Cabbiraadda inductance-ka isku midka ah ee matoorada magnetka joogtada ah

I. Ujeedada iyo muhiimada cabbirida inductance isku mid ah
(1)Ujeedada Cabbiraadda Halbeegyada Farsamaynta Isku-dhafka ah (ie Cross-axis Inductance)
Halbeegyada inductance AC iyo DC waa labada halbeeg ee ugu muhiimsan ee matoorka isku-dhafka ah ee magnet-ka joogtada ah. Heliddooda saxda ah waa shardiga iyo aasaaska xisaabinta sifada mootada, jilitaanka firfircoon iyo xakamaynta xawaaraha. Inductance-ka isku-dhafka ah waxaa loo isticmaali karaa in lagu xisaabiyo hanti badan oo xasilloon sida factor factor, hufnaanta, torque, armature hadda, awoodda iyo xuduudaha kale. Nidaamka xakamaynta ee matoorka joogtada ah ee magnetka joogtada ah iyadoo la adeegsanayo kontoroolka vector, xuduudaha inductor synchronous waxay si toos ah ugu lug leeyihiin algorithm kantaroolka, natiijooyinka cilmi-baarista waxay muujinayaan in gobolka magnetic daciifka ah, qaladka xuduudaha mootada ay keeni karto hoos u dhac weyn oo qulqulka ah. iyo awood. Tani waxay tusinaysaa muhiimada ay leeyihiin cabirrada inductor-ka isku-dhafka ah.
(2)Dhibaatooyinka lagu xuso cabbiraadda inductance isku mid ah
Si loo helo cufnaanta awoodda sare, qaab dhismeedka matoorrada synchronous magnet joogto ah waxaa inta badan loogu talagalay in ay ka sii adag, iyo wareegga magnetic ee matoorku waa ka dheregsan yihiin, taas oo keenta in halbeegga inductance synchronous ee motor kala duwan la saturation wareegga magnetic. Si kale haddii loo dhigo, xuduudaha ayaa isbeddeli doona xaaladaha hawlgalka ee matoorka, si buuxda u leh shuruudaha hawlgalka ee lagu qiimeeyay xuduudaha inductance synchronous si sax ah uma muujin karaan dabeecadda xuduudaha gawaarida. Sidaa darteed, waa lagama maarmaan in la cabbiro qiyamka inductance ee xaaladaha kala duwan ee hawlgalka.
2.matoorka joogtada ah ee magnetka hababka cabbiraadda inductance synchronous
Warqadani waxay ururinaysaa habab kala duwan oo lagu cabbiro inductance isku mid ah oo waxay ka samaysaa isbarbardhig faahfaahsan iyo falanqayntooda. Hababkan waxa loo qaybin karaa qiyaas ahaan laba nooc oo waaweyn: Imtixaanka culayska tooska ah iyo tijaabada aan tooska ahayn. Tijaabada taagan ayaa loo sii kala qaybiyay tijaabada AC static test iyo DC static test. Maanta, qaybta koowaad ee "Habab Tijaabo Inductor Inductor" ayaa sharxi doona habka tijaabada culeyska.

Suugaanta [1] waxay soo bandhigaysaa mabda'a habka culeyska tooska ah. Matoorada birlabeedka joogtada ah sida caadiga ah waxaa lagu falanqeyn karaa iyadoo la adeegsanayo aragtida falcelinta labajibaaran si loo falanqeeyo howlahooda culeyska, iyo jaantusyada wejiga ee koronto-dhaliyaha iyo hawlgalka matoorka ayaa lagu muujiyay sawirka 1 ee hoose. Xagalka korantada θ ee koronto-dhaliye waa togan iyadoo E0 uu dhaafo U, xagasha awooda φ waa mid togan iyadoo I dhaaftay U, iyo xagasha awooda gudaha ψ waa mid togan iyadoo E0 ka sareysa I. Markaad ka badato E0, xagasha awooda xooga φ waa togan iyadoo U dhaafo I, xagasha awooda gudaha ψ waa togan iyadoo aan dhaafo E0.

Jaantuska 1-aad ee jaantuska hawlgalka mootada isku midka ah ee magnet joogto ah
(a) Gobolka koronto-dhaliye (b) Xaaladda matoorka

Marka loo eego jaantuska wejigan waxaa la heli karaa: marka hawlgalka culeyska culeyska magnetka joogtada ah, lagu qiyaaso kicinta kicinta aan culeyska lahayn ee E0, danab terminal armature U, hadda I, xagasha awooda φ iyo xagasha awooda θ iyo wixii la mid ah, waxaa la heli karaa armature hadda ee dhidibka tooska ah, qaybta dhidibka iskutallaabta Id = Isin (θ - φ) iyo Iq = Icos (θ - φ), ka dibna Xd iyo Xq ayaa kara laga helo isla'egta soo socota:

Marka koronto-dhaliye uu socdo:

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

Marka matoorku socdo:

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

Xuduudaha joogtada ah ee mishiinnada isku-dhafka magnet-ka joogtada ah ayaa isbeddela marka xaaladaha shaqada ee matoorku ay isbeddelaan, iyo marka cududku isbeddelo, labadaba Xd iyo Xq ayaa isbeddela. Sidaa darteed, marka la go'aaminayo xuduudaha, hubi inaad sidoo kale muujiso xaaladaha hawlgalka mootada. (Qaddarka beddelka iyo usheeda dhexe ee hadda taagan ama xaglaha awoodda gudaha ee hadda taagan)

Dhibaatada ugu weyn marka la cabbirayo cabbirrada soo-jiidashada ee habka culeyska tooska ah waxay ku jirtaa cabbirka xagasha awoodda θ. Sida aynu ognahay, waa farqiga xagal wajiga u dhexeeya danab terminal motor U iyo xoog koronto kicinta. Marka matoorku si adag u socdo, danab dhamaadka si toos ah ayaa loo heli karaa, laakiin E0 si toos ah looma heli karo, markaa waxa kaliya oo lagu heli karaa hab aan toos ahayn si loo helo calaamad xilliyeed leh oo la mid ah sida E0 iyo farqiga wejiga go'an si loo beddelo. E0 si loo sameeyo isbarbardhigga wajiga iyo danab dhamaadka.

Hababka dadban ee soo jireenka ah waa:
1) ee booska armature ee matoorka hoos imtixaanka garoonka lagu aasay iyo gariiradda asalka ah ee motor ee dhowr markooda silig ganaax sida gariiradda cabbirka ah, si ay u helaan isla weji la mid ah matoorrada dabaylaha hoos signal korantada imtixaanka, iyada oo la barbar dhigo xagal factor awood ayaa la heli karaa.
2) Ku rakib matoor isku mid ah shafka matoorka marka la tijaabinayo kaas oo la mid ah matoorka la tijaabinayo. Habka cabbiraadda wejiga danabka [2], oo hoos lagu tilmaami doono, waxay ku salaysan tahay mabda'an. Jaantuska isku xirka tijaabada ah waxa lagu muujiyay sawirka 2. TSM waa matoorka isku midka ah ee magnetka ee joogtada ah ee tijaabada ku jira, ASM waa matoor isku mid ah oo isku mid ah kaas oo sidoo kale loo baahan yahay, PM waa dhaqdhaqaaqa koowaad, kaas oo noqon kara matoor isku dhafan ama DC motor, B waa biriiga, iyo DBO waa dual beam oscilloscope. Wejiyada B iyo C ee TSM iyo ASM waxay ku xiran yihiin oscilloscope ah. Marka TSM ay ku xiran tahay sahay koronto oo saddex waji ah, oscilloscope-ku wuxuu helayaa calaamadaha VTSM iyo E0ASM. sababtoo ah labada matoor waa isku mid oo si isku mid ah isku shaandheyn, culeyska culeyska la'aanta ee TSM ee tijaabiyaha iyo culeyska culeyska ee ASM, kaas oo u shaqeeya sida koronto-dhaliye, E0ASM, ayaa ku jira marxaladda. Sidaa darteed, xagasha awooda θ, ie, farqiga wajiga u dhexeeya VTSM iyo E0ASM waa la qiyaasi karaa.

Jaantuska 2 Jaantuska fiilooyinka tijaabada ah ee lagu cabbirayo xagasha awooda

Habkan inta badan looma isticmaalo, sababta oo ah: ① ee usheeda dhexe ee rotor ku rakiban matoor yar oo synchronous ama transformer rotary loo baahan yahay in la cabbiro matoorka uu leeyahay laba usheeda dhexe fidsan dhamaadka, taas oo inta badan ay adag tahay in la sameeyo. ② Saxnaanta cabbiraadda xagasha korantadu waxay inta badan ku xidhan tahay nuxurka is-waafajinta sarreeya ee VTSM iyo E0ASM, iyo haddii nuxurka is-waafajinta uu aad u weyn yahay, saxnaanta cabbirka waa la dhimi doonaa.
3) Si loo hagaajiyo saxnaanta tijaabada xagasha awooda iyo fududaynta isticmaalka, hadda isticmaalka badan ee dareemayaasha booska si loo ogaado calaamada booska rotor, ka dibna isbarbardhigga wejiga ee habka ugu dambeeya ee danabka
Mabda'a aasaasiga ah waa in lagu rakibo saxan photoelectric ah oo la saadaaliyay ama ka tarjumaysa on usheeda dhexe ee la qiyaasay motor synchronous magnet joogto ah, tirada godadka si siman loo qaybiyey on disk ama calamadaha madow iyo caddaan iyo tirada lammaane ee ulo of motor synchronous hoos imtixaanka. . Marka saxanku ku wareego hal kacaan oo matoorka ah, dareemaha sawir-qaadista wuxuu helayaa calaamadaha booska rotor wuxuuna abuuraa p garaacyada korantada hooseeya. Marka matoorku si isku mid ah u socdo, inta jeer ee calaamada booska rotor-ka waxay la mid tahay inta jeer ee danab terminal armature, iyo wajigiisa ayaa ka tarjumaysa wajiga xoogga electromotive excitation. Calaamadaha garaaca garaaca is-waafajinta waxaa lagu xoojiyey qaabaynta, marxaladda la beddelay iyo tijaabinta korantada hubaynta matoorka ee isbarbardhigga wajiga si loo helo farqiga wajiga. Deji marka hawlgalka matoorka aan culeyska lahayn, farqiga wejigu waa θ1 (qiyaastii wakhtigan xagasha korantada θ = 0), marka culeysku socdo, farqiga wejigu waa θ2, ka dibna farqiga wajiga θ2 - θ1 waa la qiyaasay Magnet joogto ah oo isku xidhan matoor culeyska xagasha awooda. Jaantuska jaantuska waxa lagu muujiyay sawirka 3.

Jaantuska 3 Jaantuska jaantuska cabbiraadda xagasha awooda

Sida disk photoelectric labis dahaarka leh madow iyo caddaan calaamad waa ka sii adag, iyo marka la qiyaasay magnet joogto ah ulaha motor synchronous waqti isku mid ah calaamadaynta disk ma noqon karaan mid caadi ah oo kasta oo kale. Si ay u fududaato, waxa kale oo lagu tijaabin karaa in usheeda dhexe ee motor magnet joogto ah ku duudduubay wareeg ah cajalad madow, dahaarka leh calaamad cad, iftiinka dareemaha photoelectric iftiimay iftiinka soo ururiyey in goobada this on dusha cajalad ah. Sidan oo kale, mar kasta oo ka mid ah matoorka, shidma photoelectric in transistor photosensitive ay sabab u tahay in la helo iftiin ka tarjumaysa iyo conduction hal mar, taasoo keentay in signal garaaca korantada, ka dib cod-weyneyn iyo qaabaynta si aad u hesho calaamad isbarbardhigga E1. laga soo bilaabo dhamaadka dabaylaha motor armature armature of danab kasta oo laba-weji ah, by transformer danab PT hoos danab hoose, diray in comparator danab, formation of wakiilka wajiga leydi ee signal garaaca garaaca U1. U1 marka loo eego inta jeer ee p-qaybinta, isbarbardhigga wejiga isbarbardhigga si loo helo isbarbardhigga u dhexeeya marxaladda iyo isbarbardhigga wajiga. U1 marka loo eego inta jeer ee p-qaybinta, isbarbardhiga wejiga si loo barbar dhigo farqiga wejigiisa iyo calaamada.
Nuxurka habka cabbiraadda xagasha awooda sare waa in farqiga u dhexeeya labada cabbir la sameeyo si loo helo xagasha awooda. Si looga fogaado labada tiro ee la dhimay oo loo yareeyo saxnaanta, cabirka farqiga wajiga culeyska θ2, dib u noqoshada calaamadda U2, farqiga wejiga la qiyaasay waa θ2'= 180 ° - θ2, xagasha awoodda θ=180 ° - ( θ1 + θ2'), kaas oo u beddelaya labada qiyaasood ee ka goynta wejiga iyo isku darka. Jaantuska tirada wejiga waxa lagu muujiyay sawirka 4.

Jaantuska. 4 Mabda'a habka isku-darka wejiga ee xisaabinta faraqa wejiga

Hab kale oo la wanaajiyey ma isticmaalo qaybinta signallada mawjada leydi-geeska ah ee danabka ah, laakiin isticmaal microcomputer si aad isku mar u duubto waveform-ka signalka, siday u kala horreeyaan, iyada oo loo marayo interface-ga gelinta, diiwaan gelinta korantada aan-load-ka iyo booska rotor-ka mowjadaha U0, E0, iyo sidoo kale korantada culeyska iyo booska rotor ee mawjada qaab dhismeedka leydi ah ayaa calaamad u ah U1, E1, ka dibna u dhaqaaq mowjadaha labada duuban ee midba midka kale ilaa mowjadaha ee labada korantada ee calaamadaha waveform leydi ah ayaa si buuxda isku dul saaran, marka farqiga wejiga u dhexeeya labada rotor Farqiga wejiga ee u dhexeeya labada calaamadaha booska rotor waa xagasha awoodda; ama u guuri qaabka mawjada labada mawjadaha calaamada booska rotor-ka, markaas farqiga wejiga u dhexeeya labada calaamadood ee danabku waa xagasha awooda.
Waa in la tilmaamaa in hawlgalka dhabta ah ma-load ee motor synchronous magnet joogto ah, xagal awood ma eber, gaar ahaan matoorrada yar yar, ay sabab u tahay hawl-load ah oo khasaare lahayn (oo ay ku jiraan khasaaraha naxaasta stator, khasaaraha birta, luminta farsamada, luminta luminta) waa mid aad u weyn, haddii aad u maleyneyso in xagasha awoodda aan culeyska lahayn ee eber, waxay keeni doontaa qalad weyn oo cabbirka xagasha awoodda, taas oo loo isticmaali karo in lagu sameeyo mashiinka DC ee ku shaqeeya gobolka. ee ah matoor, jihada isteerinka iyo isteerinka mootada tijaabinta oo joogto ah, oo leh isteerinka mootada DC, matoorka DC wuxuu ku socon karaa isla gobolka, matoorka DC-na waxaa loo isticmaali karaa matoor tijaabo ah. Tani waxay ka dhigi kartaa matoorka DC inuu ku shaqeeyo gobolka mootada, isteerinka iyo tijaabada mootada isteerinka si waafaqsan mootada DC si ay u bixiso dhammaan khasaaraha ka soo baxa mishiinka tijaabada (oo ay ku jiraan luminta birta, luminta farsamada, luminta luminta, iwm.). Habka xukunku waa in tijaabinta awoodda gelinta mashiinka ay la mid tahay isticmaalka naxaasta stator, taas oo ah, P1 = pCu, iyo danab iyo hadda marxaladda. Markan qiyaasta θ1 waxay u dhigantaa xagasha awoodda eber.
Soo koobid: faa'iidooyinka habkan:
① Habka culeyska tooska ah wuxuu cabbiri karaa inductance saturation-ka joogtada ah ee hoos yimaada xaaladaha kala duwan ee culeyska, umana baahna istaraatijiyad xakameyn ah, taas oo dareen leh oo fudud.
Sababtoo ah cabbirka si toos ah ayaa loo sameeyay culeyska, saameynta saturation iyo saameynta demagnetization hadda ee xuduudaha inductance ayaa la tixgelin karaa.
Khasaaraha habkan:
① Habka culeyska tooska ah wuxuu u baahan yahay in la cabbiro tiro badan isla waqti isku mid ah (saddex weji oo danab ah, hadda jira saddex weji, xagal awood koronto, iwm.), Cabbirka xagasha korantada ayaa aad u adag, iyo saxnaanta imtixaanka tiro kasta waxay saamayn toos ah ku leedahay saxnaanta xisaabinta halbeegyada, iyo dhammaan noocyada khaladaadka ee imtixaanka cabbiradu way fududahay in la ururiyo. Sidaa darteed, marka la isticmaalayo habka tooska ah ee culeyska si loo cabbiro xuduudaha, dareenka waa in la bixiyaa falanqaynta qaladka, oo dooro saxnaanta sare ee qalabka tijaabada.
② Qiimaha kicinta tamarta korantada E0 ee habkan cabbiraadda waxaa si toos ah loogu beddelay korantada korantada ee matoorka iyada oo aan wax culeys ah la saarin, qiyaastani waxay sidoo kale keentaa khaladaad dabiici ah. Sababtoo ah, barta hawlgalka ee magnet joogto ah ayaa isbeddelaya culeyska, taas oo macnaheedu yahay in qulqulka stator ee kala duwan, xajmiga iyo cufnaanta qulqulka ee magnetka joogtada ah ay kala duwan yihiin, sidaas awgeed natiijada kicinta tamarta korontada ayaa sidoo kale ka duwan. Sidan oo kale, ma aha mid aad sax u ah in lagu beddelo xoogga koronto-dhaliyaha kicinta ee xaaladda culeyska leh xoogga koronto-dhaliyaha oo aan culeys lahayn.
Tixraacyo
[1] Tang Renyuan iyo al. Aragtida motor magnet joogto ah casriga ah iyo design. Beijing: Mashiinnada Warshadda. Maarso 2011
[2] JF Gieras, M. Wing. Tignoolajiyada Matoorka Magnet Joogta ah, Naqshadeynta iyo Codsiyada, ed 2nd. New York: Marcel Dekker, 2002: 170 ~ 171
Xuquuqda daabacaadda: Maqaalkani waa dib u daabacaadda tirada dadweynaha ee WeChat peek (电机极客), isku xidhka asalka ahhttps://mp.weixin.qq.com/s/Swb2QnApcCWgbLlt9jMp0A

Maqaalkani ma matalo aragtida shirkadeena. Haddii aad fikrado kala duwan ka qabto, fadlan na sax!