Kuwongolera kofanana kwa batire yamphamvu
Kuti muchepetse mphamvu ndi kusiyana kwa mphamvu pakati pa ma cell omwe ali mu paketi ya batri ndikuwongolera mphamvu yogwiritsira ntchito mphamvu ya paketi ya batri, gawo lofananira limafunikira panthawi yolipirira ndi kutulutsa. Kutengera ndi momwe dera limawonongera mphamvu panthawi yofananira, litha kugawidwa m'magulu awiri: mtundu wa kutha mphamvu ndi mtundu wa -wopanda mphamvu. Mtundu wa kutha kwa mphamvu umataya mphamvu yochuluka ngati kutentha, pamene mphamvu yosatha{3}}yosatha imasamutsa kapena kutembenuza mphamvu yochuluka kukhala mabatire ena.
Kasamalidwe ka njira zothanirana ndi kutha kwa mphamvu{0}}
Kuthira mphamvu-magawo ofananirako amtundu wamagetsi amakwaniritsa kufananiza mwa kuthamangitsa magetsi kudzera m'maselo a batire, monga momwe zikuwonetsedwera pa Chithunzi 8-12. Dongosolo lozungulirali ndi losavuta, ndipo njira yofananira nthawi zambiri imamalizidwa pakulipiritsa. Komabe, sichingabweretsenso mphamvu zama cell-ochepa kwambiri, zomwe zimapangitsa kuti mphamvu ziwonongeke komanso kuchulukirachulukira pamakina owongolera matenthedwe. Zida zamagetsi zamtundu wamagetsi nthawi zambiri zimagawika m'magulu awiri:
Zida zamagetsi zamtundu wa dissipation-nthawi zambiri zimakhala m'magulu awiri: Choyamba, charging cha shunt resistor equalization charging, pomwe shunt resistor imalumikizidwa nthawi zonse molingana ndi batire iliyonse. Njira imeneyi imadziwika ndi kudalirika kwambiri komanso mphamvu yayikulu ya shunt resistor, kumachepetsa kusiyana kwa voltage ya selo iliyonse chifukwa chodzitulutsa yokha-kutuluka kudzera mu shunt yokhazikika. Zoyipa zake ndikuti shunt resistor imagwiritsa ntchito mphamvu nthawi zonse pakulipiritsa ndi kutulutsa, zomwe zimapangitsa kuti mphamvu iwonongeke kwambiri; nthawi zambiri ndi yoyenera kugwiritsidwa ntchito komwe mphamvu imatha kuwonjezeredwa nthawi yomweyo.
Chachiwiri, ma switch-controlled shunt resistor equalization charging circuit, pomwe shunt resistor imayendetsedwa ndi switch. Panthawi yolipiritsa, mphamvu ya batire ikafika pamagetsi a cutoff, chipangizo chofananira chimalepheretsa kuchulukira ndikutembenuza mphamvu yochulukirapo kukhala kutentha. Dera lofananirali limagwira ntchito pakulipiritsa ndipo limatha kuthamangitsa ma cell omwe ali ndi ma voltages apamwamba pakulipiritsa. Choyipa chake ndi chakuti chifukwa cha nthawi yochepa yofananira, kutentha kwakukulu komwe kumapangidwa panthawi ya shunt kumafunika kutayidwa panthawi yake kudzera mu kayendetsedwe ka kayendetsedwe ka kutentha, komwe kumawonekera makamaka mu mapaketi a batri omwe ali ndi mphamvu zazikulu.
Mwachitsanzo, mu paketi ya batri ya 10Ah, kusiyana kwa voliyumu ya 100mV kungapangitse kusiyana kwa mphamvu kupitirira 500mAh. Ngati nthawi yofanana ndi maola awiri, shunt current ndi 250mA, shunt resistance ndi pafupifupi 14Ω, ndipo kutentha komwe kumapangidwa kumakhala pafupifupi 2Wh.
Kusamalidwa kofanana-kwamtundu wa kutha kwa mphamvu
Magawo omwe si-owononga mphamvu sagwiritsa ntchito mphamvu zochepa kuposa zotayira mphamvu, koma mawonekedwe ake ndi ovuta. Iwo akhoza kugawidwa mu mitundu iwiri: mphamvu kutembenuka equalization ndi mphamvu kutengerapo equalization.
Kusintha kwa Mphamvu Kuwerengera
Kusintha mphamvu zamagetsi kumagwiritsa ntchito masinthidwe osinthika kuti abweretsenso mphamvu zama cell pawokha kuchokera pa batire yonse kapena kusintha mphamvu zama cell kuti zikhale pa batire yonse. Kutembenuka kuchoka ku mphamvu ya selo kupita ku mphamvu zonse kumachitika panthawi yolipiritsa batire, monga momwe chithunzi 8-13 chikusonyezera. Derali limazindikira mphamvu ya selo iliyonse; pamene voteji ya selo iliyonse ifika pamtengo wina, gawo lolinganiza limayamba kugwira ntchito. Imapatutsa pakali pano mu cell ya munthu kuti muchepetse voteji yolipiritsa, ndipo magetsi opatutsidwa amasinthidwa ndi module ndikubwezeredwa ku basi yothamangitsa, ndikukwaniritsa kusanja. Njira zina zosinthira mphamvu zosinthira mphamvu zimathanso kugwiritsa ntchito ma inductors a freewheeling kuti amalize kutembenuka kwamphamvu kuchokera ku maselo amodzi kupita ku paketi ya batri.
Dera losinthira mphamvu ya paketi yonse ya batri kukhala ma cell akuwonetsedwa pazithunzi 8-14. Njirayi imatchedwanso kuti kusakaniza kowonjezera. Panthawi yolipiritsa, gawo lalikulu lolipiritsa limayamba kuyitanitsa paketi ya batri, pomwe gawo lozindikira magetsi limayang'anira selo lililonse. Mphamvu ya cell iliyonse ikakwera kwambiri, gawo lalikulu lothamangitsira limazimitsidwa, kenako gawo lowonjezera lowonjezera limayamba kulipiritsa batire paketi. Kupyolera mu kamangidwe kameneka, mphamvu yolipirira mu module yosinthira imayikidwa pa selo iliyonse kudzera pa converter yodziyimira payokha ya DC/DC ndi chosinthira cha coaxial coil, ndikuwonjezera mafunde achiwiri ofanana. Izi zimatsimikizira kuti maselo omwe ali ndi magetsi apamwamba amalandira mphamvu zochepa kuchokera ku dera lothandizira lothandizira, pamene maselo omwe ali ndi magetsi otsika amalandira mphamvu zambiri, motero amakwaniritsa kulinganiza. Vuto la njirayi ndikuti kuwongolera kusasinthika kwa mafunde achiwiri kumakhala kovuta. Ngakhale ndi mokhota zofanana, kuganizira thiransifoma kutayikira inductance ndi mutual inductance pakati yachiwiri windings, munthu maselo sangathe kulandira chomwecho naza voteji. Kuphatikiza apo, coaxial coil imakumananso ndi kutha kwa mphamvu, ndipo njira yofananirayi imangoyang'ana kusagwirizana kwa kulipiritsa, kulephera kuthana ndi kusalinganika komwe kumatulutsa.
Kusamutsa kwa Mphamvu
Kusamutsa mphamvu zamagetsi kumagwiritsa ntchito zinthu zosungira mphamvu monga ma inductors kapena ma capacitor kuti asamutsire mtengo kuchokera ku-maselo omwe ali ndi mphamvu zochepa kuti achepetse{1}}maselo amphamvu mkati mwa paketi ya batri, monga momwe zasonyezedwera pa Chithunzi 8-15. Dongosololi limasamutsa mphamvu pakati pa ma cell oyandikana nawo posintha ma capacitor, kusuntha chaji kuchokera ku{4}}voltage kupita ku ma cell otsika-ma cell kuti athe kusanja bwino. Kapenanso, kutengera mphamvu kwa bidirectional pakati pa maselo oyandikana nawo kumatha kupezedwa pogwiritsa ntchito inductive energy yosungirako. Dongosololi limatha mphamvu zochepa kwambiri, koma limafunikira kusamutsidwa kangapo panthawi yolinganiza, zomwe zimapangitsa kuti pakhale nthawi yayitali komanso kuti isayenerere -mapaketi a mabatire ambiri. Njira yosinthira ma capacitor{10}yabwino kwambiri ingawonjeze liwiro la kusanja posankha ma cell apamwamba kwambiri-otsika kwambiri komanso otsika kwambiri kuti asamutsire mphamvu. Komabe, kutsimikiza kwa mphamvu ndi kukhazikitsidwa kwa chigawo chosinthira pakusamutsa mphamvu ndizovuta.
Kupatula njira zofananira zomwe zili pamwambazi, kuyitanitsa kocheperako kumatha kugwiritsidwanso ntchito kuti mukwaniritse kulinganiza kwa batri panthawi yolipira. Iyi ndi njira yosavuta kwambiri ndipo safuna mayendedwe othandizira akunja. Zimakhudzanso kulitcha -batire yolumikizidwa mosalekeza yokhala ndi mphamvu yamagetsi yaying'ono. Chifukwa chapano cholipiritsa ndi chaching'ono kwambiri, kuthira mochulukira sikungakhudze batire yodzaza kwathunthu. Popeza batire yodzaza mokwanira silingasinthe mphamvu zambiri zamagetsi kukhala mphamvu zamakemikolo, mphamvu yochulukirapo imasinthidwa kukhala kutentha. Mabatire omwe alibe mphamvu zokwanira, komabe, akhoza kupitiriza kulandira mphamvu yamagetsi mpaka atafika pamagetsi. Mwanjira imeneyi, pakapita nthawi yayitali, mabatire onse adzafika pa chiwongolero chonse, motero amakwaniritsa kufananiza kwa mphamvu. Komabe, njirayi imafuna nthawi yayitali yolipiritsa yofanana ndipo imawononga mphamvu zambiri kuti ikwaniritse. Kuphatikiza apo, njira iyi siyothandiza pakuwongolera kusanja kutulutsa.
Mavuto mu Application
Njira zoyankhira batire zomwe zilipo zimatsimikizira kuchuluka kwa batire potengera mphamvu ya batri pack-voteji{{1}kutengera njira yoyendera. Kuti mukwaniritse kulinganiza kwa batire, kulondola kwambiri komanso kulondola pakuzindikira ma voltage ndikofunikira. Kutayikira kwapano mu dera lozindikira ma voltage kumakhudza mwachindunji kusasinthika kwa paketi ya batri. Chifukwa chake, kupanga mawonekedwe osavuta komanso ogwira mtima ozindikira ma voltage ndizovuta kwambiri pakusanja ma circuit. Kuphatikiza apo, voltage si njira yokhayo yoyezera kuchuluka kwa batri. Kukana kwamkati ndi kukana kukhudzana mu njira yolumikizira kumayambitsanso kusiyanasiyana kwamagetsi. Chifukwa chake, kungodalira mphamvu yamagetsi kuti musamalire kungayambitse kupitirira-kulinganiza ndi kuwononga mphamvu. Nthawi zambiri, zimatha kuyambitsa kusalinganika kwa batire paketi, ngakhale kusanja koyambirira.
Mabwalo otayira mphamvu ndi osavuta pamapangidwe, koma zoletsa zofananira zimagwiritsa ntchito mphamvu panthawi yomwe ikuthamangitsidwa ndikupanga kutentha, zomwe zimayambitsa zovuta zowongolera kutentha. Popeza amachepetsa ma voltages okwera kwambiri kapena otsika kwambiri m'maselo amodzi kudzera pakutha mphamvu, amangoyenera kusanja mokhazikika. -kutentha kwawo kwakukulu kumachepetsa kudalirika kwa makina, kuwapangitsa kukhala osayenera kusinthasintha. Njirayi ndiyoyenera mapaketi a batire ang'onoang'ono kapena otsika{4}}akutha mphamvu.
Masekiti otumizira mphamvu ndi njira yolipirira kuchuluka kwa batire, pomwe -batire lamphamvu limathandizira kuti lipereke mphamvu yocheperako{1}}yocheperako. Ngakhale kuti n'zotheka, njirayi ndi yovuta, yochuluka, komanso yokwera mtengo chifukwa chofuna kuyang'anira magetsi a maselo amtundu uliwonse. Kuphatikiza apo, kutumiza mphamvu kumatheka kudzera munjira yosungiramo mphamvu, yomwe imayambitsa kugwiritsa ntchito mphamvu ndikuwongolera zovuta. Njira yofananira iyi nthawi zambiri imagwiritsidwa ntchito m'mapaketi apakati mpaka akulu.
Magawo osinthira mphamvu, kumbali ina, amagwiritsa ntchito magetsi osinthira kuti akwaniritse kutembenuka kwamphamvu. Poyerekeza ndi mabwalo otengera mphamvu, amakhala ochepa kwambiri komanso otsika mtengo. Komabe, pamakoyilo a coaxial, utali wosiyanasiyana ndi mawonekedwe a mawaya omwe amalumikiza mawondo ku selo iliyonse kumabweretsa kusintha kosiyana, zomwe zimapangitsa kusalinganika kosagwirizana kwa selo lililonse ndikupangitsa kuti pakhale zolakwika. Kuphatikiza apo, coaxial coil imagwiritsa ntchito mphamvu chifukwa cha kutayikira kwamagetsi ndi zina.
