Ntụle inductance synchronous nke moto magnet na-adịgide adịgide

I. Ebumnuche na mkpa ọ dị iji tụọ inductance synchronous
(1)Ebumnobi nke ịtụ ihe nrịbama nke inductance mmekọrịta (ya bụ Cross-axis Inductance)
The AC na DC inductance parameters bụ ihe abụọ kacha mkpa n'ime a magnet synchronous moto na-adịgide adịgide. Nnweta ha ziri ezi bụ ihe achọrọ na ntọala maka mgbako njirimara moto, ịme anwansị ike na njikwa ọsọ. Enwere ike iji inductance synchronous iji gbakọọ ọtụtụ ihe na-akwụ ụgwọ dị ka ike ihe, arụmọrụ, torque, armature current, ike na ihe ndị ọzọ. N'ime usoro njikwa nke moto magnet na-adịgide adịgide site na iji njikwa vector, paramita inductor synchronous na-etinye aka na njikwa algọridim, yana nsonaazụ nyocha na-egosi na na mpaghara magnetik adịghị ike, ezighi ezi nke paramita moto nwere ike ibute mbelata dị ukwuu nke torque. na ike. Nke a na-egosi mkpa nke parampat inductor synchronous.
(2) Nsogbu ndị a ga-ahụta n'ịleta inductance synchronous
Iji nweta njupụta ike dị elu, a na-emepụtakarị ihe owuwu magnetik synchronous motors na-adịgide adịgide ka ọ bụrụ ihe mgbagwoju anya, yana sekit magnetik nke moto ahụ juputara, nke na-ebute paramita inductance synchronous nke moto na-agbanwe agbanwe na saturation nke moto. sekit magnetik. N'ikwu ya n'ụzọ ọzọ, paramita ahụ ga-agbanwe na ọnọdụ ọrụ nke moto ahụ, kpamkpam na ọnọdụ arụ ọrụ egosiputara nke paramita inductance synchronous enweghị ike igosipụta nke ọma ọdịdị nke parampat moto. Ya mere, ọ dị mkpa iji tụọ ụkpụrụ inductance n'okpuru ọnọdụ ọrụ dị iche iche.
2.permanent magnet moto synchronous inductance nha ụzọ
Akwụkwọ a na-anakọta ụzọ dị iche iche iji tụọ inductance synchronous ma mee ntụnyere na nyocha nke ọma banyere ha. Enwere ike kewaa ụzọ ndị a n'ụzọ zuru oke n'ime ụdị abụọ bụ isi: ule ibu ozugbo na ule static na-apụtaghị ìhè. A na-ekewa ule static ka ọ bụrụ ule AC static test na DC static test. Taa, nkeji mbụ nke "Ụzọ Nnwale Inductor Synchronous" ga-akọwa usoro ule ibu.

Edemede [1] na-ewebata ụkpụrụ nke usoro ibu ozugbo. Enwere ike nyochaa moto magnet na-adịgide adịgide site na iji usoro mmeghachi omume ugboro abụọ iji nyochaa ọrụ ibu ha, na-egosikwa eserese akụkụ nke generator na moto arụ ọrụ na Figure 1 n'okpuru. Igwe ike θ nke onye na-emepụta ihe dị mma na E0 gafere U, ihe na-akpata ike φ dị mma na m gafere U, na ihe dị n'ime ike ψ dị mma na E0 karịa I. N'ịfefe E0, akụkụ ihe ike ike φ dị mma na U karịrị I, na akụkụ ike nke ime ψ dị mma na m gafere E0.

Fig. 1 Usoro eserese nke magnet na-adịgide adịgide synchronous moto
(a) Steeti Generator (b) Ọnọdụ moto

Dị ka nke a na-adọ eserese nwere ike nweta: mgbe magnet na-adịgide adịgide moto ibu ọrụ, tụrụ dịghị-load excitation electromotive Force E0, armature ọnụ voltaji U, ugbu I, ike ihe angle φ na ike angle θ na na, nwere ike nweta armature. ugbu a nke kwụ ọtọ axis, cross-axis components Id = Isin (θ - φ) na Iq = Icos (θ - φ), mgbe ahụ, Xd na Xq nwere ike nweta site na nha anya:

Mgbe generator na-arụ ọrụ:

Xd=[E0-Ucosθ-IR1cos(θ-φ)]/Id (1)
Xq=[Usinθ+IR1sin(θ-φ)]/Iq (2)

Mgbe moto na-agba ọsọ:

Xd=[E0-Ucosθ+IR1cos(θ-φ)]/Id (3)
Xq=[Usinθ-IR1sin(θ-φ)]/Iq (4)

Ọnọdụ ọnọdụ kwụ ọtọ nke moto synchronous magnet na-adịgide adịgide na-agbanwe ka ọnọdụ moto na-arụ ọrụ na-agbanwe, yana mgbe armature ugbu a na-agbanwe, ma Xd na Xq na-agbanwe. Ya mere, mgbe ị na-achọpụta paramita, jide n'aka na ị ga-egosikwa ọnọdụ ọrụ moto. (Ogo nke ntụgharị na ntụgharị aka ugbu a ma ọ bụ stator current na esịtidem ihe akụkụ ike)

Isi ihe isi ike mgbe ị na-atụle paramita inductive site na usoro ibu ozugbo dabere na nha nke akụkụ ike θ. Dị ka anyị maara, ọ bụ akụkụ akụkụ dị iche n'etiti moto ọnụ voltaji U na excitation electromotive ike. Mgbe moto ahụ na-agba ọsọ nke ọma, enwere ike nweta voltaji njedebe ozugbo, mana enweghị ike nweta E0 ozugbo, yabụ enwere ike nweta ya naanị site na usoro na-apụtaghị ìhè iji nweta akara ngosi oge oge yana otu ugboro dị ka E0 yana ọdịiche dị iche iche nke oge iji dochie anya. E0 iji mee ntụnyere usoro na voltaji njedebe.

Ụzọ ọdịnala na-apụtachaghị ìhè bụ:
1) na armature oghere nke moto n'okpuru ule liri pitch na moto mbụ eriri igwe nke ọtụtụ atụgharị nke ezi waya dị ka a atụ eriri igwe, iji nweta otu oge na moto winding n'okpuru ule voltaji tụnyere mgbaàmà, site ntụnyere nke. Enwere ike nweta akụkụ ihe ike ike.
2) Wụnye moto synchronous na aro nke moto n'okpuru ule nke yiri moto n'okpuru ule. Usoro nha nke voltaji [2], nke a ga-akọwa n'okpuru, dabere na ụkpụrụ a. E gosipụtara eserese njikọ nnwale ahụ na eserese 2. TSM bụ moto synchronous magnet na-adịgide adịgide n'okpuru ule, ASM bụ moto synchronous yiri nke a na-achọkwa, PM bụ onye na-ebugharị ya, nke nwere ike ịbụ moto synchronous ma ọ bụ DC. moto, B bụ breeki, na DBO bụ dual beam oscilloscope. A na-ejikọta akụkụ B na C nke TSM na ASM na oscilloscope. Mgbe ejikọrọ TSM na ọkụ ọkụ nke atọ, oscilloscope na-enweta akara VTSM na E0ASM. n'ihi na abụọ Motors bụ otu na bugharia synchronously, na-adịghị ibu backpotential nke TSM nke tester na-adịghị ibu backpotential nke ASM, nke na-eme dị ka a generator, E0ASM, na-na-adọ. Ya mere, ike n'akuku θ, ya bụ, a na-enwe ọdịiche dị n'etiti VTSM na E0ASM.

Fig. 2 Eserese wiwi nnwale maka ịlele akụkụ ike

A naghị ejikarị usoro a eme ihe, tumadi n'ihi na: ① na rotor shaft mounted small synchronous moto ma ọ bụ rotary transformer chọrọ ka atụta moto nwere ogwe abụọ gbatịrị agbatị, nke na-esikarị ike ime. ② Izi ezi nke nha nkuku ike na-adabere n'ụzọ dị ukwuu na ọdịnaya kwekọrọ dị elu nke VTSM na E0ASM, ma ọ bụrụ na ọdịnaya kwekọrọ dịtụ ukwuu, a ga-ebelata izi ezi nke nha.
3) Iji melite ike n'akuku ule ziri ezi na mfe nke ojiji, ugbu a ọzọ ojiji nke ọnọdụ sensọ ịchọpụta rotor ọnọdụ mgbaàmà, na mgbe ahụ na-adọ ntụnyere na ọgwụgwụ voltaji obibia.
Ụkpụrụ bụ isi bụ ịwụnye diski fotoelectric a tụrụ atụ ma ọ bụ gosipụtara n'elu ogwe nke moto synchronous magnet na-adịgide adịgide, ọnụ ọgụgụ nke oghere ndị a na-ekesa n'otu n'otu na diski ma ọ bụ akara ojii na ọcha na ọnụọgụ abụọ nke okporo osisi nke moto synchronous n'okpuru ule. . Mgbe diski ahụ jiri moto na-agbagharị otu mgbanwe, ihe mmetụta fotoelectric na-anata akara ọnọdụ rotor p ma na-ebute p obere voltaji pulses. Mgbe moto na-agba ọsọ synchronously, ugboro nke rotor ọnọdụ mgbaàmà bụ hà ugboro nke armature ọnụ voltaji, na akụkụ ya na-egosipụta na-adọ nke excitation electromotive ike. A na-eme ka mgbama pulse mmekọrịta dị elu site n'ịkpụzi, gbanwee oge yana voltaji armature moto maka ntụnyere oge iji nweta ọdịiche nke usoro. Tọọ mgbe moto na-adịghị arụ ọrụ, ọdịiche nke oge bụ θ1 (ihe dị ka na n'oge a ike angle θ = 0), mgbe ibu na-agba ọsọ, ọdịiche nke oge bụ θ2, mgbe ahụ, a na-atụle ihe dị iche iche θ2 - θ1. na-adịgide adịgide magnet synchronous moto ibu ike akụkụ uru. E gosipụtara eserese schematic na eserese 3.

Fig. 3 Eserese atụmatụ nke nha akụkụ ike

Dị ka na fotoelectric disk uniformly ntekwasa na oji na-acha ọcha akara bụ ihe siri ike karị, na mgbe tụrụ na-adịgide adịgide magnet synchronous moto okporo osisi n'otu oge akara disk nwere ike ọ bụla ọzọ. Maka mfe, nwekwara ike na-anwale na-adịgide adịgide magnet moto mbanye aro ọbọp na a gburugburu nke nwa teepu, ntekwasa na a na-acha ọcha akara, na-egosipụta photoelectric ihe mmetụta ìhè iyi emitted site ìhè gbakọtara na a gburugburu n'elu nke teepu. N'ụzọ dị otú a, ọ bụla ntụgharị nke moto, photoelectric sensọ na photosensitive transistor n'ihi na-enweta a na-egosipụta ìhè na conduction otu ugboro, na-akpata na eletriki pulse mgbaàmà, mgbe amplification na ịkpụzi iji nweta a ntụnyere mgbaàmà E1. site ule moto armature winding ọgwụgwụ nke ọ bụla abụọ-phase voltaji, site voltaji transformer PT ala a ala voltaji, zigara voltaji comparator, guzobe onye nnọchiteanya nke akụkụ anọ frasi nke voltaji usu mgbaàmà U1. U1 site na ugboro p-nkewa, ntụnyere usoro comparator iji nweta ntụnyere n'etiti usoro na nke comparator. U1 site ugboro p-nkewa, site na comparator nke usoro iji tụnyere ọdịiche nke usoro ya na mgbama.
Mkpebi nke usoro nha ike dị n'elu bụ na ekwesịrị ime ọdịiche dị n'etiti nha abụọ ahụ iji nweta akụkụ ike. Iji zere ọnụọgụ abụọ ewepụrụ ma belata izi ezi, na nha nke ọdịiche nke ibu ibu θ2, ngbanwe akara ngosi U2, ihe dị iche iche tụrụ atụ bụ θ2'= 180 ° - θ2, akụkụ ike θ=180 ° - ( θ1 + θ2'), nke na-atụgharị ọnụọgụ abụọ site na mwepu nke usoro na mgbakwunye. Egosiri ọnụọgụgụ nke usoro na Fig. 4.

Fig. 4 Ụkpụrụ nke usoro mgbakwunye nke oge maka ịgbakọ ọdịiche nke oge

Ụzọ ọzọ emeziwanyewanye nke ọma anaghị eji nkewa ugboro ugboro voltaji akụkụ anọ waveform, kama jiri microcomputer dekọọ n'otu oge mgbama waveform, n'otu n'otu, site na ntinye interface, dekọọ voltaji na-adịghị na rotor ọnọdụ mgbaàmà waveforms U0, E0, yana ibu voltaji na rotor ọnọdụ akụkụ anọ waveform akara U1, E1, wee na-akpali waveforms nke abụọ ndekọ n'ebe ibe ha ruo mgbe waveforms nke abụọ voltaji akụkụ anọ waveform akara na-kpamkpam overlapped, mgbe na-adọ ọdịiche dị n'etiti abụọ rotor The frasi iche. n'etiti abụọ rotor ọnọdụ akara bụ ike n'akuku; ma ọ bụ bugharịa ebili mmiri ahụ gaa na mgbama ọnọdụ rotor abụọ dabara adaba, mgbe ahụ, ọdịiche nke oge dị n'etiti akara voltaji abụọ bụ akụkụ ike.
Ọ ga-kwuru na n'ezie na-adịghị ibu ọrụ nke magnetik synchronous moto na-adịgide adịgide, ike n'akuku abụghị efu, karịsịa maka obere Motors, n'ihi na-adịghị ibu ọrụ nke enweghị ibu ọnwụ (gụnyere stator ọla kọpa ọnwụ, ígwè ọnwụ,) n'ibu ọnwụ, kpafuo ọnwụ) bụ dịtụ nnukwu, ma ọ bụrụ na ị na-eche na ọ dịghị-load ike n'akuku nke efu, ọ ga-eme ka a nnukwu njehie na nha nke ike n'akuku, nke nwere ike iji mee ka DC moto na-agba ọsọ na steeti. nke moto, ntụziaka nke steering na ule moto steering na-agbanwe agbanwe, na DC moto steering, DC moto nwere ike na-agba ọsọ na otu ala, na DC moto nwere ike iji dị ka a ule moto. Nke a nwere ike ime ka moto DC na-agba ọsọ na steeti moto, steering na ule moto steering kwekọrọ na moto DC iji nye mfu ihe niile nke moto ule (gụnyere mfu ígwè, mfu igwe, ihe efu, wdg). Usoro nke ikpe bụ na ule ntinye moto ike dị nhata na oriri ọla kọpa stator, ya bụ, P1 = pCu, na voltaji na ugbu a na oge. Oge a tụrụ θ1 dabara na akụkụ ike nke efu.
Nchịkọta: Uru nke usoro a:
① Usoro ibu dị kpọmkwem nwere ike ịlele inductance saturation steeti kwụsiri ike n'okpuru steeti ibu dị iche iche, ọ chọghịkwa usoro njikwa, nke nwere nghọta ma dị mfe.
N'ihi na a na-eme nha ahụ ozugbo n'okpuru ibu, enwere ike iburu n'uche mmetụta saturation na mmetụta nke demagnetization ugbu a na paramita inductance.
Ọdịmma nke usoro a:
① The kpọmkwem ibu usoro kwesịrị ịlele ọzọ quantities n'otu oge (atọ-phase voltaji, atọ-phase ugbu a, ike ihe angle, wdg), nha nke ike n'akuku bụ ihe siri ike karị, na izi ezi nke ule nke. Ọnụ ọgụgụ nke ọ bụla nwere mmetụta kpọmkwem na izi ezi nke ngụkọta nke paramita, na ụdị njehie ọ bụla na ule paramita dị mfe ịnakọta. Ya mere, mgbe ị na-eji usoro ibu ahụ kpọmkwem iji tụọ ihe ndị ahụ, a ga-akwụ ụgwọ nlebara anya na nyocha njehie, ma họrọ nke ọma dị elu nke ngwa ule.
② Uru nke excitation electromotive Force E0 na usoro nha a bụ voltaji ọdụ ụgbọ ala na-edochi ya ozugbo n'enweghị ibu, yana nso nso a na-ewetakwa mmejọ ndị dị adị. N'ihi na, ebe ọrụ nke magnet na-adịgide adịgide na-agbanwe na ibu, nke pụtara na na dị iche iche stator iyi, permeability na flux density nke na-adịgide adịgide magnet dị iche iche, ya mere excitation electromotive ike pụta dịkwa iche. N'ụzọ dị otú a, ọ bụghị nnọọ ezi iji dochie excitation electromotive ike n'okpuru ibu ọnọdụ na excitation electromotive ike na-enweghị ibu.
Ntụaka
[1] Tang Renyuan et al. Ozizi moto magnet na-adịgide adịgide nke oge a. Beijing: Ụlọ ọrụ mmepụta ihe. Maachị 2011
[2] JF Gieras, M. Wing. Teknụzụ moto Igwe Ọdụdọ na-adịgide adịgide, Nhazi na Ngwa, ed2nd. New York: Marcel Dekker, 2002:170-171
Nwebiisinka: Edemede a bụ mbịgharị nke peek moto nọmba ọha WeChat (电机极客), njikọ izizi.https://mp.weixin.qq.com/s/Swb2QnApcCWgbLlt9jMp0A

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