Ma muli o ko lākou compactness a me ke kiʻekiʻe torque density, hoʻohana nui ʻia nā motors magnet synchronous mau loa i nā noi ʻoihana he nui, ʻoi aku hoʻi no nā ʻōnaehana hoʻokele kiʻekiʻe e like me nā ʻōnaehana submarine propulsion.ʻAʻole pono nā mīkini hoʻokele hoʻomau mau i ka hoʻohana ʻana i nā apo slip no ka hauʻoli, e hōʻemi ana i ka mālama rotor a me nā poho.He maikaʻi loa nā ʻenekini magnet synchronous a kūpono i nā ʻōnaehana hoʻokele kiʻekiʻe e like me nā mīkini mīkini CNC, robotics a me nā ʻōnaehana hana automated i ka ʻoihana.
ʻO ka mea maʻamau, pono e noʻonoʻo ka hoʻolālā a me ke kūkulu ʻana i nā motor synchronous magnet paʻa i ka stator a me ka hoʻolālā rotor i mea e loaʻa ai kahi mīkini hana kiʻekiʻe.
ʻO ke ʻano o ka motor synchronous magnet mau loa
ʻO ka mānoanoa o ka ea-Hoʻoholo ʻia e like me ka hoʻolālā ʻana o nā motika asynchronous, etc., ka hoʻolālā ʻana o nā rotors magnet mau loa a me ka hoʻohana ʻana i nā koi kūikawā no ka hoʻololi ʻana i nā wili stator.Eia kekahi, ua manaʻo ʻia he stator slotted ka stator.Hoʻopili ʻia ka nui o ka flux ea e ka saturation o ke kumu stator.ʻO ka mea kūikawā, ua kaupalena ʻia ka nui o ka flux kiʻekiʻe e ka laulā o nā niho niho, ʻoiai ke kua o ka stator e hoʻoholo i ka nui o ka flux.
Eia kekahi, ʻo ka pae saturation ʻae ʻia e pili ana i ka noi.ʻO ka mea maʻamau, ʻoi aku ka haʻahaʻa o nā kaila kiʻekiʻe, ʻoiai ʻo nā motika i hoʻolālā ʻia no ka nui o ka torque density ʻoi aku ka kiʻekiʻe o ka flux density.ʻO ke kiʻekiʻe o ka ea ea flux density ka mea maʻamau i ka laulā o 0.7-1.1 Tesla.Pono e hoʻomaopopo ʻia ʻo ia ka huina holoʻokoʻa holoʻokoʻa, ʻo ia hoʻi ka huina o nā kahe o ka rotor a me ka stator.'O ia ho'i, inā he ha'aha'a ka mana ho'okō armature, 'o ia ho'i, he ki'eki'e ka torque alignment.
Eia nō naʻe, i mea e hoʻokō ai i kahi hāʻawi torque reluctance nui, pono e nui ka ikaika o ka pane stator.Hōʻike nā ʻāpana mīkini i ka nui o ka m a me ka liʻiliʻi inductance L ka mea nui e loaʻa ai ka alignment torque.He mea maʻamau kēia no ka hana ma lalo o ka wikiwiki kumu e like me ka inductance kiʻekiʻe e hōʻemi i ka mana kumu.
Mea magnet mau loa:
He mea koʻikoʻi nā Magnets i nā mea hana he nui, no laila, he mea nui ka hoʻomaikaʻi ʻana i ka hana o kēia mau mea, a ke nānā ʻia nei ka nānā ʻana i ka honua laha a me ka hoʻololi ʻana i nā mea metala i hiki ke loaʻa nā magnet mau me nā waiwai magnetic kiʻekiʻe.Ma muli o ka ʻenehana, loaʻa nā mea magneti a me nā ʻano mechanical like ʻole a hōʻike i ke kūpaʻa corrosion like ʻole.
ʻO NdFeB (Nd2Fe14B) a me Samarium Cobalt (Sm1Co5 a me Sm2Co17) nā mea hoʻokele waiwai kūʻai kūʻai paʻa loa i loaʻa i kēia lā.Aia i loko o kēlā me kēia papa o nā mākēneki honua like ʻole he ʻano nui o nā māka.Ua kūʻai ʻia nā mea magnet NdFeB i nā makahiki 1980 mua.Hoʻohana nui ʻia lākou i kēia lā i nā noi like ʻole.ʻO ke kumu kūʻai o kēia mea magnet (no kēlā me kēia huahana ikehu) ua hoʻohālikelike ʻia me nā mea magnet ferrite, a ma ke kumu hoʻokahi kilokani, ke kumu kūʻai ʻo NdFeB ma kahi o 10 a 20 mau manawa e like me ka ferrite magnets.
ʻO kekahi mau waiwai koʻikoʻi i hoʻohana ʻia e hoʻohālikelike i nā magnet mau loa: remanence (Mr), e ana i ka ikaika o ke kahua magnetic mau loa, coercive force (Hcj), ka hiki o ka mea ke pale aku i ka demagnetization, huahana ikehu (BHmax), density magnetic ikehu. ;ʻO ka mahana Curie (TC), ka mahana i nalowale ai ka mea mana.ʻOi aku ka kiʻekiʻe o ka neodymium magnet, coercivity kiʻekiʻe a me ka huahana ikehu, akā ʻo ka maʻamau o ke ʻano haʻahaʻa Curie haʻahaʻa, hana ʻo Neodymium me Terbium a me Dysprosium i mea e mālama ai i kāna mau waiwai magnetic i nā wela kiʻekiʻe.
Hoʻolālā kaʻa kaʻa paʻa ʻo Magnet Synchronous
I ka hoʻolālā ʻana o kahi motor synchronous motor mau loa (PMSM), hoʻokumu ʻia ke kūkulu ʻana o ka rotor magnet mau loa ma ka stator frame o kahi ʻekolu-phase induction motor me ka hoʻololi ʻole i ka geometry o ka stator a me nā makani.ʻO nā kikoʻī a me ka geometry e pili ana: ka wikiwiki o ka kaʻa, ka pinepine, ka helu o nā pou, ka lōʻihi stator, nā anawaena o loko a me waho, ka helu o nā slot rotor.ʻO ka hoʻolālā o ka PMSM e pili ana i ka poho keleawe, ka EMF hope, ka hao hao a me ka pono a me ka inductance, magnetic flux, stator resistance, etc.
Ka helu ʻana o ka inductance a me ka inductance:
Hiki ke ho'ākāka 'ia ka Inductance L ma ke 'ano he ratio o ka ho'opili 'ana i ka flux-producing current I, ma Henrys (H), like me Weber per ampere.ʻO ka inductor kahi mea i hoʻohana ʻia no ka mālama ʻana i ka ikehu i loko o kahi māla magnetic, e like me ke ʻano o ka capacitor e mālama ai i ka ikehu ma kahi māla uila.Hoʻokomo pinepine ʻia nā inductors i nā coils, maʻamau e ʻeha a puni kahi ferrite a i ʻole ferromagnetic core, a ʻo kā lākou waiwai inductance e pili wale ana i ke ʻano kino o ka conductor a me ka permeability o ka mea e hele ai ka flux magnetic.
ʻO nā ʻanuʻu e ʻike ai i ka inductance penei:1. Ina paha aia kekahi au i loko o ka mea lawe.2. E hoʻohana i ke kānāwai o Biot-Savart a i ʻole ke kānāwai loop o Ampere (inā loaʻa) no ka hoʻoholo ʻana ua lawa ka hoʻohālikelike ʻana o B.3. E helu i ka huina kahe e pili ana i na kaapuni a pau.4. E hoʻomāhuahua i ka nui o nā puka lou e loaʻa ai ka loulou flux, a e hoʻokō i ka hoʻolālā ʻana o ka mīkini paʻa paʻa synchronous ma ka loiloi ʻana i nā ʻāpana i makemake ʻia.
Ua ʻike ka haʻawina ʻo ka hoʻolālā ʻana o ka hoʻohana ʻana i ka NdFeB e like me ka AC permanent magnet rotor material i hoʻonui i ka flux magnetic i hana ʻia i loko o ka ea ākea, ka hopena i ka emi ʻana o ka radius i loko o ka stator, ʻoiai ka radius i loko o ka stator e hoʻohana ana i ka samarium cobalt mau loa. ʻoi aku ka nui o ka mea magnet rotor.Hōʻike nā hopena i ka hoʻemi ʻia ʻana o ka lilo keleawe maikaʻi ma NdFeB e 8.124%.No ka samarium cobalt ma ke ʻano he mea magnet mau, ʻo ka flux magnetic he ʻano sinusoidal.ʻO ka mea maʻamau, pono e noʻonoʻo ka hoʻolālā a me ke kūkulu ʻana i nā motor synchronous magnet paʻa i ka stator a me ka hoʻolālā rotor i mea e loaʻa ai kahi mīkini hana kiʻekiʻe.
i ka hopena
ʻO ka motor synchronous motor Permanent magnet synchronous motor (PMSM) he motika synchronous e hoʻohana ana i nā mea magnetic kiʻekiʻe no ka magnetization, a loaʻa iā ia nā hiʻohiʻona o ka hana kiʻekiʻe, ka hana maʻalahi, a me ka mana maʻalahi.Loaʻa i kēia mīkini paʻa paʻa synchronous nā noi i ka traction, automotive, robotics, a me ka ʻenehana aerospace.ʻOi aku ka kiʻekiʻe o ka mana o nā motor synchronous magnet mau ma mua o nā kaʻa induction o ka helu hoʻokahi no ka mea ʻaʻohe mana stator i hoʻolaʻa ʻia no ka hana ʻana i ke kahua magnetic..
I kēia manawa, koi ka hoʻolālā o PMSM ʻaʻole i ka mana kiʻekiʻe wale nō, akā ʻo ka haʻahaʻa haʻahaʻa a me ka manawa haʻahaʻa o ka inertia.
Ka manawa hoʻouna: Jul-01-2022