Nei kumhanya kwemota kuchikwira nekukwira kuchifambiswa nemutengo?

nhanganyaya

 

 

Pa "2023 Dongfeng Motor Brand Spring Conference" muna Kubvumbi 10, iyo Mach E simba remagetsi brand yakaburitswa. E inomirira magetsi, kushanda kwepamusoro, kuchengetedza simba uye kuchengetedza kwezvakatipoteredza.Mach E inonyanya kuumbwa matatu makuru echigadzirwa mapuratifomu: electric drive, bhatiri uye simba rekuwedzera.

 

Pakati pavo, iyo Mach yemagetsi drive chikamu ine zvinotevera maitiro:

 

  • Motokari ine kabhoni faibha yakavharwa rotor tekinoroji, kumhanya kunogona kusvika 30,000 rpm;
  • kutonhora kwemafuta;
  • Flat wire stator ine 1 slot uye 8 waya;
  • Self-developed SiC controller;
  • Kunyanya kushanda kwegadziriro kunogona kusvika 94.5%.

 

Kuenzaniswa nemamwe matekinoroji,iyo kabhoni fiber-yakavharidzirwa rotor uye kumhanya kwepamusoro kwe30,000 rpm kwave kunonyanya kusiyanisa kweiyo magetsi drive.

 

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Mach E 30000rpm magetsi ekutyaira

 

Yakakwira RPM uye Yakaderera Mutengo Intrinsically Linke

Iyo yakanyanya kumhanya yemota nyowani yemagetsi yakawedzera kubva kune yekutanga 10,000rpm kusvika ikozvino yakakurumbira 15,000-18,000rpm.Munguva ichangopfuura, makambani akatanga anopfuura 20,000rpm emagetsi ekutyaira masisitimu, saka nei kumhanya kwemagetsi matsva kukwira nekukwira?

 

Hongu, mhedzisiro inofambiswa nemutengo!

 

Izvi zvinotevera ongororo yehukama pakati pekumhanya kwemota uye mutengo wemota padanho re theoretical uye simulation.

 

Iyo nyowani simba yakachena yemagetsi drive system inowanzo sanganisira zvikamu zvitatu, iyo mota, mota controller uye giya bhokisi.Iyo mota controller ndiyo yekupedzisira yekupinza yesimba remagetsi, giya bhokisi ndiko kupera kwemagetsi emagetsi, uye mota ndiyo inoshandura unit yemagetsi emagetsi uye mechini simba.Maitiro ayo ekushanda ndeokuti mutongi anopinza simba remagetsi (ikozvino * voltage) mumotokari.Kuburikidza nekudyidzana kwesimba remagetsi uye magineti simba mukati memota, inoburitsa simba remagetsi (kumhanya * torque) kubhokisi regiya.Iyo giya bhokisi inotyaira mota nekugadzirisa kumhanya uye torque inobuda nemota kuburikidza negiya rekudzikisa reshiyo.

 

Nekuongorora iyo mota torque formula, zvinogona kuoneka kuti mota inobuda torque T2 inopindirana neiyo mota vhoriyamu.

 

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N ndiyo nhamba yekutendeuka kwe stator, ini ndiri kupinza ikozvino kwe stator, B ndiyo air flux density, R ndiyo radius ye rotor core, uye L ndiyo yakareba yemotor core.

 

Panyaya yekuona huwandu hwekutendeuka kwemota, iyo yekupinda ikozvino yemutongi, uye flux density yemotor air gap, kana kudiwa kweiyo torque T2 yekubuda kwemota kwakadzikiswa, kureba kana dhayamita iron core inogona kuderedzwa.

 

Shanduko yehurefu hweiyo motor core haibatanidzi shanduko ye stamping die ye stator uye rotor, uye shanduko iri nyore, saka yakajairika mashandiro ndeyekuona dhayamita yepakati uye kuderedza kureba kwepakati. .

 

Sezvo kureba kwesimbi musimboti kunoderera, huwandu hwemagetsi emagetsi (simbi musimboti, magineti simbi, mota mhepo) yemota inodzikiswa.Electromagnetic zvinhu zvinoverengera chikamu chakakura chemutengo wemota, inoverengera 72%.Kana torque inogona kudzikiswa, mutengo wemota uchadzikiswa zvakanyanya.

 

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Motor cost kuumbwa

 

Nekuda kwekuti mota nyowani dzesimba dziine kudiwa kwakatemwa kwemavhiri ekupedzisira torque, kana torque yekubuda yemota ichidzikiswa, chiyero chekumhanya chegiya bhokisi chinofanira kuwedzerwa kuti ive nechokwadi chekuti vhiri rekupedzisira torque yemotokari.

 

n1=n2/r

T1=T2×r

n1 ndiyo kumhanya kwegumbo rinopera, n2 ndiko kumhanya kwemota, T1 ndiyo torque yegumbo rinopera, T2 ndiyo torque yemota, uye r ndiyo chiyero chekudzikisa.

 

Uye nekuda kwekuti mota nyowani dzemagetsi dzichiri nezvinodiwa zvekumhanya zvakanyanya, iyo yakanyanya kumhanya yemotokari inodzikirawo mushure mekunge chiyero chekumhanya chegiya bhokisi chawedzerwa, izvo zvisingagamuchirwe, saka izvi zvinoda kuti kumhanya kwemota kuwedzere.

 

Kupedzisa,mushure mekunge mota yadzikisira torque uye nekumhanyisa, iine mwero wekumhanya, inogona kuderedza mutengo wemotor uku ichisimbisa kudiwa kwemagetsi emotokari.

Kufurira kwe de-torsion kukurumidza-kukwira pane zvimwe zvivakwa01Mushure mekudzikisa torque uye nekumhanyisa, kureba kweiyo mota yepakati inoderera, ichakanganisa simba here? Ngatitarisei pane formula yesimba.

 

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U ndiyo chikamu chemagetsi, ini ndini stator yekuisa ikozvino, cos∅ ndiyo simba chinhu, uye η ndiko kugona.

 

Iyo inogona kuoneka kubva muchimiro chekuti hapana maparamita ane hukama nehukuru hwemota mune fomula yemagetsi emagetsi ekubuda, saka shanduko yehurefu hweiyo motor core haina mhedzisiro pasimba.

 

Izvi zvinotevera mhedzisiro yekuenzanisa kwekunze kweimwe mota. Kuenzaniswa neyekunze hunhu curve, kureba kwesimbi musimboti kunoderedzwa, iyo torque yekubuda yemota inova diki, asi iyo yakanyanya kuburitsa simba haishanduke zvakanyanya, izvo zvakare zvinosimbisa iyo pamusoro theoretical derivation.

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Kuenzanisa kwekunze hunhu macurves emagetsi emagetsi uye torque ane akasiyana esimbi musimboti kureba

 

02Kuwedzera kwekumhanya kwemota kunoisa mberi kwepamusoro zvinodiwa pakusarudzwa kwemabheya, uye mabheji akakwira anodiwa kuti ave nechokwadi chehupenyu hwekushanda hwemabheya.

03High-speed motors inonyanya kukodzera kutonhora kwemafuta, iyo inogona kubvisa dambudziko rekusarudzwa kwechisimbiso chemafuta paunenge uchiona kupisa kwekupisa.

04Nekuda kwekumhanya kwakanyanya kwemota, inogona kutariswa kushandisa yakatenderedza waya mota pachinzvimbo cheyakadzika waya mota kudzikisa kurasikirwa kwe AC kwemhepo nekumhanya kukuru.

05Kana nhamba yemapuranga emotokari yakagadziriswa, nguva yekushanda yemotokari inowedzera nekuda kwekuwedzera kwekukurumidza. Kuti uderedze maharmonics aripo, zvinodikanwa kuti uwedzere kushandura frequency yemagetsi module. Naizvozvo, SiC controller ine yakakwira switching frequency kuramba ishamwari yakanaka kune yakakwira-kumhanya motors.

06Kuti udzikise kurasikirwa kwesimbi nekumhanya kwakanyanya, zvinodikanwa kufunga nezve kusarudzwa kwekurasikirwa kwakaderera uye yakakwirira simba ferromagnetic zvinhu.

07Ita shuwa kuti rotor haigone kukuvadzwa nekuda kwekumhanya kwakanyanya pa1.2 nguva yekumhanya kwakanyanya, senge optimization yeiyo magineti isolation bridge, kabhoni fiber coating, nezvimwe.

 

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Carbon fiber weaving mufananidzo

 

Pfupisa

 

 

Kuwedzera kwekumhanya kwemota kunogona kuchengetedza mutengo wemota, asi kuwedzera kwemutengo wezvimwe zvikamu zvinodawo kutariswa muchiyero.High-speed motors ichave iyo nzira yekusimudzira yemagetsi ekutyaira masisitimu. Iyi haisi nzira chete yekuchengetedza mari, asiwo chiratidzo chehunyanzvi danho rebhizinesi.Iko kuvandudza uye kugadzirwa kweakakwira-kumhanya motors kuchiri kuoma zvakanyanya. Pamusoro pekushandiswa kwezvinhu zvitsva uye maitiro matsva, zvinodawo mweya wekugona kwevanjiniya vemagetsi.


Nguva yekutumira: Kubvumbi-19-2023