Battery Ahoɔden a Wɔde Siesie Nhyehyɛe a edi mũ (BESS) hwehwɛ sɛ wɔde adwene si adwumayɛ ho nsɛnkyerɛnne atitiriw abien so: biako fa ahoɔden a wɔkora so ne sɛnea wɔde di dwuma ho, kyerɛ sɛ, ɛfa tumi ho; na foforo no fa tumi a wotumi de ahoɔden san hyɛ mu ma anaasɛ wogyae, kyerɛ sɛ, ɛfa tumi ho. Wɔtaa de abusuabɔ a ɛda saa afã abien yi ntam no di dwuma de kyerɛ nsonsonoe a ɛda sɛ ebia ahoɔden a wɔkora so nhyehyɛe no yɛ ahoɔden-gyina anaasɛ tumi-gyina.
Battery ahoɔden a wɔkora so nhyehyɛe no tumi
Saa metric yi gyina hɔ ma ahoɔden a ɛsen biara a ɛwɔ nsusuwii mu a adekora nhyehyɛe bi betumi akura mu, a wɔtaa da no adi wɔ kilowatt- nnɔnhwerew (kWh) anaa megawatt- nnɔnhwerew (MWh) mu. Eyi yɛ nneɛma a ɛho hia sen biara wɔ ahoɔden a wɔkora so nhyehyɛe mu no mu biako; nanso, sɛnea batere no mu dɔ (DOD) ne sɛnea nhyehyɛe no yɛ adwuma yiye no nya tumi a wotumi de di dwuma ankasa no so nkɛntɛnso.
BESS (Battery Energy Storage System) tumi si ahoɔden dodow a wobetumi de adi dwuma anaasɛ wɔde adi dwuma so dua, a ɛsono sɛnea wɔkyerɛkyerɛ batere ahoɔden mu. Battery tumi taa kyerɛ tumi a battery tumi wɔ wɔ tebea horow bi mu (discharge rate, temperature, termination voltage, ne nea ɛkeka ho), na wɔsusu no ampere-hours (Ah), a egyina hɔ ma integral of current wɔ bere mu.
Battery ahoɔden akorae nhyehyɛe:Maximum nhyehyɛe tumi
Nhyehyɛe no ahoɔden a ɛsen biara no kyerɛ ahoɔden a ɛsen biara a ɛwɔ ahoɔden a wɔkora so nhyehyɛe no mu, na wɔtaa de kilowatt (kW) anaa megawatt (MW) kyerɛ. Saa adwumayɛ ho kyerɛwtohɔ yi gyina sɛnea wɔayɛ ɔmansin titiriw no nyinaa so, a batere, DC transmission circuit, PCS, ne AC nkitahodi ka ho, ne mpo adehwere a ɛba bere a wɔreyɛ adwuma wɔ ahoɔden a ɛsen biara mu (wɔbɛdan saa adehwere yi titiriw ayɛ no ɔhyew), a ɛka sɛnea wɔayɛ ɔhyew sohwɛ nhyehyɛe ne nnwinnade afoforo a ɛboa no. Ahoɔden a wɔkora so nhyehyɛe a ɛwɔ tumi koro no betumi anya dwumadi ahorow a ɛsono emu biara esiane nsonsonoe a ɛwɔ ahoɔden a ɛsen biara mu nti; ahoɔden a wɔkora so nhyehyɛe koro no ara mpo benya nsonsonoe a ɛyɛ ahinanan wɔ adwumayɛ mu esiane ahoɔden a ɛsono sɛnea wɔde yɛ adwuma nti.
Sɛ ahoɔden parameter no yɛ kɛseɛ kakra sɛ wɔde toto tumi parameter no ho a, te sɛ 1 MW/500 kWh a, wɔfrɛ no power-type ahoɔden akoraeɛ nhyehyɛeɛ; nea ɛne no bɔ abira no, sɛ ɛyɛ 500 kW/1 MWh a, wɔfrɛ no ahoɔden-su ahoɔden a wɔkora so nhyehyɛe. Enti, ɛtɔ da bi a wɔde bere ho adwene no ba, te sɛ nea wɔakyerɛw kan no sɛ 1 MW/0.5 h, ne nea etwa to no sɛ 500 kW/2 h.
Battery ahoɔden akorae nhyehyɛe:Ahoɔden a ɛyera ne efficiency
Sɛnea ahoɔden a wɔkora so nhyehyɛe bi yɛ adwuma yiye no da ahoɔden a wɔhwere bere a wɔrebɔ na wɔreyi afi mu no adi. Yebetumi ate ase sɛ ahoɔden a nhyehyɛe no gyae ne ahoɔden a wɔde ahyɛ mu no nsusuwii, a wɔsan frɛ no kyinhyia a ɛyɛ adwuma yiye. Saa adehwere yi nnyɛ mfiridwuma mu ahoɔden a wɔde sie batere no nko na mmom egyina anyinam ahoɔden nneɛma te sɛ tumi nsakrae nhyehyɛe (PCS) nso so. Wɔ ntease ketewaa mu no, nhyehyɛe no mu mmɔdenbɔ titiriw kyerɛ adehwere a ɛwɔ ɔmansin titiriw no mu bere a wɔrebɔ na wɔrebɔ no, efi batere, DC bɔs, PCS, ne awiei koraa no ɛkɔ transformer (sɛ ɛwɔ hɔ a). Nanso, wɔ mfiridwuma mu dwumadie a mfasoɔ wɔ so mu no, ahoɔden a wɔde di dwuma wɔ nnwinnadeɛ a ɛboa te sɛ ɔhyeɛ sohwɛ nhyehyɛeɛ mu no taa ka nea wɔhwere nyinaa ho, na ɛnam so ka adwumayɛ a ɛyɛ adwuma yie nyinaa.
Mfonini: BESS ahoɔden kari pɛ abusuabɔ
Battery ahoɔden a wɔkora so nhyehyɛe:Number of cycles
Battery bi charge-discharge cycles dodow na ɛkyerɛ ne nkwa nna. Wɔ ahoɔden a wɔkora so nhyehyɛe mu no, esiane sɛ batere no bo yɛ den nti, ne nkwa nna nso na ɛkyerɛ nhyehyɛe no nyinaa nkwa nna. Kyinhyia no nkwa nna a ɛsɛe no ma emu ahoɔden a ɛko tia no kɔ soro, na ɛno nso ma nneɛma a wɔhwere ne ɔhyew a ɛba no yɛ kɛse, na ɛma ɔsɛe no yɛ ntɛmntɛm bio. Bio nso, batere a ɛtaa ba boro so ne -a ɛbɔ boro so no ma dade nneɛma a ɛwɔ electrolyte no mu no tete mpɛn pii na ɛkɔ fam, na ɛno nso nya batere no kyinhyia nkwa ne ahobammɔ so nkɛntɛnso kɛse.
Wɔ lithium-ion battery bi ho no, kyinhyia dodow a ɛwɔ 1C charge ne 1C discharge tebea mu no kyerɛ nsonsonoe kɛse wɔ depths of discharge (DOD) ahorow mu, sɛnea wɔakyerɛ wɔ mfonini no mu no.
Battery ahoɔden a wɔkora so nhyehyɛe no ho ka
Ka a wɔbɔ wɔ ahoɔden a wɔkora so nhyehyɛe ahorow ho no ne nhyehyɛe no tumi, ahoɔden, ne tebea a ɛyɛ adwuma no wɔ abusuabɔ kɛse. Mpɛn pii no, wɔ ahoɔden-su akorae nhyehyɛe mu no, batere ho ka yɛ nea ɛkɔ soro koraa; bere a ɛwɔ power-type storage systems mu no, battery ho ka sua koraa. Nanso, sɛnea ɛte biara no, mprempren batere no ho ka yɛ BESS ka nyinaa fã titiriw, na ɛbɛyɛ beae titiriw a wɔbɛtew ɛka so daakye nso.
Wobetumi ada ɛka a wɔbɔ no adi sɛ yuan/kWh anaa yuan/kW, nanso emu biara nkyerɛ nea ɛkyerɛ no yiye na ɛyɛ pɛpɛɛpɛ. Enti, ɛho hia sɛ wɔkyerɛ tumi ne tumi nyinaa bere koro mu bere a wɔresusuw nnwuma pɔtee bi ho no.
Battery ahoɔden a wɔkora so nhyehyɛe:ɛka Mmuae bere
Wɔ BESS (Battery Energy Storage Systems) fam no, tumi nsakraeɛ ne mmuaeɛ berɛ nyinaa wɔ milisekɔn mu, a ɛdɔɔso ma tumi nhyehyɛeɛ dwumadie. Ɛha na BESS di mu sɛ wɔde toto honam fam ahoɔden a wɔkora so akwan foforɔ te sɛ flywheel ahoɔden a wɔkora so ne pumped-storage hydropower ho a. Nanso, esiane anohyeto ahorow a ɛwɔ ahoɔden a ɛwɔ ahoɔden, akwan a wɔfa so de si hɔ, ne battery cell tumi mu nti, ahoɔden ne tumi a ɛwɔ BESS unit biako mu no sua koraa. Enti, wɔ ahoɔden a wɔkora so ahoɔden mfiri akɛseɛ-mu, te sɛ deɛ ɛyɛ 5MW/2h ahoɔden a wɔkora soɔ a wɔtaa de di dwuma du du pii a wɔde abɔ mu wɔ parallel mu no, nkitahodi kwan ne nhyehyɛeɛ kwan no titire na ɛbɛto bottleneck a ɛwɔ mmuaeɛ berɛ mu no ano hyeɛ. Ɛbɛsan nso anya nkɛntɛnsoɔ wɔ dwumadie te sɛ tumi nhyehyɛeɛ ne circulating current suppression wɔ parallel devices no mu. Station-level mmuae bere a etwa to no betumi ayɛ milisekɔn ɔhaha pii anaa sekan mpo. Nokwarem no, 5MW/2h BESS unit biako yɛ nsusuwii hunu nhwɛso ara kwa; batere ahorow a wɔde di dwuma wɔ ɔkwan a ɛne ne ho di nsɛ so dodo no ankasa de ahobammɔ ho asiane kɛse ba. Saa ɔhaw yi ano aduru hwehwɛ sɛ wɔyɛ nsakrae wɔ kuw sohwɛ akwan ne nkɔso ne ahoɔden a wɔkora so nhyehyɛe mfiridwuma foforo te sɛ high-voltage direct connection a wɔde di dwuma.
Battery ahoɔden a wɔkora so nhyehyɛe:Nneɛma afoforo
Wɔ dwumadie tebea foforɔ anaa sikasɛm mu nhwehwɛmu mu no, wɔde nsusuiɛ te sɛ ahoɔden pɔtee (ahoɔden-ne-mass ratio, Wh/kg), tumi pɔtee (tumi{2}}to-mass ratio, kW/kg), ne ahoɔden density wɔ unit area biara mu (ahoɔden-to-area ratio, Wh/m2) nso di dwuma. Saa nsusuwii ahorow yi fata ma akontaabu a ɛfa adwuma no akwantu ho ka ne asase a wɔde di dwuma ho ahwehwɛde ahorow ho.