Dynamic lithium ion battery management system design method

2022/04/08

Munyori: Iflowpower -Inotakurika Power Station Mutengesi

Dynamic lithium-ion bhatiri management system Dhizaini Method: Iri bepa rinokurukura nezve dhizaini nzira yeakasimba lithium-ion bhatiri manejimendi system yekuwana yakawandisa kuchengetedzwa, yakawandisa-kuburitsa kudzivirira, kuchengetedzwa kwepamusoro uye kuenzana kwe lithium-ion bhatiri powered lithium bhatiri packs. Keywords: lithium-ion simba lithium bhatiri pack; manejimendi system; overcurrent; over-discharge; overcharge; Balance control Nhanganyaya yekushandiswa kwakakura kwemabhatiri e-lithium-ion kweanopfuura makore gumi, asi kutanga kwakakosha kune mbozhanhare, laptop, kamera, DVD Kumirira nhevedzano yediki zvigadzirwa zvemagetsi zvemagetsi, nguva idzi dzinowanzo kuve dzimwechete-kushandisa, yakaderera. kutakura ikozvino, yakakwirira yekuchengetedza chinhu. Mumakore maviri apfuura, mabhatiri e-lithium-ion akatanga kushandisa nekukurumidza, kukwirira kwesimba, kusasvibisa, nezvimwe.

, yakatanga kushandiswa nokukurumidza pamabhasikoro emagetsi, zvishandiso zvemagetsi, uye matoyi emagetsi, uye zvishoma nezvishoma kushandiswa kwemotokari dzakasanganiswa uye motokari dzemagetsi. Nekudaro, kuchengetedzwa kweiyo dynamic lithium-ion bhatiri ichiri dambudziko iro vanhu vari kunyanya kunetsekana parizvino, saka ivo vakanyanya kukosha pakudzivirira kwavo. Mukuwedzera pakuita kuti urambe uchivandudza kuchengetedzwa kwemabhatiri e-lithium-ion, hazvibviri kudzidza hurongwa hwehutungamiri hwebheteri, kuitira kuti bhatiri uye kushandiswa kwayo kuve kwakaenzana.

Kudzivirirwa kwemabhatiri e-lithium-ion Zvakakosha zvinosanganisira kuchengetedzwa kwepamusoro-soro, kuchengetedzwa kwepamusoro-kubvisa, kudarika uye kupfupika kwekuchengetedzwa kwemhepo, etc. kuchaja, kana zvisina kudaro iyo electrolyte mubhatiri ichaongororwa, kuitira kuti kutonhora kusimuke uye kumera gasi, kuderedza bhatiri.

Hupenyu hwesevhisi hwakaoma, uye hunotokonzera kuputika, saka dunhu redziviriro rinofanira kuona kuti kupera kwemagetsi ebhatiri rega rega mubhatiri pack haaperi zvachose. Kana iyo voltage yebhatiri inodarika kukosha kweseti, inogadziriswa. Kuchaja kuchengetedza basa, cheka dhizaini yekuchaja nedunhu redziviriro, kumisa kuchaja.

Dziviriro inogona kumiswa kana bhatiri voltage yadzokera kune yakabvumidzwa voltage uye inoburitsa yakawandisa yekuvhara modhi. Lithium-ion mabhatiri ezvishandiso zvakasiyana ane awo akasiyana akatarwa maitiro. Mukuwedzera, hazvidikanwi kubhadhara kusanzwisiswa kwemheremhere, kuitira kudzivirira kusazvibata uye misoperation, zvakakosha kuisa kunonoka kwekuwedzera, uye nguva yekunonoka haigoni kupfupika kupfuura ruzha.

Kana iyo voltage ikaramba ichipfuura overchalton test voltage, inokonzeresa kuchengetedzwa kwepamusoro-reserve. 1.2 Kudzivirirwa kwepamusoro-kwekudzivirirwa kwekunyanyisa kwebhatiri ye-lithium-ion kuchapfupisa hupenyu hwayo, uye kukuvadzwa kwebhatiri kazhinji hakugadzirisiki.

Kuti udzivise kuwedzera-kubuda kweiyo lithium ion bhatiri, kana lithium ion bhatiri voltage yakadzikira pane yayo-yepamusoro-discharge voltage test point, kuchengetedzwa kwepamusoro-kuburitsa, kubuda kunoitwa, uye bhatiri rinochengetwa pane imwe nguva. standby mode ye low static current, uye iyo parameter yekumisikidza yakafanana. Charge. 1.

3 Yakawandisa / ipfupi-chekiti chengetedzo Lithium-ion bhatiri ine zvimwe zvinogumira, yakawandisa yekuburitsa mafungu anogona zvakare kukonzera kukuvara kusingagadzirike kumabhatiri e-lithium ion, kukanganisa hupenyu hwavo hwesevhisi. Icho chimiro chepfupi chekudzivirira chekudzivirira chakawedzerwa pamusoro pekudzivirira kuyerera. Kana iyo yekunze pfupi yedunhu yakakonzerwa, kubuda kunomira pakarepo, kana zvisina kudaro kunogona kukonzera kukanganisa kwakanyanya kune lithium ion bhatiri pachayo uye midziyo yekunze.

Iyo yekunonoka nguva yekudzivirira yakawandisa kazhinji inokwana mazana mashoma mamicroseconds kusvika milliseconds, nepo pfupi-yedunhu kuchengetedza nguva yekunonoka ndeye mamicroseconds, kanenge kapfupi-circuit ipapo inocheka loop, iyo inogona kudzivirira kukuvara kukuru kubhatiri kubva kubhatiri. Panyaya yezvishandiso zvemagetsi, kugadzika kweyekuchengetedza kukosha kwazvino uye nguva yekunonoka haina kusanganiswa nemaparamita echishandiso chemagetsi pachayo, zvikasadaro zvinokanganisa kuburitsa torque yechishandiso uye hupenyu hwemota. 1.

4 Battery yakaenzana ine simba relithium-ion mabhatiri anowanzo ane tambo shoma, gumi nemaviri tambo kana kunyange mazana etambo, nekuda kwebhatiri riri mukati mekugadzirisa, zvinofanirwa kupfuudza akawanda nhanho kubva mufirimu rekupotera kuti rive rakapedzwa. chigadzirwa, kunyangwe mushure mekuomesesa bvunzo maitiro, Iyo voltage, kuramba, kugona kwesimba remagetsi rinoenderana, asi mushure menguva yakati rebei, kuramba kwemukati, voltage, huwandu, nezvimwe zvinozvarwa, zvinoumba nyika isingaenderane, inozvarwa inozvarwa. kana kusiyana kwakadaro. Musiyano uyu unoratidzwa sevoltage pakati peakateedzana bhatiri cores kana bhatiri paki rafashukira kana mushure.

Muchiitiko ichi, panguva yebhatiri pack, bhatiri musimboti wakanyanya kukwirisa, uye bhatiri musimboti unotangwa kare, uye bhatiri musimboti wakanyanya kuderera mukuita kwekuburitsa kunoita kuti bhatiri paki riwedzere kuburitsa kudzivirira, zvichigonesa iyo yakazara. bhatiri pack Uhu hwakadzikiswa zvakajeka, uye huwandu hunowanikwa mukati mebhatiri pack ndiko kugona kwebhatiri musimboti mubhatiri pack, uye zviri nyore kuwedzeredza uye zvakawandisa chiitiko panguva yekushandiswa, uye hazvisi nyore kuwana, zvichikonzera kukundikana mberi. Naizvozvo, dunhu redziviriro rinogona kushandiswa kupedzisa kushanda kwakaringana kwebhatiri unit kubvisa yakawandisa ikozvino kubva mubhatiri rine voltage yakakwira, kushandisa rimwe simba, kuona bhatiri kuenzana, kuwedzera mashandisiro eiyo dynamic lithium-ion mabhatiri, uye kuwedzera bhatiri. shandisa Hupenyu, kuchengetedzeka kutsva. Iyo inowanzo shandiswa yakaenzana nzira ine simba rekuchengetedza equilibrium uye kuramba chiyero.

Iyo simba rekuchengetedza equilibrium ndiko kuchaja uye kubuda kwesimba rekuchengetedza simba senge inductance kana capacitance yekuwana simba rekufambisa pakati pesimba rekufambisa pakati pebhatiri. Iyi yakaenzana yekuchaja nzira inowanzo kudzora yakaoma network yetiweki, yakakwirira kuchengetedza manejimendi zvinodiwa, inofanirwa kutarisisa kuchaja uye kuburitsa nguva yesimba rekuchengetedza simba, uye iyo yakanyanya mukana ndeyekuti ese mayuniti anogona kuenzana chikamu chimwe nechimwe. Basa rebhatiri haridyi simba remagetsi re lithium ion bhatiri pack.

Resistance equalization inowanzo endeswa kumabhatiri mapaketi kuburikidza neiyo controller control resistor network, iyo inogona kuenzana kune akawanda-sero mabhatiri panguva imwe chete. Nekudaro, mukuenzana kwemaitiro, kana iyo yemagetsi isingaite idiki, iyo yakaenzana yezvino idiki, mhedzisiro yacho idiki kwazvo; kana kupikisa kwemagetsi kuri kudiki, simba rekupikisa rakakura, hurongwa hwekurasikirwa kwesimba hwakakura, chiyero chekuenzanisa chakaderera, sisitimu yakakwira kune zvinodikanwa zvekutonga kupisa. Kuita tembiricha test control.

Nheyo yekupikisa kuenzana iri mukuita kwebhatiri pack kuchaja, kana rimwe bhatiri richimhanya, voltage yakakwira kupfuura mamwe mabhatiri, sisitimu inodzorwa nekudzora simba-pa shunt yekuenzana kuramba, uye bhatiri rinochajwa. kudzikisira kumhanya kwekuchaja kwebhatiri kuti uwane chikamu chimwe nechimwe. Battery balance kuchaja chinangwa. 2 Kudzivirirwa basa Kuzadzikiswa kwekuchengetedzwa kwemabhatiri e-lithium-ion Yakakosha: single-chip control uye yakabatanidzwa yedunhu kudzivirira chip.

2.1IC Kudzora Parizvino, kune akawanda machipi anogona kuona lithium-ion bhatiri kuchengetedza. Kune akawanda marudzi emachipisi, Taiwan, uye mainland anogona kusarudza.

Parizvino, kune nzira dzakawanda dzekushandisa, dzakakura, uye peripheral circuit iri nyore, asi mutengo unodhura. Kushanda kweakasiyana ekudzivirira IC kwakasiyana. Nzira yekudzivirira uye mitsara yekunze yakasiyanawo.

Inogona kuve yakavakirwa pane akasiyana maIC mukushandiswa chaiko. Pakusarudza IC, zvakakosha kufunga nezvazvo. Iyo overcharge yekudzivirira voltage yemhando dzakasiyana dzeIC dzakasiyana.

Kune 4.25V uye 4.35V, uye IC's pachayo simba rekushandisa, peripheral circuit iri nyore zvakakwana, chengetedza maparameter e IC Inopindirana nezvinodiwa, vhoriyamu idiki zvakakwana, unofanira kufunga kufunga.

Mukuwedzera kune kuchengetedzwa kwekuchengetedzwa, ndiro yekudzivirira ndiyowo inokosha inokosha. Kuti uwedzere-kubuda kweyambiro, chengetedza IC kuti uedze voltage yebhatiri. Kana iyo yakawedzera-discharge test voltage yasvikwa, haisi yekudzima simba reMOSFET uye nekuchekwa-kubvisa kubuda.

Nekudaro, panguva ino, bhatiri pachayo richine kubuda kwechisikigo uye iko kushandiswa kweIC. Naizvozvo, zvinodikanwa kudzikisira mashandisirwo azvino eIC kusvika padanho rakaderera, uye kana iyo statically kushandiswa ikozvino isiri 0.1ua.

Uye zvakare, iyo simba lithium-ion bhatiri iri kushanda kana kuchaja, uye pachava nekukwira kwakanyanya gerberations. Naizvozvo, kuchengetedzwa kweICs kunofanirwa kusangana nepamusoro-soro zvinodiwa. Mufananidzo 1 idhizaini ye 4 tambo yekushandisa schematic kuchengetedza IC muSeiko S-8254A.

Iyo S-8254 yakatevedzana yakavakirwa-in high precision voltage test circuit uye kunonoka dunhu maICs ezvikamu zvitatu kana 4-segment-linking lithium ions kana lithium polymer rechargeable mabhatiri. Kuchinja kuburikidza neSEL terminal, inogona kushandiswa kuchengetedza 3 kana 4 akatevedzana mabhatiri maseru. Mufananidzo 1S 1S-8254A4 String Protection Schematic Schematic Ikozvino bhatiri yekudzivirira chip inogona kuchengetedza 4 lithium-ion mabhatiri, asi akawanda e lithium-ion mabhatiri ari pamusoro pezvikamu zvishanu, zvakadai semagetsi emagetsi, mabhasikoro emagetsi, uye UPS, panguva ino Chii ndoita here? Sezvakaratidzwa muFIG.

2, dunhu rinogona kuona simba rekubuda re20A / 24V, kuitira kuti S-8254AAV ishandiswe semuenzaniso wekushandisa weiyo control chip, iyo panguva imwe chete inoshandisa maviri ekudzivirira machipisi pamwe chete, inochengetedza 8-tambo lithium ion bhatiri pack, pamusoro peThe deprotection voltage i2.70V ¡À 0.080V, iyo overchaulic voltage i4.

250V ¡À 0.025V. Mufananidzo 28 Servatic Lithium Ion Battery Dziviriro Circuit Iyi yedunhu equilibrium control inoshandisa R5408 chip, kuyera kwevoltage kuyerwa kwakakwira, uye kuenzana ikozvino kunosvika ku1A.

2.2MCU Inotonga Iripo Yakabatanidzwa Yedziviriro Yedziviriro Chips Yakakosha pakuchengetedzwa kwebhatiri mapaketi pazasi 4, uye bhatiri mapaketi pamusoro pezvikamu zvina anogona kushandiswa munhevedzano kana akati wandei-level kuchengetedzwa kweakawanda-nhanho ekudzivirira machipisi. Nzira ye chip series.

Nekudaro, iyo yedunhu scalability yebhatiri paki ye4-chikamu bhatiri paki uchishandisa kuwanda kwemachipisi ekudzivirira. Panguva imwecheteyo, machipisi ekudzivirira akabatanidzwa anowanzo kungoita chimwe chete kana chimwe chehunhu hwemhando yebhatiri, uye mutengo unowanzo kukwirira. Kuti izvi zviitike, zvakasanganiswa nekuchaja uye kuburitsa maitiro e lithium ion simba lithium bhatiri, akawanda kesi emagetsi lithium ion bhatiri ekudzivirira maseketi, magadzirirwo nzira uchishandisa MCU (micro-conscious) seyakanyanya.

Sezvo musimboti wezvakasiyana siyana zvekutonga, iyo micro-recue inopihwa kune lithium-ion bhatiri pack kuti ipe overcharge, overlapping, overcurrent protection. Kudzivirirwa, kupfupika kwedziviriro yedunhu, nepo ichipa mabasa akadai sekufanotaura kugona, kutaurirana, chitupa chitupa. 3 Hardware anti-kupindira zviyero simba lithium ion bhatiri manejimendi system sechikamu chekushandisa system, kazhinji zvichienderana nekukanganiswa kwakasiyana kwemagetsi, iyo chaiyo yekushanda nharaunda yakanyanya kuipa, zvinodikanwa kutora kumwe kupikisa pane hardware dhizaini uye PCB board Kupindira matanho.

4 Zvimwe Zvinodiwa Nokuti bhatiri rakakosha kupa simba kune chikuru chekushandisa purojekiti, inoda BMS chete yakaderera zvakanyanya kushandiswa kwesimba. 5 Kutarisisa kwekupera kweiyo dynamic lithium-ion bhatiri pack inyaya nyowani, uye manejimendi ayo anozobatanidza kutarisisa kwehunyanzvi dhizaini mazano, ane mabasa akakosha akadai senge static, kuchaja, kuburitsa, manejimendi, otomatiki kugadzirisa kwebhatiri mapaketi, uye zadzisa kuita, Kuvimbika kushandiswa zvinodiwa.

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