Mede bere a ɛdɔɔso atwa grid battery systems ho ahyia na mahu ade biako: nnipa dodow no ara fa no sɛ wɔte battery ahoɔden a wɔkora so ase esiane sɛ wɔahwɛ sɛ wɔn fon no so atew afi 40% akodu 1% wɔ simma du mu nti. Utility-scale systems yɛ aboa soronko koraa-kɛseɛ, ɛyɛ hyew, emu yɛ duru, ɛyɛ den, na ɛnyɛ bɔne fafiri koraa. Na nea ɛnte sɛ telefon no, wuntumi dum wɔn kɛkɛ na woanya anidaso sɛ ɔhaw no befi hɔ.
Nea Ɛrekɔ so Ankasa Wɔ Chemistry no Mu
Ne titiriw no, batere yɛ nnuru ho nkitahodi a ɛkɔ so wɔ ion ahorow ntam a wɔbɛpɛ sɛ ɛwɔ baabi foforo ankasa. Sɛ wobɔ no charge a, worehyɛ saa ions no akɔ tebea a ɛnyɛ dɛ, a ɛkorɔn-ahoɔden gyinabea. Bere a wɔretu no, wɔsan twetwe kɔ baabi a "wɔpɛ" sɛ wɔtra na wogyae ɛlɛtrɔnik wɔ kwan so.
Ɛno ne mfitiaseɛ mfonini-nanso grid battery ahoɔden akoraeɛ nhyehyɛeɛ no mfa mfitiaseɛ nkyerɛkyerɛmu ho. Chemistry no ho hia wɔ akwan a ɛyɛ ahometew na mfaso wɔ so so. Lithium-ion-titiriw LFP (lithium iron phosphate) ne NMC (nickel manganese cobalt)-dii nkonim mfe bi a atwam ni ɛnyɛ sɛ na wɔyɛ pɛ nti na mmom esiane sɛ biribi foforo biara ntumi nkɔbɔ nkabom koro no ara nti:
ɛka a ɛfata
ɔsɛe a wotumi gyina ano
asiane a wogye tom
a ɛkorɔn-ahoɔden a ɛdɔɔso
Bere biara a obi bɛbɔ mmɔden sɛ ɔbɛma eyi ayɛ mmerɛw dodo no, misusuw bere a edi kan a mepaapaee LFP rack a adi nkogu no ho. Wɔ kyinhyia mpempem pii akyi mpo no, na nkwammoaa ankorankoro no "nwui"; na wɔte sɛ adwumayɛfo a wɔabrɛ a wɔreyɛ nea ɛba fam koraa no kɛse. Ɛno yɛ degradation wɔ tiawa mu.
Ɔfã a Obiara Nnya Anigye: Tumi Nsakrae
Sɛ woagyina inverter dan mu pɛn ama 50 MW battery site a, wunim hum a mereka ho asɛm no-deep, steady, and slightly unnerving. Tumi nsakrae nhyehyɛe (PCS) no ne nea ɛdan DC a wɔde asie wɔ battery racks no mu no ma ɛbɛyɛ AC a grid no betumi de adi dwuma ankasa. Ɛsan nso yɛ baabi a w’ahoɔden 10–15% yera komm kɔ ɔhyew, nsakrae a ɛyera, ne nea entumi nyɛ adwuma yiye a aguadi nhomawa ahorow taa gloss so.
Matching grid no 50/60 Hz frequency, managing reactive power, nsakraeɛ adwumayɛ modes-ɛyɛ coordination dance a ɛkɔ so sekan biara. Obiara a ɔka sɛ "ɛyɛ inverter kɛkɛ" ebia ɛho nhia sɛ osiesie biako anɔpa nnɔn abiɛsa wɔ grid adeyɛ bi mu.
Nea Enti a Lithium-Ion Da so ara Di So
Nkurɔfo ani gye ho sɛ wɔbɛsusuw nnuru a ɛyɛ nwonwa-vanadium flow, zinc-bromine, sodium, nsɛm ho amanneɛbɔ biara a ɛrekɔ so saa dapɛn no ho. Ɛnonom benya wɔn gyinabea. Nanso nnɛyi batere ahoɔden a wɔkora so gua no di dwuma wɔ LFP so esiane ade biako a ɛyɛ mfonoe kɛse nti: ɛyɛ nea ahobammɔ wom na ne bo nyɛ den sɛ wode bɛmena wɔ ade mu a womma wo insurance adwumakuw no nya komayare.
NMC wɔ ne mfasoɔ (ahoɔden density titire), nanso wɔ stationary systems, density nyɛ ɔhene-predictable suban wɔ huammɔdi tebea mu yɛ. Obiara mpɛ thermal asɛm a ɛdane dapɛn-asɛmpa.
Na yiw, lithium a wɔde ma no mu nsakrae yɛ nokware. Yiw, asase ho amammuisɛm ho hia. Nanso mfiridwumayɛfo de nea ɛwɔ hɔ mprempren na ɛyɛ adwuma, na ɛnyɛ nea ebia ɛbɛyɛ nea wobetumi atɔ wɔ afe 2032 mu.
Ɔhyew: Ɔhaw-Ɔyɛfo
Sɛ wopɛ sɛ wote utility-scale battery design ase a, di cooling system no akyi. Batere mpɛ sɛ ɛyɛ hyew. Wɔn nso mpɛ awɔw. Na wɔtan ɔhyew a ɛkɔ soro wɔ rack no mu koraa.
Wɔ awɔw bere mu sɔhwɛ biako mu wɔ Kesee Fam Atɔe no, yehui sɛ na onwini nhyehyɛe no redi bɛboro 5% wɔ nea efi mu ba nyinaa mu-reko atia ɔhyew a ɛwɔ baabiara kɛkɛ ansa na batere no refi ase mpo de ahoɔden ama. Active liquid cooling, forced-air cooling, phase-change material buffers... ɔkwan biara titiriw yɛ gye a wogye tom sɛ nnuru no yɛ brilliant nanso ɛyɛ temperamental.
Battery Storage a wode bɛhyɛ Grid no mu no nyɛ mmerɛw te sɛ Power Strip a wode bɛhyɛ mu
Grid integration nya glossed over wɔ nsɛm dodow no ara mu, nanso ɛyɛ ɔfã a projects di nkonim anaasɛ ewu. Frequency response, voltage regulation, EMS/BMS coordination-ne nyinaa rekɔ so bere nyinaa, a miliseconds a wɔde bɛyɛ wɔn ade ne kwan kakraa bi pɛ ma mfomso.
Batere tumi fi zero kɔ full output ntɛmntɛm sen gas peaker biara. Ɛno nti na adwumayɛfo a wɔyɛ adwuma wɔ hɔ no dɔ wɔn no. Nanso saa ahoɔhare no kyerɛ sɛ ɛsɛ sɛ wo control algorithms no hwɛ nneyɛe kwan, na ɛnyɛ sɛ wɔbɛyɛ wɔn ade kɛkɛ. Mprempren nhyehyɛe binom de mfiri adesua di dwuma de hyɛ grid a ɛnkari pɛ ho nkɔm-ɛwom sɛ mahu sɛ adwumayɛfo bɛboro biako gye tom komm sɛ wɔda so ara pɛ PID loop dedaw pa ma nkɔmhyɛ.
Baabi a Ebia Nneɛma Bɛkɔ Ankasa
Nkurɔfo kɔ so ka sɛ solid-state batteries no "ayɛ mfe anum." Me te saa firi bɛyɛ afe 2014, na yɛwɔ ha. Nyansahu kɛse, nneɛma a wɔyɛ a ɛyɛ den.
Nea ɛte sɛ nea ɛyɛ nokware kɛse ne nkɔso a ɛba nkakrankakra:
kyinhyia nkwa nna a ɛware kakra
nneɛma a wɔde ma a ne bo yɛ mmerɛw kakra
nnuru a ahobammɔ wom kakra
ɔhyew a wɔde di dwuma yiye kakra
Biribiara nni hɔ a ɛyɛ nwonwa, nanso ɛdɔɔso sɛ ɛbɛpia bere tenten a wɔde gu nsu mu no fi nnɔnhwerew 2–4 kosi nnɔnhwerew 6–10. Ɛno ne bere a batere ahoɔden a wɔkora so gyae sɛ ɛbɛyɛ grid accessory na efi ase bɛyɛ bere nyinaa-bere a wɔde besi ananmu ama nhyehyɛe ahorow bi a egyina fossil-.
Na ɛwɔ hɔ a ɛto so abien-nkwa EV batere-nea ɛfata sɛ wɔde adwene si so. Pack a ɛwɔ 80% tumi yɛ lousy ma kar nanso wogye tom koraa ma stationary storage. M’ankasa masɔ kakraa bi ahwɛ. Wɔyɛ basabasa, wɔnyɛ pɛpɛɛpɛ, nanso ɛyɛ nwonwa sɛ wotumi yɛ adwuma bere a wɔde ahyɛ controls a ɛfata mu no.
Nsɛnnennen Ankasa
1. Degradation modeling da so ara yɛ nsusuwii hunu.
Ɛnyɛ total guesswork, nanso ɛbɛn sɛnea ɛsɛ ɛtɔ mmere bi a. Ɔhyew, sakre kwan, nsu a ɛkɔ mu no mu dɔ, kalenda so onyin-wɔn di nkitaho wɔ akwan horow so a nsɛso a ɛnyɛ den biara nkyere ankasa.
2. Nneɛma a wɔde di dwuma bio no nsiesiee baabiara.
Yɛde gigawatt-dɔnhwerew lithium nhyehyɛe ahorow rehyɛ mu afe biara a nhyehyɛe biara nni hɔ a ɛfa asorɔkye a ɛbɛba awiei-a -nkwa batere a ɛreba mfe 10–15 akyi no ho.
3. Software abɛyɛ nea ɛho hia te sɛ hardware.
BMS nteaseɛ, nkɔmhyɛ nhyehyɛeɛ, cell kari pɛ akwan-nnɛyi batere akoraeɛ nhyehyɛeɛ boɔ fã te softwea mu. Na software nyin ntɛmntɛm sen hardware.
Nsusuwii a Etwa To
Battery ahoɔden a wɔde sie no nyɛ nkonyaayi, na ɛnyɛ mmerɛw. Nnyinasosɛm atitiriw no te sɛ nea na ɛte wɔ mfe du du a atwam no mu nnɛ. Nea ɛsakraa ne ɔpɛ a yɛwɔ sɛ yɛbɛkyekyere nhyehyɛe akɛse, de ahyɛ grid no mu kɔ akyiri, na yɛayɛ mfiridwuma a ɛboa nneɛma a atwa ho ahyia no. Chemistry no nyɛ breakthrough-mfiridwuma nteɛso a atwa ho ahyia no yɛ.
Sɛ woafa baabi a wɔde batere sie pɛn a ɛrebɔ gyegyeegye wɔ adesoa a edi mũ mu, a mframa a ɛma onwini repae na inverters rebɔ te sɛ koma bɔ a, wunim: saa mfiridwuma yi yɛ nea mfaso wɔ so mprempren. Ɛnyɛ pɛ, nanso ɛyɛ nokware ankasa.