vdc chimatha kupulumutsa ma 3.2 point / W pazingwe ndi mulu woyala.
Kuipa kusanthula
1) Zowonjezera zida zofunikira
Poyerekeza ndi makina a 1000Vdc, voliyumu idakwera kufika 1500Vdc imakhudza kwambiri ma breaker, ma fuseti, zida zoteteza mphezi ndikusintha magetsi, ndikuyika patsogolo zofunika kuthana ndi magetsi komanso kudalirika, ndipo mtengo wagawo lazida zidzawonjezeka .
2) Zofunika zachitetezo chapamwamba
Mphamvu zikachulukirachulukira mpaka 1500Vdc, chiwopsezo chakuwonongeka kwamagetsi chikuwonjezeka, potero kukonza chitetezo ndi kutsekeka kwamagetsi. Kuphatikiza apo, ngozi ikachitika mbali ya DC, ikumana ndi mavuto owonongeka a DC arc. Chifukwa chake, dongosolo la 1500Vdc limakulitsa chitetezo chadongosolo.
3) Zowonjezera kuthekera kwakukhala ndi zotsatira za PID
Ma module a photovoltaic atalumikizidwa motsatana, kutayikira komwe kumapangidwa pakati pa maselo a module yamagetsi yamagetsi ndi nthaka ndichofunikira kwambiri pazotsatira za PID. Mpweya utachuluka kuchokera ku 1000Vdc mpaka 1500Vdc, zikuwonekeratu kuti kusiyana kwamagetsi pakati pa selo ndi nthaka kudzawonjezeka, zomwe zidzakulitsa kuthekera kwa mphamvu ya PID.
4) Lonjezerani kutayika kofananira
Pali kutayika kofananirana pakati pa zingwe za photovoltaic, makamaka chifukwa cha zifukwa izi:
- Mphamvu yamafakitole yama module osiyanasiyana a photovoltaic azitha kupatuka 0 ~ 3%. Ming'alu yomwe imapangidwa poyendetsa komanso kukhazikitsa imatha kupangitsa mphamvu kusintha.
- Kutsekemera kosagwirizana komanso kutsekereza kosagwirizana mutakhazikitsa kumapangitsanso kupatuka kwamagetsi.
- Poona zomwe zatchulidwazi, kukulitsa chingwe chilichonse kuchokera pazinthu 22 kupita pazinthu 32 kudzawonjezera kutayika kofananira.
- Poyankha pamavuto omwe ali pamwambapa a 1500V, patatha zaka pafupifupi ziwiri zafukufuku ndikufufuza, makampani azida adasinthanso.
Chachiwiri, zida za 1500Vdc photovoltaic system
1. Gawo la Photovoltaic
First Solar, Artus, Tianhe, Yingli, ndi makampani ena adatsogolera kukhazikitsa ma module 1500Vdc photovoltaic.
Kuyambira pomwe 1500Vdc yoyamba kupanga magetsi ya photovoltaic idamalizidwa mu 2014, kuchuluka kwamagetsi a 1500V akupitilizabe kukulira. Poyendetsedwa ndi izi, mulingo wa IEC udayamba kuphatikiza zofunikira za 1500V pakukhazikitsa muyeso watsopano. Mu 2016, IEC 61215 (ya C-Si), IEC 61646 (yamafilimu owonda), ndi IEC61730 ndi gawo lazachitetezo pansi pa 1500V. Miyezo itatu iyi imathandizira kuyesa kuyesa ndi kuyeserera kofunikira pamachitidwe a 1500V ndikuphwanya chopinga chomaliza cha zofunikira za 1500V, zomwe zimalimbikitsa kwambiri kutsata mfundo za 1500V.
Pakadali pano, opanga mzere woyamba waku China adakhazikitsa zinthu zokhwima za 1500V, kuphatikiza zida zamagulu amodzi, zida zammbali ziwiri, magalasi awiri, ndipo alandila chitsimikizo chokhudzana ndi IEC.
Poyankha vuto la PID lazinthu za 1500V, opanga omwe akupanga pano amatenga njira ziwiri zotsatirazi kuti zitsimikizire kuti magwiridwe antchito a PID azinthu za 1500V ndi zida wamba za 1000V amakhalabe pamlingo womwewo.
1) Pakukweza bokosi lolumikizira ndikukhathamiritsa kapangidwe kake kuti mukwaniritse mtunda wa 1500V ndikubwezeretsa;
2) Makulidwe azinthu zakumbuyo akuwonjezeka ndi 40% kupititsa patsogolo kutchinjiriza ndikuwonetsetsa chitetezo cha zigawo;
Pazotsatira za PID, wopanga aliyense amatsimikizira kuti pansi pa dongosolo la 1500V, chipangizocho chimatsimikizirabe kuti kuchepa kwa PID ndi kochepera 5%, kuwonetsetsa kuti magwiridwe antchito a PID azinthu zofananira amakhalabe pamlingo womwewo.
2. Zosintha
Opanga akunja monga SMA / GE / PE / INGETEAM / TEMIC nthawi zambiri adakhazikitsa njira zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zozungulira zaka za 1500. Zambiri zopanga zoweta zoyambira zakhazikitsa zida zama inverter kutengera mndandanda wa 2015V, monga Sungrow SG1500, mndandanda wa SUN3125HA wa Huawei, ndi zina zambiri, ndi zina ndi oyamba kutulutsidwa kumsika waku US.
NB / T 32004: 2013 ndi muyezo womwe zinthu zogulitsa zapakhomo zimayenera kukumana zikagulitsidwa. Kukula koyenera kwa muyeso wowunikirayi ndi cholumikizira cholumikizidwa ndi gridi ya photovoltaic yolumikizidwa ndi dera loyambira PV ndi magetsi osapitilira 1500V DC ndi magetsi otulutsa AC osapitilira 1000V. Mulingo womwewo umaphatikizaponso mtundu wa DC 1500V ndipo umapereka mayeso oyeserera pakuwombera kwa PV, chilolezo chamagetsi, mtunda wolowera, mphamvu yamagetsi yolimbana ndi magetsi, ndi mayeso ena.
3. Bokosi lophatikiza
Miyezo ya bokosi lophatikizira ndi chida chilichonse chofunikira ndi chokonzeka, ndipo 1500Vdc yalowa mu combiner box certification standard CGC / GF 037: 2014 "Photovoltaic combiner zida technical technical".
4. Chingwe
Pakadali pano, mulingo wa 1500V wazingwe zama photovoltaic nawonso wayambitsidwa.
5. Sinthani ndi kuteteza mphezi
M'makampani opanga photovoltaic munthawi ya 1100Vdc, mphamvu yotulutsa ya inverter ili mpaka 500Vac. Mutha kubwereka makina osinthira magawidwe a 690Vac ndi zinthu zothandizira; kuchokera pamagetsi a 380Vac kupita pamagetsi a 500Vac, palibe vuto lofananira. Komabe, koyambirira kwa chaka cha 2015, makina onse opanga zithunzi zamagetsi komanso magetsi analibe magetsi osinthira magetsi a 800Vac / 1000Vac ndi zina, zomwe zidabweretsa zovuta zothandiziranso malonda onse ndi ndalama zothandizira.
Kufotokozera kwathunthu
Dongosolo la photovoltaic la 1500Vdc lakhala likugwiritsidwa ntchito kwambiri kutsidya lina ndipo ndiukadaulo wokhwima wogwiritsa ntchito padziko lonse lapansi.
Chifukwa chake, zida zazikulu za pulogalamu ya photovoltaic zakwaniritsa kupanga zambiri, ndipo mtengo watsika kwambiri poyerekeza ndi chiwonetsero cha 2016.
Ntchito ya 1500Vdc mu pulogalamu ya photovoltaic
Monga tafotokozera pamwambapa, dongosolo la photovoltaic la 1500Vdc lakhala likugwiritsidwa ntchito kunja kwa chaka cha 2014 chifukwa chotsika mtengo komanso mphamvu zamagetsi.
Kufunsira kwa Global 1500Vdc pamlandu wofufuza makina a photovoltaic
Dzuwa loyamba linalengeza mu Meyi 2014 kuti chomera choyamba cha 1500Vdc chomangidwa ku Deming, New Mexico chidayamba kugwiritsidwa ntchito. Mphamvu yonse yamagetsi ndi 52MW, magulu 34 amatengera kapangidwe ka 1000Vdc, ndipo otsala otsala amatenga mawonekedwe a 1500Vdc.
SMA yalengeza mu Julayi 2014 kuti malo ake opangira magetsi a 3.2MW omangidwa ku Sandershauser Berg park park ku Niestetal, Kassel, kumpoto kwa Germany agwiritsidwa ntchito, ndipo chomera chamagetsi chimagwiritsa ntchito 1500Vdc system.
1500Vdc yakhala ikugwiritsidwa ntchito kwambiri pamapulogalamu otsika mtengo
Pakadali pano, LSP yakula bwino T1 + T2 Maphunziro B + C, Gawo I + II PV chipangizo choteteza SPD 1500Vdc, 1200Vdc, 1000Vdc, 600Vdc amagwiritsidwa ntchito kwambiri pakupanga mphamvu ya dzuwa ya photovoltaic.
Kugwiritsa ntchito kwakukulu kwa 1500Vdc m'dongosolo la photovoltaic
Kwa nthawi yoyamba, projekiti ya 257 MW yopanga magetsi ya Fu An Hua Hui ku Vietnam idalumikizidwa bwino pa gridi. Njira zonse zophatikizira za 1500V zosanjikiza zomwe zidagwiritsidwa ntchito kuti zikwaniritse bwino kuvomerezedwa kuchokera pakupanga, kumanga mpaka kulumikiza gridi. Ntchitoyi ili ku Huahui Town, Fuhua County, Phu An Province, Vietnam, ndipo ili m'chigawo chapakati komanso chakumwera. Poganizira za chilengedwe komanso chuma cha ntchitoyi, kasitomala wa projekitiyo pamapeto pake adasankha njira yothetsera vutoli ya 1500V.
Yankho lodalirika
Pachiwonetsero cha pulojekiti yamagetsi yamagetsi, makasitomala ali ndi zofunikira pakumanga ndi mtundu wazogulitsa. Kukhazikitsa kwa projekitiyi mbali ya DC ya ntchitoyi ndi 257 MW, yomwe imapangidwa ndi ma seti 1032 a mabokosi ophatikizira a 1500V DC, ma seti 86 a 1500Vdc 2.5MW ma inverters apakati, ma seti 43 a 5MVA osinthira ma voliyumu apakatikati ndi mayankho ophatikizidwa okhala ndi zida kwa makabati amtanda, kupanga kukhala kosavuta Kukhazikitsa ndi kutumizira kumatha kufupikitsa kayendedwe kake ndikuchepetsa mtengo wamagetsi.
Yankho la 1500V limabweretsa "ukadaulo waukulu"
Njira yothetsera vutoli ya 1500V yothetsera njira yowonjezera ili ndi mawonekedwe a 1500V, lalikulu lalikulu lalikulu, chiyerekezo chokwanira champhamvu, inverter yamphamvu yayikulu, yowonjezera inverter yowonjezera, ndi zina zambiri, zomwe zimachepetsa mtengo wazida monga zingwe ndi mabokosi olumikizirana. Kuchepetsa ndalama zoyambirira. Makamaka, kapangidwe kake kakulidwe kamene kamawongolera bwino magwiritsidwe ntchito amizere ndikukhazikitsa chiyerekezo chokwanira pakukonzekereratu kuti makina a LCOE akhale oyenera.
Yankho la 1500VDC limagwiritsidwa ntchito m'mapulojekiti a photovoltaic opitilira 900MW ku Vietnam. Vietnam Fu An Hua Hui 257MW kujambula zithunzi ndi projekiti yayikulu kwambiri yopangira magetsi. Monga gulu loyamba la ziwonetsero zatsopano zamagetsi ku Vietnam, ntchitoyi ikayamba kugwira ntchito, idzawonjezera mphamvu ku Vietnam, kuchepetsa vuto la kusowa kwamagetsi kumwera kwa Vietnam, ndikulimbikitsa chitukuko cha zachuma ndi chitukuko ku Vietnam Chofunika kwambiri.
Kodi ntchito ya 1500Vdc m'dongosolo la photovoltaic ikadali yayikulu kwambiri?
Poyerekeza ndi makina a 1000Vdc a photovoltaic omwe amagwiritsidwa ntchito kwambiri m'malo opangira magetsi, kafukufuku wa 1500Vdc mu pulogalamu ya photovoltaic motsogozedwa ndi opanga ma inverter posachedwapa akhala malo otentha kwambiri pamakampani.
Ndikosavuta kukhala ndi mafunso ngati awa:
Chifukwa chiyani mukukweza magetsi kuchokera ku 1000Vdc mpaka 1500Vdc?
Kupatula pa inverter, kodi zida zina zamagetsi zimatha kupirira mphamvu yamagetsi ya 1500Vdc?
Kodi pali amene akugwiritsa ntchito dongosolo la 1500Vdc tsopano? Zakhala bwanji?
Zabwino Zaubwino ndi Zoyipa za 1500Vdc kugwiritsa ntchito pulogalamu ya photovoltaic
1. Kusanthula Kwambiri
1) Chepetsani kugwiritsa ntchito mabokosi ophatikizira ndi zingwe za DC. Chingwe chilichonse cha 1000Vdc dongosolo chimakhala chophatikizira 22, pomwe chingwe chilichonse cha 1500VDC chitha kuloleza magawo 32. Tengani gawo lamagetsi lamagetsi la 265W 1MW monga,
Dongosolo la 1000Vdc: zingwe za 176 za photovoltaic ndi mabokosi 12 ophatikizira;
Dongosolo la 1500Vdc: zingwe za 118 za photovoltaic ndi mabokosi 8 ophatikizira;
Chifukwa chake, kuchuluka kwa zingwe za DC kuchokera pama module a photovoltaic kupita ku bokosi lophatikizira pafupifupi nthawi 0.67, ndipo kuchuluka kwa zingwe za DC kuchokera mubokosi lophatikizira kupita ku inverter pafupifupi nthawi 0.5.
2) Kuchepetsa DC mzere wotayika DCP kutayika = I2R chingwe I = P / U
IncreasesU ikukula ndi 1.5 nthawi → Ndimakhala (1 / 1.5) → P kutaya kumakhala 1 / 2.25
Kuphatikiza apo, R chingwe = ρL / S, L ya chingwe cha DC imakhala 0.67, 0.5 nthawi yoyambirira
Chingwe cha RR (1500Vdc) <0.67R chingwe (1000Vdc)
Mwachidule, kutaya kwa 1500VdcP kwa gawo la DC kuli pafupifupi nthawi 0.3 za kutayika kwa 1000VdcP.
3) Chepetsani kuchuluka kwaukadaulo ndi kulephera
Chiwerengero cha zingwe za DC ndi mabokosi ophatikizira akucheperachepera, kuchuluka kwa ma chingwe ndi cholumikizira mabokosi ophatikizika omwe adakhazikitsidwa pomanga azichepetsedwa, ndipo mfundo ziwirizi sizingatheke. Chifukwa chake, 1500Vdc imatha kuchepetsa kuchuluka kwakulephera.
2. kusanthula zoyipa
1) Kuwonjezeka kwa zida zofunikira Poyerekeza ndi dongosolo la 1000Vdc, kukulitsa mphamvu yamagetsi kufika ku 1500Vdc kumakhudza kwambiri ma breaker, ma fuseti, omanga mphezi, ndikusintha magetsi, ndikupereka patsogolo mphamvu zamagetsi komanso kudalirika. kusintha.
2) Zofunikira zachitetezo chazitali Mphamvu zikawonjezeka kufika ku 1500Vdc, kuopsa kwa kuwonongeka kwa magetsi ndikuwonjezeka kumawonjezeka kuti chitetezo chazitsulo ndi chilolezo chamagetsi chikhale bwino. Kuphatikiza apo, ngati ngozi ipezeka ku mbali ya DC, ikumana ndi vuto lalikulu kwambiri lothetsa arc. Chifukwa chake, dongosolo la 1500Vdc limakweza zofunikira pamakina kuti atetezedwe.
3) Kuchulukitsa kuthekera kwa PID Pambuyo ma module a PV atalumikizidwa motsatana, kutayikira komwe kumapangidwa pakati pama cell a ma voliyumu apamwamba ndi nthaka ndichofunikira chifukwa cha zotsatira za PID (kuti mumve tsatanetsatane, chonde yankhani ku "103 ”Kumbuyo). Mphamvu zikachulukirachulukira kuchokera ku 1000Vdc mpaka 1500Vdc, zikuwonekeratu kuti kusiyana kwamagetsi pakati pa batire ya bat ndi nthaka kudzawonjezeka, zomwe ziwonjezere kuthekera kwa zotsatira za PID.
4) Kuchulukitsa kwofananira Pali kutayika kofananira pakati pa zingwe za photovoltaic, zomwe zimachitika makamaka pazifukwa izi:
Mphamvu yamafakitole yama module osiyanasiyana a photovoltaic azitha kupatuka 0 ~ 3%.
Ming'alu yobisika yopangidwa panthawi yonyamula ndi kukhazikitsa imapangitsa kupatuka kwamagetsi
Kuchepetsa kosagwirizana komanso kutchinjiriza kosagwirizana mukatha kuyambitsa kumapangitsanso kupatuka kwamagetsi.
Poona zomwe zatchulidwazi, kukulitsa chingwe chilichonse kuchokera pazinthu 22 kupita pazinthu 32 kudzawonjezera kutayika kofananira.
3. Kusanthula kwathunthu Pofufuza pamwambapa, ndi 1500Vdc ingati yomwe ingafanane ndi 1000Vdc imatha kukonza magwiridwe antchito, ndipo kuwerengera kwina kumafunikira.
Kuyamba: Poyerekeza ndi 1000Vdc photovoltaic system yomwe imagwiritsidwa ntchito kwambiri popanga magetsi, kafukufuku wa 1500Vdc mu pulogalamu ya photovoltaic motsogozedwa ndi opanga ma inverter yakhala malo opangira ukadaulo waposachedwa. Ndiye titha kukhala ndi mafunso otere.
Chachiwiri, zida zoyambira za photovoltaic system ku 1500Vdc
1) Ma module a Photovoltaic Pakadali pano, FirstSolar, Artes, Trina, Yingli, ndi makampani ena akhazikitsa ma module a 1500Vdc photovoltaic, kuphatikiza ma module wamba ndi ma module awiri agalasi.
2) Inverter Pakadali pano, opanga opanga akhazikitsa ma inverters a 1500Vdc okhala ndi 1MVA ~ 4MVA, omwe agwiritsidwa ntchito m'malo owonetsera magetsi. Mphamvu yamagetsi ya 1500Vdc yakhazikitsidwa ndi miyezo yoyenera ya IEC.
3) Miyezo yamabokosi ophatikizika ndi zinthu zina zofunika Mabokosi ophatikizika ndi zida zazikuluzikulu zakonzedwa, ndipo 1500Vdc yalowa muyezo wophatikizira mabokosi ovomerezeka a CGC / GF037: 2014 "Mafotokozedwe Akatswiri a Zida Zophatikiza za Photovoltaic"; 1500Vdc yakhala ikudziwitsidwa bwino ndi miyezo yambiri ya IEC yokhala m'gulu la malangizo otsika a voliyumu, monga ma breaker breaker IEC61439-1 ndi IEC60439-1, mafyuluta apadera a photovoltaic IEC60269-6, ndi zida zoteteza mphezi za photovoltaic EN50539-11 / -12 .
Komabe, popeza dongosolo la photovoltaic la 1500Vdc likadali pachiwonetsero ndipo kufunika kwa msika kuli kochepa, zida zomwe tatchulazi sizinayambebe kupanga misa.
Ntchito ya 1500Vdc mu pulogalamu ya photovoltaic
1. Macho Springs Solar Power Station
Firstsolar yalengeza mu Meyi 2014 kuti poyambira magetsi 1500Vdc omaliza ku Deming, NewMexico adagwiritsidwa ntchito. Mphamvu yonse yamagetsi ndi 52MW, magulu 34 amagwiritsira ntchito mawonekedwe a 1000Vdc, ndipo otsala omwe amagwiritsa ntchito mawonekedwe a 1500Vdc.
SMA yalengeza mu Julayi 2014 kuti malo ake opangira magetsi a 3.2MW ku Sandershauser Bergindustrialpark, malo opangira mafakitale ku Niestetal, Kassel, kumpoto kwa Germany, agwiritsidwa ntchito. Chomera chamagetsi chimagwiritsa ntchito makina a 1500Vdc.
2. Milandu yogwiritsira ntchito ku China
Golmud Sunshine Qiheng Chatsopano Energy Golmud 30MW Photovoltaic Project
Mu Januwale 2016, pulogalamu yoyamba yowonetsera mphamvu zamagetsi ya 1500Vdc, Golmud Sunshine Qiheng New Energy Golmud 30MW photovoltaic grid-yolumikizana ndi magetsi, idalumikizidwa ndi gridi yopangira magetsi, posonyeza kuti pulogalamu ya photovoltaic ya 1500Vdc yalowa kale gawo lenileni lowonetsera.
Kupanga kwa zinthu zokhudzana ndi photovoltaic za 1500V kwachitika kale
Zida za Photovoltaic ndi zida zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi komanso zida zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi Potanikira zipangizo za Photovoltaic ndi zida zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi, zamagetsi, na mphambvu, zakusiyana-siyana pya mphambvu, pyakuti pisacitisa kuti mphambvu za Photovoltaic na pinthu pya magetsi pya mphambvu ya dzuwa ya photovoltaic ipangidwe na kupangwa kutowezera mphambvu za DC za 1000V. Kuti tikwaniritse zokolola zabwino zamagetsi, njira yofunikira ikufunika mwachangu kuti muchepetse ndalama zothandizira Photovoltaic pazogwiritsa ntchito magetsi. Chifukwa chake, kupanga kwa zinthu zokhudzana ndi photovoltaic za 1500V kwakhala chizolowezi. Zigawo zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi, zida zamagetsi zamagetsi, zida zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi, zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi, zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zama magetsi, vitata,,, mu mpya, kugenda kwa njinga zino, muzinga, misonkho, mtengo wamtengo wapatali, ndalama zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi, zamagetsi zonse zamagetsi zamagetsi zamagetsi m'mwamba, ndi chimalero chamagetsi ndi mphamvu zamagetsi. Kukhazikitsa zida zatsopanozi ndiukadaulo kumatha kupanga malonda a photovoltaic pang'onopang'ono kuti athetse kudalira ndalama zopezera ndalama ndikupeza mwayi wopezeka pa intaneti mwachangu. Zofunikira za 1500V zama module a photovoltaic a dzuwa, ma inverters, zingwe, mabokosi ophatikizira, ndi kukhathamiritsa kwa dongosolo ”
Zipangizo zofunikira za dongosolo la 1500V zikuwonetsedwa pamwambapa. Zofunikira za 1500V pachida chilichonse zasinthiranso motere:
Chigawo cha 1500V
Kapangidwe kazinthu zasinthidwa, zomwe zimafuna kutalika kwa zigawo zazing'ono;
• Zosintha zamagulu, zowonjezera zakuthupi ndi zofunikira pakuyesera kumbuyo;
• Zowonjezera zofunikira pakuyesa kutchinjiriza kwa zinthu, mphamvu yamagetsi, kutayikira kwamadzi, ndi kugunda;
• Mtengo wamagawo amakhala mosabisa ndipo magwiridwe antchito amasintha;
• Pakadali pano pali miyezo ya IEC yazinthu zamagetsi zama 1500Vdc. Monga IEC 61215 / IEC 61730;
• Zigawo za 1500Vdc za opanga opanga adadutsa ziphaso zoyeserera ndi mayeso a magwiridwe antchito a PID.
Chingwe cha 1500V DC
• Pali kusiyanasiyana kwa kutchinjiriza, makulidwe amchimake, ellipticity, kutchinjiriza kutchinjiriza, kutentha kwa matenthedwe, kutsitsi mchere, komanso kuyesa kuyesa utsi, komanso mayeso oyaka mtengo.
Bokosi lophatikiza la 1500V
• Zofunikira pakuyesa kuchotseredwa kwamagetsi ndi mtunda wolowera, mphamvu yamagetsi yamagetsi ndi kukakamira kupirira mphamvu yamagetsi ndi kutchinjiriza;
• Pali kusiyana kwa omanga mphezi, ma breakers amagetsi, mafyuzi, mawaya, zida zamagetsi, ma diode odana ndi kusintha kwake, ndi zolumikizira;
• Miyezo yamabokosi ophatikizika ndi zida zazikulu zili m'malo mwake.
Inverter ya 1500V
• Zomanga mphezi, ma breakers amagetsi, mafyuzi, ndi magetsi akusintha ndizosiyana;
• Kutchinjiriza, kutseketsa magetsi, ndi kutaya magazi chifukwa chokwera kwamagetsi;
• Mphamvu yamagetsi ya 1500V yakhazikitsidwa ndi miyezo yoyenera ya IEC.
Dongosolo la 1500V
Pogwiritsa ntchito zingwe zamagetsi za 1500V, zigawo za chingwe chilichonse cha 1000V kale zidakhala 18-22, ndipo tsopano dongosolo la 1500V liziwonjezera kwambiri kuchuluka kwa zigawo mpaka 32-34, ndikupanga zingwe zingapo kukhala zochepa zenizeni.
Makina apano opanga magetsi a photovoltaic, DC-mbali yamagetsi 450-1000V, AC-mbali yamagetsi 270-360V; Dongosolo la 1500V, kuchuluka kwa zingwe zamagetsi zomwe zidakwera zidakwera ndi 50%, DC-mbali yamagetsi 900-1500V, AC-mbali 400-1000V, sikuti kokha mbali yakumanzere ya DC imachepa Kutaya kwa mzere kumbali ya AC kwatsika kwambiri. Zofunikira za 1500V zamagawo, zotembenuza, zingwe, mabokosi ophatikizika, ndi kukhathamiritsa kwamachitidwe ”
Potengera ma inverters, 1MW ma centralver inverters adagwiritsidwapo ntchito m'mbuyomu, ndipo tsopano atha kukulitsidwa kukhala ma inverters a 2.5MW atagwiritsa ntchito dongosolo la 1500V; ndi voteji oveteredwa a AC mbali awonjezeka. Otembenuza mphamvu yomweyo ndi mbali ya AC Zomwe zatulutsidwa pakadali pano zimathandizira kuchepetsa mtengo wa osinthira.
Kupyolera pakuwerengera kwathunthu, pambuyo pa kusintha kwaukadaulo kwa dongosolo la 1500V, mtengo wake wonse ungathe kuchepetsedwa ndi pafupifupi masenti awiri, ndipo magwiridwe antchito amatha kusinthidwa ndi 2%. Chifukwa chake kugwiritsa ntchito dongosolo la 2V kumathandiza kwambiri kuchepetsa mtengo wamagetsi.
Pogwiritsa ntchito dongosolo la 1500V, kuchuluka kwa zinthu zomwe zikuchulukirachulukira kumawonjezeka, kulumikizana kofananira kumachepa, kuchuluka kwa zingwe kumachepetsa, komanso kuchuluka kwa zophatikizira ndi zotembenukira kumachepa. Mphamvu yamagetsi yawonjezeka, kutayika kumachepa, ndipo magwiridwe antchito amafunikira. Kuchepetsa ntchito yomanga ndi kukonza kumathandizanso kuchepetsa kukonzanso ndi kukonza. Izi zitha kuchepetsa mtengo wamagetsi wamagetsi a LCOE.
Chikhalidwe chachikulu! Dongosolo la photovoltaic la 1500V limathandizira kupititsa patsogolo nthawi ya parity
Mu 2019, ndikusintha kwa mfundo za photovoltaic, makampaniwa akufuna kuchepetsa mtengo wamagetsi, ndipo ndichizolowezi chofikira pa intaneti yotsika mtengo. Chifukwa chake, luso laukadaulo ndiyomwe ikuyenda, kuchepetsa mtengo wamagetsi ndikuchepetsa kudalira ndalama zothandizidwa tsopano kwakhala chitsogozo chatsopano chachitukuko cha makampani opanga photovoltaic. Nthawi yomweyo, China, monga kampani yotsogola kwambiri padziko lonse lapansi yamafotokoltaic, yathandiza mayiko ambiri kukwaniritsa mgwirizano pa intaneti, komabe ikadali patali kwambiri ndi mgwirizano pa intaneti pazifukwa zosiyanasiyana.
Chifukwa chachikulu chomwe msika wakunja kwa Photovoltaic ukhoza kukwaniritsa mgwirizano ndikuti kuwonjezera pa zabwino zaku China pankhani zandalama, malo, mwayi, kuyatsa, mitengo yamagetsi, ndi zina zambiri, chofunikira kwambiri ndi zomwe taphunzira ndikuti ali China ndizambiri kupita patsogolo. Mwachitsanzo, dongosolo la photovoltaic lokhala ndi voliyumu ya 1500V. Pakadali pano, zinthu zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi pakadali pano, zinthu zogwirizana zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi za 1500 zishingiye kuri iki gihe, ibintu bikomeye kuri 1500V byashyize hanze uburyo bwo gukora ni byo byatangiye gukora imibonano mpuzabitsina. Chifukwa chake, ma photovoltaics apakhomo akuyeneranso kuyang'ana pazinthu zatsopano zadongosolo, kufulumizitsa kugwiritsa ntchito XNUMXV ndi matekinoloje ena apamwamba, kuzindikira kuchepetsedwa kwa mtengo, magwiridwe antchito, ndikukonzanso magudumu amagetsi, ndikulimbikitsa mwamphamvu makampani opanga photovoltaic kuti asunthire nthawi yofananira.
Mafunde a 1500V asesa dziko lonse lapansi
Malinga ndi lipoti la IHS, kugwiritsa ntchito koyamba kwa njira ya 1500V kudayamba mchaka cha 2012. Pofika chaka cha 2014, FirstSolar idayikapo ndalama m'malo opangira magetsi a 1500V oyamba. Malinga ndi kuwerengera kwa FirstSolar: 1500V station yamagetsi ya photovoltaic imachepetsa kuchuluka kwa ma circuits ofanana powonjezera kuchuluka kwama module angapo a photovoltaic; amachepetsa chiwerengero cha mabokosi olumikizirana ndi zingwe; nthawi yomweyo, pamene magetsi awonjezeka, kutayika kwa chingwe kumachepetsanso, ndipo mphamvu zamagetsi zimapangidwira bwino.
Mu 2015, wopanga zida zaku China zotsogola Dzuwa Mphamvu adatsogolera pakulimbikitsa njira zothetsera kutengera kapangidwe ka 1500V kogulitsa pamakampani, koma chifukwa zida zina zothandizira sizinapangitse mafakitale ku China, ndipo makampani azachuma sazindikira kwenikweni izi, M'malo moika patsogolo kukulitsa kwamayiko akunja atakwezedwa kwambiri kunyumba, idayamba "kugonjetsa" dziko ndikubwerera kumsika waku China.
Malinga ndi msika wapadziko lonse lapansi, dongosolo la 1500V lakhala chinthu chofunikira kuti mapulojekiti akuluakulu ojambula zithunzi achepetse ndalama ndikuwonjezera magwiridwe antchito. M'mayiko omwe mitengo yamagetsi yotsika monga India ndi Latin America, malo opangira magetsi akuluakulu onse pafupifupi onse amatengera njira zotsatsira 1500V; mayiko omwe ali ndi misika yamagetsi yotukuka ku Europe ndi United States asintha magetsi a DC kuchokera pama 1000V photovoltaic system kupita ku 1500V; misika yomwe ikubwera monga Vietnam ndi Middle East yalowa mwachindunji machitidwe a 1500V. Tiyenera kudziwa kuti projekiti ya photovoltaic ya volt 1500-volt imagwiritsidwa ntchito padziko lonse lapansi ndipo yakhala ikulemba mbiri padziko lonse lapansi ndi mitengo yamagetsi yotsika kwambiri.
Ku United States, zida zokwanira 1500Vdc mu 2016 zidakhala 30.5%. Pofika 2017, idakwera kawiri mpaka 64.4%. Zikuyembekezeka kuti nambala iyi ifika ku 84.20% mu 2019. Malinga ndi kampani yakomweko ya EPC: "Chaka chilichonse chatsopano chamagetsi 7GW amagwiritsa 1500. Mwachitsanzo, malo oyambira magetsi akuluakulu ku Wyoming, omwe amangolumikizidwa ndi gululi, amagwiritsa ntchito mphamvu ya dzuwa ya 1500V yokhayokha.
Malinga ndi kuyerekezera, poyerekeza ndi dongosolo la 1000V, kuchepa kwamitengo ndi kuwonjezeka kwa 1500V kumawonekera makamaka mu:
1) Chiwerengero cha zinthu zomwe zidalumikizidwa mndandanda chawonjezeka kuchoka pamabokosi 24 / zingwe mpaka ma 34 block / chingwe, ndikuchepetsa zingwe. Momwemonso, kugwiritsa ntchito zingwe za photovoltaic kwatsika ndi 48%, ndipo mtengo wazida monga mabokosi ophatikizira nawonso wachepetsedwa pafupifupi 1/3, ndipo mtengo udachepetsedwa pafupifupi 0.05 yuan / Wp;
2) Kuwonjezeka kwa kuchuluka kwa zigawo zikuluzikulu kumachepetsa mtengo wothandizira, maziko a mulu, zomangamanga, ndikuyika pafupifupi 0.05 yuan / Wp;
3) Mphamvu yolumikizidwa ndi gridi yamagetsi ya 1500V yawonjezeka kuchokera pa 540V mpaka 800V, malo olumikizidwa ndi grid amachepetsedwa, ndipo zotayika zamtundu wa AC ndi DC zitha kuchepetsedwa ndi 1 ~ 2%.
4) Malinga ndi nkhani yokhwima pamsika wakunja, kuthekera koyenera kwa gawo limodzi kumatha kupangidwa kuti kukhale 6.25MW mumachitidwe a 1500V, ngakhale mpaka 12.5MW m'malo ena. Powonjezera kuthekera kwa gawo limodzi, mtengo wazida za AC monga ma transformer zitha kuchepetsedwa.
Chifukwa chake, poyerekeza ndi machitidwe achikhalidwe a 1000V, dongosolo la 1500V lingachepetse mtengo ndi 0.05 ~ 0.1 yuan / Wp, ndipo mphamvu zenizeni zimatha kukwera ndi 1 ~ 2%.
Kuchulukitsa ndi "kuthekera" kma 1500Vdc msika wanyumba
Poyerekeza ndi msika wapadziko lonse lapansi, mzaka zoyambilira zamakampani opanga zithunzi zaku China, chifukwa chazovuta zazogulitsa zamagetsi, makina a 1500V adayamba mochedwa ndipo chitukuko chake sichinachedwe. Makampani ochepa okha omwe akutsogolera monga Sunshine Power ndiomwe amaliza R & D ndi chiphaso. Koma pakukwera kwa makina a 1500V padziko lonse lapansi, msika wanyumba wawugwiritsa ntchito, ndipo wakwaniritsa zotsatira zabwino pakukula ndi kupanga machitidwe ndi ntchito za 1500V:
- Mu Julayi 2015, woyamba inverter wa pakati pa 1500V wopangidwa ndikupangidwa ndi Sunshine Power ku China adakwanitsa kumaliza mayeso olumikiza gridi ndikutsegulira chiyambi cha ukadaulo wa 1500V mumsika wapanyumba.
- Mu Januwale 2016, ntchito yoyamba yowonetsera mphamvu ya photovoltaic ya 1500V idalumikizidwa pa gridi yopangira magetsi.
- Mu Juni 2016, mu projekiti yoyamba ya mtsogoleri wanyumba ya Datong, ma inverters apakati a 1500V adayikidwa m'magulu.
- Mu Ogasiti 2016, Sunshine Power idatsogolera poyambitsa zingwe zoyambirira za 1500V zapadziko lonse lapansi, ndikupititsanso mpikisano wapadziko lonse lapansi wama inverters aku photovoltaic.
M'chaka chomwecho, ntchito yoyamba yaku China yaku 1500V yopanga ma photovoltaic idalumikizidwa ndi gridi yopangira magetsi ku Golmud, Qinghai, ndikuwonetsa kuti pulogalamu ya 1500Vdc ya photovoltaic yayamba kulowa muntchito yothandiza. Mphamvu yokwanira yamagetsi ndi 30MW. Sunshine Power imapereka mayankho athunthu pantchitoyi, kuchepetsa mtengo wogwiritsira ntchito chingwe ndi 20%, mtengo wa 0.1 yuan / Wp, ndikuchepetsa kwambiri kuwonongeka kwa AC ndi DC komanso chosinthira champhamvu zamagetsi.
1500V yakhala yodziwika kwambiri pamsika wapadziko lonse
Dongosolo la 1500V, lomwe limachepetsa mtengo komanso limagwira bwino ntchito, pang'onopang'ono lakhala chisankho choyamba pamagetsi akuluakulu apansi. Ponena za chitukuko chamtsogolo cha machitidwe a 1500V, IHS ikulosera kuti gawo la ma inverters a 1500V apitilizabe kukula mpaka 74% mu 2019 ndipo lidzafika mpaka 84% mu 2020, ndikukhala gawo lalikulu lazamalonda.
Kuchokera pakuwona kwa 1500V kuyika mphamvu, inali 2GW yokha mu 2016 ndipo idapitilira 30GW mu 2018. Yakwanitsa kukula kopitilira 14 m'zaka ziwiri zokha, ndipo ikuyembekezeka kupitilizabe kukula kwothamanga kwambiri. Zikuyembekezeka kuti kutumizidwa kochulukirapo mu 2019 ndi 2020 kudzakhala kuchuluka kudzapitilira 100GW. Kwa mabizinesi aku China, Sunshine Power yakhazikitsa zoposa 5GW za ma inverters a 1500V padziko lonse lapansi ndipo ikukonzekera kuyambitsa zingwe zapamwamba kwambiri za 1500V ndi ma inverters apakati mu 2019 kuti akwaniritse msika womwe ukukula mwachangu womwe udayikidwa.
Kuchulukitsa mphamvu ya DC kupita ku 1500V ndikusintha kofunikira pakuchepetsa ndalama ndikuwonjezera magwiridwe antchito, ndipo tsopano yakhala yankho lalikulu pachitukuko cha photovoltaic yapadziko lonse. Ndi nthawi yakuchepa kwathandizidwe ndi mgwirizano ku China, makina a 1500V adzagwiritsidwanso ntchito ku China, zomwe zikufulumizitsa kubwera kwa nyengo yofananira yaku China
Kusanthula kwachuma kwa 1500V dongosolo la photovoltaic
Kuchokera ku 2018, ziribe kanthu kunja kapena zapakhomo, kuchuluka kwa mawonekedwe a 1500V kukukulirakulira. Malinga ndi ziwerengero za IHS, kuchuluka kwa ntchito kwa 1500V yamagetsi akuluakulu akunja kumayiko akunja kudapitilira 50% mu 2018; malinga ndi ziwerengero zoyambirira, pagulu lachitatu la othamanga kutsogolo mu 2018, kuchuluka kwa mapulogalamu a 1500V anali pakati pa 15% ndi 20%.
Kodi dongosolo la 1500V lingachepetse mtengo wamagetsi pantchitoyo? Papepalali limafufuza momwe chuma cha ma voliyumu awiriwa chimayendera pogwiritsa ntchito zowerengera zamaphunziro komanso momwe zinthu zilili.
I. Basic design scheme
Pofuna kusanthula kuchuluka kwa mtengo wa 1500Vdc pulogalamu ya photovoltaic, njira yodziwikiratu yomwe imagwiritsidwa ntchito kuyerekezera mtengo wa projekitiyo ndi mtengo wachikhalidwe wa 1000V.
1. kuwerengera maziko
1) Malo opangira magetsi, malo athyathyathya, kuyika mphamvu sikucheperachepera ndi dera lamtunda;
2) Kutentha kwambiri ndi kutentha kotsika kwambiri kwa malowa kudzaganiziridwa malinga ndi 40 ℃ ndi -20 ℃.
3) Magawo ofunikira azosankhidwa ndi ma inverters akuwonetsedwa patebulo pansipa.
2. Basic kapangidwe chiwembu
1) 1000V mndandanda wopanga chiwembu
22 310W magawo awiri a zithunzi za photovoltaic amapanga nthambi 6.82kW, nthambi ziwiri zimapanga gulu lalikulu, nthambi 2 zokwana 240, ndikulowa mu ma inverters 120 20kW (maulendo 75 akufalikira kwambiri mbali ya DC, phindu kumbuyo) Kuganizira 1.09%, ndi nthawi zopitilira 15) kuti apange gawo lamagetsi la 1.25MW.
Chigawocho chimayikidwa mozungulira molingana ndi 4 * 11, ndi bulaketi yakutsogolo ndi yakumbuyo yakumbuyo.
2) 1500V mndandanda wopanga chiwembu
Ma 34 310W okhala ndi ma photovoltaic awiri amapanga nthambi ya 10.54kW, nthambi ziwiri zimapanga matrix apakati, nthambi 2 zimakhala ndi magulu 324, ndipo ma inverters 162 18kW amaikidwa (maulendo 175 omwe amagawidwa kwambiri ku mbali ya DC, phindu pa kumbuyo Poganizira 1.08%, ndi nthawi 15 zopitilira muyeso) kuti apange gawo lamagetsi la 1.25MW.
Chigawocho chimayikidwa mozungulira molingana ndi 4 * 17, ndi bulaketi yakutsogolo ndi yakumbuyo yakumbuyo.
Chachiwiri, momwe 1500V idakhudzira ndalama zoyambirira
Malinga ndi pulani yomwe ili pamwambapa, kuwunikira poyerekeza kuchuluka kwaukadaulo ndi mtengo wa makina a 1500V ndi machitidwe achikhalidwe a 1000V ndi awa.
Gulu 3: Kupanga ndalama kwa dongosolo la 1000V
Gulu 4: Kupanga ndalama kwa dongosolo la 1500V
Kupyolera mu kusanthula kofananako, zimapezeka kuti poyerekeza ndi machitidwe achikhalidwe a 1000V, dongosolo la 1500V limasunga pafupifupi 0.1 yuan / W pamtengowo.
Chachitatu, mphamvu ya 1500V pakupanga magetsi
Kuwerengetsa maziko:
Pogwiritsa ntchito zinthu zomwezo, sipadzakhala kusiyana pakupanga magetsi chifukwa chosiyana ndi zigawo; poganiza kuti malo athyathyathya, sipadzakhalanso mthunzi chifukwa cha kusintha kwa mtunda;
Kusiyana kwamphamvu yamagetsi kumakhazikitsidwa makamaka pazinthu ziwiri: kutayika molakwika pakati pazigawo ndi zingwe, kutayika kwa mzere wa DC, ndi kutayika kwa mzere wa AC.
1. kutayika molakwika pakati pazigawo ndi zingwe
Chiwerengero cha zigawo zingapo zamtundu umodzi chawonjezeka kuchokera pa 22 kufika pa 34. Chifukwa cha kupatuka kwa mphamvu kwa ± 3W pakati pazinthu zosiyanasiyana, kutaya mphamvu pakati pa zida zamagetsi za 1500V kudzawonjezeka, koma sikungathe kuwerengedwa kambiri.
Chiwerengero cha njira zopezera chosinthira chimodzi chawonjezeka kuchokera pa 12 mpaka 18, koma kuchuluka kwa njira zowunikira za MPPT zawonjezeka kuchokera pa 6 mpaka 9 kuti zitsimikizire kuti nthambi ziwiri zikugwirizana ndi 2 MPPT. Kutaya kwa MPPT sikuwonjezeka.
2. Kutaya kwa DC ndi AC
Kuwerengetsa chilinganizo cha kutayika kwa mzere
Kutayika kwa Q = I2R = (P / U) 2R = ρ (P / U) 2 (L / S)
1) Kuwerengera kwa DC kutayika kwa mzere
Tebulo: Kutaya kwa mzere kwa DC pamtundu umodzi
Kudzera pakuwerengetsa pamwambapa, zimapezeka kuti DC kutayika kwa makina a 1500V ndiwokwana 0.765 kuposa kachitidwe ka 1000V, kofanana ndikuchepetsa kutayika kwa mzere wa DC ndi 23.5%.
2) Kuwerengera kwa kutaya kwa AC
Tebulo: Kuchuluka kwa mzere wa AC wa inverter imodzi
Malinga ndi kuwerengera kwapamwambaku, zikupezeka kuti DC mzere wotayika wa makina a 1500V ndiwokwana 0.263 poyerekeza ndi dongosolo la 1000V, zomwe zikufanana ndi kuchepetsa kutayika kwa mzere wa AC ndi 73.7%.
3) Nkhani zenizeni
Popeza kutayika kosafanana pakati pazinthu sizingathe kuwerengedwa mochulukirapo, ndipo chilengedwe chenicheni chimakhala ndiudindo, mlanduwo udzagwiritsidwa ntchito pofotokozera.
Nkhaniyi imagwiritsa ntchito zenizeni zamagetsi zamagulu amtsogolo othamanga. Nthawi yosonkhanitsira deta ikuchokera mu Meyi mpaka Juni 2019, miyezi iwiri yonse yazidziwitso.
Tebulo: Kuyerekeza kwa kupanga mphamvu pakati pa makina a 1000V ndi 1500V
Kuchokera pa tebulo pamwambapa, zitha kupezeka kuti pamalo omwewo a projekiti, pogwiritsa ntchito zinthu zomwezo, zopanga zinthu za inverter, ndi njira yokhazikitsira bulaketi, m'mwezi wa Meyi mpaka Juni 2019, maola opangira magetsi a dongosolo la 1500V anali 1.55% kuposa dongosolo la 1000V.
Titha kuwona kuti ngakhale kuchuluka kwa zingwe zamagetsi kumakulitsa kusokonekera pakati pazinthu chifukwa kumatha kuchepetsa kuwonongeka kwa mzere wa DC pafupifupi 23.5% komanso kutayika kwa mzere wa AC pafupifupi 73.7%, dongosolo la 1500V lingakulitse kupanga mphamvu kwa ntchitoyi.
Chachinayi, kusanthula kwathunthu
Kudzera pakuwunika pamwambapa, titha kupeza kuti poyerekeza ndi machitidwe achikhalidwe a 1000V, dongosolo la 1500V,
1) Kodi kupulumutsa za 0.1 n'chokwana / W dongosolo mtengo;
2) Ngakhale kuchuluka kwa zingwe zazingwe zingakulitse kusokonekera pakati pa zinthuzo, koma chifukwa kumatha kuchepetsa kuwonongeka kwa mzere wa DC pafupifupi 23.5% ndi kutayika kwa mzere wa AC pafupifupi 73.7%, dongosolo la 1500V liziwonjezera kupanga mphamvu kwa ntchitoyi.
Chifukwa chake, ntchito ya 1500Vdc mu pulogalamu ya photovoltaic mtengo wamagetsi ukhoza kuchepetsedwa pamlingo winawake.
Malinga ndi a Dong Xiaoqing, Purezidenti wa Hebei Energy Engineering Institute, zopitilira 50% zamapulani opanga mapulani a photovoltaic omalizidwa ndi bungwe anasankha 1500V; zikuyembekezeka kuti gawo ladziko lonse la 1500V lamagetsi apansi mu 2019 lifikira pafupifupi 35%; zidzawonjezekanso mu 2020.
IHS Markit, kampani yodziwika bwino yolangizira padziko lonse lapansi, idanenanso zamtsogolo. Mu lipoti lawo lowunikira pamisika ya 1500V yapadziko lonse lapansi, adanenanso kuti chiwonetsero chazopanga magetsi cha 1500V chikadutsa 100GW mzaka ziwiri zikubwerazi.
Chithunzi: Kuneneratu za kuchuluka kwa 1500V m'malo opangira magetsi padziko lonse lapansi
Mosakayikira, momwe ntchito yochotsera ndalama zothandizira mafakitale ya photovoltaic ikuchulukirachulukira, komanso kufunafuna mtengo wamagetsi, 1500V, ngati yankho laukadaulo lomwe lingachepetse mtengo wamagetsi, idzagwiritsidwa ntchito kwambiri.
