Iiyure ze-Amp ukuya kwiiyure zeWatt: Gqibezela iSikhokelo soGuqulo
Silahlekelwe yiprojekthi ye-AGV yokugcina ebandayo kwi-Q3 kunyaka odlulileyo. Injineli yomxhasi igxininise ekubaleni kwakhona i-Wh yokwenyani isebenzisa i-80% ye-DoD kunye neyokuthotywa kweqondo lobushushu. Siye sacaphula ngokuthe ngqo sisebenzisa umenzi onikwe ireyithi ye-100Ah amaxesha nge-12V, kwaye iphelile malunga ne-15% yesaphulelo.
Ngokunyaniseka, ndandicinga ukuba izibalo zabo zazinokugcinwa kakhulu ngelo xesha. Xa sijonga emva, ulungiso lwabo lobushushu belunoburhalarhume, kodwa besele siphulukene nexabiso-lokuxoxa ngokulungileyo nokungalunganga bekungancedi nganto. Ukusukela ngoko, sifuna zonke iikowuti zibandakanye icwecwe lokubala lokubala, kwaye kufuneka lidlule kubunjineli phambi kokuba iCFO isayine. Inkqubo iyadika ngakumbi, kodwa ubuncinci asizukulahlekelwa zizivumelwano ngeempazamo ezisisiseko ezilolo hlobo kwakhona.
La mava andenze ndaqonda into ethile: abantu abaninzi baphatha ukuguqulwa kwe-Ah ukuya kwi-Wh njengezibalo zesikolo esiphakathi{0}}Wh ilingana no-Ah phinda-phinde V, yenziwe. Kodwa nabani na owenza ukuthenga uyazi ukuba kukho imigibe emininzi ezifihle emva kwale "formula ilula."
Masiqale ngeFomula ngokwayo
Yh=Ah × V, ichanekile. Ibhetri ye-100Ah kwi-12V yegama ikunika i-1200Wh.
Kodwa loo 12V inamandla ombane. Kumsebenzi wokwenene, i-voltage iguquguquka phakathi kwe-10.5V kunye ne-14.4V. Yeyiphi inombolo oyisebenzisayo?
Indlela yethu yangoku kukusebenzisa-amandla ombane okukhutshwayo aphakathi{1}}owona mbane wombane kumbindi weSOC. Kwi-LFP, ngokuqhelekileyo sisebenzisa i-12.8V endaweni ye-12V, ekunika i-6.7% yamandla amaninzi. Akuvakali ngathi kuninzi, kodwa ngapha kwe-50 forklifts, yimali yokwenyani leyo.
Indlela echaneke ngakumbi kukudibanisa igophe lokukhupha, ukuqokelela i-Ah iphindaphindwe ngamandla ombane we-V (t). Ngokwethiyori eyona ichaneke kakhulu, kodwa ngokunyaniseka asifane senze oku kwiiprojekthi zokwenyani{1}}kunzima kakhulu, kwaye ababoneleli abaninzi abanokukhupha iigophe ezipheleleyo.
Isifundo esisuka kwiProjekthi ye-AGV yoNyaka ophelileyo
Buyela kuloo projekthi ilahlekileyo. Sivavanye ababoneleli abathathu, kwaye nantsi indlela ebukeka ngayo:
Umboneleli A
Umthengisi osekiweyo{0}}i-lead{1}}asidi, 12.0V/100Ah ecatshulwe kwi-$178.50 equka irhafu, 60{6}imiqathango yentlawulo yosuku, ukuhanjiswa kweveki enye. Ubudlelwane obuhle, umntu wokufowuna xa izinto zingahambi kakuhle.
Umthengisi B
Umthengisi omtsha we-LFP-12.8V/100Ah ucatshulwe kwi-423 yeedola ezibandakanya irhafu, i-30% yediphozithi efunekayo, i-8-iveki yokukhokela. Impendulo yenkxaso yobugcisa yayifanelekile.
UmthengisiC
Kwakhona i-LFP-13.2V/100Ah ecatshulwe kwi-389 yeedola, nayo ifuna idiphozithi, kodwa ixesha lokukhokela laliyi-16 iiveki. Intengiso yathi iyaxoxisana, kodwa oko kwajika kwaba yiBS.
Ukujonga ngokuthe ngqo kwi- $/Wh:
Umboneleli A: $178.50 ÷ 1200Wh=$0.149/Wh
Umboneleli B: $423 ÷ 1280Wh=$0.330/Wh
Umboneleli C: $389 ÷ 1320Wh=$0.295/Wh
Umnikezeli u-C ukhangeleka njengeyona nto ilungileyo, akunjalo? Kodwa asikwazanga kulinda iiveki ezili-16-ukulibaziseka kweprojekthi kuthetha izohlwayo zamanani amahlanu{2} ngeveki. Sigqibele ngokucaphula kuMboneleli B, kwaye umxhasi usebenzise idatha ye-Supplier C ukuphikisa ukuba ukulinganisa kwethu kwakungalunganga.
Akukho nalinye icala elenze iimpazamo zokubala{0}ingqikelelo yayahluka. Sisebenzise amandla ombane aqhelekileyo kunye ne-DoD eqhelekileyo; basebenzise umlinganiselo ophakathi{2}}wombane wepoint kunye nokuthotywa okunamandla. Niphikisana njani ngale nto? Ngokobuchwephesha zombini zinokuthetheleleka; ngokurhweba, nabani na olahlekelwayo uyayamkela.
Kutheni ngoku ndiJolisa ngakumbi kwi-Wh Than Ah
U-Ah unengxaki enkulu njenge-metric: ayibonisi amandla, yintlawulo kuphela.
Ngeebhetri zonke zibekwe kwi-100Ah:
| Uhlobo | Amandla oMbane | Kubalwe Wh | Uqikelelo olunokusetyenziswa |
|---|---|---|---|
| ILead ekhukulayo{0}}iasidi | 12.0V | 1200 | ~500-600 |
| IAGM | 12.0V | 1200 | ~550-650 |
| LFP | 12.8V | 1280 | ~950-1050 |
| LFP | 13.2V | 1320 | ~1000-1100 |
Kutheni le nto-iasidi esebenzisekayo ingaphantsi kwesiqingatha? I-DoD ilinganiselwe kwi-50%, ngaphandle koko ubomi bomjikelo buyehla kakhulu. I-LFP inokukhupha kwi-80% okanye i-90% ngelixa igcina ubomi bomjikelezo.
Lo mahluko udla ngokungahoywa ngexesha lesigaba sokucaphula. I-CFO ibona i-lead -iasidi kwi-$ 180 ngokuchasene ne-LFP kwi-$ 400, kwaye impendulo yokuqala "ixabiso eliphindwe kabini." Kodwa ukuba ubala amandla okwenene asebenzisekayo, ilothe-iasidi imalunga ne-$0.30/Wh, LFP malunga ne-$0.38/Wh{8}}umsantsa awukho kangako. I-Factor kwimijikelo yokutshintsha, kwaye i-LFP inexabiso eliphantsi.
Ewe, oku kuxhomekeke kwisicelo esithile. Kwishifti enye-eyodwa,{2}}iziganeko zomsebenzi olula, ilothe{3}}asidi inokuthi ngenene ibenoqoqosho ngakumbi{4}}akukho mfuneko yokutyhala i-LFP.
Iqondo lobushushu: Iguquguquko Abantu abaninzi abaYijongeli phantsi
Sinomthengi eWisconsin owenza ityathanga elibandayo-indawo yokugcina impahla ihlala malunga ne-40℃F unyaka{2}}umjikelo, yehla ngaphantsi kwe-20℃F ebusika. Bebesebenzisa iibhetri zika-AGM ngaphambili, kwaye kwafuneka bazitshintshe emva kweenyanga ezili-14 xa umthamo wehla ngaphantsi kwe-60% yereyithi{7}}engasebenzisekiyo ngokupheleleyo.
Emva kokutshintshela kwi-LFP, iinyanga ze-26 kwindawo efanayo kwaye kusekho ngaphezu kwe-90% umthamo. I-ROI kule meko ibonakala ilungile, kodwa kufuneka ndicace: le yeyona nto-yemeko{4}}ebandayo yindawo emnandi ye-LFP.
Nantsi indlela ubushushu obuchaphazela ngayo umthamo (le yidatha yethu yovavanyo; abavelisi abohlukeneyo baya kwahluka):
| LFP | IAGM | |
|---|---|---|
| I-77℃F / 25 degree | 100% | 100% |
| I-60℃F / 15 degree | 94-97% | 85-90% |
| I-40℃F / 4 degree | 85-90% | 70-80% |
| I-20℃F / -7 degree | 70-78% | 55-65% |
| I-0℃F / -18 degree | 50-60% | 35-45% |
Njengoko ubona, xa ubushushu behla, umsantsa phakathi kweentlobo ezimbini zebhetri uya banzi. Kwizicelo zokugcina ezibandayo, inzuzo ye-LFP ibalulekile.
Kodwa qaphela{0}}oku kukukhutshwa kokusebenza. Ubushushu obuphantsi-ukutshaja kwe-LFP ngomnye umgibe. Ukutshaja ngaphantsi kwe-0℃kubangela i-lithium plating, kwaye iinkqubo ezininzi ze-BMS ziyakutshixa nje ukutshaja. Ukuba abathengi bakhalaze ngale nto, besithi ibhetri yophukile{6}}yeyona nto ibiyindlela yokhuseleko ye-BMS eqhubayo. Intengiso ayizukukuxelela oku.
Indlela yokubala i-TCO
Ndinedatha evela kwiinqwelo ezimbini ezithelekisekayo. Besilawula izinto eziguquguqukayo kangangoko, kodwa kusekho umahluko kwimisebenzi yabathengi{1}}thatha idatha njengereferensi kuphela.
I-Fleet A: Iilori ezingama-20 zokufikelela, i-lead-asidi, i-2-shift operation
Unyaka woku-1 wokugcinwa komsebenzi usekelwe kwiirekhodi zekhadi lexesha elichanekileyo: $ 18.2K. Ukusukela kuNyaka wesi-2, umxhasi utshintshe iikontraka, kwaye sinazo kuphela iitotali ze-invoyisi, ezinokubandakanya ezinye izinto-zingachanekanga kangako.
Ixabiso lexesha lokuphumla lelona linzima ukubala. Siqikelele ngokusekwe kwimizuzu engama-30 ngokutshintsha kwebhetri nganye, iphindaphindwe ngesantya sokusebenza ngeyure. Eli nani liqikelele kakhulu; Impembelelo yokwenyani yemveliso inokuba phezulu kodwa ayinakubalwa ngokuthe ngqo.
Umbane ulinganiselwa kuNyaka woku-1, uqikelelwa kwi-5% yokunyuka kwiMinyaka yesi-2 neyesi-3.
Amanani arhabaxa:
Unyaka 1: Ibhetri $72K + Ugcino ~$18K + uMbane ~$8.5K + Ixesha lokuphumla ~$31K=~$130K
Unyaka 2: Ugcino ~$20K + uMbane ~$9K + Ixesha lokuphumla ~$34K=~$63K
Unyaka 3: Ukutshintshwa kwebhetri $54K + Ugcino ~$21K + uMbane ~$9.5K + Ixesha lokuphumla ~$37K=~$122K
-iminyaka emithathu iyonke malunga ne-$315K, singabali igumbi lebhetri iHVAC kunye neendleko zendawo yomgangatho.
I-Fleet B: iilori ezifikelela kwi-20, i-LFP, i-2-shift operation
Unyaka woku-1 wotyalo-mali lokuqala i-$ 168K, emva koko ngokusisiseko ukugcinwa okuncinci kunye nombane.
Unyaka 1: Ibhetri $168K + Ugcino ~$2.5K + uMbane ~$6K=~$177K
Unyaka 2: Ugcino ~$2.5K + uMbane ~$6K=~$8.5K
Unyaka 3: Ugcino ~$2.5K + uMbane ~$6.5K=~$9K
-iminyaka emithathu iyonke malunga ne-$195K.
Igcinwe malunga ne-$120K, i-breakeven phakathi kweenyanga ze-14 kunye ne-16, kuxhomekeke kwindlela obala ngayo inxalenye yeendleko zexesha lokuphumla.
I-Fleet B ngoku ikwiinyanga ezingama-38 kwaye isemalunga nama-87%. Ngokusekwe kolu jiko lokuthotywa, enye iminyaka emi-3 akufuneki ibe yingxaki. I-Fleet A sele idlule kumjikelo omnye wokutshintsha ibhetri kwaye sele iza kufuna enye.
Imigibe yobungakanani boMmandla
Ndibone abantu abaninzi abathengisa iibhetri "zokhuseleko." I-100Ah iya kwanela kodwa bathenga i-200Ah. Ingqondo eqondakalayo, kodwa le ndlela ineengxaki nge-LFP.
I-LFP ayikuthandi ukuhlala kwi-SOC ephezulu ixesha elide-. Sasinomthengi ogqithise nge-40%, ecinga ukuba i-conservative. Kwiminyaka emibini emva koko, ugcino lwabo lwesakhono kwakubi kakhulu kuneebhetri eziqhelekileyo. Ukujonga iilog ze-BMS kubonise ukuba iibhetri bezihlala zingaphezulu kwe-75% SOC, kunqabile ukuba zibenzulu{6}}zikhutshwe.
Iiseli ezidadayo kumbane omde{0}}ixesha zinyusa ikhalenda ukuguga.
Umgaqo wethu wangoku wokulinganisa: sebenza umva ukusuka kwi-70-80% ye-DoD phantsi kweemeko ezimbi kakhulu-zemeko{2}}% yomda kwanele-unganyoluki.
Nantsi indlela yokubala (usebenzisa eyona projekthi njengomzekelo):
- Okokuqala, misela imfuneko yamandla. Yithi isixhobo siqhuba ngokuqhubekayo kwi-500W kwiiyure ezi-6{3}}yimfuno ye-3000Wh ekrwada.
- Emva koko yongeza i-derating. Ngaphakathi, sisebenzisa i-0.65 factor yezicelo ze-warehouse, ubushushu obugqumayo, i-C{2}} ireyithi, ukuguga, njl njl. Ukugcina okubandayo, sisebenzisa i-0.55.3000Wh ÷ 0.65=4615Wh
- Yongeza umda wokusebenza we-15%.4615Wh ÷ 0.85=5430Wh
- Kwi-12.8V igama: 5430 ÷ 12.8=424Ah.
Ngokucacileyo-ubulumko, khetha ubumbeko lwe-450Ah okanye i-500Ah.
Le ndlela ayizukulingana yonke imeko, kodwa ithembeke ngakumbi kunokulinganisa ngokuthe ngqo kumaxabiso alinganisiweyo.
Isiphumo sePeukert
Bendingazukulibhala eli candelo kuba linempembelelo encinci kwi-LFP, kodwa ekubeni esi sisikhokelo esipheleleyo, esifanele ukukhankanywa.
Ilead{{0}ibhetri zeasidi zibonisa ukwehla okubonakalayo komthamo kumazinga aphezulu e-C-{2}}oku kubizwa ngokuba yi-Peukert effect. Ibhetri ye-AGM eyi-100Ah ekhutshwe kwi-1C (100A) inokuzisa kuphela i-55-60Ah. Amanani edatha yomenzi asekelwe kuvavanyo lwe-C/20 okanye i-C/10, kude nosetyenziso lokwenene.
I-LFP's Peukert exponent ijikeleze i-1.02-1.05, ayinanto. Ingaba ukhupha kwi-0.5C okanye i-1C, umthamo uyahluka ngeepesenti ezimbalwa kuphela.
Ngoko ke ukuba isicelo sakho siquka ugqabhuko oluphezulu-lwangoku{1}}lokukhawulezisa kwe-AGV, ukuphakamisa iforklift, njalo njalo.-umthamo okale we-lead-asidi yinombolo yereferensi; oko ufumana ngokwenene kuxhomekeke kumjikelo womsebenzi. Umthamo olinganisiweyo we-LFP uthembekile ngokwentelekiso.
Yintoni omawuyibukele kunye naBaboneleli
Andiyi kucebisa okanye badmouth nababoneleli abathile apha. Wonke umntu uneenzuzo kunye neengxaki, kwaye iimeko zethu zesicelo zinokungasebenzi kweyakho.
Kodwa kukho izinto ezimbalwa endinokwabelana ngazo:
- Kubathengisi beebhetri kwimarike ngoku, iiseli ziphuma nje kwimithombo embalwa. I-CATL, BYD, GOTION, EVE-aba badlali baphezulu benza ingxelo ngobuninzi besabelo semarike. Kaninzi awuthelekisi umgangatho weseli kodwa uyilo lwe-BMS kunye nokukwazi ukupakisha ukuhlanganisa.
- Xa ucela ababoneleli ngeegophe zokukhupha, cela ubuncinane ezintathu: 0.2C, 0.5C, 1C. Abathengisi abaninzi abancinci abakwazi ukuzivelisa, okanye bakunike iitshathi ezikotshwe komnye umntu. Abathengisi abakhulu baya kubuza malunga nesicelo sakho sokuqala, emva koko banikeze idatha yovavanyo ekujoliswe kuyo.
- Ukuthengisa ukungakwazi ukuphendula imibuzo yobugcisa kwindawo ayithethi kakhulu. Okubalulekileyo kukuba ungafumana idatha esebenzisekayo kwiiyure ezingama-72. Iflegi ebomvu yokwenyani kukuthuliswa kwerediyo emva kokubuza, okanye ukufumana imfumba yempahla yokuthengisa eyenziwe yafana naleyo.
- Funda imigaqo yewaranti ngononophelo. Abathengisi abaninzi babhala "iminyaka eyi-10 okanye imijikelo engama-4000," kodwa ukuprintwa okucokisekileyo kunemida yokuphuma enokuthi ibethwe kwiminyaka emi-6. Abanye bachaza imijikelo ngeendlela ezingenangqondo{7}}10% DoD kunye ne-90% ye-DoD ibala njengomjikelo ofanayo wokwenza iziqinisekiso ezilolo hlobo zingenaxabiso.
- UL 9540A idatha yovavanyo lwe-thermal ebalekayo -abathengisi abasemthethweni be-LFP kufuneka bonke babe nayo. Abo bathandabuzayo bathi "singalungiselela uvavanyo" mhlawumbi khange bavavanye okanye bavavanywe ngeziphumo ezingathandekiyo.
Iingcamango Zokugqibela
Ah to Wh uguquko ngokwalo alukho nzima. Eyona nto inzima kukwazi ukuba ngawaphi amanani omawusetyenziswe kunye nendlela yokutolika iziphumo.
Amanani ephepha elithile ayindawo yokuqala, hayi impendulo. Iibhetri zonke ezilinganiswe kwi-100Ah zinokuzisa amandla okwenene awahlukeneyo phantsi kwee-voltages ezahlukeneyo, iikhemistri, kunye neemeko zokusebenza.
Imigibe esidibene nayo ibhalwe ngasentla. Iprojekthi nganye yahlukile, kwaye imiba ethile ifuna uhlalutyo oluthile. Zive ukhululekile ukundifumana kwi-LinkedIn ukuze ndincokole malunga nemibuzo yokulinganisa efanayo{2}}usenokungabi nazo zonke iimpendulo, kodwa ndiyakuvuyela ukwabelana ngeembono ezithile.
