Sabuwar hanya da hanyar amfani da tsani don gano halin lafiyar batirin lithium mai ƙarfi

著者：Iflowpower – Dodávateľ prenosných elektrární

Jami&39;ar Jami&39;ar Wutar Lantarki ta kasar Sin, dakin gwaje-gwaje na Key na kasar Sin, Cibiyar Binciken Fasahar Motoci ta kasata Co., Ltd. A cikin "Jarida na Fasahar Lantarki", "Takardar ita ce" taken takarda "dangane da gano yanayin kiwon lafiya da kuma nazarin amfani da tsani "), daidai gwargwado cewa sel guda ɗaya a cikin fakitin baturi na lithium-ion Palectural jihar (SOC) da yanayin kiwon lafiya (SOH) yana da mahimmanci don tsawaita rayuwar fakitin baturi na lithium-ion da kuma amfani da tsani.

Wannan labarin ya dogara ne akan tsarin batir na thevenin na biyu daidai samfurin kewayawa, kuma yana amfani da daidaitawa na Kalman filter (AUKF) algorithm zuwa kimantawa na ainihin lokacin baturi SOC da juriya na ciki ohm, kuma bisa ga juriya na ciki da kuma baturi SOH wasiku, Ƙimar baturi SOH a ainihin lokacin. Ƙirƙiri baturi a ƙarƙashin yanayi daban-daban guda biyu, tabbatar da yiwuwa da daidaiton hanyar. Ta hanyar ƙididdige yanayin lafiyar kowane cell guda ɗaya da fakitin baturi a rukunin baturin lithium ion, baturin monomer ɗin da bai cancanta ba yana matsayi, kuma an haɗa fakitin baturi, kuma an ƙirƙiri hanyar amfani da tsani na fakitin batirin lithium-ion bayyanannen abin hawan lantarki.

Haɓaka amfani da albarkatu na batir lithium-ion mai ƙarfi na sharar gida. Tare da karuwar sabon makamashi na makamashin duniya, gurɓataccen yanayi yana karuwa, haɓaka sababbin motocin makamashi ya zama muhimmin aiki ga ci gaban masana&39;antu na zamani. Daga cikin su, motocin lantarki sun sami kulawa tare da inganci da ƙananan ƙazanta.

Fakitin baturin lithium-ion mai ƙarfin lithium-ion shine hanyar haɗin wutar lantarki ɗaya tilo a cikin motar lantarki. Lokacin da fakitin baturin lithium-ion aikin na&39;urar wutar lantarki ya ragu zuwa 80% na ainihin aikin, ba zai dace da amfani da motocin lantarki ba. Tsarin kera na fakitin baturi na lithium-ion ya ci gaba, ko da bayan yin ritaya, har yanzu yana kiyaye babban aminci da makamashin lantarki.

Idan an dawo da waɗannan baturan lithium-ion, za su haifar da ɓarna mai yawa, don haka za su iya yin la&39;akari da matakan da batir lithium ion da suka yi ritaya. sake sake yin amfani da su. Saboda bambancin digiri na fitar da kai da zafin yanayi a cikin amfani da batir monomer daban-daban wajen amfani da sel guda ɗaya, ƙarfin, juriya na ciki, da ƙarfin lantarki na baturi mai ƙarfi na lithium-ion mai ritaya, kowane baturi na monomer ya sami bambanci.

Don haka, don cimma madaidaicin amfani da tsani, sake tantance yanayin kowace tantanin halitta a cikin fakitin baturin lithium ion ikon lithium. Yanayin abin hawan lantarki yana da yanayin baturin lithium ion ta baturi (stateofcharge, SOC) da yanayin kiwon lafiya (stateofhealth, SOH). SOC rabon rabo ne na ƙarfin saura na yanzu da ƙarfin ƙima.

Yana iya nuna ragowar ƙarfin baturin kai tsaye, kuma kai tsaye yana nuna matsakaicin iyakar tuƙi na abin hawan lantarki. Ɗaya daga cikin mahimman sigogin yanke shawara na sarrafa ƙarfin baturi na lithium-ion; SOH baturi ne Matsakaicin adadin wutar lantarki da ƙididdiga na halin yanzu ana iya cajin, yana nuna girman tsufa na baturi, yana nunawa a cikin raguwa a cikin abu mai aiki a cikin baturi, ainihin ƙarfin yana raguwa, ƙarfin ciki yana ƙaruwa, da dai sauransu. Yi ƙididdigewa daidai yanayin baturin baturin lithium-ion, wanda shine ɗayan mahimman fasahar baturin lithium-ion mai ƙarfi.

Hanyar ƙimar baturi SOC za a iya raba zuwa kashi huɗu masu zuwa: Hanyar maki 1Amity: Wannan hanyar tana cikin yanayin buɗaɗɗen madauki, farawa daga ma&39;anar SOC, ta hanyar ƙididdige lissafin samfurin halin yanzu zuwa lokacin batirin SOC. A cikin yanayin da ƙimar farko ta SOC ta kasance daidai, hanyar tana kiyaye babban madaidaicin a cikin ɗan gajeren lokaci, amma yayin da lokacin aiki ya karu, daidaiton wannan hanyar yana raguwa da ƙasa saboda rashin tabbas na rashin tabbas na Cullen inganci da gwajin halin yanzu. Ba za a iya amfani da dogon lokaci ba.

2 Features Parameter: Halayen baturin yawanci shine buɗewar da&39;irar baturin (Open-Circuitvoltage, OCV) da juriya na ciki. Hanyar wutar lantarki ta buɗewa tana samun daidaitaccen ƙimar SOC ta hanyar auna madaidaicin dangantakar baturi OCV da SOC, amma ƙimar ƙarfin buɗewar baturin ya fi wahalar samu, tsayawa na dogon lokaci, yana haifar da babban kuskure. Auna juriya na ciki ya fi rikitarwa saboda kayan aikin gwaji, kuma ba zai iya biyan buƙatun ƙididdiga na kan layi ba.

3 Data Driven: Ana yin wannan hanyar ta hanyar tuƙin bayanai, sannan ana amfani da ita don kimanta matsayin baturi. Wannan hanyar tana da mahimmanci don dabaru masu ban mamaki, cibiyar sadarwar jijiyoyi ta wucin gadi, cibiyar sadarwar jijiyoyi mara nauyi da na&39;ura mai goyan baya. Irin waɗannan hanyoyin sun dogara da yawa akan cikawa da ingancin bayanan horo.

A lokacin tsufa na baturi, tare da canje-canje a cikin halayen baturi, bayanan horo za su zama marasa aiki a hankali, don haka suna tasiri tasirin da aka kiyasta. 4 Hanyar ƙididdigewa bisa hanyoyi daban-daban: irin wannan hanyar ƙididdigewa ta dogara ne akan ƙirar baturi, wanda shine yanayin aiki na rufaffiyar. Mafi yawan wakilcin haɓaka haɓaka fasahar Karman tacewa, haɓakawa biyu fasahar tace Kalman, fa&39;ida mai ƙarfi Kalman Fasahar tacewa, fasahar tace barbashi, da sauransu.

Irin waɗannan hanyoyin an haɗa su ta zahiri tare da hanyoyin kimanta SOC da yawa don guje wa rauni, ba su damar bin diddigin SOC yadda ya kamata, shine jagorar halin yanzu na ƙimar SOC na yanzu. Hanyar kimanta batirin SOH da ke akwai yana da da yawa: 1 Hanyar fitarwa kai tsaye: Hanya ce ta kimanta tasirin lodi akan batirin SOH. Wannan hanya tana da rikitarwa, kuma SOH na baturi za a gwada shi.

Ba za a iya gane sa ido kan layi ba; Aunawa Hanyar impedance na ciki: SOH na baturi za a iya siffanta shi da dangantakar ohmic ciki juriya, kuma ohmic interformance na baturi yana samuwa ta hanyar aunawa bincike, don haka ƙididdige SOH na baturi don samun baturi (Electrochemical Impedance Analysis) (EIS): Wannan hanyar mahimmancin tunani shine a yi amfani da nau&39;i na nau&39;i na siginar sinadirai, da kuma nazarin bayanan da aka samu ta hanyar siginar siginar sinusoid. na tsufa na baturi, wannan hanya ya kamata ya zama babban adadin bayanan gwaji, ƙananan amfani; 4 nazarin sinadarai: wannan hanya an kiyasta SOH ta hanyar auna yawan canjin electrolyte, amma dole ne hanyar ta lalata tsarin baturi ta yadda baturin ba zai iya amfani da shi ba; 5 ƙididdiga na zamani: mahimmancin Kalman tace algorithm, algorithm na cibiyar sadarwa na jijiyoyi, algorithm mai ban mamaki, da sauransu. Hanyar za ta iya tantance yanayin baturin da inganci, kuma ainihin tasirin aikace-aikacen ya fi kyau. Dangane da matsaloli kamar matsayin baturi na yanzu, bambancin ba shi da kyau, wannan takarda tana amfani da tsari na biyu THEVENINININOININ Daidaitaccen Tsarin Zaure na Batirin Lithium Ion, kuma yana amfani da adaptiveuntedkalmanfilter, Aukf) algorithm zuwa kimanta ainihin-lokaci.

Adaptive elsencing algorithm algorithm hade tare da elsencing Kalman tace algorithm da tsawaita Kalman algorithm, kafa dangantaka ta cyclic, sanannen sigogin baturi yana ƙididdige yanayin baturi, sa&39;an nan kuma yana amfani da matsayin baturi a matsayin sanannen adadin ƙididdigar ƙididdiga, a cikin wannan nau&39;in ƙididdigewa na maimaitawa, ƙididdigewa na ainihi na baturi SOC da ohm juriya na ciki. Ana iya ƙididdige ƙimar batirin SOH a ainihin lokacin ta amfani da juriya na ohmic da SOH baturi. Kuma ta hanyar ƙididdige yanayin lafiyar kowace naúrar tantanin halitta da fakitin baturi a cikin fakitin baturi, ana ƙididdige ƙimar fakitin baturin, kuma an haɓaka hanyar yin amfani da tsani na fakitin batirin lithium-ion mai ƙarfin abin hawa.

Hoto 1 Tsarin Batir na biyu THEVENIN Daidaitan Samfuran Ƙarshe 1) Dangane da tsari na biyu THEVENIN Matsakaicin Tsarin Batir na baturi, an ƙera shi don daidaitawa sauran Kalman tace algorithm. Gwajin yana tabbatar da daidaiton daidaitawa na Calman tace algorithm a cikin yanayi daban-daban guda biyu na yanzu, kuma algorithm ɗin baya iyakance ta yanayin yanzu, kuma algorithm na iya gano algorithm. Omhene juriya.

2) Wannan labarin yana amfani da ilimin kimiyyar ohm na tsarin tantanin halitta na lokaci, sannan yana amfani da juriya na ciki da aikin SOH na baturi don kimanta batirin SOH, da kuma tabbatar da ƙimar ƙimarsa ta hanyar gwaje-gwaje. Wannan algorithm yana da sauri, babban madaidaici, kuma yana da kyakkyawan aiki. 3) Wannan takarda, ta hanyar kimanta SOH da matsakaicin batirin monomer na kowane tantanin halitta a cikin baturin lithium-ion, batirin monomer mara izini, haɗin fakitin baturi, yana tsara ƙa&39;idodin tsufa na abin hawa na lantarki lithium-ion baturi fakitin Jikin maye gurbin baturi Hanyar, fahimtar albarkatun amfani da sharar gida mai ƙarfi hanyar lithium ion batteries.

4) Adaptive elsencing Kalman tace algorithm ba zai iya kawai kimanta SOC da ohm na ciki juriya na baturi, a kan tushen baturi model, jihar sarari model an kafa don daban-daban sigogi, da kuma polarization halaye na baturi model za a iya cimma. Ƙimar kan layi na ainihi. .