Ubuchwepheshe Bokupholisa Uketshezi Obuthuthukisiwe kuma-BESS DC Chargers

Impendulo Esheshayo

Ukupholisa uketshezi kumashaja e-BESS DC kuxazulula izinkinga ezimbili ezishisa kakhulu ekushajeni kwe-EV enamandla aphezulu: ukuqeda ukushisa okuvela kuma-elekthronikhi kagesi kanye nezintambo zokushaja, kanye nokugcina amaseli ebhethri emazingeni okushisa afanayo alondoloza impilo yomjikelezo. Amashaja apholile ngomoya angu-480 kW akhipha uketshezi uma isimo sezulu sifudumele futhi adinga izintambo ezinzima kangangokuthi abashayeli bayahluleka ukuzibamba; izinhlelo ezipholile uketshezi zigcina uketshezi oluphelele oluphuma ku-480-600 kW emazingeni okushisa afinyelela ku-50 °C futhi zisebenzisa izintambo ezilula ezingu-500 A+ ezinesisindo esicishe sibe yisigamu kunezinye izindlela ezivamile. Ngasohlangothini lokugcina, amaphakethe e-LFP apholile uketshezi agcina ukusabalala kokushisa kusuka kuseli kuya kuseli ngaphakathi kuka-±2 °C, okwandisa impilo yomjikelezo kusukela kumanani ajwayelekile apholile emoyeni angama-4,000-6,000 imijikelezo kuya ku-8,000-10,000 imijikelezo. Kwabasebenzi, umphumela osebenzayo ungalinganiswa: i-kWh ehanjiswayo ngeshaja ngosuku, impilo yempahla ende, kanye nezindleko eziphansi zobunikazi - yingakho ukupholisa uketshezi manje kuyisakhiwo esizenzakalelayo sama-240 kW nangaphezulu.

Izinto Ezibalulekile Okufanele Uzicabangele

• Ukupholisa uketshezi kugcina umkhiqizo ophelele olinganisiwe emazingeni okushisa aphezulu lapho amashaja apholile emoyeni ehla khona ngo-15-30%.
• Izintambo zokushaja ezipholile ngoketshezi ziletha ugesi oqhubekayo ongu-500 A+ kuma-conductor alula futhi aguquguqukayo — okuvumela ukushaja okuphezulu kwesigaba esingu-600 kW.
• Amaphakethe e-BESS apholiswe ngoketshezi afinyelela ukufana kwezinga lokushisa lamaseli angu-±2 °C, asekela impilo yomjikelezo engu-8,000–10,000 uma kuqhathaniswa no-4,000–6,000 wamaphakethe apholiswe ngomoya.
• Izihibe zokupholisa uketshezi ezivaliwe (ezilinganiselwe yi-IP65, eziqashwe isimo sokupholisa) zisika ukwehluleka kothuli nokugqwala — imbangela ehamba phambili yamaphutha kagesi ezindaweni eziseceleni komgwaqo.
• Nakuba izindleko zokuqala ziphakeme ngo-10-20%, izinhlelo ezipholiswe uketshezi ziletha amandla amaningi ngonyaka angu-5-15% kanye nokuphila isikhathi eside, okuthuthukisa i-TCO yeminyaka eyi-10 ngo-15-30%.

Inkinga Yokushisa Ekushajeni Okunamandla Aphezulu

I-kilowatt ngayinye elethwa ngeshaja ye-DC ikhiqiza ukushisa okulahliwe. Ishaja engu-480 kW esebenza kahle ngo-96% yenqaba cishe i-19 kW yokushisa — okwanele ukushisa izindlu ezimbili ezijwayelekile. Ngaphakathi kwesikhala, lokho kushisa kugxila ezindaweni ezintathu: amamojula kagesi e-AC/DC, ama-converter e-DC/DC, kanye nesixhumi sekhebula lokushaja. Igumbi lebhethri lengeza inkinga yesine: ukushaja kanye nokukhipha amandla okushisa kushisa amaseli ngokwawo, futhi ukushisa kuyisitha sayo yonke inqubo ye-electrochemical kuseli le-lithium.

Sekungamashumi eminyaka ukupholisa umoya ngenkani kusingatha le mithwalo. Kodwa izitayela ezimbili ziye zacindezela ukupholisa umoya ngaphezu komkhawulo wawo:

1. Ukwanda kwamandla.Amashaja asuke ku-60 kW aya ku-240 kW aya ku-480 kW futhi manje amapulatifomu ekilasi lika-600 kW ngaphakathi kwendawo efanayo yokuvala. Ukupholisa umoya akubangeli kahle: amafeni ayaba nomsindo, izihlungi ziyavaleka ngokushesha, futhi indawo yokuvala idinga izikhala eziningi zokungenisa umoya ezivumela uthuli, usawoti kanye nomswakama ukuthi kungene. 2.Iqiniso lokushisa elizungezile.Amashaja omgwaqo omkhulu eSpain, eTexas, eMpumalanga Ephakathi, nase-Australia asebenza endaweni eshisayo engu-40–50°C. Izinhlelo ezipholile emoyeni ziyawohloka njengoba i-heatsink isondela emkhawulweni wayo - okusho ukuthi ishaja enesilinganiso esingu-480 kW elabhorethri ihlinzeka ngo-350–410 kW ngoJulayi.

Isijeziso sokwehlisa amandla asiyona into ecatshangelwayo. Kushaja yomgwaqo omkhulu yamaseshini angu-24 ngosuku, isilinganiso sama-20% sokwehlisa amandla ehlobo sibiza cishe ama-kWh angu-400–600 ngosuku lokulethwa kwamandla alahlekile — amashumi ezinkulungwane zama-kWh ngonyaka, abiza u-$5,000–$15,000 ngenzuzo kuye ngentela kanye nokusetshenziswa.

Ukupholisa Umoya vs Ukupholisa Uketshezi: Ukuqhathaniswa Kobunjiniyela

Ithebula lembula umqondo womklamo: ukupholisa uketshezi akuyona into yokunethezeka kodwa ubuchwepheshe obuvumela isigaba sokusebenza esingu-240 kW–1 MW. Ngaphansi kuka-180 kW, ukupholisa umoya kuhlala kuncintisana ngezindleko; ngaphezu kwalokho, i-physics ithanda uketshezi.

Amakhebula Apholisiwe Ngoketshezi: Ukunika amandla i-500A+ Continuous Current

Ikhebula lokushaja yilapho abashayeli bezwa khona ukwakheka kokushisa ngokomzimba. I-600 Ugesi oqhubekayo odlula kumqhubi wethusi ojwayelekile ukhiqiza ukushisa okukhulu okumelanayo, ngakho-ke izintambo ezipholile emoyeni zivumelana nama-conductor amakhulu kakhulu - umphumela uba ikhebula elisindayo neliqinile kangangokuthi abashayeli - ikakhulukazi abashayeli abadala noma labo abaphatha izixhumi ze-CCS2 ngama-engeli angajwayelekile - bakuthola kunzima ukulisebenzisa.

Ubuchwepheshe bekhebula elipholiswe ngoketshezi buxazulula lokhu ngokujikeleza i-coolant ngeziteshi ezihlanganiswe nejakhethi yekhebula, eduze ngqo nama-conductor athwala ugesi. I-coolant ikhipha ukushisa okuvimbelayo emthonjeni, okuvumela i-cross-section conductor encane ukuthi ithwale ugesi ofanayo:

• Ubuningi bamanje:500–600 Intambo eqhubekayo ngentambo ngayinye, evumela ukushaja okungu-600 kW kuzakhiwo ezingu-800–1000 V ngaphandle kokushisa ngokweqile.
• Isisindo kanye nokuguquguquka:Ilula ngo-40–55% kunezintambo ezipholile ngomoya ezilinganayo, ezinerediyasi egobile kakhulu — ukuthuthukiswa kokuhlangenwe nakho komshayeli ngqo kanye nokunciphisa ukukhathala kwezinhlelo zerobhothi noma ze-plug-in ezizenzakalelayo.
• Izinga lokushisa lesixhumi:igcinwe ngaphansi kuka-55°C kugesi ogcwele, ivikela kokubili izindawo zokuthintana kwesixhumi kanye nendawo yokungena yemoto.

Leli khono libalulekile [kumapulatifomu e-MIDA angu-600 kW apholile ngoketshezi] (https://www.midapower.com/), lapho uhlelo lwekhebula kanye neshaja kwabelana nge-coolant loop kanye nesilawuli esifanayo — umklamo ogcina yonke indlela yokushisa ngaphansi kohlelo olulodwa lokuqapha.

Ukuphathwa Kokushisa Ohlangothini Lwebhethri: Impilo Yomjikelezo Yindaba Yokushisa

Ku-BESS esiteshini sokushaja, ukupholisa akuphathelene nokusebenza okwamanje — kumayelana nokuphila konke. Amaseli e-Lithium-iron-phosphate (LFP) ayancipha ngokushesha ekushiseni okuphezulu futhi, ngokubaluleke kakhulu, ayancipha ngokungalingani lapho iphakethe linezindawo ezishisayo nezibandayo. Iseli elishisayo likhawulela iwindi lokusebenza eliphephile lephakethe lonke futhi linquma isikhathi sokushintsha.

Ukupholisa uketshezi kushintsha indlela yokuguga kwebhethri:

Indlela yokusebenza ilula: i-coolant ewuketshezi enekhono eliphezulu lokushisa kanye nesivinini sokugeleza okuphezulu ikhipha ukushisa kuma-cold plates lapho ixhumana ngqo nama-module eseli. Ngenxa yokuthi indlela ye-coolant ihlanganisa yonke i-module ngokufanayo, iphakethe lisebenza eduze nokushisa kwalo okufanele yonke indawo - ukuguga kancane, ukusebenza kahle okungcono kokubuyela nokubuya, kanye nokunciphisa ubungozi bokuphepha.

Ku-BESS ojikeleza nsuku zonke emsebenzini wokushefa osezingeni eliphezulu, umehluko phakathi kwemijikelezo engu-6,000 nengu-10,000 uyiminyaka emithathu kuya kwemihlanu eyengeziwe yenkonzo - okushintsha imodeli yezezimali kusukela "ekushintsheni kwebhethri phakathi nephrojekthi" kuya "ebhethri lihlala isikhathi eside kuneshaja."

Ukuphepha, Ukuvala, kanye Nesitifiketi

Ukupholisa uketshezi kungenisa uketshezi emishinini enamandla aphezulu, okwenza ubunjiniyela bokuphepha kanye nesitifiketi kube yinto ebalulekile ekwakhiweni. Izakhiwo eziphethe kahle - kanye nalezo ezamukelwa abalawuli kanye nabashuwalensi - zabelana ngalezi zici:

• Izihibe ezivaliwe, ezivaliwenge-dielectric coolant, elinganiswe impilo yonke yemishini, isusa ngokuphelele isigaba sezingozi "zamanzi + ugesi".
• Izindawo ezivalekile ezinesilinganiso se-IP65ngaphandle kwezikhala zokungenisa umoya: uthuli, isifutho sikasawoti, kanye nezinambuzane azikwazi ukungena, okunciphisa ngqo izindlela zokwehluleka kwensimu ezibusa izibalo ze-elekthronikhi eziseceleni komgwaqo.
• Ukutholwa kokuvuza kanye nokuqapha ingcindezingokuvala ishaja okuzenzakalelayo kanye nokubika amaphutha nge-OCPP.
• Ukuqapha isimo se-coolant(ukuqhuba, izinga lokugeleza, izinga lokushisa) kuhlanganiswe ne-EMS, ngezikhawu zesevisi zeminyaka emi-5-10.
• Ukumbozwa kwesitifiketi: IEC 61851, IEC 62196, kanye ne-UL 2594 yesistimu yokushaja; I-UL 9540 / IEC 62933 yesistimu yokugcina; I-IP65 nge-IEC 60529.

Lezi yizimfuneko okufanele zifunwe ku-tender. I-loop evaliwe epholiswe uketshezi ayihlali igcinwa unomphela, kodwa izindlela zayo zokwehluleka azivamile, ziyabikezelwa, futhi ziyabonakala kude — ngokungafani nezinhlelo ze-fan-and-filter eziwohloka buthule njengoba izihlungi zivala.

Ukugcinwa kanye Nezomnotho Womjikelezo Wempilo

Ukuphikisana okuvamile nokupholisa uketshezi yinkimbinkimbi — umuzwa wokuthi amaphampu kanye ne-coolant kumele kube yinkinga kakhulu kunefeni. Idatha yasensimini kanye namarekhodi esevisi ye-OEM alandisa indaba ephambene:

Engeza imiphumela yamandla kanye nemali engenayo — akukho ukuwohloka kwehlobo, ukukhishwa okuphezulu konyaka, impilo yebhethri ende — futhi ukuqhathaniswa kwe-TCO yeminyaka eyi-10 kuyacaca: izinhlelo ezipholiswe ngoketshezi ngokuvamile zinikeza i-TCO ephansi ngo-15-30% kunezilingana ezipholiswe ngomoya ku-240 kW nangaphezulu, naphezu kweprimiyamu yokuqala engu-10-20%. Iprimiyamu ikhokhwa kanye; inhlawulo yokuwohloka kanye nokufakwa esikhundleni kwebhethri kubuya njalo ngonyaka.

Izindleko Eziphelele Zobunikazi Ngokushesha

Isiphetho

Ukupholisa uketshezi okuthuthukisiwe ubuchwepheshe obuchazayo besikhathi sokushaja esinamandla aphezulu. Kugcina umkhiqizo ophelele ekushiseni kwasehlane, kwenza ukushaja okungu-600 kW kusetshenziswe ngokomzimba ngezintambo ezilula ezingu-500 A+, futhi kwandisa impilo yokujikeleza kwe-BESS ngokusebenzisa amazinga okushisa afanayo amaseli - konke lokhu kunciphisa ukugcinwa nokuqeda izindlela zokwehluleka eziqhutshwa uthuli zezindawo zokufaka umoya. Zonke izinto zeketanga lenani - amandla adlulayo, impilo yempahla, ulwazi lomshayeli, izindleko ze-O&M - ziyathuthuka. Kubasebenzisi abachaza u-240 kW nangaphezulu, ukupholisa uketshezi akuyona inketho esezingeni eliphezulu; kuyisisekelo esifanele sobunjiniyela. Buyekeza [iphothifoliyo yokushaja okusheshayo ye-DC epholile ngoketshezi] (https://www.midapower.com/) kanye [nemiklamo yereferensi yokuphathwa kokushisa ye-BESS] (https://www.midapower.com/) ukuze uthole idatha yokusebenza eqinisekisiwe ezimweni ezizungezile zesayithi lakho.

Imibuzo Evame Ukubuzwa

1. Kuyini ukupholisa uketshezi kushaja ye-DC?Ukupholisa koketshezi kujikeleza i-coolant ngamapuleti abandayo neziteshi zekhebula ukuze kukhishwe ukushisa kusuka kuma-elekthronikhi kagesi, amabhethri, kanye nezintambo zokushaja ngqo, esikhundleni sokuthembela kumafeni kanye nomoya ozungezile.

2. Kungani kudingeka ukupholisa uketshezi ukuze kushajwe i-EV enamandla amakhulu?Njengoba ingaphezu kuka-240 kW, ukupholisa umoya akukwazi ukususa ukushisa okulahliwe ngokushesha ngokwanele ezindaweni ezifudumele, okubangela ukwehla kokukhishwa; ukupholisa koketshezi kugcina amandla aphelele futhi kuvumela izintambo ezilula ze-500–600 A.

3. Ukupholisa uketshezi kuthuthukisa kangakanani isikhathi sokusebenza kweshaja?Izinhlelo ezivaliwe ezipholiswe ngoketshezi zisusa ukuhlanza izihlungi kanye nokwehluleka kwamafeni, zinciphisa i-O&M yonyaka ngo-50-70% futhi zisuse ukuwohloka kwehlobo, okungangeza u-5-15% ekulethweni kwamandla ngonyaka.

4. Ingabe izintambo ezipholile ngoketshezi zithwala ngempela i-500 A njalo?Yebo. Izintambo ezipholiswe uketshezi ezineziteshi zokupholisa ezihlanganisiwe ziphethe ugesi oqhubekayo ongu-500–600 A ngenkathi zihlala ziguquguquka futhi zilula — ubuchwepheshe obuvumela ukushaja kwekilasi elingu-600 kW.

5. Ingabe ukupholisa uketshezi kwandisa impilo yebhethri ku-BESS?Yebo. Amaphakethe e-LFP apholiswe ngoketshezi agcina izinga lokushisa lamaseli angu-±2 °C lifana, esekela imijikelezo engu-8,000–10,000 uma kuqhathaniswa no-4,000–6,000 kumaphakethe ajwayelekile apholiswe ngomoya — impilo yesevisi ende engu-50–100%.

6. Ingabe ukupholisa uketshezi kuphephile ngemishini enamandla kagesi aphezulu?Yebo, uma iklanywe kahle: izihibe ezivalwe nge-vacuum zisebenzisa i-dielectric coolant, izivalo zithola i-IP65, futhi ukuqapha ukuvuza/ukucindezela kubangela ukuvala okuzenzakalelayo kanye nama-alamu akude.

7. Iyini inkokhelo yokukhetha ukupholisa uketshezi?Ku-240 kW nangaphezulu, iprimiyamu yokuqala engu-10–20% itholakala ngokususwa kokuqhekeka, ukwehla kwe-O&M, kanye nokugwema ukushintshwa kwebhethri, okuletha izindleko eziphansi ngo-15–30% zeminyaka eyi-10 zobunikazi.