Nekuda kwekubatana kwavo uye yakakwira torque density, magineti echigarire synchronous motors anoshandiswa zvakanyanya mune akawanda maindasitiri maapplication, kunyanya epamusoro-kuita madhiraivha masisitimu senge submarine propulsion system.Yechigarire magineti synchronous motors haidi kushandiswa kweinotsvedza mhete yekufadza, kuderedza rotor kugadzirisa uye kurasikirwa.Permanent magineti synchronous motors inoshanda zvakanyanya uye inokodzera yakakwirira-inoshanda dhiraivha masisitimu akadai seCNC muchina maturusi, marobhoti uye otomatiki ekugadzira masisitimu muindasitiri.
Kazhinji, dhizaini uye kuvaka kwechigarire magineti synchronous motors inofanirwa kufunga nezve ese stator uye rotor chimiro kuitira kuti iwane yakakwirira-inoshanda mota.
Chimiro chekusingaperi magineti synchronous mota
Air-gap magnetic flux density:Yakatemerwa maererano nekugadzirwa kweasynchronous motors, nezvimwewo, dhizaini yekusingaperi magineti rotors uye kushandiswa kweakakosha zvinodiwa pakuchinja stator windings.Mukuwedzera, zvinofungidzirwa kuti stator is slotted stator.Mhepo gap flux density inogumira nekuzara kweiyo stator core.Kunyanya, iyo peak flux density inoganhurwa nehupamhi hwemazino egiya, nepo kuseri kwe stator kunotaridza iyo yakanyanya kuyerera.
Uyezve, iyo inobvumirwa saturation level inoenderana nekushandisa.Kazhinji, mota dzepamusoro-dzinoshanda dzine yakaderera flux density, nepo mota dzakagadzirirwa yakanyanya torque density ine yakakwira flux density.Iyo peak air gap flux density inowanzo iri muhuwandu hwe 0.7-1.1 Tesla.Izvo zvinofanirwa kucherechedzwa kuti iyi ndiyo yakazara flux density, kureva huwandu hweiyo rotor uye stator fluxes.Izvi zvinoreva kuti kana iyo armature reaction force yakadzikira, zvinoreva kuti torque yekumisikidza yakakwira.
Nekudaro, kuti uwane yakakura kusada torque mupiro, iyo stator reaction simba inofanirwa kuve yakakura.Machina paramita anoratidza kuti hombe m uye diki inductance L inonyanya kudiwa kuti uwane kurongeka torque.Izvi zvinowanzokodzera kushanda pazasi pekumhanya kwepamusoro sezvo yakakwira inductance inoderedza simba chinhu.
Permanent magineti zvinhu:
Magnets anoita basa rakakosha mumidziyo yakawanda, saka, kuvandudza mashandiro ezvishandiso izvi kwakakosha, uye kutarisisa parizvino kwakanangana nepasi isingawanzo uye shanduko yesimbi-yakavakirwa zvinhu zvinogona kuwana magineti echigarire ane akakwira magineti zvinhu.Zvichienderana netekinoroji, magineti ane akasiyana magineti uye emuchina zvivakwa uye anoratidza akasiyana corrosion kuramba.
NdFeB (Nd2Fe14B) uye Samarium Cobalt (Sm1Co5 uye Sm2Co17) magineti ndiyo yakanyanya kutengeserana yekusingaperi magineti zvinhu zviripo nhasi.Mukati mekirasi yega yega yeasingawanzo pasi magineti mune akasiyana siyana emagiredhi.NdFeB magineti akatengeswa mukutanga 1980s.Iwo anoshandiswa zvakanyanya nhasi mune akawanda akasiyana maapplication.Mutengo weiyi magineti zvinhu (pamagetsi chigadzirwa) unofananidzwa neyemagineti eferrite, uye pakirogiramu imwe neimwe, magineti eNdFeB anodhura zvakapetwa kagumi kusvika makumi maviri kupfuura magineti eferrite.
Zvimwe zvakakosha zvivakwa zvinoshandiswa kuenzanisa magineti echigarire ndeaya: remanence (Mr), iyo inoyera simba rekusingaperi magineti magineti, coercive simba (Hcj), kugona kwechinhu kuramba demagnetization, chigadzirwa chesimba (BHmax), density magineti simba. ;Curie tembiricha (TC), tembiricha iyo iyo chinhu chinorasikirwa nemagnetism.Neodymium magineti ane yakakwirira remanence, yakakwirira coercivity uye simba chigadzirwa, asi anowanzo ari epasi Curie tembiricha mhando, Neodymium inoshanda neTerbium uye Dysprosium kuitira kuchengetedza magineti ayo pakupisa kwakanyanya.
Chisingaperi Magnet Synchronous Motor Dhizaini
Mukugadzirwa kwechigarire magineti synchronous mota (PMSM), kuvakwa kwechigarire magineti rotor kunobva pane stator furemu yetatu-chikamu induction mota pasina kushandura geometry ye stator uye windings.Zvinotsanangurwa uye geometry zvinosanganisira: kumhanya kwemota, frequency, nhamba yematanda, kureba kwestator, mukati nekunze madhayamita, nhamba yerotor slots.Dhizaini yePMSM inosanganisira kurasikirwa kwemhangura, kumashure EMF, kurasikirwa kwesimbi uye wega uye mutual inductance, magineti flux, stator kuramba, nezvimwe.
Kuverengera kwe-self-inductance uye mutual inductance:
Inductance L inogona kutsanangurwa sereshiyo yekuyerera kwekubatanidza kune flux-inogadzira ikozvino I, muHenrys (H), yakaenzana neWeber pa ampere.An inductor mudziyo unoshandiswa kuchengetedza simba mune remagineti, zvakafanana nemachengetero anoita capacitor simba mundima yemagetsi.Mainductors anowanzo kuve nemakoiri, anowanzo ronda akatenderedza ferrite kana ferromagnetic musimboti, uye kukosha kwavo kweiyo inductance kunongoenderana nechimiro chemuviri checonductor uye kupenya kwechinhu icho magineti flux inopfuura.
Matanho ekutsvaga inductance ndeaya anotevera:1. Ngatitii pane ikozvino I mune conductor.2. Shandisa mutemo weBiot-Savart kana mutemo weAmpere's loop (kana uripo) kuona kuti B inoenzanirana zvakakwana.3. Verenga iyo yakazara flux inobatanidza ese masekete.4. Wedzera huwandu hwemagineti inoyerera nehuwandu hwezvishwe kuti uwane iyo flux yekubatanidza, uye ita magadzirirwo echigarire magineti synchronous mota nekuongorora maparamita anodiwa.
Chidzidzo ichi chakawana kuti dhizaini yekushandisa NdFeB seiyo AC inogara magineti rotor zvinhu yakawedzera iyo magineti inogadzirwa mumhepo gap, zvichikonzera kudzikiswa kwemukati weiyo stator, nepo yemukati radius ye stator ichishandisa samarium cobalt zvachose. magineti rotor zvinhu zvaive zvakakura.Mhedzisiro inoratidza kuti kurasikirwa kwemhangura kunoshanda muNdFeB kunoderedzwa ne8.124%.Kune samarium cobalt sechigarire magineti zvinhu, iyo magineti flux ichave sinusoidal musiyano.Kazhinji, dhizaini uye kuvaka kwechigarire magineti synchronous motors inofanirwa kufunga nezve ese stator uye rotor chimiro kuitira kuti iwane yakakwirira-inoshanda mota.
mukupedzisa
Permanent magineti synchronous mota (PMSM) imotikari inopindirana inoshandisa yakakwirira magineti zvinhu zvemagineti, uye ine hunhu hwekunyanya kushanda, chimiro chakareruka, uye kudzora kuri nyore.Iyi inogara magineti synchronous mota ine maapplication mukudhonza, mota, marobhoti, uye aerospace tekinoroji.Iyo simba density yeanogara magineti synchronous motors yakakwira kupfuura iyo induction motors yechiyero chimwe nekuti hapana stator simba rakatsaurirwa kugadzira iyo magineti..
Parizvino, dhizaini yePMSM haidi simba repamusoro chete, asiwo yakaderera mashoma uye nguva yakaderera yeinertia.
Nguva yekutumira: Jul-01-2022