Waa maxay faraqa u dhexeeya matoorka soo noqnoqda ee doorsooma iyo matoorka caadiga ah?

Matoorada caadiga ah waxaa loo qaabeeyey iyadoo loo eegayo soo noqnoqoshada joogtada ah iyo danab joogto ah, si buuxda uma buuxin karaan shuruudaha xeerbeegtida xawaaraha beddelka, sidaas awgeed looma isticmaali karo matoorada beddelka soo noqnoqda.

Farqiga u dhexeeya matoorka soo noqnoqda ee isbeddelka ah iyo matoorka caadiga ah ayaa inta badan ka muuqda labada dhinac ee soo socda:

Marka hore, matoorada caadiga ah waxay shaqeyn karaan oo keliya wakhti dheer oo u dhow soo noqnoqda tamarta, halka matoorada isdabajoogga ah ay shaqeyn karaan wakhti dheer xaaladaha si dhab ah uga sarreeya ama ka hooseeya inta jeer ee awoodda;tusaale ahaan, inta jeer ee korontada dalkeena waa 50Hz., Haddii matoorka caadiga ahi uu joogo 5Hz muddo dheer, si dhakhso ah ayuu u fashilmi doonaa ama xataa wuu dhaawacmi doonaa;iyo muuqaalka matoorka inta jeer ee doorsooma ayaa xalliya yaraantan matoorka caadiga ah;

Marka labaad, nidaamyada qaboojinta ee matoorrada caadiga ah iyo matoorada soo noqnoqda ee kala duwan ayaa kala duwan.Habka qaboojinta ee matoorka caadiga ah wuxuu si dhow ula xiriiraa xawaaraha wareega.Si kale haddii loo dhigo, sida ugu dhakhsaha badan ee mootadu u wareegeyso, habka qaboojinta ayaa fiican, iyo mar kasta oo matoorku wareego, waxaa sii fiicnaanaya saamaynta qaboojinta, halka matoorka joogtada ah ee isbeddelka uusan lahayn dhibaatadan.

Ka dib marka lagu daro beddelaha soo noqnoqda ee mootada caadiga ah, hawlgalka beddelka soo noqnoqda waa la xaqiijin karaa, laakiin ma aha matoor beddelaad dhab ah.Haddii uu ka hoos shaqeeyo heerka soo noqnoqda ee aan korontada ahayn muddo dheer, matoorku wuu dhaawacmi karaa.

01 Saamaynta beddelaha soo noqnoqda ee mootada waxay inta badan ku jirtaa hufnaanta iyo kor u kaca heerkulka matoorka

Inverter-ku waxa uu dhalin karaa heerar kala duwan oo danab iswada leh iyo kuwa hadda jira inta lagu jiro hawlgalka, si uu matoorku ugu hoos socdo danab aan sinusoidal ahayn iyo hadda., tan ugu muhiimsan waa luminta naxaasta rotor-ka, khasaarahan ayaa ka dhigi doona matoorka kulayl dheeri ah, hoos u dhigi doona waxtarka, yaraynta awooda wax soo saarka, iyo kor u kaca heerkulka matoorada caadiga ah guud ahaan wuxuu kordhiyaa 10% -20%.

02 Xoogga dahaarka ee matoorka

Inta jeer ee gudbiyaha soo noqnoqda ayaa u dhexeeya dhowr kun ilaa in ka badan toban kilohertz, sidaa darteed dabaylaha stator ee matoorku waa inuu u adkaystaa heerka sare u kaca korantada, taas oo u dhiganta adeegsiga korantada kacsan ee matoorka, taas oo ka dhigaysa Dahaarka isku-dhafan ee matoorku waxay u adkeysaneysaa baaritaan ka sii daran..

03 Harmonic buuqa iyo gariirka korantada

Marka matoorka caadiga ah uu ku shaqeeyo beddelaha soo noqnoqda, gariirka iyo buuqa ka dhasha korantada, makaanikada, hawo-mareenka iyo arrimo kale ayaa sii adkaan doona.Harmonics-ka ku jira sahayda tamarta soo noqnoqda ee doorsooma waxay faragelisaa iswaafajinta booska bannaan ee qaybta korantada ee matoorka si ay u sameeyaan xoogag kicinta korantada ee kala duwan, sidaas darteedna waxay kordhinayaan qaylada.Sababo la xiriira kala duwanaanshaha soo noqnoqoshada dhaqdhaqaaqa ballaaran ee mootada iyo kala duwanaanshaha xawaaraha wareega ee ballaaran, way ku adag tahay inta jeer ee hirarka xoogga korantada ee kala duwan si looga fogaado inta jeer ee gariir dabiiciga ah ee xubin kasta oo ka mid ah matoorka.

04 Dhibaatooyinka qaboojinta ee rpm hoose

Marka inta jeer ee korontadu ay hooseyso, khasaaraha ay sababto harmonics-ka sare ee korontada ayaa weyn;Marka labaad, marka xawaraha matoorku hoos u dhaco, mugga hawada qaboojinta ayaa si toos ah u dhimaya saamiga xawliga ah ee cube, taas oo keenta kulaylka matoorka oo aan la daadin oo heerkulku kor u kaco.korodhka, way adag tahay in la gaaro wax soo saarka torque joogto ah.

05Marka loo eego xaaladda kore, matoorka beddelka soo noqnoqda wuxuu qaataa nashqada soo socota

Iska yaree iska caabbinta stator iyo rotor sida ugu badan ee suurtogalka ah oo yareeya luminta naxaasta ee hirarka aasaasiga ah si ay u kordhiso korodhka khasaaraha naxaasta ah ee ay keento harmonics sare.

Beerta magnetic ugu weyni ma aha mid buuxa, mid waa in la tixgeliyo in harmonics sare ay sii qoto dheereyn doonto saturation ee wareegga magnetic, midda kalena waa in la tixgeliyo in korantada wax soo saarka ee inverter si habboon loo kordhin karo si loo kordhiyo qulqulka wax soo saarka ee hooseeya. soo noqnoqoshada.

Naqshadaynta qaabdhismeedku waa inta badan si loo hagaajiyo heerka dahaarka;dhibaatooyinka gariirka iyo buuqa matoorka ayaa si buuxda loo tixgeliyaa;Habka qaboojintu waxay qabataa qaboojinta hawada ee qasabka ah, taas oo ah, taageeraha qaboojinta mashiinka ugu weyn wuxuu qaataa habka wadista mootada madax-bannaan, iyo shaqada taageeraha qaboojinta ee qasabka ah waa in la hubiyo in matoorku ku socdo xawaare hooseeya.qaboojin.

Gariiradda qaybsan ee matoorka soo noqnoqda doorsoomuhu wuu ka yar yahay, iska caabbinta xaashida birta silikoon way ka weyn tahay, sidaa darteed saamaynta garaaca garaaca badan ee matoorku waa yar yahay, iyo saamaynta shaandhaynta inductance ee matoorka ayaa ka wanaagsan.

Matoorada caadiga ah, taas oo ah, matoorada soo noqnoqda awoodda, kaliya waxay u baahan yihiin inay tixgeliyaan habka bilawga ah iyo xaaladaha shaqada ee hal dhibic oo awood ah (lambarka dadweynaha: xidhiidhada elektiroonigga ah), ka dibna naqshadeynta mashiinka;halka matoorrada soo noqnoqda ee doorsooma ay u baahan yihiin inay tixgeliyaan habka bilawga ah iyo xaaladaha shaqada ee dhammaan dhibcaha beddelka soo noqnoqda, ka dibna naqshadeynta mashiinka.

Si loola qabsado PWM balaca modulated mawjada analog sinusoidal beddelka hadda soo saarka beddelka ah, kaas oo ka kooban wax badan oo harmonics ah, shaqada matoorka soo noqnoqda doorsoomayaasha si gaar ah loo sameeyay dhab ahaantii waxaa loo fahmi karaa sida reactor iyo matoor caadi ah.

01 Farqiga udhaxeeya mootada caadiga ah iyo qaab dhismeedka matoorka inta jeer ee doorsooma

1. Shuruudaha dahaarka sare

Guud ahaan, darajada dahaarka ee matoorka beddelka soo noqnoqda waa F ama ka sarreeya, iyo dahaadhka dhulka iyo xoogga dahaadhka wareegyada waa in la xoojiyaa, gaar ahaan awoodda dahaarka si uu ugu adkaysto korantada kicinta.

2. Shuruudaha gariirka iyo qaylada ee matoorrada soo noqnoqda ayaa sarreeya

Matoorka beddelka soo noqnoqda waa inuu si buuxda u tixgeliyo adkaanta qaybaha mootada iyo guud ahaan, iskuna day inaad kordhiso inta jeer ee dabiiciga ah si aad uga fogaato dhawaaqa mowjadda xoogga kasta.

3. Habka qaboojinta ee matoorka inta jeer ee isbeddelku wuu ka duwan yahay

Matoorka beddelka soo noqnoqda wuxuu guud ahaan qaataa qaboojinta hawo-qaadista ee qasabka ah, taas oo ah, marawaxada qaboojinta ee ugu weyn waxaa wata matoor madaxbannaan.

4. Shuruudaha kala duwan ee tallaabooyinka ilaalinta

Tallaabooyinka dahaarka xajinta waa in loo qaataa matoorada soo noqnoqda ee bedqaba ee leh awood ka badan 160kW.Sababta ugu weyn ayaa ah in ay fududahay in la soo saaro wareegga magnetic asymmetrical, iyo sidoo kale waxay soo saartaa qulqulka qulqulka.Marka qulqulka ay dhaliyaan qaybaha kale ee soo noqnoqonaya si wadajir ah u wada shaqeeyaan, qulqulka qulqulka ayaa si aad ah u kordhi doona, taas oo keeneysa dhaawac, sidaas darteed tillaabooyinka ilaalinta guud ahaan waa la qaadaa.Matoorka soo noqnoqda ee awoodda joogtada ah, marka xawaaruhu dhaafo 3000/min, dufan gaar ah oo leh iska caabin heerkul sarreeya waa in la isticmaalaa si loo magdhabo kor u kaca heerkulka xajinta.

5. Nidaamyada qaboojinta ee kala duwan

Marawaxada qaboojinta ee inta jeer ee isbedbedelka ah waxaa ku shaqeeya sahay koronto oo madax banaan si loo hubiyo awooda qaboojinta joogtada ah.

02 Farqiga u dhexeeya mootada caadiga ah iyo naqshadaynta matoor soo noqnoqda

1. Naqshadaynta Electromagnetic

Matoorada asynchronous caadiga ah, halbeegyada waxqabadka ugu muhiimsan ee lagu tixgaliyo naqshadeynta waa awoodda culeyska, waxqabadka bilowga, hufnaanta iyo qodobka awoodda.Matoorka soo noqnoqda ee isbeddelka ah, sababtoo ah xaashida muhiimka ah waxay u dhigantaa si ka duwan inta jeer ee awoodda, si toos ah ayaa loo bilaabi karaa marka xaashida muhiimka ahi ay ku dhowdahay 1. Sidaa darteed, awoodda culeyska iyo waxqabadka bilawga ah uma baahna in la tixgeliyo wax badan, laakiin furaha Dhibaatada la xalin karo waa sida loo hagaajiyo lammaanaha mootada.La qabsiga sahayda koronto ee aan sinsoidal ahayn.

2. Qaab-dhismeedka

Marka la naqshadeynayo qaab-dhismeedka, waxaa sidoo kale lagama maarmaan ah in la tixgeliyo saameynta sifooyinka korontada ee aan-sinusoidal ahayn ee qaabka dahaarka, gariirka, iyo hababka qaboojinta qaylada ee matoorka soo noqnoqda ee doorsooma.