Dynamic bhatiri SOC yekufungidzira nzira?

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Soláthraí Stáisiún Cumhachta Inaistrithe

Kubva pakuvandudzwa kwehunyanzvi hwebhatiri, marudzi mazhinji enzira dzakashandiswa kufungidzira SOC dzakatoitika. Kune chete nzira dzechinyakare dzazvino dzakabatanidzwa, bhatiri yemukati kuramba, nzira dzekuburitsa bvunzo, yakavhurika yedunhu voltage nzira, mutoro voltages, uye dzimwe nzira dzeKalman kusefa. Fuzzy logical theory uye neural networking, nezvimwe.

Parizvino ndiyo imwe yedzakajairika nzira dzekufungidzira dzeSOC mumunda webhatiri manejimendi system, uye chakanyanya ndechekufungidzira iyo SOC yebhatiri nekuunganidza kana kuburitsa magetsi nekuunganidza kana kuburitsa nekuunganidza kana kuburitsa. Panguva imwecheteyo, maererano nehuwandu hwekubuda uye kupisa kwebheteri. Imwe muripo weiyo inofungidzirwa SOC.

Kana bhatiri ichitsanangurwa seSOCT0 apo bhatiri inotanga mubhadharo uye kubuda mamiriro ekutanga, ipapo bhatiri rinosara simba reSOC mushure meT nderokuti: q, Q ndiyo bhatiri yakarongerwa simba, uye N ndeyekuchaja uye kuburitsa kushanda zvakanaka, kunonziwo coulomb kunyatsoshanda, kukosha kwayo Kuchaja kwebhatiri uye chiyero chekubuda chakatemwa, ini ndiri ikozvino yeT. Iyo yazvino yakasanganiswa nzira iri nyore uye yakavimbika kupfuura dzimwe nzira dzekufungidzira dzeSOC, uye kukosha kweSOC yebhatiri inogona kufungidzirwa zvine simba, saka inoshandiswa zvakanyanya. Zvisinei, iyi nzira inewo zvipingamupinyi zviviri: imwe, nzira yemazuva ano yakabatanidzwa inoda kutanga kweSOC kukosha kwebheteri mberi, uye inounganidza zvakakwana ikozvino inoyerera mukati kana kunze kwebheteri, kuitira kuti kukanganisa kwekufungidzira kuve kuduku sezvinobvira; chechipiri, Iyi nzira inongobva pane yekunze bhatiri, uye bhatiri yekuzviburitsa mwero, dhigirii rekuchembera, uye chiyero chekuchaja uye kubuda kwebhatiri SOC inoregeredzwa kune imwe nhanho.

Kushandiswa kwenguva refu kunogonawo kukonzera kukanganisa kwekuyera kuwedzera, saka zvakakosha kuunza Related kururamisa coefficients Kururamisa kuunganidza kukanganisa. (2) Discharge Test Method Iyo yekuburitsa bvunzo nzira ndeyekuenderera inogara iripo yekuburitsa kubuda kusvika cutoff voltage yebhatiri, kuwedzera nguva inoshandiswa neiyi nzira yekuburitsa nehukuru hwehukuru hwekuburitsa ikozvino, kureva, iyo yasara bhatiri. Iyo nzira inowanzo shandisa nzira iyi senzira yekuenzanisa yebhatiri SOC kana mukunonoka kugadzirisa kwebhatiri, uye iri nyore, yakavimbika, uye mhedzisiro yacho ndeyechokwadi pasina kuziva bhatiri SOC kukosha.

Zvose zvinobudirira. Zvisinei, pane zvikanganiso zviviri mukubuda kwekuedza nzira: Kutanga, nzira yekuedza yeiyi nzira inoda nguva yakawanda; chechipiri, paunenge uchishandisa nzira iyi, zvakakosha kubvisa bhatiri rinotarirwa kubva pamotokari yemagetsi, saka nzira haigone kushandiswa kuverenga Power bhatiri mumamiriro ekushanda. (3) Iyo yakavhurika yedunhu voltage nzira yakavakirwa pahukama hwekuchinja pakati pekuvhura voltage yebhatiri uye OCVOTAGE, OCV) uye yemukati lithium ion concentration yebhatiri, uye zvisina kunanga zvinoenderana nehukama hunoenderana pakati payo nebhatiri SOC.

Paunenge uchiita oparesheni chaiyo, zvinodikanwa kuburitsa bhatiri mushure mekunge bhatiri razadzwa neyakagadzika discharge ratio (kazhinji 1c) kusvika kuburitswa kwamiswa, uye hukama pakati peOCV neSOC hunowanikwa maererano nemaitiro ekubuda. Kana bhatiri riri mumamiriro chaiwo ekushanda, bhatiri razvino SOC rinogona kuwanikwa nekutsvaga iyo OCV-SoC yehukama tafura zvinoenderana nehuwandu hwevolti kumagumo ese ebhatiri. Kunyange zvazvo nzira yacho inoshanda kune mabhatiri akasiyana-siyana, iripowo kuzvikuvadza: Kutanga, bhatiri rinotarisirwa rinofanira kubvumirwa kumira kupfuura 1 h risati rayera OCV, nokudaro kugovera zvakafanana mukati me electrolyte mubhatiri kuti uwane mhepo yakagadzikana yekupedzisira; chechipiri, bhatiri iri pakupisa kwakasiyana Kana panguva yehupenyu hwakasiyana, kunyange zvazvo dunhu rakazaruka rakafanana, iyo SOC chaiyo inogona kusiyana, uye chiyero chekuyera hachina kuvimbiswa kuti chakarurama zvachose kushandiswa kwenguva refu kweiyi nzira.

Naizvozvo, iyo yakavhurika yedunhu voltage nzira yakafanana neye discharge test nzira, haishande kune inomhanya bhatiri SOC fungidziro. (4) Kalman kusefa nzira yeKALMAN yekusefa imhando nyowani yeyakagadziridzwa yekuzvidzora data yakasefa mu "Zvitsva Zvakabudirira zve Linear Kusefa uye Forecasting Theory" muma1960s. algorithm.

Izvo zvakakosha zvealgorithm ndezvekuti iyo mamiriro eiyo yakaoma dynamic system inogona kugadziridzwa kune iyo mamiriro eiyo yakaoma dynamic system zvinoenderana nemusimboti wemishoma meanwns. Non-linear dynamic masisitimu anozove mutsara mune yemamiriro enzvimbo modhi yehurongwa muKalman kusefa nzira. Kana iyo chaiyo yekushandisa, iyo sisitimu inogadziridzwa neinocherechedzwa kukosha yenguva ino, inoteverwa neinocherechedzwa kukosha kweiyo nguva ino.

"Forecast - Measurement - Yakagadziriswa" modhi, kubvisa kutsauka uye kupindira kweiyo system zvisina tsarukano. Kana iyo SOC yepowertrain inofungidzirwa kushandisa nzira yekusefa yeKalman, bhatiri rinoshandurwa kuita mamiriro enzvimbo munzvimbo nenzira yesimba remagetsi, uye SOC inova shanduko yenyika mukati meiyo modhi. Iyo yakamiswa sisitimu ndeye linear discrete system.

Sezvo nzira yekusefa yeKalman isingangogadziri kukanganisa kwekutanga kwehurongwa, inogona kunyatso kudzvanya ruzha rwehurongwa, saka pane kukosha kwakakosha kwekushandisa muSOC fungidziro yemabhatiri emagetsi emagetsi emagetsi mumamiriro ekushanda. Nekudaro, iyo nzira zvakare iripo maviri-mapoinzi akaremara: imwe, Kalman kusefa nzira inofungidzira kurongeka kweSOC kunoenderana zvakanyanya nekurongeka kweiyo bhatiri modhi, maitiro ekushanda pachawo ane simba risiri mutsara bhatiri remagetsi, muKalman kusefa nzira Mushure memutsara, hazvidzivirike kuti hapana chikanganiso, uye kana iyo modhi ikasimbiswa, mhedzisiro inofungidzirwa haina kuvimbika. chechipiri, nzira inobatanidzwa yakanyanya kuoma, chiyero chekuverenga chakakura zvakanyanya, uye iyo yakaverengerwa kuverenga nguva yakareba, uye Hardware kuita zvinodiwa. (5) Neural network nzira neural network nzira ianalogi yehuropi hwemunhu uye neuron yayo inoshandiswa kubata nemhando nyowani yealgorithm yeasina mutsara masisitimu.

Izvo hazvidi kutsvagisa kwakadzama kwechimiro chemukati chebhatiri, kungotora huwandu hukuru hwekushanda maitiro kubva kune inotarirwa bhatiri pamberi. Pinda kukosha kweSOC mukumhanya kubva kumuenzaniso wekubuda uye woisa muhurongwa hwakagadzwa nekushandisa nzira. Iyo nzira iri nyore mukugadzirisa kwakazotevera, ndiko kuti, inogona kunyatso dzivirira kukanganisa kweKalman kusefa nzira kuita iyo bhatiri modhi semutsara, uye inogona kuwana inochinja maparamita ebhatiri munguva chaiyo.

Nekudaro, iyo pre-kushanda vhoriyamu yeneural network nzira yakakura, uye nhamba huru yeakawanda uye yakazara inotariswa sampuli data inodiwa kudzidzisa sisitimu. Iyo nzira yekudzidzisa data uye kudzidziswa iri kukanganisa zvakanyanya fungidziro yeSOC. Mukuwedzera, pasi pekuita kwakaoma kwekushisa kwebhatiri, kuzvidzora kwehuwandu uye kuchembera kwebhatiri, iyo nzira inoshandiswa kufungidzira kukosha kweSOC kweiyo imwechete seti yemabhatiri kwenguva yakareba, uye kurongeka kwayo kuchavawo kuderedzwa kukuru.

Naizvozvo, iyi nzira haina kunyanya kuwanda muSOC yekufungidzira basa rebhatiri remagetsi.