Isishwankathelo sokutshaja isithuthi samandla amatsha

Iiparamitha zebhetri

1.1 Amandla ebhetri

Iyunithi yamandla ebhetri yikilowatt-yure (kWh), ekwaziwa ngokuba yi “degree”. I-1kWh ithetha “amandla asetyenziswa sisixhobo sombane esinamandla ekilowathi e-1 ngeyure enye.” Ukuze kube lula ukuqonda, le akhawunti kawonke-wonke isebenzisa kakhulu "isidanga" ukuyichaza. Abafundi kufuneka bazi kuphela ukuba yiyunithi yamandla ombane kwaye akukho mfuneko yokuba bahlolisise intsingiselo yayo.

[Umzekelo] Amandla ebhetri eemoto kunye neeSUVs ezinoluhlu lwama-500km amalunga nama-60 degrees kunye nama-70 degrees ngokulandelelanayo. Okwangoku izithuthi zombane ezisulungekileyo eziveliswe ngobuninzi zinokuxhotyiswa ngeebhetri ezinomthamo omkhulu we-150 kwh kunye noluhlu lokuqhuba oluthiyori ukuya kuthi ga kwi-1,000km.

Kukho i-nameplate eneenkcukacha zesithuthi kucango lwangaphambili lwasekunene (okanye kumnyango ongasemva wasekunene) wesithuthi esitsha samandla. Iqondo lebhetri libalwa ngokusebenzisa amandla ombane alinganisiweyo × amandla omthamo / 1000. Isiphumo esibaliweyo sinokuhluka kancinci kwixabiso elisemthethweni lenkampani yemoto.

1.2 SOC

I-SOC sisishunqulelo sika “Ubume bentlawulo“, ebhekisa kwisimo sokutshaja kwebhetri, oko kukuthi, amandla aseleyo ebhetri, adla ngokuchazwa njengepesenti.

1.3 Uhlobo lwebhetri

Uninzi lwezithuthi zamandla amatsha kwimarike zisebenzisa iibhetri ze-lithium-ion, ezinokwahlulwa zibe ziibhetri ze-lithium iron phosphate kunye neebhetri ze-ternary lithium.

Phakathi kwabo, kukho izibonakaliso ezimbini ezicacileyo "zokungahambelani kakuhle" kweebhetri ze-lithium iron phosphate. Okokuqala, umboniso we-SOC awuchanekanga: umzekelo, umbhali usandul 'ukufumana i-Xpeng P5, eyathatha imizuzu engama-50 ukuhlawula ukusuka kwi-20% ukuya kwi-99%, ngelixa ihlawulisa ukusuka kwi-99% ukuya kwi-30 imizuzu ukufikelela kwi-100%, ngokucacileyo. ingxaki ngomboniso weSOC; okwesibini, isantya esisezantsi samandla asilingani (kwakhona senzeka ikakhulu xa sihlawulwe ngokupheleleyo): ezinye iimoto azibonisi tshintsho kubomi bebhetri emva kokuqhuba i-10km emva kokuhlawulwa ngokupheleleyo, ngelixa ezinye iimoto zingenzi. Ubomi bebhetri behle ukuya kwi-5km emva kwamanyathelo nje ambalwa. Ngoko ke, iibhetri ze-lithium iron phosphate kufuneka zihlawulwe ngokupheleleyo kanye ngeveki ukulungisa ukuhambelana kweeseli.

Ngokuchasene noko, ngenxa yobume bezinto eziphathekayo, iibhetri ze-lithium ze-ternary azifanelekanga ukupaka emva kokuba zihlawulwe ngokupheleleyo (kodwa zinokuqhubeka ziqhuba ngaphantsi kwe-90% ngokukhawuleza emva kokuba zihlawulwe ngokupheleleyo).Ukongezelela, kungakhathaliseki ukuba luhlobo luni lwebhetri, akufanele luqhutywe phantsi kweemeko zebhetri eziphantsi (i-SOC <20%), kwaye akufanele ihlawuliswe kwiindawo eziphakamileyo (amaqondo okushisa angaphezu kwe-30 ° C okanye ngaphantsi kwe-0 ° C).

Ngokwesantya sokutshaja, iindlela zokutshaja zinokwahlulwa zibe ukutshaja okukhawulezayo kunye nokutshaja okucothayo.

(1)Ukutshaja ngokukhawuleza

Umbane wokutshaja wokutshaja okukhawulezayo ngokuqhelekileyo ngamandla ombane osebenzayo wezithuthi zombane (ubukhulu becala ujikeleze i-360-400V). Kuluhlu lwamandla aphezulu, okwangoku unokufikelela kwi-200-250A, ehambelana ne-70-100kW yamandla. Ezinye iimodeli ezinokutshaja njengoko indawo yazo yokuthengisa zinokufikelela kwi-150kW ngokusebenzisa amandla ombane aphezulu. ngaphezulu. Iimoto ezininzi zinokubiza ukusuka kwi-30% ukuya kwi-80% kwisiqingatha seyure.

[Umzekelo] Ukuthatha imoto enomthamo webhetri we-60 degrees (noluhlu olumalunga ne-500km) njengomzekelo, ukutshaja ngokukhawuleza (amandla angama-60kW)ukutshaja ibhetriubomi be-250km kwisiqingatha seyure (uluhlu lwamandla aphezulu)