mAh yɛɛ adwuma yiye maa ɛlɛtrɔnik mfiri a wɔde di dwuma. Wɔ industrial motive power procurement mu no, ɛhɔ na specification haw dodow no ara fi ase. Fomula no ne mfimfini sukuu akontabuo: Wh=mAh × V ÷ 1000. Asɛm no ne deɛ V kyerɛ ankasa berɛ a wɔn a wɔde nneɛma ma ahodoɔ de nɔma ahodoɔ redi dwuma, na saa akontabuo no tumi bɛpaapae bɛboro 20%.
Na cold storage client afe a etwaam no de quotes abiɛsa brɛɛ yɛn de hwɛɛ sɛ ɛyɛ nokware. Saa ara na edin spec: 48V 460Ah forklift batere. Ná nneɛma bo fi dɔla 4,200 kosi dɔla 6,800. Ná ɔpɛ sɛ ohu sɛ ebia nea ne bo yɛ den no retetew ne ho anaa.
Meka kyerɛɛ no sɛ ɔnbisa 0.5C discharge curves mfi abiɛsa no nyinaa hɔ na ɔnhwɛ voltage akenkan no wɔ 50% SOC. Baako kyerɛɛ 51.2V, baako kyerɛɛ 48V, nea ɛtɔ so mmiɛnsa no antumi annyɛ data no koraa. Mmienu a edi kan a wɔn baanu nyinaa ka sɛ 460Ah no, na ɛsono bɛyɛ 1,500Wh bere a wubuu ho akontaa ankasa no. Na $4,200 a wɔkae no na ɛbɔɔ ka kɛse sen biara wɔ ahoɔden ankasa a wɔde mae biara ho.
Dɛn460Ah na ɛwɔ hɔNokwarem no, ɛkyerɛ wɔ asɛm bi a wɔafa aka so
LiFePO4 cell adwumayɛ ahoɔden no tu mmirika bɛyɛ 2.5V kosi 3.65V. 48V nhyehyɛe hia nkwammoaa 15 a ɛtoatoa so, enti pack voltage ankasa dan fi 37.5V kosi 54.75V. Battery koro, Ah rating koro, Wh soronko koraa a egyina baabi a wosusuw so.
| SOC Ɔman no | Nhyehyɛe no mu Voltage | 460Ah Wɔadan no Wh |
|---|---|---|
| Ka a wɔbɔ no nyinaa | 54.75V | 25,185 |
| Mfinimfini-nsɛm | 51.2V | 23,552 |
| Edin mu asɛm | 48V | 22,080 |
| Ɛbɛn cutoff | 40V | 18,400 |
Ebinom suppliers quote wɔ nominal voltage, ebinom wɔ mid-point, ebinom kyerɛw Ah nɔma kɛkɛ na wɔma wo guess. Polinovel specs de mid-point voltage di dwuma daa. FL51460 no kɛse bɛyɛ 23,500Wh. Fa toto akansifoɔ a ɔde 48V nominal math a ɛkyerɛ 22,080Wh di dwuma ho no, yɛhwɛ sɛ ne boɔ yɛ den. Ebia ahoɔden ankasa a wɔde ma no bɛyɛ pɛ anaasɛ yɛn bo yɛ mmerɛw mpo.
Sɛnea wobɛhwɛ sɛ ɛyɛ nokware:Nya discharge curve raw data fi wo suppliers hɔ. Kenkan voltage wɔ 50% SOC. Dane quotes nyinaa kɔ voltage baseline koro no ara so ansa na wode unit bo atoto ho. Ɔdetɔnfo bi a ontumi nyɛ curves nso nsɔ nhwɛe anaasɛ n’ani nnye nea efii mu bae no ho. Ɔkwan biara so no, ɛfata sɛ wususuw nea ɛno kyerɛ ma fekubɔ no ho.
Adetɔ Bo Yɛ Afotu no Kɛkɛ
Lead-acid adetɔ su wuwu denneennen. Hwɛ initial unit cost ne cycle count, yɛ spreadsheet, paw nɔma a ɛba fam koraa. Wɔ lithium ho no, saa akontaabu no yera dodo.
Yɛadi sika a wɔsɛee ankasa ansa na wɔayɛ nsakrae ne bere a wɔasesa akyi wɔ afɛfo mmeae pii no akyi. Adekoradan biako a ɛyɛ abien-shift a ɛde lɔre 20 reach wɔ lead-acid so. Ɛka a ahintaw a wɔanhu da sɛ wɔresoa:
Nsuo a wɔde siesie.
Simma 15-20 wɔ batere biara mu dapɛn biara. 40 batere nyinaa. Ɔsram biara adwumayɛfo bo bɛboro dɔla 800 wɔ ɛno nkutoo so. Wɔasie no wɔ adekoradan a ɛwɔ soro no nyinaa mu, wɔankyerɛw no nsɛm biara da.
Sesa bere.
Lead-acid ntumi nyɛ shift a edi mũ, enti mid-shift battery sesa. Swap biara tu mmirika 30+ simma. Nsakrae abien da biara kyerɛ sɛ wɔbɛsesa nneɛma abien. Lɔre biako, dɔnhwerew biako da biara a wɔsesa batere kɛkɛ. Lɔre aduonu, nnipa- nnɔnhwerew aduonu. Fa adwuma nnafua 22 ne w’adwumaden dodow bɔ ho.
Afe 3 ɔbotan no.
Lead-acid a cycled wɔ 50% DoD fi ase hwe ase fi ɔbotan bi so bɛyɛ afe abiɛsa. Adetɔ de totoo "cycle life" nɔma ho bere a wɔtɔɔ no. Supplier kae sɛ 2,000 cycles. Real-wiase nyaa ebia 1,400 ansa na wɔresesa.
Eyinom mu biara nna adi wɔ asɛm a wɔafa aka no so.
Polinovel FL51420 du lɔre batere boa hokwan charge. Simma aduonu a wɔde di awia aduan no ma nsu a ɛdɔɔso ka ho de wie da no. Swap nhyehyɛe no ayi afi hɔ. Nsuo a wɔde gugu so no nni hɔ. Mfitiaseɛ a wɔde gye no yɛ kɛseɛ sene lead-acid deɛ. Sɛ́ ebia ebetua ka no gyina wo dwumadi nhyehyɛe pɔtee no so.
Bere Bɛn na Ɛtua Ka Ankasa
Asram 14-18 nnwuma nɔma no nkyerɛ hwee efisɛ ɛsono adwumayɛ biara.
Bu wo de ho akontaa:
(Ɔsram biara nsuo adwumayɛfo nnɔnhwerew × dɔnhwerew biara rate) + (Swap events × bere wɔ swap biara mu × dɔnhwerew biara rate) + (Ɔsram biara kWh a wɔde di dwuma × efficiency gap × anyinam ahoɔden rate)=Ɔsram biara hidden cost
LFP a wɔde gye sika ÷ Ɔsram biara a wɔde asie ka=Ɔsram a wɔde tua ho ka
Concrete scenario: lɔre 20, shift abien, $28/dɔnhwerew adwumayɛfo, $0.11/kWh anyinam ahoɔden. Sɛ yɛgyina client data a yɛadi akyi so a, bosome biara hidden cost no kɔ $4,200 kɔsi $5,800 a egyina swap frequency ne charging patterns so.
Battery premium biara a ɛyɛ $3,500 sen mid-tier lead-acid, mpɛn 20 units, yɛ $70,000 a wɔde bɛto mu a ɛkɔ soro. Sɛ wɔde $5,000 a wɔkora so ɔsram biara kyekyɛ mu a, akatua hits at month 14. Adwumayɛfo dodow a ɛkɔ soro, anyinam ahoɔden bo a ɛkɔ soro, nsakrae a wɔtaa sesa, ebia wubehu ɔsram 12. Dodow a ɛba fam no piapia no kɔ akyiri.
Wo nkutoo na wunim wo nɔma ankasa. Wo nkutoo na wubetumi ayɛ saa akontaabu yi ama wo oprehyɛn no.
Bigger Capacity Ɛnyɛ Insurance, Ɛyɛ Afiri
Lead-acid logic se tɔ battery kɛseɛ a ɛfata. Gyae baabi ma margin. Saa adwene no san kɔ LFP akyi.
Lithium iron phosphate nyin ntɛmntɛm bere a ɔte tebea a ɛyɛ den mu no. Wo spec 40% oversized, da biara da adwumayɛ nkutoo de 60% tumi di dwuma, battery floats wɔ high-voltage asasesin mu daa. Afe a edi kan no hwɛ yiye. Afe a ɛto so abien no, ɔsɛe kɔ so ntɛmntɛm. Afe a ɛto so abiɛsa no, ɛhwe ase. Ewu ntɛm sen sɛnea anka batere a ne kɛse teɛ bɛyɛ.
Sizing a ɛfata yɛ adwuma kɔ akyi fi ahoɔden a wɔde di dwuma ankasa, de ɔhyew nteɛso di dwuma, C-rate nteɛso, onyin margin, du botae tumi. Nneɛma a wɔde teɛteɛ nneɛma a wɔde sie awɔw mu no yɛ soronko koraa wɔ adekoradan a atwa ho ahyia ho. High-cycle AGV applications de akontabuo foforɔ di dwuma koraa.
Nsɛm a ɛwɔ ha no fa Polinovel mu sɔhwɛ data ne osuahu curves a ɛnfata wɔ baguam asɛm bi mu. Sɛ woanya adwuma pɔtee bi a wɔresusuw ho a, fa adwumayɛ parameters no kɔ na yɛbɛma sizing recommendation a wɔde asi wɔn ani so.
Nea Ɛsɛ sɛ Wo Supplier no Nwoma Ka Ho
Nneɛma a wɔde gu mu no curves.Anyɛ yiye koraa no abiɛsa: 0.2C, 0.5C, 1C. Kyerɛ sɛnea voltage yɛ n’ade wɔ adesoa dodow ahorow ase.
Ɔhyew adwumayɛ ho nsɛm.Tumi a wɔkora so fi -20 digrii kosi +60 digrii . Sɛ́ wobɛtu mmirika akɔkora nneɛma a ɛyɛ nwini mu a wonhwɛ saa nhyehyɛe yi mu yiye no kyerɛ sɛ awɔw bere a emu yɛ den da w’anim.
Cycle nkwa sɔhwɛ amanneɛbɔ ahorow.Ɛsɛ sɛ ɔka sɔhwɛ tebea horow: ɔhyew, DoD ɔha biara mu nkyem, charge/discharge rate. Ebinom a wɔde nneɛma ma no ka sɛ 4,000 cycles nanso sɔhwɛ tebea horow no yɛ 25℃, 50% DoD, 0.3C. Biribiara nni hɔ a ɛte sɛ wo dwumadibea ankasa.
UN38.3 akwantuo ho adansedie.Mfitiase ahwehwɛde.
Polinovel de manea yɛaka ho asɛm wɔ atifi hɔ no nyinaa sɛ gyinapɛn. Sɛ wɔn a wɔde nneɛma ma a woretoto ho mprempren no ntumi nyɛ nkrataa a ɛne no sɛ a, susuw nea saa nsonsonoe no kyerɛ ho.
Anamɔn a Edi Hɔ
Polinovel ayɛ mfiridwuma mu motive power batteries fi afe 2012. Forklifts, AGVs, golf teaseɛnam, wimhyɛn gyinabea asase so mmoa mfiri. Yenim baabi a lithium mfaso horow no da adi pefee ne baabi a ebia nsakrae no rensɛ.
Sɛ wowɔ adwuma pɔtee bi a wɔresusuw ho a, fa wo shift nhyehyɛe, mprempren swap frequency, maintenance hour records mena sɛ woanya bi a. Yɛbɛyɛ sizing analysis a wɔde nsusuiɛ ne akontabuo a wɔahyehyɛ no pefee. W’ankasa wubetumi ahwɛ sɛ nɔma ahorow no yɛ nokware.
Mpɛn pii no, nhwehwɛmu gye bɛyɛ dapɛn biako. Sɛ́ ebia wubewie a wobɛpaw yɛn ade no anaasɛ worenpaw no, wubenya gyinaesi nhyehyɛe a wubetumi abɔ ho ban wɔ sikasɛm ne adwumayɛ ho.
