Oomatshini be-synchronous kunye neenjini

Umfanekiso we IiJorts

Ngabo oomatshini abasantya senani elinikiweyo leepali lilodwa kwaye limiselwa ngamaza othungelwano. I-frequency linani lemijikelo kwiyunithi nganye yexesha. Iqhina ngalinye lihamba ngepali engasentla nakwipali esezantsi.

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EYurophu nakuninzi lwehlabathi ukuxhaphaka kothungelwano lwemizi-mveliso yi-50Hz kwaye e-USA nakwamanye amazwe yi-60Hz)

Xa isebenza njengejenereyitha, isantya somatshini kufuneka sibe njalo ngokugqibeleleyo.

Ukusuka kwifomula ilandela ukuba kumatshini ohambelanayo, osebenza njengemoto, ukujikeleza ngezantya ezahlukeneyo, kufuneka zondliwe ngokuguquguquka okuguquguqukayo, okuthe ngqo kwisantya ngasinye. Kodwa ekubeni umsinga wombane obonelelwa ngothungelwano lwemizi-mveliso unefrikhwensi emiselweyo, i-inverter frequency iyafuneka.

Inzuzo

  • Isebenza ngamandla aphezulu kakhulu angafuneki ukulungiswa, ukugcina amandla kunye nemali.
  • Igcina isantya esingaguqukiyo, i-self-synchronized, nkqu nokwahluka komthwalo.
  • Inokusebenza okuphezulu kwaye izinzile kakhulu.
  • I-motor torque ilingana nombane kwaye kwi-asynchronous motor ilingana nesikwere sombane. Ngaloo ndlela, iziphumo zokuhla kwamandla ombane kwinethiwekhi zincinci
  • Umsantsa womoya mkhulu kakhulu, okwandisa ukhuseleko lomatshini.

Ngenxa yolu ncedo, kwii-Megawatts zokuqhuba kunye nesantya esingaguqukiyo, i-synchronous motor esondliwe kwinethiwekhi iyasebenza kakhulu.

Iintsilelo

  • Injini ye-synchronous ayikwazi ukuziqalela ngokwayo. Ukuze isebenze kufuneka sizinyuse kwisantya songqamaniso. Ngoko ke sidinga ufakelo olongezelelweyo ukulungiselela ukuqala.
  • Ukuba kukho ukuhluka ngokukhawuleza komthwalo, isantya se-synchronism phakathi kwe-frequency kunye nesantya sinokulahleka kwaye umatshini uyayeka.
  • Ubunzima beBoot kunye neengxaki zokuzinza.

Umatshini ohambelanayo onikwe amandla ngokuthe ngqo kuthungelwano lwemizi-mveliso, ngokomgaqo, awufanelekanga kakhulu ukusetyenziswa njengemoto.

Xa sibona umatshini kwimodi eyenziweyo, nangona kwimbono yethiyori ayikhathaleli ukuba neepali ze-inductor kwi-stator kunye ne-loop kwi-rotor kunye ne-loop ebekwe kwiindawo zokubeka i-stator kunye nezibonda ze-inductor zondliwe ngokuqhubekayo ngoku. amakhonkco amabini okutyibilika kunye neebrashi okanye ngokuchaseneyo. Kwinqanaba lezobuchwepheshe kunye nolwakhayo alufani kwaye ulungelelwaniso lusetyenziswa.

Ukuze usebenze ngokufanelekileyo, ii-voltages ze-AC kufuneka zifane kangangoko kunokwenzeka kwi-sine wave. Kule nto, kwelinye icala, ukucwangciswa kwendawo ye-wave induction iguqulwa kwaye, kwelinye icala, i-loop ithathelwa indawo yi-winding eyinkimbinkimbi.

Ngokucwangciswa kweekhoyili ezintathu ze-diametric ezineziphumo ezintathu ezizimeleyo kunye ne-120º ngaphandle kwesigaba sokufumana inkqubo yesigaba sesithathu.

Kwiminyaka yakutshanje, ngenxa yokufunyanwa kunye nokuphuculwa kwezixhobo ezineempawu ezintle kakhulu zemagneti kunye ne-samarium, i-cobalt kunye nomhlaba onqabileyo, ii-motor synchronous ezinemagnethi ezisisigxina ziyasetyenziswa, ngaphandle kokuvunguza kwimincili.

Izinto ezilungileyo zeenjini zemagnethi ezisisigxina

Ukungabikho kwamakhonkco e-slip kunye neebrashi. Iingxaki zogcino ezinxulumene neendawo ezihambayo, ebezizezona ndawo zibalulekileyo ze-injini, ziyanyamalala

Njengoko kungabikho i-excitation winding, i-Joule ilahleko kwi-rotor iphelile, iphucula ukusebenza kunye nokwenza kube lula ukupholisa.

Ukungalungi iimagnethi ezisisigxina

Ukuthambekela kwi-demagnetization yemagnethi ngenxa yemisinga emikhulu kwi-armature nangenxa yobushushu obuphezulu obufikelelwe ngexesha lokusebenza kwemoto.

Uvuselelo lulungisiwe kwaye eli xabiso alinakutshintshwa. Okunciphisa useto lwe-injini yokusebenza.

Unokuba nomdla ulawulo kunye nokukhuselwa kweenjini zombane zamashishini.

kwinqanaba loshishino

Intsimi yokusetyenziswa ngokugqwesileyo koomatshini be-synchronous kukuveliswa kwamandla ombane.

Phantse onke amandla ombane avelisiweyo aveliswa ngoomatshini abalungelelanisiweyo kwinguqulelo yabo yejenereyitha. I-avareji yejenereyitha ye-synchronous ingaba phakathi kwe-3 kunye ne-100 MVA kunye nezixhobo zamandla enyukliya ukuya kwi-300 - 1000 MVA. Ngeziphumo ze-1500KV kunye nemisinga yomyalelo we-kA.

Njengemoto, zisetyenziswa ngokubanzi kuluhlu lwe-3 ukuya kwi-30 Megawatts, zikhuphisana kunye ne-asynchronous.

Namhlanje, kunye ne-converteromachines, i-electronic converter assembly plus synchronous machine, bayakhuphisana nangamandla angaphantsi kwe-10kW, kunye nezantya eziguquguqukayo. Yintaba ebiza kakhulu ngenxa yesiguquli. kodwa sele inengeniso kwimizi-mveliso kuloo magunya. ukukhuphisana neenjini ze-DC kunye neenjini ezilinganayo.

Imithombo

  • Izinto ezisisiseko zokujikeleza koomatshini bombane. Luis Serrano Iribarnegaray

Ukuba ungumntu ongaphumliyo njengathi kwaye ufuna ukusebenzisana ekugcinweni nasekuphuculweni kweprojekthi, unokwenza umnikelo. Yonke imali iya kuthenga iincwadi kunye nezixhobo zokuvavanya kunye nokwenza izifundo

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