Isingeniso:
Ngamagama alula, ukulinganisa isilinganiso se-voltage yokulinganisa. Gcina i-voltage yeiphakethe lebhethri le-lithiumengaguquki. Ukulinganisa kuhlukaniswe kwaba ukulinganisa okusebenzayo kanye nokubhalansa okungenzi lutho. Ngakho-ke uyini umehluko phakathi kokulinganisa okusebenzayo nokulinganisa okwenziwayo kwebhodi lokuvikela ibhethri le-lithium? Ake sibheke nge-Heltec Energy.
Ukulinganisa okusebenzayo kwebhodi lokuvikela ibhethri le-lithium
Ukulinganisa okusebenzayo ukuthi intambo enamandla kagesi aphezulu ifaka amandla entanjeni ene-voltage ephansi, ukuze amandla angamoshi, amandla kagesi aphezulu angehliswa, futhi kungezwe i-voltage ephansi. Lolu hlobo lwamanje lokulinganisa olusebenzayo lungakhetha usayizi wamanje wokulinganisa uwedwa. Ngokuyisisekelo, i-2A isetshenziswa kakhulu, futhi kukhona nezinkulu ezino-10A noma ngaphezulu.
Manje imishini yokulinganisa esebenzayo emakethe ngokuyisisekelo isebenzisa isimiso se-transformer, sithembele kuma-chips abizayo abakhiqizi be-chip. Ngaphezu kwe-chip yokulinganisa, kukhona nezingxenye ezibizayo ze-peripheral ezifana nama-transformer, amakhulu ngosayizi futhi abiza kakhulu.
Umphumela wokulinganisa okusebenzayo ubonakala kakhulu: ukusebenza kahle okuphezulu, amandla amancane aguqulwa futhi awahlakazwa ngendlela yokushisa, futhi ukulahlekelwa kuphela yikhoyili ye-transformer.
I-balanceing current ingakhethwa futhi ijubane lokulinganisa liyashesha. Ukulinganisa okusebenzayo kuyinkimbinkimbi kakhulu ngesakhiwo kunokulinganisa okwenziwayo, ikakhulukazi indlela ye-transformer. Intengo ye-BMS enomsebenzi wokulinganisa osebenzayo izoba phezulu kakhulu kunaleyo yokulinganisa okwenziwayo, okuphinde kube nomkhawulo ngandlela thize ukukhuthazwa kokulinganisa okusebenzayo.I-BMS.
Ukulinganisa okungahambi kahle kwebhodi lokuvikela ibhethri le-lithium
Ukulinganisa kwe-passive kwenziwa ngokuyisisekelo ngokungeza ama-resistors ukuze kukhishwe. Intambo ye-high-voltage yamaseli ikhishwa ngendlela yokukhipha ukushisa endaweni ezungezile, ukufeza umphumela wokupholisa isinqamuleli. Okubi ukuthi ukukhishwa kusekelwe entanjeni ye-voltage ephansi kakhulu, futhi kukhona okungenzeka kube nobungozi lapho ushaja.
I-Passive balancing isetshenziswa ikakhulukazi ngenxa yezindleko zayo eziphansi kanye nesimiso esilula sokusebenza; ububi bayo ukuthi ibhalansile ngokusekelwe emandleni aphansi kakhulu, futhi ayikwazi ukwengeza intambo ye-voltage ephansi, okuholela ekumosheni kwamandla.
Umehluko phakathi kokulinganisa okusebenzayo nokulinganisa kokwenziwa
I-Passive balancing ifanele umthamo omncane, i-low-voltageamabhethri e-lithium, kuyilapho ukulinganisa okusebenzayo kufaneleka ku-high-voltage, amandla amakhulu wezinhlelo zokusebenza zephakethe lebhethri le-lithium.
Ubuchwepheshe bokushaja bokulinganisa obusetshenziswa ngokuvamile buhlanganisa ukushaja kokulinganisa kwe-shunt resistor, ukushaja kokulinganisa kokumelana kwe-shunt, ukushaja okumaphakathi kwebhethri ye-voltage, ukushintsha ukushaja kokulinganisa kwe-capacitor, ukushaja kokulinganisa kwe-buck converter, ukushaja kokulinganisa kwe-inductor, njll. Lapho ushaja iqoqo le-lithium Uchungechunge, ibhethri ngalinye kufanele lishajwe ngokulinganayo, ngaphandle kwalokho ukusebenza nempilo yeqembu lonke lebhethri izothinteka ngesikhathi sokusetshenziswa.
| Izici | Ukulinganisa okwenziwayo | Ukulinganisa okusebenzayo |
| Isimiso sokusebenza | Sebenzisa amandla engeziwe ngama-resistors | Linganisa amandla ebhethri ngokudluliswa kwamandla |
| Ukulahlekelwa Amandla Okukhulu | amandla amoshwa njengokushisa Amancane | ukudluliswa kahle kwamandla kagesi |
| Izindleko | Phansi | Phezulu |
| Inkimbinkimbi | Ubuchwepheshe obuphansi, obuvuthiwe | Kudingeka idizayini yesekethe ephezulu, eyinkimbinkimbi |
| Ukusebenza kahle | Okuphansi, ukulahlekelwa ukushisa | Phezulu, cishe akukho ukulahlekelwa kwamandla |
| Kuyasebenza | Izimo Amaphakethe ebhethri amancane noma izinhlelo zokusebenza ezishibhile | Amaphakethe ebhethri amakhulu noma izinhlelo zokusebenza ezisebenza kahle kakhulu |
Umgomo oyisisekelo wokulinganisa okwenziwayo uwukuthola umphumela wokulinganisa ngokumosha amandla engeziwe. Ngokuvamile, amandla engeziwe kuphakethe lebhethri le-overvoltage aguqulelwa ekushiseni ngesixhasi, ukuze umthamo webhethri uhlale unjalo. Inzuzo ukuthi i-passive balancing circuit ilula futhi izindleko zokuklama nokuqaliswa ziphansi. Futhi ubuchwepheshe bokulinganisa okwenziwayo buvuthwe kakhulu futhi busetshenziswe kabanzi ezindaweni eziningi ezishibhile nezincaneamaphakethe ebhethri.
Okubi ukuthi kunokulahlekelwa okukhulu kwamandla ngenxa yokuguqulwa kwamandla kagesi abe ukushisa ngenxa yokumelana. Ukusebenza kahle okuphansi, ikakhulukazi kumaphakethe ebhethri amakhulu, ukumosheka kwamandla kubonakala kakhulu, futhi akufanelekile ezinhlelweni zokusebenza zebhethri ezisebenza kakhulu. Futhi ngenxa yokuthi amandla kagesi aguqulwa abe ukushisa, angabangela ibhethri ukuthi lishise kakhulu, kuthinte ukuphepha nempilo yesistimu iyonke.
Ukulinganisa okusebenzayo kufinyelela ukulinganisa ngokudlulisela amandla kagesi engeziwe esuka kumabhethri anamandla kagesi aphezulu ukuya kumabhethri ane-voltage ephansi. Le ndlela ngokuvamile ilungisa ukusatshalaliswa kwamandla phakathi kwamabhethri ngokushintsha izinto zamandla, iziguquli ze-buck-boost noma ezinye izingxenye ze-elekthronikhi. Inzuzo isebenza kahle kakhulu: amandla awachithwanga, kodwa alinganiswe ngokudluliswa, ngakho-ke akukho ukulahlekelwa ukushisa, futhi ukusebenza kahle kuvame ukuphakama (kufika ku-95% noma ngaphezulu).
Ukonga amandla: Njengoba ingekho imfucuza yamandla, ilungele umthamo omkhulu, ukusebenza okuphezuluibhethri ye-lithiumamasistimu futhi anganweba impilo yesevisi yephakethe lebhethri. Kusebenza kumaphakethe amakhulu ebhethri: Ukulinganisa okusebenzayo kufaneleka kakhulu kumaphakethe ebhethri amakhulu, ikakhulukazi ezimeni ezifana nezimoto zikagesi namasistimu okugcina amandla, futhi kungathuthukisa kakhulu ukusebenza kahle kwesistimu nokubekezela.
Okubi ukuthi ukuklama nokuqaliswa kokulinganisa okusebenzayo kuyinkimbinkimbi, ngokuvamile kudinga izingxenye eziningi ze-elekthronikhi, ngakho-ke izindleko ziphezulu. Ubunkimbinkimbi bobuchwepheshe: Ukulawulwa okunembayo kanye nomklamo wesifunda kuyadingeka, okunzima futhi kungase kwandise ubunzima bokuthuthukiswa nokugcinwa.
Isiphetho
Uma kuwuhlelo olushibhile, oluncane noma uhlelo olunezidingo eziphansi zokulinganisa, ukulinganisa okwenziwayo kungakhethwa; kumasistimu ebhethri adinga ukuphathwa kahle kwamandla, umthamo omkhulu noma ukusebenza okuphezulu, ukulinganisa okusebenzayo kuyisinqumo esingcono.
I-Heltec Energy yinkampani ethuthukisa futhi yakhe imishini yokuhlola ibhethri esebenza kahle kakhulu kanye nokulungisa, futhi inikeza izixazululo zokukhiqiza okusemuva, ukukhiqizwa kokuhlanganiswa kwamaphakethe, nokulungisa amabhethri amadalaamabhethri e-lithium.
I-Heltec Energy ibilokhu iphikelela ekusungulweni okuzimele, ngomgomo oyinhloko wokuhlinzeka ngemikhiqizo ethembekile futhi engabizi kakhulu embonini yebhethri ye-lithium, kanye nomqondo wesevisi othi "ikhasimende kuqala, ubuhle bekhwalithi" ukudala inani lamakhasimende. Ngesikhathi sokuthuthuka kwayo, inkampani inethimba lonjiniyela abakhulu embonini, eliqinisekisa ngempumelelo ukuthuthuka nokusebenza kwemikhiqizo yayo.
Uma unemibuzo noma ungathanda ukufunda okwengeziwe, sicela ungangabazifinyelela kithi.
Isicelo sekhotheshini:
U-Jacqueline:jacqueline@heltec-bms.com/ +86 185 8375 6538
Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
U-Nancy:nancy@heltec-bms.com/ +86 184 8223 7713
Isikhathi sokuthumela: Nov-26-2024