Battery yosungirako mphamvu zongowonjezwdwa imagwira magetsi opangidwa kuchokera ku magwero monga solar ndi mphepo, kuwasunga m'makina a batire omwe amathanso kuchangidwa, ndikuwatulutsa pakafunika. Izi zimachitika kudzera munjira zama electrochemical zomwe zimasinthira mphamvu yamagetsi kukhala mphamvu yamankhwala panthawi yolipiritsa, kenako ndikubweza njirayo pakutulutsa. Ukadaulo umathetsa vuto lalikulu la mphamvu zongowonjezwdwa: kufananiza kutulutsa mphamvu kwapakatikati ndi kuchuluka kwamagetsi komwe kumafunikira nthawi zonse.
The Core Mechanism: Kulipiritsa ndi Kutulutsa
Kusungirako mabatire kwa mphamvu zongowonjezwdwa kumagwira ntchito mozungulira kusintha kwamphamvu. Pamene mapanelo adzuwa kapena ma turbine amphepo amatulutsa magetsi ochulukirapo kuposa momwe amafunikira, zochulukirapozo zimalowa mu batire. Mkati mwa batire, mphamvu yamagetsi iyi imasandulika kukhala mphamvu yamankhwala, yomwe imasunga mpaka itafunika.
Njira yolipirira imaphatikizapo ma ion a lithiamu akuyenda kuchokera ku cathode (positive electrode) kupita ku anode (negative electrode) kudzera mu njira ya electrolyte. Kakhungu kolekanitsa kumakhala pakati pa maelekitirodi, kuteteza mabwalo afupiafupi pomwe amalola kuyenda kwa ion. Panthawi imeneyi, makina oyendetsa mabatire amawunika ma voltage, apano, ndi kutentha kuti apewe kuchulukana.
Mphamvu yamagetsi ikapitilira kupanga zongowonjezeranso-monga usiku pomwe ma sola sakugwira ntchito{1}}njirayo imabwerera m'mbuyo. Ma ion a lithiamu amabwerera kuchokera ku anode kupita ku cathode, kutulutsa ma elekitironi omwe amapanga magetsi. Izi zimadutsa pa inverter, yomwe imasintha batire yomwe imachokera (DC) kukhala alternating current (AC) yomwe gridi yamagetsi imagwiritsa ntchito.
Makina amakono a batri amagwiritsa ntchito mapulogalamu anzeru ndi ma aligorivimu kuti agwirizane nthawi yosunga mphamvu komanso nthawi yoti azitulutsa ku gridi. Dongosololi limawunika mosalekeza momwe ma gridi alili, mitengo yamagetsi, komanso kulosera zanyengo kuti akwaniritse zosankha zosungira.
Kuchuluka kwa mphamvu-paulendo wobwerera{1}}kuchuluka kwa mphamvu zomwe mumapeza poyerekeza ndi zomwe mumayikamo{2}}nthawi zambiri zimafika 85% pamakina a lithium-ion. Izi zikutanthauza kuti ngati mumasunga makilowati 100-maola, pafupifupi ma kilowati 85-amakhalapo kuti mugwiritse ntchito, ndipo 15% imatayika ngati kutentha panthawi yosinthira.
Battery Technologies Powering Storage Systems
Mabatire a Lithium-ion ndiwo ali ndi mphamvu zosunga batire pamsika wamagetsi ongowonjezeranso, zomwe zimapitilira 80% yamagetsi-padziko lonse lapansi. Mabatirewa amapambana chifukwa cha kuchuluka kwa mphamvu zawo, kutalika kwa moyo, komanso kutsika kwamitengo, zomwe zatsika ndi 82% kuchoka pa $780/kWh mu 2013 mpaka $139/kWh mu 2023.
Ma chemistry awiri a lithiamu{0}}ion amapikisana pamsika wosungira zinthu. Mabatire a Lithium iron phosphate (LFP) akhala njira yabwino yosungiramo malo kuyambira 2022, ndikupereka chitetezo chokwanira komanso moyo wautali. Mabatire a nickel manganese cobalt (NMC) amapereka mphamvu zochulukirapo koma pamtengo wokulirapo komanso amafunikira kasamalidwe kolimba kwambiri.
Selo la batri palokha lili ndi anode yomwe imapangidwa kuchokera ku graphite, cathode yopangidwa kuchokera ku lithiamu zitsulo oxides, ndi electrolyte yamadzimadzi yomwe imathandizira mayendedwe a ion. Ma ma ion a lithiamu akamayenda pakati pa maelekitirodi, amalumikizana-kulowa mumpangidwe wa ma elekitirodi osawasinthiratu-zomwe zimapangitsa kuti ma elekitirodi azichulukirachulukira{3}}kutulutsa.
Kupitilira lithiamu-ion, umisiri wina umagwiranso ntchito zina. Mabatire oyenda amagwiritsa ntchito ma electrolyte amadzimadzi omwe amasungidwa m'matangi akunja, kulola mphamvu yamagetsi ndi kutulutsa mphamvu kuti ziwonjezeke paokha. Makinawa amapambana pamapulogalamu omwe amafunikira maola 10 kapena kupitilira apo. Kusungirako mphamvu kwa mpweya, makina opangira magetsi opopera madzi, ndi mabatire amphamvu omwe akutuluka kumene- ali ndi ubwino wosiyana ndi mmene amagwiritsira ntchito, ngakhale kuti panopa akuimira magawo ang'onoang'ono amsika.
Physical Components ndi System Architecture
Dongosolo lathunthu losungirako batire la mphamvu zongowonjezedwanso limapitilira kuposa ma cell a batri omwe. Dongosololi lili ndi zigawo zingapo zophatikizika zomwe zimagwira ntchito limodzi.
Ma module a mabatire amawunjika ma cell amodzi m'magulu akuluakulu, osungidwa m'malo otetezedwa ndi nyengo opangidwa kuti aziyika panja. Zotsekerazi zitha kukhala ngati makontena otumizira, cholinga-zomangidwa, kapena makabati akunja-ovoteledwa, oyikidwa bwino m'mphepete mwa mizere yotumizira komwe amatha kusunga ndi kutumiza mphamvu moyenera.
The Battery Management System (BMS) amagwira ntchito ngati malo anzeru oyika. Imayang'anira ma voltage, mphamvu, ndi kutentha m'maselo onse, kuteteza kuti isachulukitse, -kuthamangitsidwa, ndi kutentha kwambiri kwinaku ikuwongolera magwiridwe antchito ndi moyo wautali. BMS imachitanso kulinganiza kwa ma cell, kuwonetsetsa kuti ma cell onse omwe ali mkati mwa paketi amakhalabe ndi milingo yofananira kuti apewe kuwonongeka msanga.
Makina osinthira mphamvu (PCS) amathandizira kusintha pakati pa mphamvu ya gridi ya AC ndi kusungirako batire la DC. Pakulipira, PCS imatembenuza magetsi a AC omwe akubwera kukhala DC kuti asungidwe. Pakutulutsa, imatembenuza kutulutsa kwa DC kwa batri kubwerera ku AC pamagetsi oyenera komanso ma frequency olumikizirana ndi grid. Kugwira ntchito kwapawiri kumeneku kumathandizira mphamvu kuyenda mosasunthika pakati pa makina osungira ndi gridi.
Makina owongolera matenthedwe amasunga mabatire mkati mwa kutentha koyenera, nthawi zambiri madigiri 30-35 kuti agwire bwino ntchito. Izi zingaphatikizepo makina ozizira amadzimadzi, zoziziritsira mpweya, kapena zinthu zotenthetsera nyengo yozizira. Kuwongolera kutentha kumakhala kofunikira chifukwa chemistry ya batri imakhala yochepa kwambiri pakatentha kwambiri ndipo kulipiritsa mabatire ozizira kumatha kuwononga mpaka kalekale.
Mapulogalamu oyang'anira mphamvu amagwirizanitsa dongosolo lonse, kupanga -zisankho zenizeni za nthawi yolipirira ndi kutulutsa potengera ma siginecha amtundu wa gridi, mitengo yamagetsi, zolosera zam'tsogolo zongowonjezwwdzw, ndi zomwe zikuyenera kuchitika pamakontrakitala. Pulogalamuyi imathandizira kusungidwa kwa batri kuti ikhale ndi mphamvu zongowonjezwdwanso kuti ipereke ma gridi angapo nthawi imodzi.
Kuphatikiza kwa Gridi ndi Ntchito
Makina osungira mabatire amalumikizana ndi ma gridi amagetsi pamalo osiyanasiyana, kuyambira paziwongola dzanja-zoyika masikelo pamanetiweki otumizira kupita kumakina ang'onoang'ono pamalo ogawa kapena kuseri kwa kasitomala mita. Njira yolumikizira imadalira ngati kusungirako kumagwira ntchito ngati malo odziyimira pawokha kapena awiriawiri okhala ndi m'badwo wongowonjezwdwa.
Makina a batire a standalone amalipiritsa kuchokera pagulu losakanikirana ndi gridi ndikuyankha pamikhalidwe yonse. Makina odziyimira pawokhawa amapereka ma grid{1}}ntchito zamagawo monga kuwongolera ma frequency, thandizo lamagetsi, ndi kusunga mphamvu pazadzidzidzi.
Co-makina omwe alipo amayika limodzi ndi ma solar farms kapena makina opangira mphepo, ndikupanga makina osakanizidwa omwe amatha kutulutsanso mosavuta. Zosinthazi zitha kukhala DC-zophatikizana kapena AC-zophatikizana. DC-makina ophatikizana amatchaja mabatire mwachindunji ndi mphamvu yochokera ku sola isanadutse pa inverter, kuwongolera magwiridwe antchito. AC{{7}makina ophatikizana amakhala osavuta kubwezanso kumayimidwe omwe alipo kale, ngakhale amabweretsa kuwonongeka kowonjezera.
Ntchito zomwe machitidwewa amapereka zimapitilira kusungirako mphamvu mosavuta. Kuwongolera pafupipafupi kumathandizira kuti ma frequency a gridi akhale 60 Hz poyamwa nthawi yomweyo kapena kutulutsa mphamvu kuti igwirizane ndi zosowa ndi zosowa. Thandizo lamagetsi limakhazikika pamagetsi pa netiweki, kuteteza kuwonongeka kwa zida. Kumeta kwambiri kumachepetsa kupsinjika pa nthawi yochuluka-yofunidwa mwa kutulutsa mphamvu zomwe zasungidwa pamene grid ikukwera kwambiri.
Mphamvu yamagetsi imayimira ntchito ina yofunika: mabatire amalipira mitengo yamagetsi ikatsika ndikutuluka mitengo ikakwera, ndikutengera kusiyana kwamitengo. Chizindikiro chachuma ichi chimathandizira kusanja ndi kufunidwa kwinaku akuchepetsa mtengo wamagetsi onse kwa wogwiritsa ntchito.
Kulimbitsa mphamvu kumapangitsa kuti zongowonjezwwa zapakatikati ziziwoneka ngati zopangira magetsi zomwe zimatha kutumizidwa. Mitambo ikadutsa pafamu yoyendera dzuwa kapena kutsika kwa liwiro la mphepo, kusungirako kwa batire kumadzaza mpata wa m'badwo, ndikusunga kutulutsa kosasunthika. Kuthekera kumeneku kumawonjezera mtengo wa makhazikitsidwe ongowonjezwwdwanso ndikuchepetsa kuchepetsedwa-mchitidwe wowononga makina ongowonjezwdzw mochulukira pamene gululi silingavomereze.
Kukula Kwa Msika ndi Ziwerengero Zotumizira
Kusungirako mabatire a mphamvu zongowonjezwdwa kwakula kwambiri mzaka zaposachedwa. Zomwe zimagwiritsidwa ntchito ku US-kuchuluka kwa batire yosungirako zidapitilira 26 gigawatts (GW) pofika kumapeto kwa 2024, zomwe zikuyimira chiwonjezeko cha 66% kuchokera chaka cham'mbuyo pambuyo poti oyendetsa awonjezera 10.4 GW ya mphamvu yatsopano.
Kuthamanga uku sikuwonetsa zizindikiro zakuchedwetsa. Ogwiritsa ntchito akukonzekera kuwonjezera 18.2 GW yosungirako mabatire ku gridi yaku US mu 2025, zomwe zingakhazikitse mbiri yatsopano yapachaka ndikubweretsa mphamvu yoyika pafupifupi 44 GW. Zowonjezera izi zimapangitsa kusungirako kwa batri kukhala gwero lachiwiri- lalikulu kwambiri lopangira mphamvu zatsopano zopangira magetsi pambuyo pa solar, zomwe zikuwonetsa gawo lake lalikulu pakusintha ma gridi kukhala amakono.
Kukhazikika kwa malo kumatchulidwabe. California imatsogola ndi 12.5 GW ya batire yomwe idayikidwa mu 2024, pomwe Texas ikutsatira pafupifupi 8 GW, palimodzi ndikuwerengera ambiri aku US omwe amatumizidwa. Kuchulukaku kukuwonetsa mphamvu zowonjezedwanso za mayikowa komanso zovuta za grid zomwe kusungirako kumathandizira kuthetsa.
Chuma chamapulojekiti chapita patsogolo kwambiri. Mtengo wokwanira wa magetsi pakugwiritsa ntchito-kusungirako batire unatsika kuchoka pa $155/MWh mu 2023 kufika pa $104/MWh mu 2024, kutsika ndi 33% chifukwa cha kuwongolera kwa kupanga ndi kuchuluka kwa zinthu. Pazaka khumi zapitazi, ndalama zosungira batire zatsika ndi kupitilira kasanu ndi kawiri, kuyandikira grid parity ndi magwero am'badwo wamba.
Padziko lonse lapansi, kuchuluka kwa batire kumapitilira kusungirako kwamagetsi ku 2024, zomwe zikuwonetsa kusintha kwakukulu muukadaulo wosungira mphamvu. Ngakhale ma pumped hydro apereka malo osungiramo zinthu zambiri kwazaka zambiri, mabatire amapereka kusinthasintha kwa malo, nthawi yoyankha mwachangu, komanso modular scalability yomwe makina amagetsi sangafanane.
Mavuto Aukadaulo ndi Mayankho
Ngakhale kupita patsogolo kwachangu, kusungirako batire kwa mphamvu zongowonjezwdwa kumakumana ndi zopinga zingapo zaukadaulo. Kutentha kumakhudza magwiridwe antchito komanso chitetezo. Kutentha kwambiri kumathandizira kuwonongeka, pomwe kuzizira kumachepetsa mphamvu ndipo kumatha kuwononga maselo ngati kulipiritsa kumachitika pansi pa digirii 5. Machitidwe oyendetsera kutentha amathetsa vutoli koma amawonjezera mtengo ndi zovuta.
Kuwonongeka kwa ma cell kumachepetsa moyo wadongosolo. Mabatire a Lithium-ion nthawi zambiri amamaliza kuchajisa 2,000 mpaka 5,000-kutulutsa mphamvu yake isanatsike kufika 80% ya milingo yoyambirira, kutengera chemistry ndi momwe amagwirira ntchito. Kukalamba kwa kalendala-kuwonongeka kumene kumachitika popanda kupalasa njinga{10}}kumachepetsanso moyo wothandiza. Ogwira ntchito ayenera kukonzekera zosintha m'malo mwake, makamaka pambuyo pa zaka 10-15 zantchito.
Kuphatikizika kwa ma gridi kumabwera chifukwa chofuna kupereka mautumiki angapo nthawi imodzi ndikukwaniritsa zofunikira zaukadaulo pa chilichonse. Kuwongolera pafupipafupi kumafuna nthawi yoyankhira ma millisecond, pomwe kusintha kwamagetsi kumafuna maola ambiri kuti atuluke mosadukiza. Kugwirizanitsa ntchitozi kudzera mu ma aligorivimu apamwamba kwambiri kumakhalabe gawo logwira ntchito lachitukuko.
Zomwe zimadetsa nkhawa za chitetezo zimayang'ana pakutha kwa kutentha-kulephera kwamphamvu komwe selo limodzi likawotcha kwambiri limapangitsa kuti maselo oyandikana nawo atenthe kwambiri. Makina amakono amagwiritsa ntchito lithiamu iron phosphate chemistry, yomwe imakhala yotetezeka kwambiri kuposa momwe amapangidwira kale, ndipo amaphatikiza zigawo zingapo zoteteza kuphatikiza-kuwunika ma cell, kupatukana, ndi kuzimitsa moto.
Kulephera kwa zinthu kumatha kuchepetsa kukula. Lithium, faifi tambala, ndi cobalt ziyenera kukulirakulira kuti zikwaniritse zomwe zikuyembekezeredwa kuchokera pamagalimoto onse ndi malo osungira. Mapulogalamu obwezereranso zinthu zina ndi mafakitole ena pogwiritsa ntchito zinthu zochulukira, monga mabatire a sodium-ion, amafuna kuthana ndi zovutazi zisanachitike.
Mafunso Ofunsidwa Kawirikawiri
Kodi makina osungira mabatire amatha kulimbitsa gridi kwanthawi yayitali bwanji?
Zambiri zomwe zimagwiritsidwa ntchito-zoyika batire zimapatsa 2-maola 4 kuti azitha kutulutsa mphamvu kwambiri. Dongosolo la ma megawati 240-la ma megawati 60 limatha kupereka mphamvu zonse kwa maola anayi, theka la mphamvu kwa maola asanu ndi atatu, kapena kutsitsa mphamvu yamagetsi kwa nthawi yayitali. Kutalika kumatengera kuchuluka kwa mphamvu yamagetsi ndi kuchuluka kwa mphamvu, zokhala ndi nthawi yayitali-zimene zimakwaniritsa zosowa za msika kusiyana ndi zaufupi.
Kodi chimachitika ndi chiyani kwa mabatire akafika kumapeto kwa moyo?
Mabatire amasiya kugwira ntchito pakadutsa zaka 10-zaka 15 pamene mphamvu ya mabatire imatsika kufika pa 70-80% ya miyezo yoyambirira. Mabatirewa nthawi zambiri amapeza kugwiritsa ntchito moyo wachiwiri m'maudindo ovuta kwambiri asanawagwiritsenso ntchito. Njira zobwezeretsanso zimabwezeretsanso lithiamu, cobalt, faifi tambala, ndi zida zina zamtengo wapatali, ngakhale zida zobwezeretsanso zikupitilira kukula kuti zigwirizane ndi kuchuluka kwa mabatire omwe adapuma pantchito.
Kodi kusunga batire kungagwire ntchito popanda mphamvu zowonjezera?
Inde. Makina a batire a Standalone amalipiritsa kuchokera pagulu lonse losakanizika, kuphatikiza mafuta opangira mafuta, ndipo amapereka ntchito zamagulu amtengo wapatali mosasamala kanthu za komwe amachokera. Komabe, kuyanjanitsa mabatire ndi zongowonjezedwanso kumapangitsa kuti chilengedwe chikhale chothandiza kwambiri posunga mphamvu zoyeretsedwa zomwe mwina zingachepetsedwe ndikuchotsa zotsalira za pansi pa nthawi ya -zofunika kwambiri.
Kodi ndalama zosungira batire zikufanana bwanji ndi kumanga magetsi atsopano?
Ndalama zosungira mabatire zatsika mpaka amapikisana bwino ndi malo okwera kwambiri a gasi pamagwiritsidwe ntchito ambiri. Kuyerekeza kwapadera kumadalira momwe malowa amagwirira ntchito, mabatire amakhala otsika mtengo pazinthu zomwe zimagwira ntchito mwa apo ndi apo. Pophatikizidwa ndi m'badwo wongowonjezwdwa, dongosolo lophatikizidwa limatha kupereka mphamvu zolimba pamitengo yopikisana ndi m'badwo wamba.
Ma batire akuluakulu-akuluakulu tsopano amagwiritsa ntchito lithium iron phosphate chemistry m'malo mogwiritsa ntchito faifi tambala-yomwe imapezeka m'magalimoto amagetsi. Kusinthaku kukuwonetsa zinthu zofunika kwambiri pakati pa zoyendera ndi zosungirako nthawi zonse-mabatire a gridi amawongolera chitetezo, moyo wautali, ndi mtengo pa kilowatt-ola lililonse m'malo molemera ndi kuwongolera danga. Ukadaulo ukupitabe kusinthika, ndi -mabatire olimba, mabatire othamanga, ndi umisiri wina womwe ukubwera womwe ungathe kukonzanso mawonekedwe mzaka zikubwerazi.
Kumvetsetsa makina osungira mabatire kumathandizira kufotokoza chifukwa chake ukadaulo uwu wakhala wofunikira pakuphatikiza mphamvu zongowonjezeranso. Kuthekera kochepetsera nthawi yopangira zinthu kuchokera pakugwiritsa ntchito nthawi kumasintha momwe ma gridi amagetsi amagwirira ntchito, ndikupangitsa kuti maperesenti apamwamba azitha kusinthidwa ndikusunga kudalirika. Pamene ndalama zikupitilirabe kutsika komanso ukadaulo ukukula, kusungirako mabatire kwa mphamvu zongowonjezwdwa kudzatenga gawo lalikulu pakusintha kwamagetsi oyeretsa.