Kodi Ah Amatanthauza Chiyani Pa Battery? Amp Hour Ratings

Ndataya kuwerengera kangati kasitomala wandiimbira foni akundifunsa chifukwa chake "200Ah batri banki" inatha madzi patangotha ​​maola a 3 pamene masamu adanena kuti iyenera kukhala 8. Yankho lalifupi? Nambala ya Ah yomwe ili palembayo sikutanthauza zomwe anthu ambiri amaganiza kuti imatanthauza.

Ah akutanthauza chiyani pa batri?Imayimira ampere-ola{1}}muyeso wa kuchuluka kwa magetsi omwe batire imasunga. Ganizirani izi ngati thanki yamafuta mugalimoto. Thanki ya 100-galoni imakuuzani kuchuluka kwake, koma sikukuuzani kutalika komwe mungayendetse. Izi zimatengera katundu amene mukunyamula, malo, nyengo, komanso ngati injini yanu ndi yamafuta-kapena yowotchera gasi.

Mabatire amagwira ntchito chimodzimodzi. Kuyeza kwa 100Ah kumatanthauza kuti batri imatha kutulutsa ma amps 100 kwa ola limodzi, kapena ma amps 10 kwa maola khumi, kapena 1 amp kwa maola zana. Koma "mwachidziwitso" akukweza kwambiri m'chiganizocho.

Izi ndi zomwe zimafunikira kwa aliyense amene amagula mabatire pamalo amalonda, makina osungira zinthu m'mafakitale, kapena pulojekiti yothandiza: kumvetsetsa kusiyana pakati pa zomwe zimasindikizidwa pazida ndi zomwe zimawonekera mdziko lenileni. Pewani izi, ndipo mukulipirira kuchuluka komwe simungagwiritse ntchito kapena kuthamangitsa makina anu osunga zobwezeretsera akazimitsidwa{1}}pakatikati.

Masamu Ndi Osavuta. Zoona Sizili.

Njira yoyambira siyingakhale yophweka:

Nthawi Yothamanga=Mphamvu ya Battery (Ah) ÷ Katundu Pano (A)

Muli ndi batire ya 100Ah? Kuthamanga katundu wa 10-amp? Ndi maola 10 akuthamanga. Zatheka.

Kupatula ... osati kwenikweni. Sindinawonepo batire ikupereka mphamvu zake zonse kunja kwa labotale. Ichi ndichifukwa chake fomulayi imagwera m'munda:

Vuto la Mtengo Wotulutsa

Opanga mabatire amayesa kuchuluka kwa mabatire m'mikhalidwe inayake-nthawi zambiri imatuluka pang'onopang'ono, pang'onopang'ono kwa maola 20 (yotchedwa C/20 rate). Batire lanu la 100Ah lidapeza mlingowo pojambula ma amp 5 okha kwa maola 20 molunjika.

Koma makina anu osunga zobwezeretsera samakoka ma amps 5. Imakoka 50. Kapena 100. Ndipo mukamakoka zamakono mofulumira chotero, simufika paliponse pafupi ndi kuchuluka kwake.

The Temperature Factor

Mabatire amadana ndi nyengo yozizira monga momwe ndimachitira. Pakuzizira kozizira, mutha kungopeza 70-75% ya mphamvu zovotera. Pa -20 digiri? Mukuyang'ana mwina theka.

Ndinali ndi kasitomala ku Minnesota yemwe amaganizira zosunga zobwezeretsera panja pa telecom potengera momwe chilimwe chimagwirira ntchito. Choyamba ozizira chithunzithunzi, dongosolo analephera. Maphunziro okwera mtengo.

The Chemistry Gap

Ichi ndiye chachikulu, ndipo ndipamene ndimawona zolakwika zodula kwambiri.

Batire ya 100Ah lead-acid ndi 100Ah lithiamu batire sizofanana. Osati ngakhale pafupi. Zili ngati kuyerekeza 100-thanki ya galoni mu sedan ndi nambala yofanana ya galimoto yofanana, yosiyana kwambiri yogwiritsiridwa ntchito.

Chifukwa chiyani Mavoti a Lead-Acid ndi Lithium Ah Sangayerekezedwe Mwachindunji

Kumapeto kwa zaka za m'ma 1800, wasayansi wina wa ku Germany dzina lake Wilhelm Peukert anapeza chinthu china chovuta: mukamakhetsa batire mwachangu, mphamvu zonse zimatulukamo. Masamu ake amativutitsabe mpaka pano.

Nayi njira yogwiritsidwira ntchito: Mabatire a lead{{0}acid ali ndi mphamvu zolimba mkati. Mukakoka magetsi olemera, mphamvu zambiri zimawonongeka ngati kutentha mkati mwa batire m'malo mogwiritsa ntchito zida zanu. A Peukert exponent amawerengera -lead-mabatire a asidi awa nthawi zambiri amakhala ndi 1.2 mpaka 1.6, kutanthauza kuti mphamvu yamagetsi yachepa kwambiri ikatha.

Mabatire a lithiamu? Mawonekedwe awo a Peukert ali mozungulira 1.02 mpaka 1.05. Pafupifupi chonyozeka. Mumapeza pafupifupi kuchuluka kwake konse mosasamala kanthu kuti mukukoka molimba bwanji.

Kufotokozera Tchati: Batire ya lead{{0}acid yomwe ili pa 100Ah imangotulutsa pafupifupi 55Ah ikangotulutsidwa kwa maola 2 m'malo mwa 20. Batire ya lithiamu imatulutsa 98Ah nthawi yomweyo. Chizindikiro chomwecho, machitidwe osiyana kwambiri.

Koma zimafika poipa kwambiri-asidi wa lead. Simungagwiritsenso ntchito mphamvu zonse popanda kupha batri.

Kuthira-kutulutsa batire ya lead-acid nthawi zonse kutsika ndi 50% pa mlingo wokwanira, ndipo mudzafupikitsa moyo wake. Opanga ambiri amalimbikitsa kuti musapitirire 50%-kutanthauza kuti batire lanu la "100Ah" limakupatsani 50Ah yotha kugwiritsiridwa ntchito.

Mabatire a lithiamu amatha kutulutsa kuya kwa 80-90% mwachizolowezi, ena ngakhale 100%. Batire yanu ya 100Ah lithiamu imapereka 80-90Ah yamphamvu yogwiritsidwa ntchito.

Ndiroleni ndiyike manambala enieni pa izi:

Momwemonso Ah. Batire ya lithiamu imapereka mphamvu pafupifupi kuwirikiza kawiri mphamvu zomwe zingagwiritsidwe ntchito.

Tikuwona izi zikuseweredwa pafupipafupi mu telecom ndi mafakitale retrofits. Pulojekiti yaposachedwapa ikukhudza siteshoni yakutali ya telecom yomwe inkadalira banki yolemera ya 400Ah lead-acid. Wogwiritsa ntchitoyo anakhumudwa chifukwa kutsika kwa magetsi kumachititsa kuti magetsi azichepa-mawotchi amagetsi atangotsala pang'ono kutha kwa maola 3 okha-kulephera kukwaniritsa maora 6.

Tidasintha banki yayikuluyi ndi ma rack module a 200Ah 48V LiFePO4 -mwaukadaulo theka la kuchuluka kwa "nameplate". Chotsatira? Dongosolo latsopanoli lidapereka maola opitilira 5 a nthawi yokhazikika chifukwa silinavutike ndi kutayika kwa Peukert pansi pa katundu wolemetsa wa tsambalo. Makasitomala adapezanso nthawi yopitilira 60% yeniyeni{8}}padziko lonse lapansi kuchokera pamakina omwe amalemera 60% kuchepera. Ndiko kusiyana pakati pawokumvetsetsa zomwe Ah akutanthauza pa batrim'malingaliro motsutsana ndi zomwe imapereka muzochita.

Zomwe C-Mavoti Awo pa Mapepala Apadera Amatanthauza Kwenikweni

Mukakumba ma data a batire, mudzawona kuchuluka kwa batire "C-mitengo" yosiyana. Uku si kutsatsa malonda-ndikukuuzani ndendende momwe wopanga adayezera nambalayi.

C/20 amatanthauza kuti batire idatulutsidwa kupitilira maola 20. C/10 amatanthauza maola 10. C/5 amatanthauza maola 5.

Kugwira: opanga osiyanasiyana amagwiritsa ntchito C-mitengo yosiyana pamitu yawo. Mitundu ina ya bajeti imayesa C/100 (kutulutsa kwa maola 100) kuti iwonjezere manambala awo a Ah. Batire ya 100Ah yoyesedwa pa C/100? Itha kungopereka 70Ah pamlingo wa C/20 womwe opanga ma premium amagwiritsa ntchito.

Musanafanizire mabatire awiri aliwonse, yang'anani mtengo wa C-. Ngati iwo ndi osiyana, kufananitsako kumakhala kopanda tanthauzo.

Yang'anani mwachangu: ngati batire ikuwoneka bwino kwambiri kuti singakhale yowona pamtengo-pa-Ah, onani kuti -akugwiritsa ntchito mlingo wanji. Nthawi zambiri mumapeza kuti "bargain" batire idayesedwa m'mikhalidwe yofanana ndi pulogalamu yanu yeniyeni.

Ah vs. Wh vs. kWh: Kuwongola Mayunitsi Anu

Izi zimakhudza anthu nthawi zonse. Ndiroleni ndifotokoze.

Ah (maola -ampere)zimakuuzani kuchuluka kwa ndalama-ndalama zomwe zilipo komanso nthawi yayitali.

Wh (maola-watt)zimakuuzani mphamvu yamagetsi-yomwe imagwiritsa ntchito mphamvu yeniyeni yamagetsi.

Kutembenuka:Mphamvu (Wh)=Mphamvu (Ah) × Voltage (V)

Batire ya 12V, 100Ah imasungira 1,200Wh. A 48V, 100Ah mabatire amasungira 4,800Wh.

Kuwirikiza kanayi mphamvu yamagetsi, kuwirikiza kanayi mphamvu-ngakhale onse akunena kuti "100Ah" pa lebulo.

Mukayerekeza mawu ochokera kwa ogulitsa osiyanasiyana, nthawi zonse sinthani kukhala Wh kapena kWh. Ndawonapo magulu ogula zinthu mwangozi akuyitanitsa njira yolakwika chifukwa amafanizira manambala a Ah pamapulatifomu osiyanasiyana.

Kufotokozera kwachangu pazosintha wamba:

Ma Applications enieni: Kufananiza Ah ndi Zosowa Zanu Zenizeni

Chiphunzitso chokwanira. Tiye tikambirane za kuchuluka komwe mukufunikira pazamalonda wamba ndi mafakitale.

Mphamvu Zosunga Zosungira Pazinthu Zovuta Kwambiri

Kupanga sizing kumayambira ndikuwunika kwanu. Kodi ndi chiyani chomwe chiyenera kupitilirabe pa nthawi yozimitsa, ndipo kwa nthawi yayitali bwanji?

Umu ndi momwe ndimayendera makasitomala:

Khwerero 1: Lembani katundu aliyense wovuta ndi zojambula zake zamakono

Kuyatsa kwadzidzidzi: 5A

Makina achitetezo: 3A

Zida zamagetsi / IT: 15A

Kuwongolera kwa HVAC: 8A

Chiwerengero chonse: 31A

Khwerero 2: Dziwani nthawi yothamanga yofunikira

Chofunikira chodziwika bwino: Maola a 4 mpaka jenereta iyambike kapena gridi ibwerere

Gawo 3: Werengetsani kuchuluka kwa maziko

31A × 4 maola=124Ah osachepera

Khwerero 4: Gwiritsani ntchito{1}}zinthu zenizeni padziko lapansi

Ngati mukugwiritsa ntchito lead-acid pa 50% DoD: 124 ÷ 0.50=248Ah

Ngati mukugwiritsa ntchito LiFePO4 pa 80% DoD: 124 ÷ 0.80=155Ah

Onjezani 15% malire okalamba: 285Ah (lead-acid) kapena 178Ah (lithiamu)

Khwerero 5: kuzungulira kukula komwe kulipo

Asidi wotsogolera{{0}: 300Ah system

LiFePO4: 200Ah dongosolo

Ntchito yomweyo. Lifiyamu system ndi yaying'ono, yopepuka, ndipo nthawi zambiri imakhala yotsika mtengo pa moyo wake wonse ngakhale mtengo wapamwamba kwambiri.

Kumeta Peak ndi Kuchepetsa Mtengo Wofuna

Kuwerengera kosiyana kwathunthu. Apa mukutengera kuchuluka kwazomwe muyenera kumeta komanso nthawi yazenera lanu lomwe mukufuna.

Ngati malo anu agunda nsonga za 500kW pawindo la masana a maola awiri, ndipo mukufuna kumeta 200kW kuchokera pachimake:

Mphamvu yofunikira: 200kW × 2 maola=400kWh

Pa makina a 400V: 400,000Wh ÷ 400V=1,000Ah

Koma muyeneranso kuwerengera mphamvu ya inverter (~ 95%) ndi kuya kwa malire otulutsa. Kukula kwenikweni kwapadziko lonse-kutha kukhala 1,200-1,300Ah pa 400V.

Kukula pakumeta kwambiri kumafuna kupitilira ma ratings osavuta a Ah kupita kumtunda-C-kuchuluka kwa magwiridwe antchito. Posachedwapa tatumiza kabati ya 215kWh-yozizira ya C&I m'malo opangira zinthu omwe ali ndi ndalama zambiri. Amafunika kutulutsa mwachangu kuti achepetse mphamvu ya mphindi 15 masana aliwonse.

Batire yanthawi zonse ya "mphamvu-maselo" ikadatenthedwa kapena kutsika mu mphamvu yamphamvu imeneyo. Poyesa makina okhala ndi -maselo ochita bwino kwambiri omwe amatha kutulutsa 1C mosalekeza, tathandiza malowa kuti achepetse mtengo wawo ndi pafupifupi $2,800 pamwezi. Dongosololi lidadzilipira yokha m'zaka zopitilira 3.5-osati chifukwa linali ndi mavoti apamwamba kwambiri a Ah pamapepala, koma chifukwa limatha kupereka mphamvuzo pomwe kufunikira kwa gululi kudakwera kwambiri.

Solar + Storage Systems

Mukalumikiza mabatire ndi solar, mukuyanjanitsa zinthu ziwiri: kusunga makina opangira masana okwanira kuti azitha kunyamula katundu wamadzulo, komanso kukhala ndi mphamvu yokwanira-kutha kupirira masana.

Dongosolo losungirako zinthu zoyendera dzuwa-kuphatikiza{1}}lingathe kukula batire yokwanira maola 2-4 akuchulukana. Ngati malo anu ali ndi mphamvu ya 50kW nthawi yamadzulo ndipo mukufuna maola atatu osungira:

50kW × 3 maola=150kWh

Apa ndi pamenePolinovel's cabinet yakunja BESS mayankhonthawi zambiri zimakwanira bwino-zidapangidwa kuti zigwirizane ndendende ndi mtundu woterewu wolumikizana ndi solar, zokhala ndi mphamvu kuyambira 120kWh mpaka pafupifupi 1MWh m'machunidwe am'modzi.

Mbendera Zofiira Poyesa Othandizira Battery

Pambuyo pazaka zambiri pantchitoyi, ndapanga chowunikira chodalirika cha BS cha batri. Nazi zomwe mungawonere:

Kuthekera koyesedwa pa C-mitengo yosatheka

Ngati mutu wa Ah nambala udayesedwa pa C/100 koma ntchito yanu imatuluka pa C/5, izi ndizopanda ntchito kwa inu. Funsani kuchuluka kwa data pamlingo womwe mukuyembekezeka kutulutsa.

Zosowa za kutentha

Wopanga aliyense wovomerezeka amasindikiza ma curve ochepetsa kutentha. Akangokupatsani nambala imodzi popanda kutentha, akubisa chinachake.

Moyo wapaulendo wopanda mawu a DoD

"10,000 cycles" imamveka bwino mpaka mutawerenga bwino ndikupeza kuti ndi 50% kuya kwake. Pa 80% DoD, batire lomwelo limatha kupitilira 4,000. Nthawi zonse funsani: kuzungulira pa DoD chiyani?

Palibe data ya Peukert ya lead-acid

Ngati wopanga {{0}asidi wopangira batire la asidi sangakuuzeni mphamvu yaku Peukert kapena kukupatsani ma curve amachulukitsidwe osiyanasiyana, chokanipo. Amadziwa kuti manambala awo akuwoneka oyipa.

"Equivalent Ah" mavoti

Opanga ena-makamaka mu lifiyamu space- amagwiritsa ntchito "mavoti ofanana ndi Ah" omwe amafananiza batire lawo ndi asidi-asidi. Batire yolembedwa kuti "100Ah yofanana" ikhoza kukhala 50Ah. Sikunama mwaukadaulo, koma zidapangidwa kuti zikusokonezeni.

Mu labu yathu yaukadaulo, timatsimikizira gulu lililonse la cell lisanalowe mu module. Nthawi zonse timakana ma "bargain" ma cell omwe amati ma voti apamwamba a Ah koma amalephera kunyamula. Mwachitsanzo, posachedwapa tinayesa chitsanzo cha selo kuchokera kwa wogulitsa kunja chomwe chinachita bwino pa 1 amp (C/100) koma chinagwera ku 65Ah titakoka 50 amps (0.5C)-katundu wofanana ndi makina a mafakitale.

Ichi ndichifukwa chake malamulo athu a database ndi okhwima: timayesa athumalonda BESS mphamvukutengera mafunde enieni ogwirira ntchito, osati kutulutsa kochulukirachulukira. Ngati wothandizira sangakuwonetseni mayendedwe otuluka pa 0.5C kapena 1C, akubisa momwe batire yawo ikugwirira ntchito.

Kukula kwa Gridi-Sikeleni ndi Containerized BESS

Pazantchito-za mapulojekiti akale, sitikulankhulanso za mavoti a Ah payekha{1}tikulankhula za kuchuluka kwa MWh kopangidwa kuchokera kumaselo masauzande.

Komakumvetsetsa zomwe Ah akutanthauza pa batripamlingo wa cell ndizofunikabe, chifukwa zimakuthandizani kuti muwunikire kapangidwe kake ndi zolakwika zamtundu.

Umu ndi momwe masamu amagwirira ntchito pamakina omwe ali ndi zida:

Maselo amtundu wamba ndi 280Ah LiFePO4 prismatic cell pa 3.2V mwadzina.

Mphamvu pa selo: 280Ah × 3.2V=896Wh ≈ 0.9kWh

Pachidebe cha 5MWh: 5,000kWh ÷ 0.9kWh=~5,556 maselo ofunikira

Maselowa amapangidwa mu zingwe zotsatizana (kuti apange magetsi) ndi zingwe zofananira (kumanga mphamvu). Kusintha kwanthawi zonse kungakhale:

Maselo 16 akutsatizana=51.2V module

Ma module angapo pamndandanda=400-800V rack

Ma rack angapo mofananira=kutsata kuchuluka kwa MWh

Mukawunika zolemba za BESS, onetsetsani:

Maselo-magawo a Ah a cell ndi opanga

Kukonzekera kwa Series/parallel

Mphamvu zonse zowerengedwera zikufanana ndi kuchuluka komwe amati

-maulendo ozungulira (nthawi zambiri 85-92%)

Kugwiritsa ntchito mphamvu zothandizira (kuzizira, BMS) komwe kumachepetsa mphamvu yogwiritsira ntchito

Machitidwe a BESS a Polinovelkuyambira 3.85MWh kufika pa 5MWh+ pa chidebe chilichonse, pogwiritsa ntchito ma cell a LiFePO4 makamaka kuti azitha kuyenda bwino komanso kuti matenthedwe azikhala osasunthika poika{4}}kachulukidwe kwambiri.

Pansi Pansi pa Mavoti a Battery Ah

Onani,Ah akutanthauza chiyani pa batrisizovuta m'malingaliro. Ndi muyeso wa kuchuluka kwa ndalama. Chulukitsani ndi voteji kuti mupeze mphamvu. Gawani ndi katundu wapano kuti muyerekeze nthawi yothamanga.

Vutoli limachokera ku zinthu zonse zenizeni-zapadziko lapansi zomwe zimawononga mphamvu yongoyerekeza: kuchuluka kwa kutulutsa, kutsika kwa kutentha, kuya-kwa{2}}kuchepetsa kutulutsa, ndi kusiyana kwa chemistry.

Makasitomala omwe ndimagwira nawo ntchito omwe amapewa zolakwika zodula ndi omwe:

Nthawi zonse sinthani kukhala kWh yogwiritsidwa ntchito, osati dzina la dzina Ah

Tsimikizirani C-mlingo womwe umagwiritsidwa ntchito poyesa kuchuluka kwa anthu

Ikani kutentha ndi kukalamba kuwononga malo awo enieni

Kukula kwaubwino weniweni wa lithiamu m'malo motengera Ah onse ofanana

Funsani ogulitsa kuti akupatseni data malinga ndi momwe amagwirira ntchito, osati labu

Chitani zinthu zisanuzo, ndipo mudzafotokozera machitidwe omwe azichita momwe amayembekezera.

Mafunso Ofunsidwa Kawirikawiri

Maumboni

Peukert, W. (1897). "Über die Abhängigkeit der Kapazität von der Entladestromstärke bei Bleiakkumulatoren." Elektrotechnische Zeitschrift.

Yunivesite ya Battery. "BU-503: Momwe Mungawerengere Nthawi ya Battery." batteryuniversity.com

IEEE 1188-2005. "IEEEE Imalimbikitsa Makhalidwe Osamalira, Kuyesa, ndi Kusintha Mabatire a VRLA Pamapulogalamu Okhazikika."

IEC 61427-1:2013. "Maselo achiwiri ndi mabatire osungira mphamvu zongowonjezwdwa - Zofunikira zonse ndi njira zoyesera."