Njengoba ukwamukelwa kwezimoto zikagesi (ama-EV) emhlabeni jikelele kanye nokugcinwa kwamandla avuselelekayo kushesha, isikhathi eside samabhethri e-lithium-ion sesibe yinto ekhathazayo kakhulu. Ingqikithi yalolu daba kukhona ubuchwepheshe obubalulekile ngaphakathiUhlelo Lokuphathwa Kwebhethri (i-BMS)okwaziwa ngokuthi ukulinganisela amaseliLe nqubo ibalulekile ekunqobeni "umphumela wemigqomo," lapho iseli elibuthakathaka kakhulu likhawulela ukusebenza kwephakethe lonke.
Kungani Kuvela Ukungalingani KwebhethriNgokuhamba kwesikhathi, amaseli ngamanye ngaphakathi kwebhethri athuthukisa ukungalingani ngenxa yokubekezelelana kokukhiqiza, ukusatshalaliswa kokushisa okungalingani, noma ukuguga. Ngaphandle kokungenelela, iseli elilodwa elinamandla aphansi noma ukumelana kwangaphakathi okuphezulu lizofinyelela umkhawulo walo we-voltage ngaphambi kwamanye ngesikhathi sokushaja. Lokhu kuphoqa i-Ibhodi yokuvikela ye-BMSukunqamula ugesi ngaphambi kwesikhathi, okushiya ingxenye esele yephakethe ishaje ngokwanele futhi kunciphisa kakhulu amandla angasetshenziswa.
Ukulinganisela Okusebenzayo: Ukuqonda UmehlukoUkuze silwe nalokhu, sesimanjeizixazululo ze-BMS ezihlakaniphilesebenzisa amasu amabili ayinhloko:
Ukulinganisela Okungasebenzi:Le ndlela isebenzisa ama-resistor ukusabalalisa amandla amaningi avela kumaseli ane-voltage ephezulu njengokushisa, okuvumela amaseli ane-voltage ephansi ukuthi abambe. Isebenza kahle futhi ifanele ukusetshenziswa kwamandla aphansi kodwa ayisebenzi kahle kumabhange amakhulu.
Ukulinganisela Okusebenzayo:Leli yikusasa leukulinganiswa kwebhethri le-lithiumEsikhundleni sokuchitha amandla, ama-balancer asebenzayo asebenzisa ama-capacitor noma ama-inductor ukudlulisa amandla kusuka kumaseli ane-voltage ephezulu kuya kwalawo ane-voltage ephansi. Lokhu kudluliswa kwamandla kukhulisa ukusebenza kahle futhi kubalulekile kumandla aphezulu.Amaphakethe ebhethri e-LiFePO4esetshenziswa ekugcinweni kwamandla elanga.
Umthelela Empilweni Yomjikelezo
Ukulinganisela amaseli okuphumelelayo kwenza okungaphezu nje kokubuyisela amandla; kwandisa impilo yomjikelezo webhethri. Ngokugcina umehluko wamandla ($V_{diff}$) ubuncane (ngokuvamile ngaphakathi kuka-30mV noma ngisho no-5mV),Uhlelo Lokuphathwa Kwebhethrikuvimbela amangqamuzana ngamanye ukuthi angacindezeleki ngokweqile.
Kubathengi kanye nabahlanganisi bezimboni ngokufanayo, ukukhetha i-BMS enamakhono okulinganisela aphezulu—kungakhathaliseki ukuthi iyasebenza noma ayisebenzi—yindlela ephumelela kakhulu yokuvikela ukutshalwa kwezimali kwabo. Njengoba ubuchwepheshe buthuthuka, ukulinganisela okusebenzayo kwamandla aphezulu kubeka indinganiso entsha yokuphathwa kwamandla okusimeme.
Isikhathi sokuthunyelwe: Mashi-04-2026
