Ukuhlaziywa kwendlela yebhalansi yokushaja esebenzayo

UMnyango Wobunjiniyela Bezimo Zezimoto we-Infineon Technologies ezinze eMunich usanda kuthola umsebenzi wokuthuthukisa izimoto zikagesi. Imoto kagesi iyimoto eshayelekayo, ebaluleke kakhulu ekuboniseni ukusebenza kukagesi kwezimoto zikagesi eziyingxubevange. Imoto izonikezwa amandla ngephakethe elikhulu lebhethri ye-lithium, futhi abathuthukisi bayaqonda ukuthi ibhethri elilinganiselwe liyadingeka. Kulesi simo, udinga ukukhetha ukudluliswa kwamandla okuzenzakalelayo phakathi kwamabhethri esikhundleni sendlela evamile yokulinganisa ukushaja okulula. Uhlelo lokulinganisa lokuzikhokhisa abaluthuthukisile lunganikeza imisebenzi ephakeme ngezindleko ezifanayo nohlelo oluyisibopho.

Isakhiwo sebhethri

Amabhethri e-Ni-Cd ne-Ni-MH abusa imakethe yamabhethri iminyaka eminingi. Nakuba ibhethri ye-lithium ye-18650 ingumkhiqizo osanda kungena emakethe, isabelo sayo semakethe sikhuphuka ngokushesha ngenxa yentuthuko enkulu ekusebenzeni. Amandla okugcina amabhethri e-lithium ayamangalisa, kodwa noma kunjalo, umthamo webhethri elilodwa awanele ku-voltage noma wamanje ukuze uhlangabezane nezidingo zenjini eyi-hybrid. Amabhethri amaningi angaxhunywa ngokuhambisana ukuze kwandiswe amandla ebhethri amanje, futhi amabhethri amaningi angaxhunywa ngochungechunge ukuze kwandiswe amandla ogesi webhethri.

Izihlanganisi zebhethri zivame ukusebenzisa ama-akhronimi ukuchaza imikhiqizo yazo yebhethri, njenge-3P50S, okusho ukuthi iphakethe lebhethri elakhiwe amabhethri ahambisanayo angu-3 namabhethri angu-50 ngochungechunge.

Isakhiwo se-modular silungele ukuphatha amabhethri, okuhlanganisa uchungechunge oluningi lwamaseli ebhethri. Isibonelo, ohlwini lwebhethri le-3P12S, wonke amaseli ebhethri angu-12 axhunywe ochungechungeni ukuze akhe ibhulokhi. Lawa mabhethri angalawulwa futhi alinganiswe yisekethe ye-elekthronikhi egxile kusilawuli esincane.

I-voltage ephumayo yemojuli yebhethri incike enanini lamabhethri axhunywe ochungechungeni kanye nomthamo webhethri webhethri ngalinye. I-voltage yebhethri ye-lithium ngokuvamile iphakathi kuka-3.3V no-3.6V, ngakho-ke i-voltage yemojuli yebhethri icishe ibe phakathi kuka-30V no-45V.

Amandla ayingxubevange anikezwa amandla kagesi angama-450 volt DC. Ukuze unxephezele ushintsho ku-voltage yebhethri nesimo sokushajwa, kufanelekile ukuxhuma isiguquli se-DC-DC phakathi kwephakethe lebhethri nenjini. Isiguquli siphinde sikhawulele ukuphuma kwamanje kwephakethe lebhethri.

Ukuze uqinisekise ukuthi isiguquli se-DC-DC sisebenza esimweni esingcono kakhulu, umthamo webhethri kufanele ube phakathi kuka-150V ~ 300V. Ngakho-ke, amamojula webhethri angu-5 kuye kwayi-8 ayadingeka ochungechungeni.

isidingo sokulinganisela

Uma i-voltage idlula umkhawulo ovunyelwe, ibhethri ye-lithium yonakaliswa kalula (njengoba kuboniswe kuMfanekiso 2). Uma i-voltage idlula umkhawulo ongaphezulu nophansi (2V wamabhethri e-lithium e-nano-phosphate, u-3.6V ngomkhawulo ongaphezulu), ibhethri lingase lonakale ngendlela engenakulungiseka. Ngenxa yalokho, okungenani ukuzikhipha kwebhethri kuyasheshiswa. I-voltage ephumayo yebhethri izinzile kububanzi besimo sokushaja esibanzi (SOC), futhi cishe abukho ubungozi bamandla kagesi obudlula izinga phakathi kwebanga eliphephile. Kodwa kuzo zombili iziphetho zebanga eliphephile, ijika lokushaja liphakeme kakhulu. Ngakho-ke, njengesilinganiso sokuvimbela, kuyadingeka ukuqapha ngokucophelela i-voltage.

Uma i-voltage ifinyelela inani elibalulekile, inqubo yokukhipha noma yokushaja kufanele imiswe ngokushesha. Ngosizo lwesekethe yebhalansi eqinile, i-voltage yebhethri efanelekile ingabuyiselwa esikalini esiphephile. Kodwa ukwenza lokhu, umjikelezo kufanele ukwazi ukudlulisa amandla phakathi kwamaseli lapho i-voltage yanoma iyiphi iseli eyodwa iqala ukuhluka ku-voltage yamanye amaseli.

indlela yebhalansi yokushaja

1. Isibopho esingokwesiko: Kusistimu yokuphatha ibhethri evamile, ibhethri ngalinye lixhunywe kusinqamuleli sokulayisha ngokusebenzisa iswishi. Le sekhethi ephoqelelwe ingakhipha amabhethri akhethiwe ngawodwana. Nokho, le ndlela ingashajwa kabusha kuphela ukuze kucindezelwe ukukhuphuka kwamandla kagesi ebhethri eliqine kakhulu. Ukuze unciphise ukusetshenziswa kwamandla, isekethe ngokuvamile ivumela kuphela ukukhishwa kwamandla amancane angu-100 mA, okuholela ebhalansi yokushaja ethatha amahora ambalwa.

2. Indlela yokulinganisa ezenzakalelayo: Kunezindlela eziningi zokulinganisa ezizenzakalelayo ezihlobene nezinto, zonke ezidinga into yokugcina amandla ukuze iphathe amandla. Uma i-capacitor isetshenziswa njengento yokugcina, ukuyixhuma kunoma iyiphi ibhethri kudinga amaswishi amaningi. Indlela ephumelela kakhulu ukugcina amandla endaweni kazibuthe. Isici esiyinhloko kumjikelezo yi-transformer. I-prototype yasungulwa ithimba lokuthuthukisa i-Infineon ngokubambisana neVogt Electronic Components Co., Ltd. Imisebenzi yayo imi kanje:

A. Dlulisa amandla phakathi kwamabhethri

Xhuma i-voltage yamaseli amaningi ku-voltage eyisisekelo yokokufaka kwe-ADC

Isekhethi isebenzisa umgomo we-reverse scan transformer. Le transformer ingagcina amandla endaweni kazibuthe.