Momwe Mungasankhire 48V LiFePO4 BMS ya Mabatire Osungira Mphamvu Zapakhomo

Kusankha njira yoyendetsera mabatire (BMS) ya phukusi losungiramo zinthu la 48V LiFePO4 kumayamba ndi kapangidwe ka batire—osati dzina la chinthucho. Zofunikira kwambiri ndi kuchuluka kwa maselo omwe ali mumndandanda, mphamvu yotulutsa ndi kuyitanitsa, kulumikizana kwa inverter, kutentha, ndi dongosolo lililonse lolumikizira mapaketi nthawi imodzi.

Bukuli limathandiza opanga mabatire ndi ophatikiza magetsi kuti akonzekere zofunikirazo ndikuzindikira njira za DALY zosungiramo zinthu m'nyumba zomwe zimafuna kuunikiridwanso kwaukadaulo.

“16S” amatanthauza maselo 16 kapena magulu a maselo olumikizidwa motsatizana. Pogwiritsa ntchito mphamvu yamagetsi ya LiFePO4 ya 3.2V, mphamvu yamagetsi ya phukusi ndi 16 × 3.2V = 51.2V. Mapaketi otere nthawi zambiri amafotokozedwa ngati machitidwe a 48V; “48V” yokha siizindikira kuchuluka kwa mndandanda.

Tsimikizirani momwe maselo amagwirira ntchito, kuchuluka kwa ma series, malire a ma voltage a opanga maselo, ndi kuchuluka kwa ma voltage ogwiritsira ntchito batri musanasankhe BMS. Phunziro la DALY 16S la ma wiring likupezeka kuti mumvetsetse kuzindikira kwa ma series-cell, koma sililowa m'malo mwa chithunzi cha ma wiring chomwe chili ndi chitsanzo chenicheni cha LK kapena LM.

Yerekezerani mphamvu yotulutsa mphamvu ya batri kuchokera ku mphamvu yotulutsa ya AC yopitilira ya inverter, mphamvu ya batri yotsika kwambiri, ndi mphamvu ya inverter: mphamvu ya DC yoyerekeza (A) ≈ mphamvu yotulutsa ya AC (W) ÷ [mphamvu ya batri (V) × mphamvu].

Mwachitsanzo, 5,000W ÷ (48V × 0.90) ≈ 116A. Pa voltage yocheperako ya batri ya 44V, kuwerengera komweko kumapereka pafupifupi 126A. Ziwerengerozi zikuwonetsa chifukwa chake chizindikiro cha 48V chokha sichikwanira; palibe chiŵerengero chilichonse chomwe chimatsimikizira mulingo womaliza wa BMS.

Yang'anani mphamvu yopitilira ya inverter ndi nthawi yopitilira ya surge, mphamvu yochepa ya batri yogwira ntchito, kuchuluka kwa kutulutsa komwe kuloledwa pa paketi, BMS continuous ndi peak ratings, kutentha kwa ntchito, ndi mikhalidwe yozungulira. Payokha onani mphamvu yayikulu yochaja kuchokera ku charger kapena inverter ndi ma specifications a batri cell. Musaganize kuti kusankha mlingo wotsatira wapamwamba kwambiri kumatsimikizira kuti ndi woyenera.

Tsimikizirani ngati inverter ikufunika kulumikizana kwa batri kapena ingagwire ntchito motsatira njira yowongolera yokhazikika pamagetsi yotsimikizika. CAN (Controller Area Network) ndi RS485 ndi ma interface olumikizirana; kufananiza mawonekedwe sikutsimikizira kuti BMS ndi inverter amagwiritsa ntchito mauthenga omwewo kapena malamulo owongolera.

Perekani wopanga inverter ndi chitsanzo chenicheni, protocol ndi mtundu wofunikira, ndi zikalata zilizonse zolumikizira zomwe zilipo. Funsani DALY kuti atsimikizire chithandizo kapena kuthekera kwa kusintha kwa protocol yosinthidwa mwamakonda pa kasinthidwe ka BMS komwe kakuperekedwa. Musatenge mawonekedwe a CAN/RS485 wamba ngati chiganizo chogwirizana.

Chongani kutentha komwe kumaloledwa ndi wopanga ma cell kuti azitha kuyatsa ndi kutulutsa mphamvu komanso malo omwe akufunira kuyika. Malire a kuyatsa nthawi yozizira komanso kufunikira kulikonse kotenthetsera kuyenera kuyesedwa malinga ndi ma cell ndi makina enieni. Musaganize kuti DALY BMS inayake ikuphatikiza kulamulira kutentha pokhapokha ngati yatsimikiziridwa pa kasinthidwe kameneko.

Kulinganiza maselo kungathandize kuthana ndi kusiyana pakati pa maselo olumikizidwa ndi mndandanda, koma sikungalowe m'malo mwa kufanana kwa maselo kapena kukonza kapangidwe kosayenera ka batri. Tsimikizani ngati BMS yomwe ikuperekedwa ikugwiritsa ntchito kulinganiza kosasinthika kapena kasinthidwe kosankha kogwira ntchito ndikutsimikizira momwe zinthu zilili panopa komanso momwe zimagwirira ntchito kuti zigwirizane ndi njira yeniyeniyo.

Ngati kukhazikitsa kumagwiritsa ntchito mabatire ambiri nthawi imodzi, tsimikizirani kuti BMS yayikidwa pa paketi iliyonse, kapangidwe ka magetsi ndi chitetezo, kufananiza ma voltage a paketi, kulumikizana, kupatula zolakwika, ndi njira yogwiritsira ntchito. Chiwerengero chachikulu cha mapaketi ofanana si umboni wakuti kuphatikiza kulikonse kwa mapaketi ndi ma inverter kudzagwira ntchito limodzi mosamala.

Pemphani kuti muwunikenso dongosolo kuti mudziwe momwe zinthu zilili. Njira yofotokozera mwatsatanetsatane ya mawaya ndi kukhazikitsa mawaya ndi yoyenera m'mabuku ogwiritsira ntchito zinthu ndi zolemba za kapangidwe ka makina, osati muzosankha izi.

Pepala laposachedwa la DALY la m'badwo wachinayi la LK/LM lomwe laperekedwa m'nkhaniyi likulemba makonzedwe a LiFePO4 8S/16S ndi njira zotsatirazi zotsatsira/kutulutsa mphamvu mosalekeza. Izi ndi ziwerengero zoyenera, osati zofanana zokha ndi inverter inayake.

LK: 100A continuous charge/discharge rating. LM: 150A kapena 200A continuous charge/discharge rating. Pepala lofananizira limatchulanso optional active balancing; musaganize kuti unit iliyonse ili ndi izi.

Pa kapangidwe komwe kakuyembekezeka kujambula pafupifupi 116A pansi pa mkhalidwe umodzi wogwirira ntchito, 100A continuous rating sangakwaniritse mkhalidwe womwewo woyembekezeredwa. Njira ya 150A ingakhale yoyenera kuyesedwa, koma kusankha komaliza kumafunabe kuwunika kwa voteji yocheperako, ma current peaks, charge current, temperature conditions, configuration, ndi deta yeniyeni yazinthu.

Kuti muwunikenso koyamba zaukadaulo, perekani izi: kuchuluka kwa ma batri ndi kuchuluka kwa ma series (mwachitsanzo, 16S LiFePO4); mphamvu ya paketi (Ah); malire a voltage ya selo; wopanga inverter/model ndi mphamvu yopitilira/yokwera; kuyitanitsa ndi kutulutsa mphamvu yopitilira; mphamvu yapamwamba ndi nthawi yayitali; zofunikira zolumikizirana; kutentha komwe kumayembekezeredwa kuyikidwa; chiwerengero cha ma paketi omwe ali ofanana; ndi kuchuluka kwa oda komwe kumayembekezeredwa.

DALY ingagwiritse ntchito izi kuti iwunike momwe LK/LM imagwirira ntchito, kuzindikira zomwe zikufunikabe, ndikukambirana zikalata zaukadaulo zomwe zilipo komanso njira zotsatirira mawu. Kusankha komaliza kwa chitsanzo ndi chithandizo cha protocol ziyenera kutsimikiziridwa kuti zigwiritsidwe ntchito.