Saboda ƙaƙƙarfan ƙarfinsu da ƙarfin ƙarfin ƙarfinsu, ana amfani da injunan maganadisu na ɗorewa na dindindin a cikin aikace-aikacen masana'antu da yawa, musamman don tsarin tuƙi mai ƙarfi kamar tsarin motsa ruwa na ƙarƙashin ruwa.Dindindin na'ura mai aiki tare da maganadisu baya buƙatar amfani da zoben zamewa don tashin hankali, rage kulawar rotor da asara.Dindindin na'urorin haɗi na maganadisu suna da inganci sosai kuma sun dace da tsarin tuƙi mai ƙarfi kamar kayan aikin injin CNC, injiniyoyin mutum-mutumi da tsarin samarwa mai sarrafa kansa a cikin masana'antu.
Gabaɗaya, ƙira da gina injunan maganadisu na dindindin dole ne suyi la'akari da tsarin stator da na'ura mai juyi don samun injin mai inganci.
Tsarin injin maganadisu na dindindin na dindindin
Yawan ratar iskar maganadisu:Ƙaddara bisa ga ƙira na asynchronous Motors, da dai sauransu, da zane na dindindin maganadisu rotors da kuma amfani da musamman buƙatu don sauya stator windings. Bugu da ƙari, an ɗauka cewa stator ne mai slotted stator.Matsakaicin juzu'in tazarar iska yana iyakance ta saturation na ma'aunin stator.Musamman ma, mafi girman juzu'i yana iyakance ta nisa na haƙoran gear, yayin da bayan stator ke ƙayyade matsakaicin jimlar juyi.
Bugu da ƙari, matakin jikewa da aka yarda ya dogara da aikace-aikacen.Yawanci, manyan injunan injina suna da ƙananan juzu'in juzu'i, yayin da injinan da aka ƙera don matsakaicin ƙarfin juzu'i suna da ƙimar juzu'i mafi girma.Matsakaicin girman tazarar iska yana yawanci a cikin kewayon 0.7-1.1 Tesla.Ya kamata a lura cewa wannan shine jimlar yawan juyi, watau jimlar rotor da stator fluxes.Wannan yana nufin cewa idan ƙarfin amsawar armature ya yi ƙasa, yana nufin cewa jujjuyawar daidaitawa yana da girma.
Duk da haka, don cimma babban gudunmawar juzu'i na rashin son zuciya, ƙarfin amsawar stator dole ne ya zama babba.Siffofin inji sun nuna cewa manyan m da ƙananan inductance L ana buƙata musamman don samun juzu'in jeri.Wannan yawanci ya dace da aiki a ƙasa da saurin tushe kamar yadda babban inductance yana rage ƙarfin wuta.
Abun maganadisu na dindindin:
Magnets suna taka muhimmiyar rawa a cikin na'urori da yawa, sabili da haka, haɓaka aikin waɗannan kayan yana da matukar mahimmanci, kuma a halin yanzu ana mai da hankali kan ƙasa da ba kasafai ba da kayan aiki na tushen ƙarfe waɗanda za su iya samun maganadisu na dindindin tare da manyan kaddarorin maganadisu.Dangane da fasaha, maganadisu suna da kaddarorin maganadisu daban-daban da injina kuma suna nuna juriya daban-daban.
NdFeB (Nd2Fe14B) da Samarium Cobalt (Sm1Co5 da Sm2Co17) maganadiso su ne mafi ci-gaba kasuwanci na dindindin kayan maganadisu samuwa a yau.A cikin kowane nau'in maganadisu na duniya da ba kasafai ba akwai maki iri-iri iri-iri.NdFeB maganadiso an sayar da su a farkon 1980s.Ana amfani da su sosai a yau a yawancin aikace-aikace daban-daban.Farashin wannan maganadiso (kowane samfurin makamashi) yayi kwatankwacin na ferrite maganadiso, kuma akan kowane kilogiram, maganadisun NdFeB sun kai kusan sau 10 zuwa 20 fiye da na ferrite.
Wasu mahimman kaddarorin da aka yi amfani da su don kwatanta abubuwan maganadisu na dindindin sune: remanence (Mr), wanda ke auna ƙarfin filin maganadisu na dindindin, ƙarfin tilastawa (Hcj), ikon kayan don tsayayya da demagnetization, samfurin makamashi (BHmax), ƙarancin ƙarfin maganadisu. ; Curie zafin jiki (TC), yanayin zafin da kayan ke rasa magnetism.Neodymium maganadiso yana da mafi girma remanence, mafi girma tilastawa da makamashi samfurin, amma yawanci na ƙananan Curie zafin jiki, Neodymium aiki tare da Terbium da Dysprosium domin kula da Magnetic Properties a high yanayin zafi.
Zane-zanen Motoci na Magnet Dindindin
A cikin ƙirar injin maganadisu na dindindin na aiki tare (PMSM), ginin na'urar maganadisu na dindindin yana dogara ne akan firam ɗin injin induction mai hawa uku ba tare da canza juzu'i na stator da windings ba.Ƙididdiga da lissafi sun haɗa da: saurin mota, mita, adadin sanduna, tsayin stator, diamita na ciki da na waje, adadin ramukan rotor.Tsarin PMSM ya haɗa da asarar jan ƙarfe, EMF na baya, asarar ƙarfe da kai da inductance na juna, magnetic flux, juriya na stator, da dai sauransu.
Kididdigar kai da inductance juna:
Inductance L za a iya ayyana shi azaman rabon haɗin kai zuwa jujjuyawar samarwa na yanzu I, a cikin Henrys (H), daidai da Weber kowane ampere. Inductor wata na'ura ce da ake amfani da ita don adana makamashi a cikin filin maganadisu, kwatankwacin yadda capacitor ke adana makamashi a cikin wutar lantarki. Inductors yawanci sun ƙunshi coils, yawanci rauni a kusa da ferrite ko ferromagnetic core, kuma ƙimar inductance ɗin su tana da alaƙa ne kawai da tsarin jiki na jagorar da yuwuwar kayan aikin da ƙarfin maganadisu ya wuce.
Matakan samun inductance sune kamar haka:1. A ce akwai I a cikin madugu.2. Yi amfani da dokar Biot-Savart ko dokar madauki na Ampere (idan akwai) don tantance cewa B ya isa daidai.3. Yi ƙididdige jimillar motsin da ke haɗa duk da'irori.4. Haɓaka jimlar maganadisu ta adadin madaukai don samun haɗin kai, da aiwatar da ƙirar injin ɗin maganadisu na dindindin ta hanyar kimanta sigogin da ake buƙata.
Binciken ya gano cewa ƙirar yin amfani da NdFeB a matsayin AC na dindindin magnet na rotor abu ya karu da ƙarfin maganadisu da aka haifar a cikin tazarar iska, wanda ya haifar da raguwa a cikin radius na ciki na stator, yayin da radius na ciki na stator ta amfani da samarium cobalt dindindin. Magnet rotor abu ya fi girma.Sakamakon ya nuna cewa ingantaccen asarar tagulla a cikin NdFeB ya ragu da 8.124%.Don samarium cobalt azaman abin maganadisu na dindindin, motsin maganadisu zai zama bambancin sinusoidal.Gabaɗaya, ƙira da gina injunan maganadisu na dindindin dole ne suyi la'akari da tsarin stator da na'ura mai juyi don samun injin mai inganci.
a karshe
Permanent Magnetic synchronous motor (PMSM) injin ne na aiki tare wanda ke amfani da manyan kayan maganadisu don maganadisu, kuma yana da halaye na ingantaccen inganci, tsari mai sauƙi, da sauƙin sarrafawa.Wannan injin maganadisu na dindindin na aiki tare yana da aikace-aikace a cikin gogayya, motoci, injiniyoyi, da fasahar sararin samaniya. Matsakaicin ƙarfin ƙarfin injin maganadisu na dindindin ya fi na induction induction na ƙima ɗaya saboda babu wani ƙarfin stator da aka keɓe don samar da filin maganadisu. .
A halin yanzu, ƙirar PMSM yana buƙatar ba kawai iko mafi girma ba, har ma da ƙananan taro da ƙananan lokacin rashin aiki.
Lokacin aikawa: Jul-01-2022