N'ihi njupụta ha na njupụta torque dị elu, a na-eji moto synchronous magnet na-adịgide adịgide n'ọtụtụ ngwa ụlọ ọrụ mmepụta ihe, ọkachasị maka sistemu ịnya ụgbọ ala dị elu dị ka sistemu ịkwọ ụgbọ mmiri.Moto synchronous magnet na-adịgide adịgide anaghị achọ ka iji mgbanaka slip maka mkpali, na-ebelata mmezi rotor na mfu.Moto synchronous magnet na-adịgide adịgide na-arụ ọrụ nke ọma ma dabara adaba maka sistemụ ịnya ụgbọ ala dị elu dị ka ngwa igwe CNC, robotics na sistemu mmepụta akpaaka na ụlọ ọrụ.
N'ozuzu, imewe na iwu nke magnet synchronous Motors na-adịgide adịgide ga-atụle ma stator na rotor Ọdịdị iji nweta moto na-arụ ọrụ dị elu.
Ọdịdị nke moto synchronous magnet na-adịgide adịgide
Njupụta magnetik njupụta ikuku:Ekpebiri dị ka imewe nke asynchronous Motors, wdg, imewe nke magnetik rotors na-adịgide adịgide na ojiji nke pụrụ iche chọrọ maka ịmafe stator windings. Tụkwasị na nke ahụ, a na-eche na stator bụ stator slotted.Ọdịiche ikuku njupụta na-ejedebe site na saturation nke isi stator.Karịsịa, ọnụ ọgụgụ kachasị elu na-ejedebe site na obosara nke ezé gia, ebe azụ nke stator na-ekpebi njedebe kachasị elu.
Ọzọkwa, ikike saturation larịị dabere na ngwa.Dị ka ọ na-adịkarị, moto ndị na-arụ ọrụ nke ọma na-enwe njupụta nke ntanye dị ala, ebe ndị moto emebere maka njupụta ike kachasị elu nwere njupụta dị elu.Njupụta ikuku ikuku kacha elu na-abụkarị 0.7-1.1 Tesla.Ekwesiri iburu n'uche na nke a bụ njupụta njupụta njupụta, ya bụ nchikota nke rotor na stator fluxes.Nke a pụtara na ọ bụrụ na ike mmeghachi omume armature dị ala, ọ pụtara na mgbatị nhazi ahụ dị elu.
Otú ọ dị, iji nweta nnukwu ntinye aka na-enweghị mmasị, ike mmeghachi omume stator ga-abụrịrị nnukwu.Akụkụ igwe na-egosi na nnukwu m na obere inductance L bụ nke a na-achọkarị iji nweta ike ngbanwe.Nke a na-adịkarị mma maka ịrụ ọrụ n'okpuru ọsọ ọsọ dị ka inductance dị elu na-ebelata ihe ike.
Ihe ndọta na-adịgide adịgide:
Magnets na-arụ ọrụ dị mkpa n'ọtụtụ ngwaọrụ, ya mere, imeziwanye arụmọrụ nke ihe ndị a dị ezigbo mkpa, na nlebara anya na-elekwasị anya ugbu a na ụwa na-adịghị ahụkebe na ihe ndị dabeere na metal nke nwere ike ịnweta magnets na-adịgide adịgide nwere nnukwu magnetik.Dabere na teknụzụ, ihe ndọta nwere ihe ndọta dị iche iche na akụrụngwa ma gosipụta nguzogide corrosion dị iche iche.
NdFeB (Nd2Fe14B) na Samarium Cobalt (Sm1Co5 na Sm2Co17) ndọta bụ ihe ndọta na-adịgide adịgide azụmahịa kachasị elu dị taa.N'ime klaasị ọ bụla nke magnetik ụwa na-adịghị ahụkebe enwere akara ule dị iche iche.Azụtara ihe ndọta NdFeB na mbido 1980s.A na-eji ha eme ihe taa n'ọtụtụ ngwa dị iche iche.Ọnụ ihe ndọta a (kwa ngwaahịa ike) dị ka nke magnetik ferrite, na n'otu kilogram, magnet NdFeB na-eri ihe dị ka okpukpu 10 ruo 20 karịa ihe ndọta ferrite.
Ụfọdụ ihe ndị dị mkpa eji atụnyere ndọta na-adịgide adịgide bụ: remanence (Mr), nke na-atụ ike nke magnet magnetik na-adịgide adịgide, ike mmanye (Hcj), ikike nke ihe ahụ iji guzogide demagnetization, ngwaahịa ume (BHmax), njupụta magnetik ike. ; Curie okpomọkụ (TC), okpomọkụ nke ihe onwunwe na-efunahụ magnetism ya.Neodymium magnetik nwere elu remanence, elu coercivity na ike ngwaahịa, ma n'ozuzu nke ala Curie okpomọkụ ụdị, Neodymium na-arụ ọrụ na Terbium na Dysprosium iji nọgide na-enwe magnetik Njirimara na elu okpomọkụ.
Nhazi moto Njikọta Igwe Ọdụdọ na-adịgide adịgide
N'ime imewe nke moto synchronous magnet na-adịgide adịgide (PMSM), owuwu nke rotor magnet na-adịgide adịgide dabere na stator frame nke moto induction nke atọ na-agbanweghị geometry nke stator na windings.Nkọwapụta na geometry gụnyere: ọsọ moto, ugboro, ọnụ ọgụgụ okporo osisi, ogologo stator, n'ime na mpụta dayameta, ọnụ ọgụgụ nke oghere rotor.Nhazi nke PMSM na-agụnye mfu ọla kọpa, azụ EMF, mfu ígwè na onwe na inductance, magnetik flux, stator resistance, wdg.
Mgbakọ nke ime onwe ya na imekọ ihe ọnụ:
Enwere ike kọwapụta Inductance L dị ka oke njikọ njikọ na mpụta na-emepụta ugbu a I, na Henrys (H), hà Weber kwa ampere. Inductor bụ ngwaọrụ eji echekwa ike n'ime oghere magnetik, dịka otu capacitor si echekwa ike n'ime ọkụ eletrik. Inductors na-enwekarị eriri igwe, na-enwekarị mmerụ ahụ gburugburu ferrite ma ọ bụ ferromagnetic core, uru inductance ha na-emetụta naanị n'ụdị anụ ahụ nke onye na-eduzi ya na ikike nke ihe ndọta ahụ na-agafe.
Nzọụkwụ ịchọta inductance bụ ndị a:1. Were ya na enwere m ugbu a na onye nduzi.2. Jiri iwu Biot-Savart ma ọ bụ iwu loop Ampere (ọ bụrụ na ọ dị) iji chọpụta na B bụ nke ọma.3. Gbakọọ mkpokọta flux na-ejikọta sekit niile.4. Mụbaa mkpokọta magnetik site na ọnụ ọgụgụ loops iji nweta njikọ nke flux, ma mee atụmatụ nke moto synchronous magnet na-adịgide adịgide site n'ịtụle ihe ndị achọrọ.
Ọmụmụ ihe ahụ chọpụtara na imewe nke iji NdFeB dị ka AC magnet rotor na-adịgide adịgide na-abawanye ụba nke magnetik na-emepụta na oghere ikuku, na-eme ka mbelata n'ime radius nke stator, ebe n'ime radius nke stator na-eji samarium cobalt na-adịgide adịgide. ihe ndọta rotor buru ibu.Nsonaazụ gosiri na mfu ọla kọpa dị irè na NdFeB na-ebelata site na 8.124%.Maka samarium cobalt dị ka ihe ndọta na-adịgide adịgide, ntụgharị magnet ga-abụ mgbanwe sinusoidal.N'ozuzu, imewe na iwu nke magnet synchronous Motors na-adịgide adịgide ga-atụle ma stator na rotor Ọdịdị iji nweta moto na-arụ ọrụ dị elu.
na ngwụcha
Igwe ndọta synchronous nke na-adịgide adịgide (PMSM) bụ moto na-arụkọ ọrụ nke na-eji ihe ndọta dị elu maka ndọta, ma nwee njiri mara oke arụmọrụ, nhazi dị mfe na njikwa dị mfe.Moto synchronous magnet na-adịgide adịgide nwere ngwa na traction, automotive, robotics, na teknụzụ ikuku. Ike njupụta nke moto synchronous magnet na-adịgide adịgide dị elu karịa nke moto induction nke otu ọkwa n'ihi na ọ nweghị ike stator raara onwe ya nye n'ịmepụta oghere magnetik. .
Ka ọ dị ugbu a, imewe nke PMSM chọrọ ọ bụghị naanị ike dị elu, kamakwa obere oke na obere oge nke inertia.
Oge nzipu: Jul-01-2022