Kupititsa patsogolo Kugwiritsa Ntchito Bwino Pogwiritsa Ntchito BESS ndi Solar Power Coupling

Yankho Lachangu

Kugwirizanitsa malo osungira mphamvu ya batri (BESS) ndi mphamvu ya dzuwa pamalopo ndiye njira yabwino kwambiri yopangira malo amakono ochapira magetsi a EV chifukwa imalimbana ndi kutayika pa sitepe iliyonse ya unyolo wamagetsi. Ma solar panels amasintha kuwala kwa dzuwa kukhala DC pa 20-24% ya module efficiency; maximum power point tracking (MPPT) system imabwezeretsa zomwe mthunzi ndi kusagwirizana kukanawononga; ndipo batri imachotsa kupanga mphamvu kuchokera ku kufunikira kwa chaji kotero kuti palibe kilowatt-hour yomwe imatumizidwa kunja pamitengo yogulitsa kapena kuchepetsedwa. Dongosolo la PV+BESS logwirizana bwino nthawi zambiri limakweza mtengo wa kupanga mphamvu ya dzuwa ndi 30-50% poyerekeza ndi PV yokha, limachepetsa kugula mphamvu ya grid ndi 40-70%, ndipo limalola kuti ntchito ya zero-emission igwire ntchito nthawi ya masana. Bukuli likufotokoza momwe mungakulitsire, kuphatikiza, ndikugwiritsa ntchito mphamvu ya dzuwa ndi malo osungira kuti mugwire bwino ntchito paulendo wobwerera.

Mfundo Zofunika Kwambiri

• Kuphatikiza kwa DC kwa PV ndi BESS kumapewa kutayika kwa kusintha kawiri, zomwe zimapangitsa kuti magwiridwe antchito a dongosolo azitha bwino ndi maperesenti 2-4.
• Batireyi imayamwa mphamvu ya dzuwa kwambiri ndipo nthawi imaisintha kuti ifike pamlingo wochajitsa, zomwe zimathandiza kuti ichepetse mphamvu yamagetsi komanso kuti itumize kunja mtengo wotsika.
• Ma module a MPPT okhala ndi ma voltage ambiri amabwezeretsa 5–10% ya PV yotulutsidwa chifukwa cha mthunzi pang'ono komanso kusalingana kwa paneli.
• Kukula koyenera kwa mphamvu ya dzuwa kupita ku batri kumathandiza kuti malo osungiramo zinthu azikhala nthawi 1-1.5 patsiku, zomwe zimateteza moyo wa nthawi yogwiritsira ntchito komanso ndalama zomwe zimagwiritsidwa ntchito.
• Malo opangira magetsi a BESS omwe amagwiritsa ntchito mphamvu ya dzuwa amatha kugwira ntchito ngati zilumba zopanda mpweya woipa, zomwe zimachotsa majenereta a dizilo m'malo akutali komanso omwe ali ndi gridi yocheperako.

Chifukwa Chake PV + BESS Ndi Kugwirizanitsa Kogwira Mtima Kwambiri

Kupanga mphamvu ya dzuwa ndi magetsi a EV zimasokonekera mwachibadwa. Dzuwa limafika pachimake masana, koma mphamvu ya magetsi imafika pachimake m'mawa komanso kuyambira masana mpaka madzulo. Malo omwe ali ndi magetsi a PV okha ndi omwe angasankhe: kutumiza kunja mphamvu yamagetsi ya masana pamitengo yogulitsa, kapena kuchepetsa kwathunthu. BESS imachotsa chisankhocho—batri imayamwa mphamvu yamagetsi yamagetsi ndikuyitulutsa nthawi yomweyo pamene magetsi akuifuna.

Kupeza bwino kuli ndi zigawo zitatu:

1. Phindu la kugwiritsa ntchito: kilowatt-ola iliyonse ya dzuwa imagwiritsidwa ntchito pamalopo pamtengo wogulitsa kapena wamtengo wapatali m'malo motumizidwa kunja pamtengo wogulira kapena kudula. Izi nthawi zambiri zimakhala ndi phindu lochulukirapo ndi 30–50% pa kWh iliyonse yopangidwa. 2.Kupindula kwa kusintha: mu kapangidwe ka DC-coupled, solar DC imalowa mwachindunji mu DC bus ya batri kapena DC bus ya charger, kupewa AC round trip. Kuchotsa ma inverter awiri osinthika kumabwezeretsa 2-4 peresenti ya magwiridwe antchito a dongosolo. 3.Kufunika kwa gridi kukukula: tsamba lawebusayiti silikutumiza zinthu zambiri kuchokera ku gridi, ndipo zinthu zina zomwe zatumizidwa kunja ndi zosakhwima, zomwe zimachepetsa ndalama zonse zamagetsi ndi zofunidwa.

Kwa wogwiritsa ntchito poyerekeza hub ya PV+BESS ndi malo ochapira mofulumira a gridi yokha, mtengo wofanana wa mphamvu yoperekedwa ndi makina olumikizidwa nthawi zambiri umakhala wotsika ndi 20–35% pazaka khumi.

Kuyenda kwa Mphamvu: Kuchokera pa Panel kupita ku Battery kupita ku Galimoto

Kumvetsetsa kapangidwe ka ma coupling kumamveketsa bwino komwe magwiridwe antchito amapambana kapena kutayika. Pali ma topologies awiri akuluakulu:

Cholumikizira cha AC— Ma inverter a PV amadyetsa basi ya AC; inverter ya batri yosiyana imachaja batri. Yosavuta komanso yofanana, koma mphamvu ya dzuwa imatayika PV-inverter, kenako kutayika kwa batri-inverter: mphamvu yobwerera ndi kubwerera ya pafupifupi 85–88%.

DC cholumikizira— Ma PV arrays amalumikizana ndi basi ya DC ya batri kudzera mu chosinthira cha MPPT; PCS imodzi yapakati imagwira ntchito yosinthira gridi. Mphamvu ya dzuwa imalowa mu batri ndi kusintha kamodzi, ndipo magwiridwe antchito amakula kufika pafupifupi 90–93%. Ma charger akatha kukoka DC mwachindunji kuchokera ku basi yogawana, kusintha kwina kumachotsedwa.

Kapangidwe ka DC-coupled ndi chifukwa chake zinthu zophatikizana za solar-BESS zikupambana kugulitsidwa kwa malonda. Kusiyana kwa magwiridwe antchito kumawonjezeka tsiku lililonse: pa 1 MWh yokolola dzuwa tsiku lililonse, ma 3-5 peresenti ya kutayika kosungidwa ndi 30-50 kWh patsiku—pafupifupi 11-18 MWh pachaka ya mphamvu yobwezerezedwanso.

Siteshoni yamakono ya [200 kWh solar BESS EV charging station-for-zero-emission-sites/] (https://www.midapower.com/news/200kwh-solar-bess-ev-charging-station-for-zero-emission-sites/) ikuwonetsa unyolo wonse: PV array → MPPT module → batire DC bus → DC fast charger → batire yagalimoto. Gawo lililonse limapangidwa kuti lichepetse kutayika, ndipo EMS imayang'anira kayendedwe ka madzi kuti dzuwa nthawi zonse lipereke katundu poyamba, ndalama zowonjezera za BESS, ndipo zinthu zomwe zimalowa mu grid zimachepetsedwa.

Kukula kwa Ma Dzuwa Ozungulira Motsutsana ndi BESS Capacity

Zolakwika pakukula—PV yayikulu kwambiri kapena malo osungiramo zinthu akuluakulu—zimawononga pang'onopang'ono chuma cha makina ogwirizana. Chiŵerengero cholamulira ndi kuchuluka kwa mphamvu ya dzuwa tsiku lililonse poyerekeza ndi mphamvu ya batri ndi kufunika kwa malo:

Malamulo atatu akuluakulu amathandiza kuti kulumikizana kugwire bwino ntchito:

1. Kukula kwa PV mpaka 40–80% ya mphamvu ya pachaka ya malo, osati 100%. Kuphimba konse kumakakamiza batri kukula kwambiri komanso nthawi yayitali yopanda ntchito; kuphimba pang'ono kumawonjezera mphamvu ya dzuwa pa watt iliyonse yoyikidwa. 2.Kukula kwa BESS kukhala kozungulira kamodzi patsikukuchuluka kwa mphamvu ya dzuwa komwe kumayembekezeredwa. Batire yoyendetsedwa kamodzi patsiku pa kuya kwa 80% ya kutulutsidwa kwake imakwaniritsa zofunikira zake zonse za moyo wa kuzungulira; mabatire ochepa kwambiri amazungulira mopitirira muyeso, ndipo mabatire akuluakulu amawononga moyo wa kalendala popanda kugwiritsidwa ntchito. 3.Gwirizanitsani MPPT input range ndi zenera lenileni la ntchito la array.Module ya MPPT yothamanga kwambiri imapezanso mphamvu pansi pa mthunzi pang'ono, chifunga cha m'mawa, ndi kukalamba kwa panel komwe chipangizo chocheperako chimachotsa.

Kupindula Kogwira Ntchito: MPPT, Kutembenuka, ndi Kutayika Koyimirira

Kuchita bwino kumapezedwa mwatsatanetsatane, ndipo magulu atatu otayika amalamulira machitidwe ogwirizana:

Kutayika kwa MPPT.Kuphimba pang'ono kwa chingwe chimodzi cha panel kumatha kudula mphamvu yonse ya gulu ndi 10-20% popanda kukonza bwino chingwe chilichonse. Ma module amphamvu a MPPT ogwira ntchito bwino—monga ma module a MIDA a 30-60 kW MPPT omwe amagwiritsidwa ntchito mumakina ochapira dzuwa—amatsata mphamvu yayikulu ya chingwe chilichonse payekha, ndikubwezeretsa 5-10% ya phindu la pachaka m'malo enieni okhala ndi mthunzi kapena kusalingana kwa gawo.

Kutembenuka ndi kutayika kwa nthawi yoyimirira.Inverter iliyonse imagwira ntchito moyipa kwambiri ikatsika. Tsamba la BESS lomwe limasunga PCS yake ikugwira ntchito pa 2–5% ya katundu usiku wonse limawononga ma kilowatt-hours usana ndi usiku. Makina amakono amagwiritsa ntchito njira zoyimirira zochepa kwambiri (

Kusamalira kutentha.Kuziziritsa kwa batri kumagwiritsa ntchito mphamvu; mabatire oziziritsidwa ndi madzi amasunga kutentha kwabwino kwa maselo ndi gawo laling'ono la mphamvu ya fan ya mapangidwe oziziritsidwa ndi mpweya. Pamalo otentha, kuziziritsa kwa madzi kumatha kusunga 3-5% ya mphamvu ya dongosolo la batri poyerekeza ndi kuziziritsa kwa mpweya wokakamizidwa pamene akuwonjezera moyo wa maselo.

Poganizira zonsezi, njira zogwirira ntchito zimakweza dongosolo logwirizana kuchokera ku "nameplate 90% efficiency" kupita ku "operational 93–96% efficiency" - kusiyana pakati pa [2 MWh solar-powered solar charger station BESS] (https://www.midapower.com/2mwh-960kw-bess-charging-station-megawatt-ev-charger-solar-battery-storage-system-product/) yomwe imapereka mphamvu zake zovomerezeka ndipo imodzi imataya mphamvu pang'onopang'ono masabata awiri aliwonse.

Malo Opanda Mpweya Wotulutsa Magazi ndi Kusamutsa Dizilo

Phindu la mgwirizanowu ndi kudziyimira pawokha pa ntchito. M'malo akutali, okhala ndi gridi yolimba, kapena omwe amathandizidwa ndi masoka, solar + BESS hub imalowa m'malo mwa jenereta ya dizilo—yankho lodziwika bwino la "palibe gridi pano."

Kuyerekezako n’kovuta kwambiri. Jenereta ya dizilo pamalo operekera chithandizo pamsewu waukulu imayatsa malita 3-4 pa ola limodzi ikangodzaza pang'ono, imatulutsa 2.5-3 kg ya CO2 pa lita, ndipo imafuna mafuta oyendera. Chipinda cha solar + BESS chokhala ndi 150-400 kWp ya PV ndi 500 kWh-2 MWh yosungiramo chimapereka ntchito yofanana yochaja popanda kutulutsa mpweya pamalopo, kugwira ntchito chete, komanso mtengo wochepa pafupifupi zero ikangoyikidwa.

Malo ogwirira ntchito amapereka zotsatira zitatu zoyezeka:

• Kusunga mafuta ndi zinthu zoyendera kuyambira $15,000 mpaka $60,000 pachakamotsutsana ndi ntchito yofanana ya dizilo;
• Kuchepetsa mpweya wa carbon wa matani 40–120 a CO2 pachakapa malo aliwonse, zomwe zimayenereranso mapulogalamu opereka ngongole ya kaboni m'misika ina;
• Nthawi yogwira ntchito yoposa 95%pa nthawi yochajira yomwe imachitika masana, ndi gridi kapena jenereta yosungiramo zinthu zomwe zimaphimba mapiri amdima a madzulo.

Kapangidwe ka [500 kWh BESS charging siteshoni] (https://www.midapower.com/news/500kwh-containerized-bess-charging-station-for-grid-constrained-areas/)—batri yokhala ndi ma container yokhala ndi solar input yolumikizidwa—ndiye maziko omangira malo otere, chifukwa imatumizidwa ngati unit imodzi ndipo imayendetsedwa popanda ntchito za boma.

Mapeto

Dzuwa ndi malo osungira sizinthu zowonjezera pa malo ochapira; ndi makina ogwirizana omwe magwiridwe antchito ake onse amaposa kuchuluka kwa ziwalo zake. Kulumikizana kwa DC kumachotsa kutayika kwa kusintha, MPPT imabwezeretsa kutayika kwa mthunzi, ndipo batri imasandutsa mphamvu ya dzuwa ya masana kukhala ndalama zochapira madzulo. Kukula koyenera—PV pa 40–80% ya mphamvu ya malo, BESS imayendetsa kamodzi patsiku, ma module a MPPT osiyanasiyana—hub ya BESS yoyendetsedwa ndi dzuwa imachepetsa kugula kwa gridi ndi 40–70%, imachotsa dizilo m'malo akutali, ndipo imapereka kuchapira kosatulutsa mpweya komwe kuli kofunikira kwambiri. Kwa ogwiritsa ntchito, funso loti mphamvu yamagetsi siilinso "kodi dzuwa limagwira ntchito ndi malo osungira?" koma "ndi kapangidwe kake kogwirizanitsa komwe kamagwira ntchito kwambiri pa kilowatt-ola lililonse?"

FAQ

1. Kodi kusiyana pakati pa AC ndi DC coupling ya solar + BESS ndi kotani?Mu cholumikizira cha AC, PV ndi batri iliyonse imakhala ndi inverter yakeyake pa basi ya AC, zomwe zimataya mapointi 2-4 a mphamvu yogwira ntchito yobwerera ndi kubwerera. Mu cholumikizira cha DC, mphamvu ya dzuwa imapatsa basi ya DC ya batri kudzera mu chosinthira cha MPPT, kupewa kusintha kawiri ndikuwonjezera mphamvu mpaka 90-93%.

2. Kodi ndiyenera kulumikiza mphamvu ya dzuwa yochuluka bwanji ndi malo ochajira a BESS?Kukula kwa PV kufika pa 40–80% ya mphamvu zomwe malowa amagwiritsa ntchito pachaka. Kuphimba kwathunthu kumakakamiza batire kukhala yokwera mtengo kwambiri; kuphimba pang'ono kumawonjezera mphamvu ya dzuwa pa watt iliyonse yoyikidwa pomwe batire limayenda bwino.

3. Kodi BESS yolumikizidwa iyenera kulunjika ku ma cycle angati patsiku?Pafupifupi kuzungulira kamodzi kokha patsiku pa kuya kwa 80% kwa kutulutsa. Kuthamanga kumeneko kumakwaniritsa moyo wa batri wovomerezeka ndipo kumasunga chuma chili bwino; kuyendetsa mopitirira muyeso kumawononga paketi, ndipo kuyendetsa mopitirira muyeso kumawononga ndalama.

4. Kodi malo ogwiritsira ntchito mphamvu ya dzuwa a BESS angagwire ntchito popanda gridi?Inde, ndi magetsi okwanira a PV, malo osungira, komanso kufunikira kwa masana. Malo osakanikirana amakhala ndi gridi yolumikizira kuti azitha kupirira komanso mapiri amdima; zilumba zoyera nthawi zambiri zimawonjezera jenereta yowonjezera pazochitika zoopsa.

5. Kodi MPPT ndi yofunika kwambiri pa dongosolo lolumikizana?Pa ma arrays okhala ndi mthunzi kapena osafanana, MPPT yodziyimira payokha pa chingwe chilichonse imapezanso 5–10% ya zokolola za PV pachaka—mphamvu zomwe zikanatayika. Pa ma arrays oyera, osaphatikizidwa, phindu limachepa, ndichifukwa chake kufufuza malo ndikofunikira.

6. Kodi ndiyenera kuyembekezera kuchita bwino kotani kuchokera ku siteshoni yamakono yochapira ya solar-BESS?Kugwira ntchito bwino kwa 93–96% ndi kubwerera n’kuthekera pogwiritsa ntchito DC coupling, liquid-cooled battery packs, ndi low-standby PCS—poyerekeza ndi 85–88% ya basic AC-coupled stacks.

7. Kodi kulumikizana kwa dzuwa kumachepetsa ndalama zomwe anthu amafunikira pamalopo?Inde. Kupanga mphamvu ya dzuwa kumachepetsa kutumizidwa kwa magetsi kuchokera kunja panthawi ya mitengo yokwera kwambiri, ndipo BESS imachepetsera kukwera kwa magetsi kwa mphindi 15—kuukira mphamvu ndi kufunika kwa magetsi nthawi imodzi.