Series Versus Parallel Battery Nkitahodi: Mfiridwuma ne Adetɔ Akwankyerɛ 2026

Nea Ɛnkɔ yiye Ankasa Ne Wiring no Da

Wiring no ne ɔfã a ɛyɛ mmerɛw. Positive to negative ma voltage kɔ soro, positive to positive ma tumi kɔ soro, na anyinam ahoɔden ho nimdefo biara a ɔwɔ wo fam betumi ayɛ nhyehyɛe abien no mu biara yiye wɔ mmɔden a edi kan no mu. Nea ɛma series versus parallel battery connection decision no yɛ nea efi mu ba wɔ motive power mu ne sɛ akwan abien no nyinaa tumi de kilowatt- nnɔnhwerew koro no ara ma wɔ krataa so, na nsonsonoe a ɛda wɔn ntam no mpue bere a wɔrehyɛ adwuma no. Ɛpue wɔ baabi wɔ afe abien anaa afe abiɛsa mu, sɛ bere a wɔde tu mmirika a wotumi de di dwuma a wɔhwere a wontumi nkyerɛkyerɛ mu, pack a enyin ntɛmntɛm sen ne nuanom, anaasɛ BMS a efi ase hwe ase wɔ adwuma bi a odii ho dwuma yiye bere a na po so ahyɛn no yɛ foforo no ase.

Saa akyɛde no ne ɔhaw no nyinaa. Edu bere a sɛnkyerɛnne no bɛda adi no, wɔde weld topology no ahyɛ mfiri no mu, wɔatwa cable runs no, wɔatɔ chargers no, na ɛka a wɔbɔ wɔ gyinaesi no a wɔbɛdan no ho no yɛ fleet-wide retrofit. Enti asɛmmisa a mfaso wɔ so no nyɛ nhyehyɛe bɛn na ɛde voltage ka ho na nea ɛde tumi ka ho. Ɛyɛ nhyehyɛe bɛn na wo mfiri, wo shift nhyehyɛe, ne wo nsiesie tumi da so ara betumi atra ase wɔ kyinhyia mpem abiɛsa akyi.

Nneɛma Anum a Ɛsakra, ne Anum Pɛ

Ansa na wobɛkɔ baabiara a mfaso wɔ so no, ɛfata sɛ wobɛmia nkyerɛkyerɛmu a wɔahyɛ da ayɛ no so ayɛ no biribi a wubetumi ahwehwɛ pɛnkoro na woagyae akenkan bio. Biribiara a series versus parallel battery connection sesa no hwe ase wɔ dimensions anum mu.

Ahoɔden a ɛwɔ hɔ nyinaa yɛ pɛ wɔ ɔkwan biara so ma pack dodow koro no ara, na ɛno nti na akontaabu no nkutoo renkyerɛ wo nea ɛsɛ sɛ woyɛ da no. Ntrɛwmu abien a etwa to no ne baabi a gyinaesi no te ankasa, na ɛyɛ nkyerɛwde abien a adetɔfo-hyia ntotoho a ɛfa battery series ne parallel wiring ho taa de nsa-asorɔkye twam. Nkwammoaa dodow ne nnuruyɛ de nea aka no si hɔ: 48V LiFePO4 platform si fam wɔ nkwammoaa dunum kosi dunum a ɛtoatoa so, a ɛfata sɛ wuhu ansa na woafi ase asusuw sɛnea pack dodow a ɛtra saa hama no ho no ho. Sɛ woda so ara resiesie voltage platform no ankasa a, voltage ne capacity targets a ɛwɔ custom pack akyi no ne upstream gyinaesi.

Nea Enti a Voltage a Ɛkorɔn taa Di Nkonim wɔ Motive Power mu

Wɔ nneɛma a wɔde di dwuma ne mfiridwuma kar ahorow ho no, mmuae a wɔakari a ɛtoatoa so-no yɛ nokware mpɛn pii sen sɛ ɛnte saa, na nea enti a ɛte saa ne conduction loss mmom sen biribiara a ɛfa battery no ho.

Nkontaabu a ɛwɔ aseɛ ha no fi abusuabɔ mmienu mu sene sɛ wɔbɛsusu wɔ sɔhwɛ benkyi so, enti nsusuiɛ no ho hia: ɛkura mprempren ne tumi a wɔde ama sɛ dodoɔ a wɔahyɛ ato hɔ, ɛfa conductor ne termination resistance sɛ daa, na ɛbu n’ani gu nkɛntɛnsoɔ a ɛtɔ so mmienu-order a ɔhyeɛ nya wɔ resistance so. Wɔ saa nnyinaso no so no, ahoɔden a ɛyɛ voltage ne current no aba no kyerɛ sɛ 9.6 kW twetwe wɔ 48V twetwe bɛyɛ 200A, bere a 9.6 kW koro no ara wɔ 24V twetwe bɛyɛ 400A. Conduction loss scales ne square of current, enti current a wɔbɔ mmɔho abien ma tumi koro no ara a wɔde ma no bɛyɛ sɛ ɛhwere adehwere a ɛwɔ conductor, lug, contactor, ne fuse holder biara a ɛwɔ pack ne motor no ntam no mmɔho anan. Fa adesoa koro no ara fi 48V kɔ 80V platform na current so tew bɛyɛ ɔha biara mu nkyem 40, a ɛtew conductor loss so bɛyɛ nkyem abiɛsa mu abien-. Saa ahoɔden no nyera. Ɛbɛyɛ ɔhyew wɔ terminations, a ɛyɛ baabi pɔtee a connection resistance te ne baabi a enyin bere kɔ so.

Nea efi mu ba a mfaso wɔ so no nyɛ fɛ na ne bo yɛ den. Conductors a emu yɛ duru no bo yɛ den, emu duru dɔɔso, na ɛyɛ den sɛ wɔbɛfa batere dan a ne kɛse atwa kɔbere-acid birikisi ho ahyia mu. Contactors a ɛsakra mprempren a ɛkorɔn no hyɛ ntɛmntɛm. Na voltage sag ase peak load bites tẽẽ kɔ adwumayɛ mu: wɔ counterbalance lɔre, ntease voltage drop bere a heavy lift kyerɛ ase brɛoo lift, a nea ɔde di dwuma no hu sɛ lɔre no te nka sɛ wabrɛ bere tenten ansa na biribiara akyerɛw sɛ mfomso. Eyi ne ade titiriw nti a series versus parallel battery connection ma forklift ne AGV nhyehyɛe taa siesie kɔ series fã no wɔ ahoɔden a ɛyɛ pɛ mu. Ɛno nso nti na...48V ne 80V platforms a ɛwɔ yɛn anyinam ahoɔden forklift batere akyiwɔasisi no atwa nhama atenten a ɛtoatoa so ho ahyia sen sɛ wɔbɛkyekyere bankye a ɛtrɛw a ɛne ne ho di nsɛ.

Nokwarem no, anohyeto bi wɔ hɔ. Series nhama no yɛ nea wɔde nea wɔde ahyɛ mfiri no controller, contactors, ne insulation system no mu, ahobammɔ nniso a ɛyɛ adwuma wɔ DC voltage ahorow bi so, ne nokwasɛm a ɛyɛ sɛ ahama biako kyerɛ sɛ ɛyɛ huammɔdi biako no na ɛhyɛ so. Ɛno de asɛmmisa a obiara nni saa ahunmu yi mmua tẽẽ no ba.

Asɛmmisa a Obiara Mmua: Pack Ahe na Wubetumi De Atoto Ho?

Bisa obi a ɔde nneɛma ma na mpɛn pii no wubenya nɔma, anan, ɛtɔ mmere bi a awotwe, a nkyerɛkyerɛmu biara nka ho. Saa dodow no reyɛ nnwuma abien prɛko pɛ: ne fã bi yɛ mfiridwuma anohyeto na ne fã bi yɛ warranty hye. Sɛ́ wobɛfa no sɛ abɔde mu nneɛma ho nimdeɛ bere a ɛyɛ nhyehyɛe, anaasɛ sɛ́ nhyehyɛe bere a ɛyɛ abɔde mu nneɛma ho nimdeɛ no ne sɛnea po so ahyɛn ahorow no kowie sikakorabea ahorow a na ɛrenyɛ adwuma da nkyɛn.

Fi ase denam adwene a ɛyɛ basaa bi a ɛkame ayɛ sɛ epue wɔ asɛm biara a ɛfa asɛmti yi ho mu no so. Akontaabu a wɔn a wɔde nkwammoaa ma no faa mu kɛse sɛ pairing criteria, voltage nsonsonoe wɔ 10 mV mu, emu resistance nsonsonoe wɔ 5 mΩ mu, tumi nsonsonoe wɔ 20 mAh mu, kyerɛkyerɛ mucell sorting wɔ production line no sobere a worepaw nkwammoaa a ɛkɔ pack biako mu no. Wɔnyɛ afuw mu aboboano a wɔde bɛka pack abien a wɔawie no bom, na pack a wɔawie no rentra 10 mV mu da wɔ foforo ho wɔ dapɛn biako a wɔde ayɛ adwuma akyi. Sɛ wɔde production tolerance di dwuma wɔ commissioning adwuma bi mu ne nea enti a po so ahyɛn binom de ba awiei, wɔ ɔkwan a ɛnteɛ so, sɛ paralleling ntumi nyɛ yiye.

Afuw anohyeto no nyɛ nea ɛkɔ so daa koraa. Wɔabu akontaa, na akontaabu no yɛ tiawa a wobetumi ayɛ wɔ clipboard so.

Inrush current wɔ bere a nkitahodi no yɛ pɛ voltage nsonsonoe a ɛda nhama a ɛba ne bɔs no ntam, a wɔakyekyɛ mu denam loop no resistance nyinaa so. Esiane sɛ total resistance no hwe ase bere a wɔde nhama pii ka ho nti, asɛm a enye koraa no yɛ kɛse wɔ pack biara a wode bɛka ho no mu, ɛno nti pɛpɛɛpɛ na ɛsɛ sɛ wɔhwɛ ratings no de toto asɛm a enye koraa no ho sen sɛ wɔbɛhwɛ pack abien-pack case no (Orion BMS na ɔkyerɛwee).

Wɔde nɔma yɛɛ adwuma, maa 48V 300Ah pack abien: fa no sɛ bɛyɛ 15 mΩ mu resistance wɔ pack biara mu ne 5 mΩ wɔ cabling ne terminations nyinaa so, na ɛma bɛyɛ 35 mΩ twa loop no ho hyia. Sɛ binding constraint no yɛ contactor, ka sɛ 300A inrush rating a, anka voltage nsonsonoe a wɔma ho kwan no bɛyɛ bɛyɛ 10V, a ɛyɛ mmuae a mfaso nni so a wɔma ho kwan. Ɛkame ayɛ sɛ bere nyinaa na binding constraint no yɛ battery mmom: cap mutual charging wɔ 0.2C, anaa 60A ma 300Ah pack, na nsonsonoe a wɔma ho kwan no kɔ fam bɛyɛ 2V. Hyɛ no nsow sɛ 0.2C yɛ mfiase a ɛyɛ konservatif sen sɛ ɛbɛyɛ daa, ɔkwan koro no ara so no 15 mΩ yɛ dan-ɔhyew ho akontaabu. Akontaabu a ɛsɛ sɛ wode di dwuma ankasa no fi cell manufacturer no charge rate a ɛsen biara wɔ wo pack no adwumayɛ hyew mu, na ɛkɔ bere a pack no kɛse, cable no tu mmirika, anaa contactor no sesa no.

Nea ɛma wunya biribi a mfaso wɔ so sen aboboano. Bere foforo a adetɔnfo bi bɛfa anohyeto a ɛne ne ho di nsɛ aka wo asɛm no, wubetumi abisa sɛ saa anohyeto abien no mu nea ɛde bae, ne emu resistance, contactor rating, ne charge-rate ceiling bɛn na wɔfaa no. Wobetumi abɔ nɔma bi a wonya fi akontaabu a ɛwɔ atifi hɔ no ho ban. Nɔma bi a wontumi nhwehwɛ mu nkɔ anohyeto abien no mu biara mu ne warranty hye a ɛhyɛ mfiridwuma atade.

Anohyeto foforo abien te akontaabu no akyi. Circulating current, a ɛkyerɛ sɛ current a ɛsen fa packs ntam mmom sen sɛ ɛbɛkɔ adesoa no so, a nsonsonoeɛ a ɛwɔ charge tebea, temperature, emu resistance, ne mfeɛ mu na ɛkanyan no, tumi wɔ tebea a emu yɛ den mu no dodoɔ a ɛboro protection devices a ne kɛseɛ yɛ ma load current nko ara, na DC-fã a ɛyɛ tiawa wɔ bank a ɛtrɛ mu no, string biara ma no prɛko pɛ. Na nhyehyɛe a ɛtrɛw a ɛne ne ho di nsɛ hia layered management: cell-level BMS wɔ pack biara mu, coordinating layer wɔ n’atifi, ne supervisory function a ɛkyerɛ nhama a ɛde ne ho hyɛ mu. Wɔn mu biara nyɛ nea wobetumi asan asiesie bere a sikakorabea no ayɛ wɔn ade wɔ ɔkwan a ɛnteɛ so dedaw no.

Nteɛso biako a ɛwɔ standard framing no mu, efisɛ ɛsakra sizing maths: paralleling mfa tumi nka ho wɔ akontaabu ntease mu. Usable capacity yɛ anohyeto denam ahama biara a edi kan du ne charge anaa discharge anohyeto, enti unit biara a enhyia no ba tẽẽ fi effective system tumi. Pack anan a ɛne ne ho di nsɛ ma wunya biribi a ennu pack anan a ahoɔden a wode bedi dwuma, na bere a obi nyin no, nsonsonoe no trɛw.

Suban a ɛwɔ eyinom nyinaa ase no yɛ nea wotumi susuw mmom sen sɛ ɛbɛyɛ ahintasɛm. Wɔde neural-network akwan ayɛ hot-swap circulating current wɔ parallel lithium nhyehyɛe mu ho nhwɛso na wɔagye atom wɔ sɔhwɛ mu wɔ bɛyɛ ɔha biara mu nkyem asia mu wɔ bo a wɔasusuw no mu (MDPI na ɛyɛ adwumaƐlektrɔnik mfiri a Wɔde Di Dwuma), ne mprempren-kyɛde mu nkɔso wɔ parallel-connected packs mu no, wɔakyerɛkyerɛ mu kɔ akyiri wɔ control nhoma ahorow mu (arXiv ansa na wɔatintim 2211.04961). Hyɛ no nsow nso sɛ nhyehyɛe bi fã a ɛka bom a ɛtoatoa so no nkutoo na ɛhwehwɛ sɛ wɔkari pɛ a ɛyɛ nnam. Nkwammoaa a ɛne ne ho di nsɛ tẽẽ no nam wɔn ankasa nkitahodi so yɛ pɛ, na ɛno ntinkwammoaa a ɛkari pɛ subanne inter-string circulating current yɛ ɔhaw abien a ɛsono emu biara a wonya ho asɛm sɛ biako.

Nea akontaabu a ɛwɔ atifi hɔ no ntumi mma wo ne resistance values ​​a wode bɛhyɛ mu. Nkwammoaa mu ahoɔden a ɛko tia no gu ahorow sɛnea nkwammoaa no te, mfe a wɔadi, ne ɔhyew, na akontaabu a ɛwɔ datasheet so no yɛ nkwammoaa a ɛyɛ foforo-a ɛwɔ digrii 25 . Yɛkora resistance curves a wɔasusu so ma formats a yɛde si no, na sɛ yɛde bɛtoto wɔn a ɛne duty cycle pɔtee bi hyia no yɛ eyi fã a ɛkɔ so wɔ nkɔmmɔbɔ mu sen sɛ ɛbɛsi wɔ clipboard so.

Bere a Ahama Baako Di Nsusuwii Biara a Ɛne Nsɛso So

Yɛbɛkasa atia sikakorabea a ɛtrɛw no mpɛn pii sen sɛnea adetɔfo hwɛ kwan, enti ɛfata sɛ yɛde gyinabea no to kyerɛwtohɔ mu.

Default a wɔpɛ wɔ battery systems engineering mu ne series string biako wɔ baabiara a application no ma ho kwan. Ɛyɛ nhyehyeɛ a ɛho ka sua paa-, ɛyɛ mmerɛ sɛ wobɛhwɛ so, na ɛyi inter-string haw ahodoɔ a yɛaka ho asɛm wɔ atifi hɔ no nyinaa firi hɔ. Wɔfata nhama pii a ɛne ne ho di nsɛ wɔ tebea teateaa bi mu: bere a redundancy yɛ ahwehwɛde a emu yɛ den efisɛ wontumi mma mfiri no kwan mma ennyae; bere a hot-swap tumi ho hia, sɛnea ɛte wɔ adwumayɛ a wontumi ntwitware anaasɛ ɛkɔ so-nnipa wom mu; na bere a nkwammoaa a ɛwɔ hɔ wɔ ɔkwan a wɔhwehwɛ no mu nkutoo ba pre-a wɔaboaboa ano ayɛ no nhama a wontumi mfa nsɛ wɔ nkwammoaa gyinabea.

Nea ɛka ho a wɔtaa bu atɛn a ɛnteɛ ne nea edi kan. Wɔtaa fa no sɛ redundancy mmom sen sɛ wɔbɛkyerɛ. Fleet manager bi susuw sɛ lɔre a egyina mid-shift no nyɛ nea wogye tom, na ɔde ba awiei sɛ ɛho hia sɛ wɔma obi gyae adwuma. Nanso parallel bank de redundancy ma nkutoo sɛ nhyehyɛe no tumi hu ahama bi a adi nkogu, tew ne ho, na ɛkɔ so yɛ adwuma wɔ tumi a wɔatew so, a ɛyɛ ahwehwɛde a wɔde di dwuma sen sɛ ɛbɛyɛ nea wɔde nhama ayɛ. Wiring packs a ɛwɔ parallel a enni saa tumi no tɔ nsɛnnennen a ɛwɔ parallel-heavy industrial series versus parallel battery connection ne nea ɛwɔ hɔ no mu biara. Wɔ saa nsɛm yi akyi no, sikakorabea a ɛtrɛw taa yɛ ɔkwan a wɔfa so di nneɛma a wɔde kyekyere nneɛma ho anohyeto ho dwuma sen sɛ wɔbɛpaw sɛnea wɔayɛ, na ɛsɛ sɛ wogye tom sɛ ɛte saa.

Ɛka bi a ɛyɛ komm nso wɔ hɔ a wɔntaa nkan. Ntwitwagye foforo biara de ɔsɔretia ka ho, na sikakorabea a wɔasi afi pack pii mu no ma ntwamu dɔɔso ntɛmntɛm: nkwammoaa anan-nkwaboaa nhyehyɛe nkutoo de nkitahodi ntam nkitahodi awotwe kyerɛ, emu biara boa ɔko tia na emu biara yɛ obi a ɔpɛ sɛ ɔsɛe (Battery Sukuupɔn BU-302). Scale saa logic no kɔ dunum-pack bank na nkitahodi sikasɛm nhyehyɛe no gyae sɛ ɛyɛ rounding mfomso. Yɛn ankasa mu botaeɛ ma adwene a wɔawie-tumi pack ne total resistance ase 50 mΩ, a ankorankoro nkitahodi wɔ 0.5 kosi 2 mΩ kwan, na trɛw parallel banks ma saa botae no nkakrankakra yɛ den sɛ wobekura.

Afe-Ɔhaw Abien

Biribiara a ɛwɔ atifi hɔ no fa no sɛ packs no yɛ pɛpɛɛpɛ. Wɔyɛ, wɔ delivery mu. Ɛkame ayɛ sɛ ɔfã a obiara nkyerɛw to hɔ no ne nea ɛba wɔ ɛno akyi.

Packs a gyaw production line a wɔhwɛ so yiye a ɛne tolerances a ɛyɛ den hyia no twetwe wɔn ho wɔ ɔsom mu, na bɛyɛ afe biako a wɔde yɛ adwuma ankasa no dɔɔso ma trɛw no abɛyɛ nea ɛfata wɔ adwumayɛ mu. Ɛsono baabi a lɔre bi si wɔ baabi a ɛhɔ yɛ hyew. Ɛsono sɛnea adwumayɛ kyinhyia ahorow no gyina nea ɔde di dwuma no so twe kar bɛn. Hokwan a wɔde tua sika no gu ahorow wɔ bere a wɔsesa mu. Nea efi mu ba ne sikakorabea a ne nhama ntena tebea koro mu bio anaasɛ emu resistance koro no ara, a ɛnam ɔkwan a ɛba fam koraa-resistance kwan so na ɛka bom, a ɛyɛ tebea pɔtee a ɛma mutual charge a ɛkɔ so daa ba packs ntam.

Failure mode a eyi de ba no yɛ counterintuitive araa ma wɔka tẽẽ: wɔ mismatched parallel bank mu no, packs a ɛyɛ den no sɛe ntɛmntɛm sen biara. Wɔsoa adesoa ahoɔden no pii efisɛ wɔn ahoɔden a ɛko tia no sua, wɔtwe anyinam ahoɔden a ɛkyinkyini bere a afoforo ahwe ase no, na wɔboaboa ahoɔden a wɔde fa mu ano wɔ ahoɔhare a pack a ɛyɛ mmerɛw no ntumi nkɔ da. Pack a anka wobɛtow kyakya wɔ so no di kan di nkogu, na esiane sɛ sikakorabea no kɔ so de anyinam ahoɔden a wotumi de di dwuma ma wɔ ne nyinaa mu nti, biribiara mmɔ ɔhaw no ho amanneɛ kosi sɛ tumi no bɛkɔ dedaw.

Eyi nso nti na "fa pack foforo ka sikakorabea no ho kɛkɛ" ne mfomso biako pɛ a ɛtaa ba wɔ afuw mu a yehu. Pack foforo a wɔde aba sikakorabea bi a akɔ so asram dunwɔtwe mu no nyɛ tumi a wɔma ɛkɔ soro. Ɛyɛ nsonsonoe kɛseɛ a ɛwɔ tumi mu wɔ ɔkwan a ɛba fam paa -resistance kwan so, na ɛyɛ inrush akontabuo a ɛwɔ atifi hɔ no mu ansa na obiara de ne nsa aka contactor. Sɛ ɛsɛ sɛ wɔsan de pack bi ba a, fa no ba matched open-circuit voltage wɔ ahomegyeɛ mu kan, na fa nteɛsoɔ korɔ no ara di dwuma sɛ ɛyɛ unit foforɔ anaa string a kan no atew ne ho a ɛresan aba intanɛt so. Hwɛ a wobɛhwɛ amaasetena ho nsɛnkyerɛnne a ɛba awiei-wɔ mpanyin afe so pack muho hia kɛse wɔ sikakorabea a ɛne ne ho di nsɛ mu sen hama biako mu, esiane sɛ sikakorabea no de wɔn sie nti pɛpɛɛpɛ.

Layout ne Thermal: Anohyeto a Ɛwɔ Schematic no Akyi

Topology a wɔpaw wɔ krataa so no bɛyɛ honam fam ade, na honam fam nneɛma wɔ ɔhyew a ɛkɔ soro.

Mframa-cooled packs de mframa akwan a ɛtoatoa so anaa parallel di dwuma, na nsɛmfua no ne anyinam ahoɔden nsɛmfua no bɔ wɔ ɔkwan a ɛyɛ adwenem naayɛ so bere a ɛkyerɛkyerɛ biribi a ɛyɛ soronko koraa mu no. Wɔ mframa kwan a ɛtoatoa so mu no, mframa kɔ ɔfã biako na efi ɔfã foforo, na ɛde ɔhyew a wɔafa afi module ahorow a edi kan mu no kɔ akyiri yi mu na ɛma ɔhyew a ɛtrɛw wɔ pack no mu. Mframa kwan a ɛne ne ho di nsɛ no de mframa kɔ module ahorow ntam enti ɛkɔ soro pɛpɛɛpɛ, na ɛkura ntrɛwmu no mu denneennen. Modules a ɛwɔ enclosure bi mfinimfini no boaboa ɔhyew ano; module ahorow a ɛwɔ anoano no hwie gu. Esiane sɛ ɛsono sɛnea ɔhyew a ɛwɔ mu ne nea wotumi yɛ no nyinaa gu ahorow nti, ɔhyew nhyehyɛe a ɛnteɛ na ɛma ɛyɛ nea ɛnhyia ankasa a na wo anyinam ahoɔden nhyehyɛe no rebɔ mmɔden sɛ ɛbɛkwati no. Ɛno nti na ɛte saaɔhyew ho nhyehyɛe ho nhyehyɛeyɛ ne dea wɔ topology nkɔmmɔbɔ no mu sen sɛ ɛbɛkɔ akyi.

Mmara abien a ɛfa nhyehyɛe ho di akyi. Ɛsɛ sɛ nkorabata biara a ɛne ne ho di nsɛ no kura ntoatoaso nhyehyɛe a ɛyɛ pɛ, a ɛnyɛ nea ɛka ho, efisɛ nkorabata a ɛnyɛ pɛpɛɛpɛ no ma ahoɔden a ɛkyinkyini ho bɔ ansa na wɔahyɛ pack no mpo. Na ɛsɛ sɛ nhama tenten a ɛda paralleled packs ne common busbar ntam no yɛ pɛ, enti ɔkwan a ɛko tia no nkyerɛ pack biako komm sɛ adwuma pɔnkɔ. Nneɛma abien no nyinaa bo yɛ mmerɛw sɛ wubenya no yiye bere a wɔreyɛ nhyehyɛe no na wɔ ɔkwan a etu mpɔn so no, ɛrentumi nyɛ yiye sɛ wobesiesie wɔ ɛno akyi.

Ɔhyew nso sesa dodow a wususuwii sɛ wowɔ no. Aduan-kyekyɛmu adetɔfoɔ bi a ɔwɔ Mexico de yɛn LiFePO4 pallet jack packs no di dwuma wɔ cold storage mu kɔsi bɛyɛ -18℃, na packs no kura output a ɛnyɛ nea ɛda adi sɛ ɛkɔ fam. Nanso mprempren kyɛfa a ɛda nhama a ɛne ne ho di nsɛ ntam wɔ saa ɔhyew no mu no nyɛ n’ade sɛnea ɛyɛ wɔ digrii 25 , efisɛ emu ahoɔden a ɛko tia no kɔ soro na ɛko tia a ɛtrɛw wɔ pack ahorow ntam no ne no trɛw. 15 mΩ akontabuo a wɔde dii dwuma wɔ akontabuo a ɛdi kan no mu no yɛ dan-ɔhyeɛ akontabuo. Wɔ freezer aisle mu no ɛyɛ anidaso, na voltage nsonsonoe a wɔma ho kwan wɔ connection no mu yɛ den sɛnea ɛfata. Sikakorabea a ɛkyɛ mprempren wɔ ɔkwan a wogye tom so wɔ adekoradan a ɔhyew afrafra mu no betumi akyɛ no yiye wɔ sotɔɔ a wɔtɔn nneɛma a ɛyɛ nwini mu.

Nsiesiei Abiɛsa, Wɔayɛ Ho Adwuma

Nea edidi so yi ne nhwɛso abiɛsa a yɛtaa hu, ne sɛnea series versus parallel battery connection siesie wɔ emu biara mu.

Nhwɛsoɔ a ɛwɔ mmiɛnsa no nyinaa mu no yɛ pɛ: du ahoɔden botaeɛ no ho denam cell format ne series voltage so kane, na fa parallel strings sɛ biribi a wɔagye atom wɔ adwumayɛ mu nteaseɛ pɔtee bi nti sene sɛ ɛbɛyɛ default kwan a ɛkɔ amp-hours pii. Baabi a compartment geometry ma ɛno ntumi nyɛ yiye no, ɛsɛ sɛ wɔbɔ anohyeto no din sɛ anohyeto wɔ nkyerɛkyerɛmu no mu sen sɛ wɔde bɛhyɛ nhyehyɛe no mu komm. Ɛno nso ne ɔkwan a ɛyɛ ntɛm sen biara a wɔfa so hu sɛ ebia amotive tumi battery rangebetumi adu botae no ho a wonni amanne kwan so ɔdan.

Sɛ Wobɛkyerɛ Akyerɛ Ɔdemafo Bi

Sɛ topology akwankyerɛ no mu da hɔ wie a, specification a wode bɛmena no na ɛkyerɛ sɛ wobɛnya pack engineered ama wo duty cycle anaasɛ catalog item a wo voltage wɔ label no so. Nneɛma asia a wɔde hyɛ mu na ɛma nsonsonoe no ba:

• Adwinnade nominal voltage ne controller no voltage mfɛnsere a wogye tom, ɛnyɛ nominal akontaabu no nkutoo
• Peak current draw bere a ɛyɛ adwuma a emu yɛ duru sen biara wɔ kyinhyia no mu, ne ne bere tenten
• Battery compartment dimensions ne pack mu duru a ɛsen biara a wɔma ho kwan
• Shift pattern ne charge windows a ɛwɔ hɔ, a sɛ ebia wɔhwɛ kwan sɛ wɔbɛbɔ hokwan agye ka ho
• Ɔhyew a wɔde yɛ adwuma, a awɔw-adekorabea anaa abɔnten so a wɔde hyɛ mu frɛ no pefee
• Sɛ́ ebia mfiri no betumi agyina full stop ano, a ɛkyerɛ sɛ ebia redundancy yɛ ahwehwɛde ankasa anaasɛ ɛyɛ adwene

Nsɛmmisa a wosan bisa no bo yɛ den sen specification a wode mena no, efisɛ emu biara yiyi supplier soronko bi mu. Sɛ wobisa nea parallel anohyeto a wɔafa aka no gyina so a, ɛtetew adetɔnfo a wobu akontaa no ne wɔn a wonya fii datasheet mu no ho. Sɛ wobisa nea emu resistance ne contactor rating kɔɔ saa akontaabu no mu a, ɛkyerɛ wo sɛ ebia obi ahwɛ wo mfiri no mmom sen sɛ ɔbɛhwɛ generic case anaa. Sɛ wobɛbisa sɛdeɛ nhama no di nkitaho, sɛ ebia coordinating layer bi wɔ pack-level BMS no atifi anaasɛ pack dodoɔ bi pɛ a wɔkyɛ busbar na wɔwɔ anidasoɔ a, ɛyɛ ɔkwan a ɛyɛ ntɛm a wobɛfa so ahu sɛ ebia ɔdemafoɔ bi ayɛ multi-string systems anaasɛ watɔn wɔn nko ara. Na sɛ wobisa ɔkwan a wɔakyerɛw ato hɔ a wɔfa so san de pack a atew ne ho ba a, ɛbɛkyerɛ wo sɛ ebia ɛsɛ sɛ wɔboa biako pɛn wɔ afuw no mu, efisɛ saa nhyehyɛe no kyerɛw bere a edi kan a asɛe no akyi nkutoo.

Yɛde nsɛmmisa anan koro no ara tu mmirika tia yɛn ho ansa na yɛafa multi-pack nhyehyɛe biara aka, na resistance curves ne reintroduction procedure a yɛadi kan aka ho asɛm no ne nea saa nhyehyɛe no de ba. Sɛ wonya series versus parallel battery connection no yiye ma duty cycle pɔtee bi ne baabi a saa adwuma no kɔ so, a ɛno ne neacustom pack nhyehyeɛyɛ ma.

FAQ

Sɛ woreyɛ multi-pack nhyehyɛe kɛse ama po so ahyɛn pɔtee bi na wopɛ sɛ wɔhwɛ nhyehyɛe no mu ansa na wɔahyɛ no bɔ a, .wo ne yɛn mfiridwuma kuw no nkasa.