Ibhetri eyomeleleyo yeSOC indlela yoqikelelo?

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Ukusukela ekuphuhlisweni kobuchwepheshe bebhetri, iintlobo ezininzi zeendlela ezisetyenzisiweyo ukuqikelela iSOC sele yenzekile. Kukho iindlela ezidityanisiweyo zangoku, ukumelana nebhetri kwangaphakathi, iindlela zovavanyo lokukhupha, iindlela zombane ovulekileyo wesekethe, amandla ombane, kunye neendlela ezintsha zokucoca iKalman. Ithiyori enengqondo engaqondakaliyo kunye nothungelwano lwe-neural, njl.

Okwangoku yenye yeendlela eziqhelekileyo zoqikelelo lwe-SOC kwicandelo lenkqubo yolawulo lwebhetri, kwaye undoqo kukuqikelela i-SOC yebhetri ngokuqokelela okanye ukukhupha umbane ngokuqokelela okanye ukukhupha ngokuqokelela okanye ukukhupha. Ngexesha elifanayo, ngokwezinga lokukhutshwa kunye nobushushu bebhetri. Imbuyekezo ethile ye-SOC eqikelelweyo.

Ukuba ibhetri ichazwa njenge-SOCT0 xa ibhetri iqala ekuhlawuleni kwaye ikhuphe imeko yokuqala, ke ibhetri eseleyo umthamo we-SOC emva kwe-T ngu: q, Q ngumthamo olinganisiweyo webhetri, kunye ne-N intlawulo kunye nokusebenza kakuhle kokukhutshwa, okubizwa ngokuba yi-coulomb ukusebenza kakuhle, ixabiso layo Intlawulo yebhetri kunye nesantya sokukhutshwa sinqunywe, ndingumjelo we-T. Indlela edibeneyo yangoku ilula kwaye inokwethenjelwa kunezinye iindlela zoqikelelo lwe-SOC, kwaye ixabiso le-SOC lebhetri linokuqikelelwa ngamandla, ngoko lisetyenziswa ngokubanzi. Nangona kunjalo, le ndlela nayo inezithintelo ezimbini: enye, indlela edibeneyo yangoku idinga ixabiso lokuqala le-SOC yebhetri kwangaphambili, kwaye iqokelela ngokuchanekileyo ikhoyo ngoku egeleza ngaphakathi okanye ngaphandle kwebhetri, ukwenzela ukuba impazamo yoqikelelo ibe yincinci kangangoko kunokwenzeka; okwesibini, Le ndlela isekelwe kuphela kuphawu lwangaphandle lwebhetri, kwaye izinga lokuzikhupha ibhetri, iqondo lokuguga, kunye nentlawulo kunye nomlinganiselo wokukhupha ibhetri ye-SOC ayihoywa kwinqanaba elithile.

Ukusetyenziswa kwexesha elide kunokubangela ukuba impazamo yokulinganisa ikhule, ngoko ke kuyimfuneko ukwazisa i-Coefficients yokulungiswa okuhambelanayo Lungiselela iimpazamo zokuqokelela. (2) Indlela yoVavanyo lokukhupha Indlela yokuvavanya ukukhutshwa kukuqhubeka ngokuqhubekayo ukukhutshwa ngokuqhubekayo ngoku kude kube yi-voltage ye-cutoff yebhetri, phinda-phinda ixesha elisetyenziswe yile nkqubo yokukhupha ngexabiso lobungakanani bokukhutshwa kwangoku, oko kukuthi, umthamo oseleyo webhetri. Indlela ngokuqhelekileyo isebenzisa le ndlela njengendlela yokulinganisa ibhetri ye-SOC okanye ekugcinweni kade kwebhetri, kwaye ilula, ithembekile, kwaye isiphumo sichanekile ngaphandle kokwazi ixabiso le-SOC yebhetri.

Konke ngempumelelo. Nangona kunjalo, kukho iintsilelo ezimbini kwindlela yokuvavanya ukukhupha: Okokuqala, inkqubo yokuvavanya le ndlela idinga ixesha elininzi; okwesibini, xa usebenzisa le ndlela, kuyimfuneko ukususa ibhetri ekujoliswe kuyo kwisithuthi sombane, ngoko ke indlela ayinakusetyenziswa ukubala ibhetri yaMandla kwimeko yokusebenza. (3) Indlela ye-voltage yesiphaluka evulekileyo isekelwe kubudlelwane bokutshintsha phakathi kombane wokuvula ibhetri kunye ne-OCVOTAGE, i-OCV) kunye ne-concentration ye-lithium ion yangaphakathi yebhetri, kwaye ngokungathanga ngqo ihambelana nobudlelwane obuhambelanayo phakathi kwayo kunye nebhetri ye-SOC.

Xa uqhuba umsebenzi wangempela, kuyimfuneko ukukhupha ibhetri emva kokuba ibhetri izaliswe ngumlinganiselo omiselweyo wokukhupha (ngokubanzi i-1c) de ukukhutshwa kumiswe, kwaye ubudlelwane phakathi kwe-OCV kunye ne-SOC ifunyenwe ngokwenkqubo yokukhupha. Xa ibhetri ikwimeko yokusebenza yokwenyani, ibhetri ye-SOC yangoku inokufumaneka ngokufumana itheyibhile yobudlelwane ye-OCV-SoC ngokwexabiso lombane kwiziphelo zombini zebhetri. Nangona le ndlela isebenzayo kwiibhetri ezahlukeneyo, kukho kwakhona iziphene: Okokuqala, ibhetri ekujoliswe kuyo kufuneka ivunyelwe ukuba ime ngaphezu kwe-1 h ngaphambi kokulinganisa i-OCV, ngaloo ndlela isasaza ngokufanayo i-electrolyte yangaphakathi kwibhetri ukufumana i-voltage ezinzileyo yokuphela; okwesibini, ibhetri kumaqondo okushisa ahlukeneyo Okanye ngexesha lobomi obuhlukeneyo, nangona isiphaluka esivulekileyo siyafana, ngokwenene i-SOC inokwahluka, kwaye umphumo wokulinganisa awuqinisekiswanga ukuba ichanekile ngokupheleleyo ukusetyenziswa kwexesha elide le ndlela.

Ngoko ke, indlela yombane wesiphaluka evulekileyo iyafana nendlela yokuvavanya ukukhupha, ayisebenzi kwi-SOC yebhetri esebenzayo. (4) Indlela yokucoca i-Kalman indlela yokucoca i-KALMAN luhlobo olutsha lwedatha yokuzibuyisela kwi-self-regression ephuculweyo ehluzwe kwi-"Impumelelo emitsha ye-Linear Filtering and Forecasting Theory" kwi-1960s. ialgorithm.

Undoqo we-algorithm kukuba imeko yenkqubo eguquguqukayo entsonkothileyo inokuphuculwa kwimeko yenkqubo eguquguqukayo entsonkothileyo ngokomgaqo wobuncinci beemeawns. Iinkqubo eziguquguqukayo ezingaguqukiyo ziya kuba ngumgca kwimodeli yendawo yendawo yenkqubo kwindlela yokucoca iKalman. Xa usetyenziso lwangempela, inkqubo ihlaziywa ngexabiso elibonwayo lexesha langoku, lilandelwa lixabiso elibonwayo lexesha langoku.

"I-Forecast-Measurement-Corrected" imowudi, ukuphelisa ukutenxa kunye nokuphazamiseka kwenkqubo ehleliweyo. Xa i-SOC ye-powertrain iqikelelwa ngokusebenzisa indlela yokucoca i-Kalman, ibhetri iguqulwa ibe yimodeli yendawo yendawo ngendlela yenkqubo yamandla, kwaye i-SOC iba yinto eguquguqukayo yelizwe ngaphakathi kwimodeli. Isixokelelwano esisekiweyo yinkqubo yomgca ecacileyo.

Ekubeni indlela yokucoca i-Kalman ayilungiseleli kuphela impazamo yokuqala yenkqubo, inokucinezela ngokufanelekileyo ingxolo yenkqubo, ngoko kukho ixabiso elibalulekileyo lesicelo kwi-SOC yoqikelelo lweebhetri zamandla ezithuthi zombane kwiimeko zokusebenza. Nangona kunjalo, le ndlela ikhona iziphene ezinamanqaku amabini: enye, indlela yokucoca i-Kalman iqikelela ukuchaneka kwe-SOC kuxhomekeke kakhulu ekuchanekeni kwemodeli yebhetri, iimpawu zokusebenza ngokwazo zinamandla kakhulu ebhetri yamandla, kwindlela yokucoca i-Kalman Emva komgca, akunakuphepheka ukuba akukho mpazamo, kwaye ukuba imodeli isekiwe, umphumo awuthembekanga. okwesibini, indlela echaphazelekayo inzima kakhulu, inani lokubala likhulu ngokugqithisileyo, kwaye ixesha lokubala elibalwayo lide, kunye neemfuno zokusebenza kwe-Hardware. (5) Indlela ye-Neural network ye-neural network ye-neural network yi-analog brain brain kunye ne-neuron yayo esetyenziselwa ukujongana nohlobo olutsha lwe-algorithm yeenkqubo ezingabonakaliyo.

Ayifuni uphando olunzulu lwesakhiwo sangaphakathi sebhetri, ukukhupha nje inani elikhulu leempawu zokusebenza kwibhetri ekujoliswe kuyo kwangaphambili. Ngenisa ixabiso le-SOC ekuqhubeni kwisampulu yemveliso kwaye uyifake kwinkqubo esekwe ngokusebenzisa indlela. Indlela ilula xa kucutshungulwa kamva, oko kukuthi, inokunqanda ngokufanelekileyo impazamo yendlela yokucoca iKalman ukwenza imodeli yebhetri njengomgca, kwaye inokufumana iiparamitha eziguquguqukayo zebhetri ngexesha langempela.

Nangona kunjalo, umthamo wangaphambili wendlela yothungelwano lwe-neural mkhulu kakhulu, kwaye inani elikhulu ledatha yesampulu ekujoliswe kuyo ebanzi kwaye ebanzi iyafuneka ukuqeqesha inkqubo. Indlela yoqeqesho lwedatha kunye noqeqesho ichaphazela ubukhulu becala ukuchaneka koqikelelo lwe-SOC. Ukongezelela, phantsi kwesenzo esinzima sokushisa kwebhetri, umlinganiselo wokuzikhupha kunye nokuguga kwebhetri, indlela isetyenziselwa ukuqikelela ixabiso le-SOC yesethi enye yeebhetri ixesha elide, kwaye ukuchaneka kwayo kuya kuba yisaphulelo esikhulu.

Ke ngoko, le ndlela ayiqhelekanga kakhulu kumsebenzi woqikelelo lwe-SOC yebhetri yamandla.