Sɛnea Wɔbɛma Owia Batere Bank Kɛse (Formula + Nhwɛsode) .

Solar Battery Sizing Formula Bɛn na Ɛsɛ sɛ wode Di Dwuma?

Beae a ɛfata a wobefi ase no gyina nea wɔhwɛ kwan sɛ batere no bɛyɛ so. Ansa na wobɛpaw adeɛ bi no, kyerɛ sɛ adwuma no yɛ ma outage backup, full-time off-grid dwumadie, anaa da biara da owia self-di dwuma. Sɛ wopɛ nhyehyɛe-level ntotoho a ɛtrɛw a, hwɛ muon-grid, off-grid, ne owia nhyehyɛe nhyehyɛe a wɔde afrafra.

Formula a ɛfa Home Backup Battery Kɛse ho

Di kan bu AC ahoɔden a ɛsɛ sɛ adesoa a wɔabɔ ho ban no nya ho akontaa:

Adesoa ahoɔden a wɔhwehwɛ (kWh)=adesoa a ɛho hia (kW) × bere a wɔde sie ( nnɔnhwerew) .

Afei bu battery a wɔfrɛ no nominal capacity ho akontaa:

Battery ahoɔden a wɔfrɛ no (kWh)=adesoa ahoɔden a wɔhwehwɛ × design margin ÷ battery fraction a wotumi de di dwuma ÷ delivery efficiency

Fomula a ɛfa Off-Grid Owia Batere Bank Sizing ho

Wɔ off-grid nhyehyɛe a ɛsɛ sɛ ɛyɛ adwuma wɔ anadwo anaa mmere a owia ahoɔden yɛ mmerɛw mu no:

Battery ahoɔden a wɔfrɛ no (kWh)=da biara da adwini adesoa (kWh/da) × autonomy nna × design margin ÷ battery fraction a wotumi de di dwuma ÷ delivery efficiency

Fomula ma Owia Ankasa-Adedi

Bu owia ahoɔden dodow a wobetumi de asie awiabere ne adesoa dodow a ebetumi de adi dwuma anwummere anaa anadwo no ho akontaa. Ahoɔden a mfaso wɔ so-sesa botae no taa yɛ ketewaa wɔ saa gyinapɛn abien no mu:

Target shifted energy=a ɛba fam sen owia a ɛboro so a wɔhwɛ kwan anaasɛ wɔayɛ ho nhyehyɛe wɔ-owiatɔe akyi adesoa

Afei yɛ nsakrae wɔ botae no mu ma battery ahoɔden a wotumi de di dwuma ne nsakrae a ɛfata a wɔhwere. Nhyehyɛe no nhyehyɛe ho hia efisɛAC-a ɛka bom ne DC-a ɛka bom batere akoraede nsakraeɛ a ɛyera gu mmeaeɛ ahodoɔ wɔ ahoɔden kwan no mu.

Solar Battery Bank Formula Nneɛma a Ɛsakra ne Nneɛma a Wɔde Yɛ Adwuma

Fa asɛmfua biako di dwuma ma honam fam dodow biara. Adesoa tumi a wɔde fra adesoa ahoɔden mu no yɛ nneɛma a ɛtaa de nea efi mu ba a ɛnteɛ ba no mu biako.

Tumi a ɛwɔ kW mu na ɛkyerɛ adesoa dodow a nhyehyɛe no betumi agyina bere koro mu. Ahoɔden a ɛwɔ kWh mu na ɛkyerɛ bere tenten a ebetumi agyina saa adesoa no ano. Wɔakyerɛkyerɛ nsonsonoe no mu kɔ akyiri wɔ akwankyerɛ yi mu kɔkW ne kWh wɔ battery ahoɔden a wɔkora so mu.

Kyerɛkyerɛ Nea Ɛsɛ sɛ Batere no Yɛ

Home Backup a Ɛho Hia Ntɛmntɛm

Ɛsɛ sɛ ofie backup nhyehyɛe fi ase de adesoa a wɔabɔ ho ban-adesoa a wɔahyehyɛ, ɛnyɛ ofie no anyinam ahoɔden a wɔde di dwuma afe biara anaa da biara da nyinaa. Kyerɛ amansin a ɛsɛ sɛ ɛkɔ so yɛ adwuma, bere tenten a wɔhwɛ kwan sɛ ɛbɛtwa, ne mfiri a ebetumi ayɛ adwuma bere koro mu.

Owia ahoɔden mfiri mma ahoɔden a wɔde bɛboa no ankasa bere a anyinam ahoɔden afiri atwa mu no. Nhyehyɛe no hia nnwinnade a wɔayɛ sɛ ɛbɛma anyinam ahoɔden nhyehyɛe no atwa dwoodwoo na ayɛ anyinam ahoɔden nhyehyɛe a ɛwɔ supɔw so. U.S. Ahoɔden Dwumadibea no kyerɛkyerɛ adwumayɛ ho ahwehwɛde yi mu wɔ ne...owia ne ahoɔden a wɔde gyina ano ho akwankyerɛ.

Full-Bere a Wɔde Yɛ Adwuma-Grid Tumi

Ɛsɛ sɛ off-grid battery kata mmere a owia awo ntoatoaso no wɔ adesoa no ase. Nsusuwii no taa susuw anadwo ahwehwɛde, owia ahoɔden a ɛso tew wɔ mmere mu, mununkum bere a ɛtoatoa so, inverter a wɔde gyina hɔ a wɔde di dwuma, pɔmpɛ a wɔde di dwuma bere ne bere mu, generator a ɛwɔ hɔ, ne load-shedding options ho.

Ɛsɛ sɛ wɔbom yɛ nneɛma a wɔkora so ne owia ahoɔden awo ntoatoaso no kɛse. Batere kɛse ntumi ntumi nnyina ano yiye sɛ owia ahoɔden nhyehyɛe anaa generator no ntumi nsi ahoɔden a wɔayi afi mu no ananmu a. Sɛ wopɛ nsɛm a ɛfa ho foforo a, hwɛ sɛnea aowia ahoɔden a wɔkora so nhyehyɛe no na ɛyɛ awo ntoatoaso, nneɛma a wɔkora so, ne adesoa ahorow ho nhyehyɛe.

Da biara da Owia Ankasa-Nneɛma a Wɔde Di Dwuma

Batere a ɛde ne ho di dwuma no sie owia ahoɔden a ɛboro so awiabere ma wɔde di dwuma akyiri yi. Tumi a mfaso wɔ so no yɛ nea owia ahoɔden a ɛboro so dodow a ɛwɔ hɔ a wɔde bɛbɔ ka ne anwummere anaa anadwo dodow a wɔhwehwɛ sɛ wɔde bɛtow agu no nyinaa na esiw ano. Ebia wɔmfa nna pii a wɔde sie no nni dwuma yiye wɔ nhyehyɛe bi a ɛma wonya sika kakraa bi pɛ a ɛboro so da biara da mu.

Bu Adesoa a Wuhia Ankasa Ho Ho akontaa

Yɛ load table ansa na woapaw battery. Fa ahoɔden a wɔasusuw di dwuma bere biara a ɛbɛyɛ yiye, titiriw wɔ nnwinnade a ɛyɛ kyinhyia a ɛsɔ na ɛdum no ho.

Saa pon yi yɛ nhwɛsoɔ susudua-gyina adwumayɛ nhyehyɛeɛ, ɛnyɛ amansan fie nsɛm. Fa project data si botae biara ananmu.

Fa Nsusuwii a Wɔde Di Dwuma a Wɔde Di Dwuma Di Dwuma

1. Sua plug-in mfiri anyɛ yiye koraa no nnɔnhwerew 24 kosi 72 bere a ɛbɛyɛ yiye.
2. Fa inverter monitoring anaa utility interval data di dwuma de kyerɛ nnɔnhwerew 24 baseload ne ahwehwɛde a ɛkɔ soro sen biara a ɛkɔ so daa.
3. Kyerɛw nneɛma a ɛwɔ bere mu no wɔ ɔkwan soronko so, a nea ɛka ho ne ɔhyew, onwini, nsu a wɔde yi nsu fi mu, ne nsu a wɔde pam.
4. Hwɛ motor-starting current fi mfiri nkrataa no mu anaa ma ɔbenfo a ɔfata nsusuw.
5. Fa ananmusifoɔ a ɛkorɔn-adesoa berɛ di dwuma sene sɛ wode da a ɛyɛ mmerɛw a wɔde di dwuma a ɛba fam-di dwuma.

DOE no de noBattery Energy Storage System Nhwehwɛmu Ɔkwan a Wɔfa so Yɛsi bo a ɛsom wɔ bere a wɔde mita-series data a wɔde bɛsɔ ahoɔden akorae adwumayɛ ankasa ahwɛ so dua. Nnyinasosɛm koro no ara ma adesoa ho akontaabu a edi kan no tu mpɔn: nsɛm a wɔasusuw no taa yɛ nea mfaso wɔ so sen ɔsram biara dodow biako.

Tetew Adesoa a Ɛho Hia, Ɛyɛ Nsakrae, ne Nea Wɔayi afi Mu no Mu

• Adesoa a ɛho hia:nnwinnade a ɛsɛ sɛ ɛyɛ adwuma wɔ bere a wɔayɛ no nyinaa mu.
• Adesoa a ɛyɛ mmerɛw:nnwinnade a ebetumi ayɛ adwuma nnɔnhwerew kakraa bi anaasɛ bere a owia ahoɔden awo ntoatoaso wɔ hɔ nkutoo.
• Adesoa a wɔayi afi mu:nnwinnade a ɛbɛkɔ so adum wɔ bere a wɔagyae anaasɛ ahoɔden a ɛba fam-bere mu.

Ɔhyew a anyinam ahoɔden ntumi nkɔ mu, mframa a wɔde yɛ adwuma wɔ mfinimfini, nsu a wɔde yɛ hyew akɛse, anyinam ahoɔden a wɔde noa aduan, ntade a wɔde dry, ne EV a wɔde charge no betumi adi nneɛma a wɔhwehwɛ wɔ nneɛma a wɔkora so no so. Sɛ woyi ahoɔden adesoa biako a ɛkorɔn-fi hɔ anaa woyɛ nhyehyɛe a, ebetumi atew batere kɛse so asen sɛ wubeyi ɛlɛtrɔnik mfiri nketewa pii afi hɔ.

Paw Backup Nnɔnhwerew anaa Nna a Wɔde Di Dwuma

Backup Nnɔnhwerew ma Grid-Fie a Wɔaka abom

Paw botae bi a egyina sɛnea batere no twa wɔ mpɔtam hɔ ne ɔsom adwuma a ɛsɛ sɛ batere no de ma so: bere tiaa bi a wɔde twa mu, anwummere biako, bere a wɔatwa anadwo biako, da mũ nyinaa, anaa ntɛmpɛ a ɛware. Si gyinae sɛ ebia owia ahoɔden bɛba bere a grid no ayɛ adwuma ne sɛ ebia nhyehyɛe no som adesoa panel a wɔabɔ ho ban- anaasɛ ɔdan no nyinaa.

Autonomy Nna ma Off-Grid Nhyehyɛe

Autonomy yɛ bere a battery no betumi asom design adesoa a enni charge a ɛdɔɔso. Fa owia tebea a ɛwɔ mmere bi mu, mununkum bere a wɔhwɛ kwan, ahotoso a ɛwɔ generator mu, pɛtro a ɛwɔ hɔ, adesoa-hwiegu akwan horow, beae a wobɛkɔ, ne nea efi ahoɔden a ɛbɛsa mu ba no paw no.

Ebia beae a ɛwɔ akyirikyiri a enni backup source a wotumi de ho to so no behia sɛ wɔkora nneɛma pii sen agyapade a ɛwɔ automatic generator. Enti nna dodow a ɛfata a wɔde bɛma ahofadi no yɛ adwuma no gyinaesi, na ɛnyɛ nnwuma mu ɔha biara mu nkyem a wɔahyɛ da ayɛ.

Fa Interval Load Profile Di Dwuma Bere a Ɛwɔ Hɔ

Afie mmienu biara tumi di kWh 10 da biara nanso ɛhia batere ne inverter ahodoɔ. Obi betumi de ahoɔden adi dwuma nkakrankakra; ɔfoforo no betumi de pɔmpɛ, microwave, ne mframa a wɔde yɛ adwuma adi dwuma bere koro mu. Da biara da kWh betumi ayɛ pɛ bere a peak kW ne surge current yɛ soronko koraa.

Fa DoD, Efficiency, ne Reserve Bu Battery Capacity a Wotumi De Di Dwuma no ho akontaa

Fa Nea Ɔyɛfo no Tumi a Wotumi De Di Dwuma no Di Dwuma

Depth of discharge kyerɛ sɛnea woyi tumi a wɔahyɛ no dodow no ara fi hɔ wɔ kyinhyia bi mu. Sɛ wopɛ sɛ wudi kan kyerɛ ne kɛse a, fa batere yɛfo no kwan a wɔama ho kwan sɛ wɔde di dwuma anaa ahoɔden a wɔaka sɛ wode bedi dwuma no di dwuma sen sɛ wode amansan ɔha biara mu nkyem biako bedi dwuma.

Sɛ wɔde batere a ɛyɛ kWh 10 di dwuma wɔ 90% a wotumi de di dwuma mu a, ɛma DC batere ahoɔden a wotumi de di dwuma kWh 9 ansa na wɔasusuw nneɛma afoforo a ɛbɛhwere wɔ nsu no ase ho:

10 kWh × 0.90=9 kWh

Waranti tebea, tebea-a-chare anohyeto, discharge rate, battery mfe, ɔhyew, firmware nhyehyɛe, ne cycle nkwa a wɔpɛ nyinaa betumi asesa adwumayɛ mfɛnsere a mfaso wɔ so.

Fa Efficiency Metric a Ɛteɛ no di dwuma

Wɔ outage runtime ho no, botaeɛ a ɛfa ho no taa yɛ ɔkwan baako-kwan a ɛyɛ adwuma yie firi batere ahoɔden a wɔakora so kɔ adesoa a wɔabɔ ho ban no so. Round-trip efficiency ka charge ne discharging nyinaa ho na ɛnsɛ sɛ wɔde si ananmu wɔ ɔkwan biako-kwan biako so runtime akontabuo mu.

Hwɛ nso sɛ wɔsusu afiri bi ahoɔden a wɔde di dwuma a wɔatintim no wɔ DC fã anaasɛ wɔde ma wɔ AC fã. Sɛ nea ɔyɛe no ka AC ahoɔden a wotumi de di dwuma dedaw a, sɛ woyi inverter a wɔhwere no fi mu bio a, ebetumi abu adehwere koro no ara mmɔho abien-.

Sandia Ɔman Nhwehwɛmubea ahorowDOE/EPRI Electricity Storage Nwomade mfiridwuma ho nsɛm a ɛtrɛw ma wɔ nneɛma a wɔkora so adwumayɛ, tumi, ahoɔden, adwumayɛ a etu mpɔn, ne dwumadie-nsusuiɛ pɔtee ho.

Fa Nsusuwii Margin a Ɛda Hɔ Di Dwuma

Design margin betumi akata adwenem naayɛ kakraa bi, daakye adesoa nketenkete, tumi a ɛso tew bere tenten, ne mfomso nketenkete a ɛwɔ runtime akontaabu mu. Ka no pefee sɛ multiplier, te sɛ 1.10 ma 10% allowance.

Ɛnsɛ sɛ margin no de adesoa data a enye sie. Di kan ma adesoa ho akontaabu no tu mpɔn, afei fa sika a wɔahyɛ da de asie ka ho.

Hwɛ Temperature ne Installation Tebea horow

Ɔhyew betumi aka tumi a wotumi de di dwuma, gye a wogye sika, tumi a wɔde fi mu, BMS suban, ne ɔsom nkwa nna. Hwɛ afiri no hyew a ɛba fam koraa a wɔde charge, ɔhyew a ɛba fam a wɔde gu mu, derating curves, a wɔasisi-wɔ ɔhyew mu, enclosure rating, onwini anaa mframa a wɔhwehwɛ, ne dan mu anaa abɔnten a wɔde besisi anohyeto.

Mfa awɔw-wim tebea ho ade biako nhyɛ lithium batere biara so. Ɛsono nnuruyɛ, nkwammoaa nhyehyɛe, ɔhyew a wɔde di dwuma, ne BMS nhyehyɛe. Saa nsɛm a wɔaka abom yilithium battery adwumayɛ mu hyew ahorowbetumi aboa ma wɔahu nneɛma a wɔyɛ no ho nsɛm a ɛsɛ sɛ wɔhwɛ mu.

Dane kWh kɔ Ah na Paw 12V, 24V, anaa 48V

Wobetumi akyerɛ batere ahoɔden wɔ kilowatt- nnɔnhwerew mu, bere a wɔakyerɛkyerɛ nhyehyɛe ahorow bi mu wɔ amp- nnɔnhwerew mu. Abusuabɔ no ne sɛ:

Ahoɔden (Wh)=ahoɔden (V) × tumi (Ah) .

Enti:

Tumi (Ah)=ahoɔden (kWh) × 1,000 ÷ din nhyehyɛe mu ahoɔden

Saa amp-dɔnhwerew botae ahorow yi gyina hɔ ma bɛyɛ ahoɔden a wɔfrɛ no ahoɔden koro no ara. Voltage a ɛkorɔn no brɛ current a ɛho hia na ama ahoɔden koro no ara ama no ase, na ɛno betumi atew conductor kɛse ne voltage drop so bere a wɔayɛ nhyehyɛe no yiye no.

Sɛnea Wobɛpaw System Voltage

• 12V:abu so wɔ DC nhyehyɛe nketewa ne mobile application ahorow a ɛnyɛ den mu.
• 24V:wɔtaa de di dwuma wɔ medium mobile systems, cabins, po so nhyehyɛe, ne inverter nketewa a wɔde si hɔ mu.
• 48V:abu so wɔ nhyehyɛe akɛse a ɛgyina hɔ mu efisɛ tumi koro no ara tumi de ma wɔ current a ɛba fam sen 12V anaa 24V.

Voltage yɛ adansi ho gyinaesi. Ɛsɛ sɛ batere, inverter, charge controller, ahobammɔ mfiri, conductors, nkitahodi, ne direct-current loads biara hyia. Nhyehyɛe akɛse nso betumi de atirimpɔw-ayɛ adi dwumahigh-voltage battery a wɔde sie ahoɔden, a ɛnsɛ sɛ wobu no sɛ 48V DIY sikakorabea ntrɛwmu a ɛnyɛ den.

Hwɛ Inverter Tumi, Starting Surge, ne BMS Anohyeto ahorow

Battery bank betumi anya kWh a ɛdɔɔso na ɛda so ara ntumi mfi ase anaasɛ entumi mfa mfiri a ɛho hia no nni dwuma. Tumi na ɛkyerɛ bere a wɔde tu mmirika. Tumi ne mprempren anohyeto ahorow na ɛkyerɛ sɛ ebia nhyehyɛe no betumi asom adesoa no koraa anaa.

Hwɛ Tumi a Ɛkɔ So

Fa nnesoa a ebetumi ayɛ adwuma bere koro mu no ka ho. Ɛsɛ sɛ inverter no AC a ɛkɔ so no boro saa ahwehwɛde a wɔhwɛ kwan no so wɔ ɔhyew ne adwumayɛ tebea a ɛfata mu.

Bu battery-afã mprempren ho akontaa denam:

DC current (A) ≈ AC adesoa ahoɔden (W) ÷ battery ahoɔden (V) ÷ inverter ahoɔden

Sɛ nhwɛso no, 4,000 W AC adesoa a wɔde fi 48V batere mu denam inverter a ɛyɛ adwuma yiye 92% so de ma no hwehwɛ sɛ:

4,000 ÷ 48 ÷ 0.92 ≈ 90.6 A

Ɛsɛ sɛ wɔyɛ battery bank, BMS, busbars, cables, fuses, disconnects, ne terminals nyinaa ma current a ɛfata.

Hwɛ Motor ne Compressor Starting Surge

Ebia abura pɔmpɛ, frigye, frigye, mframa a wɔde yɛ adwuma, adwumayɛbea nnwinnade, ne mframa a wɔde hyɛ mu no bɛtwe ahoɔden pii kɛse bere a wɔrefi ase no sen bere a wɔreyɛ adwuma sɛnea ɛsɛ. Hwɛ:

• Inverter surge ahoɔden
• Bere tenten a wɔma ho kwan sɛ wɔde surge di dwuma
• Battery BMS peak-mprempren anohyeto ne bere tenten
• Voltage a ɛkɔ fam bere a wɔrefi ase no
• Conductor ne ahobanbɔ-mfiri ratings
• Sɛ́ ebia nnesoa pii betumi afi ase bere koro mu anaa

Dodow a ɛsen biara a enni bere tenten no nnɔɔso. Ebia nhyehyɛe bi a ebetumi ama ahoɔden a ɛkorɔn yiye aba sekan fã ketewaa bi mu no da so ara rentumi mfi mfiri a ehia sɛ wɔma ahoɔden a ɛkɔ soro no ase wɔ sikani pii mu.

Hwɛ Battery BMS ne Parallel Anohyeto ahorow

Wɔ module biara a wɔahyɛ ho nyansa no mu no, hwɛ sɛnea ɛsen biara a ɛkɔ so yi nsuo, peak discharge current, peak bere tenten a wɔama ho kwan, maximum charge current, inverter range a wɔkamfo kyerɛ, maximum parallel count, wiring nhyehyeɛ a wɔapene so, ne nkitahodiɛ a ɛne ne ho hyia.

Parallel modules nkyɛ mprempren pɛpɛɛpɛ bere nyinaa. Cable tenten, terminal resistance, ɔhyew, tebea a charge, ne module tebea betumi aka mprempren kyɛfa. Fa busbar a ne yɛfo no apene so anaasɛ wiring nhyehyɛe a ne tenten yɛ pɛ-di dwuma.

Bu Battery Module Count ne Recharge Tumi ho akontaa

Bu Battery Modules Dodow ho akontaa

Sɛ wohu tumi a wɔde frɛ ade a wɔhwehwɛ no wie a:

Module dodow=a ɛhwehwɛ sɛ wɔde din tumi di dwuma ÷ tumi a wɔahyɛ no agyirae wɔ module biara a ɛne no hyia biara mu

Kwansin so kɔ module nhyehyɛɛ mũ-a wɔapene so.

Sɛ nhyehyeɛ no hwehwɛ 14.2 kWh na module baako a ɛne no hyia a wɔahyɛ sɛ ɛyɛ 5.12 kWh a:

14.2 ÷ 5.12 = 2.77

Enti tumi akontabuo no hwehwɛ anyɛ yie koraa no module mmiɛnsa, a ɛma ahoɔden a wɔahyɛ da ayɛ 15.36 kWh. Ɛsɛ sɛ nea etwa to a wɔpaw no da so ara twa tumi, BMS, parallel, inverter, voltage, nkitahodi, ne instɔlehyɛn nhwehwɛmu ahorow no mu.

Hwɛ Sɛnea Wobetumi Asan Ahyɛ Batere no Ntɛmntɛm

Di kan bu ahoɔden a ɛsɛ sɛ wɔsan de kɔ batere no mu ho akontaa:

San fa ahoɔden hyɛ battery no mu ≈ battery ahoɔden a wɔayi afi mu ÷ chargeing efficiency

Afei bu bere a eye sen biara-case chargeing ho akontaa:

Bere a wɔde bɛsan ahyɛ mu ( nnɔnhwerew) ≈ ahoɔden a wɔsan de hyɛ mu (kWh) ÷ sɛ wɔkyekyem pɛpɛɛpɛ a, ahoɔden a wɔde gye batere (kW) .

Wɔ owia-charged system ho no, mfa array nameplate tumi nni dwuma te sɛ nea ɛwɔ hɔ daa. Hwɛ ɔsram biara anaa bere mu nneɛma a wɔhwɛ kwan, awia adesoa, clipping, shading, ɔhyew, ne charge-controller anohyeto. NoNREL PVWatts Nkontaabu a Wɔde Bu Nkontaabubetumi ama beae-gyinaso akontaabu a ɛfa photovoltaic ahoɔden a wɔyɛ ho ama saa nhwehwɛmu anammɔn yi.

Sɛ wopɛ sɛ wɔyɛ off-grid nhyehyɛe a, ɛsɛ sɛ owia ahoɔden a wɔhwɛ kwan sɛ wɔbɛyɛ no kata awia adesoa ne ahoɔden a ɛho hia na wɔde asan de batere no aba bere a wɔabɔ no awie no nyinaa so. Sɛ batere no ntumi nnya ahoɔden ansa na owia bere a edi hɔ a enye-aba a, nneɛma a wɔkora so a ɛkɔ soro nkutoo rentumi nni ahotoso ho haw no ho dwuma.

Owia Batere Bank Kɛse Ho Nhyehyɛe

Chart a edidi so yi de da koro ahofadi, battery fã a wotumi de di dwuma 90%, delivery efficiency 92%, ne design margin 10% di dwuma. Ɛyɛ nhwɛso nkutoo.

Nsusuwii biara a wɔsakra no sesa nea efi mu ba no. Fraction a wotumi de di dwuma a ɛba fam, adwumayɛ a ɛba fam, ahofadi bere tenten, anaasɛ margin kɛse ma tumi a wɔfrɛ no din a wɔhwehwɛ no kɔ soro.

Adwuma Solar Battery Sizing Nhwɛso ahorow

Nhwɛsoɔ 1: Off-Grid Cabin ketewa

Fa no sɛ:

• Da biara da adwini adesoa: 2.8 kWh
• Ahofadi: Nnafua 1.5
• Battery no fã ketewaa bi a wotumi de di dwuma: 90% .
• Nneɛma a wɔde ma no yiye: 92% .
• Nsusuwii a wɔde yɛ adwuma: 10% .

Nneɛma a wɔhwehwɛ sɛ wɔde di dwuma wɔ din mu=2.8 × 1.5 × 1.10 ÷ 0.90 ÷ 0.92 ≈ 5.58 kWh

Wɔ 24V a wɔfrɛ no 24V mu no:

5.58 × 1,000 ÷ 24 ≈ 233 Ah

Anamɔn a edi hɔ ne sɛ wobɛpaw module nhyehyɛe a wɔapene so a ɛboro 5.58 kWh na woahwɛ sɛ inverter, battery current anohyeto, ne seasonal charging source betumi aboa cabin no adesoa.

Nhwɛso 2: Ofie Backup a Ɛho Hia

Fa no sɛ adesoa a wɔabɔ ho ban no yɛ kW 1.2 na ɛsɛ sɛ ɛyɛ adwuma nnɔnhwerew awotwe.

Adesoa ahoɔden a wɔhwehwɛ=1.2 kW × nnɔnhwerew 8=9.6 kWh

Sɛ wode 90% fã a wotumi de di dwuma, 92% delivery efficiency, ne 10% margin di dwuma a:

Nneɛma a wɔhwehwɛ sɛ wɔde di dwuma wɔ din mu=9.6 × 1.10 ÷ 0.90 ÷ 0.92 ≈ 12.75 kWh

Saa aba yi di ahoɔden runtime ho dwuma. Ɛnkyerɛ sɛ battery ne inverter no betumi afi motor a ɛsõ sen biara no ase anaasɛ ɛboa adesoa a ɛsen biara bere koro mu.

Nhwɛsoɔ 3: Efi Adesoa Table a Wɔasusu so kɔsi Module Count so

Sɛ wode adesoa a wɔasusuw ho mfonini a ɛwɔ atifi hɔ no di dwuma a:

• Da biara da ahoɔden a ɛho hia-adesoa ahoɔden: 3.71 kWh
• Ahofadi: Nnafua 1.5
• Battery no fã ketewaa bi a wotumi de di dwuma: 90% .
• Nneɛma a wɔde ma no yiye: 92% .
• Nsusuwii a wɔde yɛ adwuma: 10% .

Nneɛma a wɔhwehwɛ sɛ wɔde di dwuma wɔ din mu=3.71 × 1.5 × 1.10 ÷ 0.90 ÷ 0.92 ≈ 7.39 kWh

Sɛ battery module a wɔapene so no yɛ 5.12 kWh a:

7.39 ÷ 5.12=1.44 module ahodoɔ

Anyɛ yiye koraa no, nhyehyɛe no hia module abien sɛnea tumi te, ma 10.24 kWh nominal. Ansa na wobɛgye saa nhyehyeɛ no atom no, hwɛ sɛ mmienu-module continuous current, startup surge, charging current, parallel approval, ne inverter nkitahodi no yɛ nokware.

Batere a Ɛyɛ KWh 10 Bedi Bere Bɛn?

Bere a wɔde tu mmirika no gyina ahoɔden a wotumi de di dwuma a wɔde kɔ adesoa ahorow no so, na ɛnyɛ nea wɔde frɛ no nko. Sɛ wowɔ 10 kWh nominal battery, 90% a wotumi de di dwuma fã, ne 92% delivery efficiency:

AC ahoɔden a wɔde di dwuma ≈ 10 × 0.90 × 0.92=8.28 kWh

Saa gyinapɛn yi fa no sɛ adesoa a ɛkɔ so daa na ɛnka ɔhyew a ɛba fam, onyin, BMS akorae, anaa nnwinnade-anohyeto pɔtee bi ho.

LiFePO4 vs. Lead-Acid Batere Sikakorabea Kɛse

Battery chemistry nya sɛnea tumi a wɔfrɛ no, discharge rate, charge ahwehwɛde, nsiesie, ne installation tebea horow kyerɛ ase kɔ system adwumayɛ a wotumi de di dwuma mu so nkɛntɛnso. Sɛ wopɛ ntotoho a ɛtrɛw a, san hwɛ eyinom mubattery ahorow ahorow a wɔde sie ahoɔden.

Wɔ lead-acid battery ho no, fa nea ɔyɛe no discharge curves ne rated-hour capacity di dwuma. Ah nsakraeɛ a ɛnyɛ den wɔ nominal voltage betumi aka ahoɔden a ɛwɔ hɔ a ɛboro so bere a discharge current no yɛ kɛse.

Mfomso a Ɛtaa Ba wɔ Owia Batere Kɛse Ho

• Bere a wɔde bɛbɔ ho mprenu:sɛ adesoa ahoɔden no yɛ kWh dedaw a, mfa nnɔnhwerew a wode bɛkora so no mmɔ ho bio.
• KW ne kWh a wɔde frafra:ahoɔden a wɔde asie ne tumi a wotumi de ma no yɛ nsɛm a wɔakyerɛkyerɛ mu a ɛsono emu biara.
• Ofie mu nneɛma a wɔde di dwuma nyinaa a wɔde bedi dwuma de ayɛ backup a ɛho hia:kɛseɛ firi adesoa a wɔabɔ ho ban mu berɛ a nhyehyɛɛ no ​​nyɛ whole-home backup.
• Sɛ wɔde din krataa watt di dwuma sɛ nea wɔde di dwuma sɛ wɔkyekyem pɛpɛɛpɛ a:sakre so mfiri taa de ahoɔden kakraa bi na edi dwuma sen sɛnea nea ɛde ba kɛse no kyerɛ.
• Bu a wobu ani gu standby consumption so:adesoa a ɛkɔ so yɛ 40 W no di 0.96 kWh da biara.
• Sɛ wode akwantuo a ɛkɔ baabiara-kwantuo yie di dwuma wɔ ɔkwan baako-kwan so akontabuo mu a wonhwɛ:fa efficiency value no hyia ahoɔden kwan a wɔrebu ho akontaa no.
• Sɛ wobu ani gu motor-fi ase surge so:kWh a ɛdɔɔso no nkyerɛ sɛ pɔmpɛ anaa compressor befi ase yiye.
• Nsusuwii a wɔreyɛ ama afe afe-owia tebea a wɔkyekyem pɛpɛɛpɛ:off-grid ahotosoɔ taa yɛ nea bere a ɛnyɛ papa koraa na ɛhwɛ so.
• Sɛ yɛfa no sɛ wobetumi de batere aka ho akyiri yi bere nyinaa:ntrɛwmu no betumi ayɛ nea mfe a obi adi, tebea a wɔde tua ho ka, firmware, nkitahodi, inverter anohyeto, anaa nea ɔyɛe no nhyehyɛe na asiw ano.
• Bere a wɔde recharge bere a wobu ani gu so:batere a entumi nsan nyɛ adwuma ansa na bere a edi hɔ no aba no nyɛ nea wɔayɛ no sɛnea ɛbɛyɛ a ebetumi agyina ano.

Ahobammɔ, Nea Ɛka Ho, ne Ɔkwan a Wɔfa so Yɛ Nsɛmma Nhoma

Saa asɛm yi de akontaabu nhyehyɛe a edi kan a wɔde bɛtoto batere ahoɔden a wɔhwehwɛ ho ma. Ɛnyɛ anyinam ahoɔden nhyehyɛɛ mfonini, instɔlehyɛn nwoma, mmara-compliance nhwehwɛmu, anaa adeɛ a wɔde besi adeɛ-mfiridwuma pɔtee ananmu.

Akontaabu kwan no tetew adesoa ahoɔden, adesoa ahoɔden, tumi a wɔfrɛ no, tumi a wotumi de di dwuma, nneɛma a wɔde ma no yiye, ne nhyehyɛe a wɔde yɛ adwuma no mu sɛnea ɛbɛyɛ a wobetumi ahwɛ nsusuwii biara. Nhwɛso ahorow a wɔayɛ ho adwuma da wɔn nsusuwii ahorow adi na ɛnsɛ sɛ wobu no sɛ amansan nyinaa nneɛma ho nyansahyɛ ahorow.

Ɛsɛ sɛ obi a ɔfata a onim mpɔtam hɔ anyinam ahoɔden, adan, ne ogya ho ahwehwɛde ahorow a ɛfata na ɔhwɛ nnwinnade a etwa to a wɔpaw ne nea wɔde besisi hɔ no mu. Wɔ United States no, UL kyerɛkyerɛ mu saaUL 9540 hwehwɛ ahoɔden a wɔkora so nhyehyɛe ne nnwinnade mu sɛ nhyehyɛe a wɔaka abom, a batere, ahoɔden a wɔsakra, nea wɔde di dwuma, ahobammɔ, ne nkitahodi ka ho.

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