Umqondo weukulinganisa kweselicishe ijwayelekile kwabaningi bethu. Lokhu kungenxa yokuthi ukuvumelana kwamanje kwamaseli akulungile ngokwanele, futhi ukulinganisa kusiza ukuthuthukisa lokhu. Njengoba nje ungakwazi ukuthola amaqabunga amabili afanayo emhlabeni, awukwazi futhi ukuthola amaseli amabili afanayo. Ngakho-ke, ekugcineni, ukulinganisa kuwukubhekana nokushiyeka kwamaseli, okusebenza njengesilinganiso sokunxeshezelwa.
Yiziphi izici ezibonisa ukungahambisani kweseli?
Kunezici ezine eziyinhloko: I-SOC (State of Charge), ukumelana kwangaphakathi, i-self-discharge current, kanye nomthamo. Nokho, ukulinganisa akukwazi ukukuxazulula ngokuphelele lokhu kungafani okune. Ukulinganisa kunganxephezela kuphela umehluko we-SOC, ngengozi kusingathwe ukungahambisani kokuzikhipha. Kodwa ngokumelana kwangaphakathi namandla, ukulinganisa akunamandla.
Kudalwa Kanjani Ukungahambisani Kweseli?
Kunezizathu ezimbili eziyinhloko: esinye ukungahambisani okubangelwa ukukhiqizwa nokucubungula kwamaseli, kanti esinye ukungahambisani okubangelwa indawo yokusetshenziswa kweseli. Ukungahambisani kokukhiqiza kuvela ezintweni ezifana namasu okucubungula nezinto zokwakha, okuwukwenza lula udaba oluyinkimbinkimbi kakhulu. Ukungahambisani kwemvelo kulula ukukuqonda, njengoba indawo yeseli ngayinye ku-PACK ihlukile, okuholela ekwehlukeni kwemvelo njengokuhluka okuncane kwezinga lokushisa. Ngokuhamba kwesikhathi, le mehluko iyanqwabelana, ibangele ukungezwani kwamaseli.
Kusebenza Kanjani Ukulinganisa?
Njengoba kushiwo ngaphambili, ukulinganisa kusetshenziselwa ukuqeda umehluko we-SOC phakathi kwamaseli. Ngokufanelekile, igcina i-SOC yeseli ngayinye ifana, ivumela wonke amaseli ukuthi afinyelele imikhawulo yamandla kagesi aphezulu naphansi futhi akhiphe kanyekanye, ngaleyo ndlela akhulise umthamo osebenzisekayo wephakethe lebhethri. Kunezimo ezimbili zomehluko we-SOC: eyodwa yilapho amandla eseli efana kodwa ama-SOC ahlukile; enye yilapho amandla eseli kanye nama-SOC kokubili kuhlukene.
Isimo sokuqala (kwesokunxele impela emfanekisweni ongezansi) sibonisa amaseli anomthamo ofanayo kodwa ama-SOC ahlukile. Iseli eline-SOC encane kakhulu lifinyelela umkhawulo wokukhipha kuqala (kuthatha u-25% SOC njengomkhawulo ophansi), kuyilapho iseli eline-SOC enkulu lifinyelela umkhawulo weshaji kuqala. Ngokulinganisa, wonke amaseli agcina i-SOC efanayo ngesikhathi sokushaja nokukhipha.
Isimo sesibili (esesibili ukusuka kwesobunxele emfanekisweni ongezansi) sibandakanya amaseli anamandla ahlukene nama-SOC. Lapha, iseli elinomthamo omncane wokushaja futhi liyakhipha kuqala. Ngokulinganisa, wonke amaseli agcina i-SOC efanayo ngesikhathi sokushaja nokukhipha.
Ukubaluleka Kokulinganisa
Ukulinganisa kuwumsebenzi obalulekile wamaseli amanje. Kunezinhlobo ezimbili zokulinganisa:ukulinganisa okusebenzayofuthiukulinganisa okwenziwayo. Ukulinganisa okwenziwayo kusebenzisa izinto eziphikisayo ukuze kukhishwe, kuyilapho ukulinganisa okusebenzayo kuhilela ukugeleza kweshaji phakathi kwamaseli. Kunenkulumompikiswano mayelana nala magama, kodwa ngeke singene kulokho. Ukulinganisa okwenziwayo kuvame ukusetshenziswa kakhulu ekusebenzeni, kuyilapho ukulinganisa okusebenzayo kuvame kakhulu.
Ukunquma Ukulinganisa Kwamanje kwe-BMS
Ngokulinganisa kwe-passive, kufanele kunqunywe kanjani amandla okulinganisa? Ngokufanelekile, kufanele ibe nkulu ngangokunokwenzeka, kodwa izici ezifana nezindleko, ukunqanyulwa kokushisa, nendawo zidinga ukuvumelana.
Ngaphambi kokukhetha ibhalansi yamanje, kubalulekile ukuqonda ukuthi umehluko we-SOC ungenxa yesimo esisodwa noma sesibili. Ezimweni eziningi, kuseduze nesimo sokuqala: amaseli aqala ngamandla acishe afane kanye ne-SOC, kodwa njengoba esetshenziswa, ikakhulukazi ngenxa yomehluko ekuzikhipheni ngokwawo, i-SOC yeseli ngayinye iyahluka kancane kancane. Ngakho-ke, ikhono lokulinganisa kufanele okungenani liqede umthelela wokuhluka kokuzikhulula.
Uma wonke amaseli abe nokuzikhulula okufanayo, ukulinganisa bekungeke kudingeke. Kodwa uma kukhona umehluko ekuzikhipheni kwamanje, kuzovela umehluko we-SOC, futhi ukulinganisa kuyadingeka ukuze kunxeshezelwe lokhu. Ukwengeza, njengoba isilinganiso sesikhathi sokulinganisa sansuku zonke sinqunyelwe kuyilapho ukuzikhulula kuqhubeka nsuku zonke, isici sesikhathi kufanele futhi sicatshangelwe.
Isikhathi sokuthumela: Jul-05-2024
