Iimoto ezine-voltage ephezulu ziya kuvelisa i-corona, kutheni iimoto ezine-frequency variable nazo zivelisa i-corona?

I-Corona ibangelwa yintsimi yombane engalinganiyo eveliswa zii-conductors ezingalinganiyo. Ejikeleze intsimi yombane engalinganiyo kwaye kufutshane ne-electrode ene-radius encinci yokugoba, xa i-voltage inyuka ukuya kwinqanaba elithile, kuya kubakho ukukhupha umoya okhululekileyo, okwenza i-corona.

Kwiimeko zokuveliswa kwe-corona, singafumanisa ukuba amasimi ombane angalinganiyo, ii-conductors ezingalinganiyo, kunye nee-voltage eziphezulu ngokwaneleyo ziimeko eziyimfuneko ekudalweni kwe-corona. Ke ngoko, i-corona iya kuveliswa ekupheleni kwe-high-voltage.imotoii-windings, ingakumbi kwii-voltage ezilinganisiweyo. Kwiimoto eziphezulu kune-6kV, i-corona ye-stator winding iya kubonakala ngakumbi, kwaye okukhona i-voltage iphezulu, kokukhona ingxaki ye-corona iya kuba nkulu. Ke ngoko, kwii-motor windings ezine-voltage ephezulu, amanyathelo onyango lwe-anti-corona athathwa ngokusebenzisa iingcingo ezikhethekileyo ze-electromagnetic kunye nokongeza ii-resistive tapes ngaphandle kwee-winding coils.

I-motor ye-variable frequency iqhutywa yi-frequency converter. I-voltage output yi-frequency converter yahlukile kwi-sine wave yombane we-industrial frequency supply, kodwa yi-square wave enokunyuka nokuwa okukhulu. Le pulse wave ekhethekileyo ibangela ukuba i-input voltage ye-motor ibe ne-voltage ephindaphindayo nephezulu. I-voltage ebukhali ephindwe kabini kune-voltage elinganisiweyo, ngenxa yesantya esikhawulezayo kakhulu sale pulse overvoltage, iya kubangela ukusasazwa okungalinganiyo kwentsimi yombane kwii-motor windings. Nangona uninzi lwee-motor ze-variable frequency zii-motor ze-low-voltage, indlela ekhethekileyo yokubonelela ngombane yenzelwe ukuba ne-electrical fields ezingalinganiyo kwii-windings zazo.

Ukusuka kuhlalutyo lweempawu zenani leenguqu kunye nobude bemoto, iinguqu zokuqala nezokugqibela ze-low-voltage high-power winding motor zithwala phantse yonke i-voltage amplitude, kwaye zikwayezona zichaphazeleka kakhulu kwiingxaki ze-motor winding. Ngaphezu koko, ukusuka kuhlalutyo lwenkqubo yokufakela i-winding, Umonakalo kwi-curl yokuqala yokujika mkhulu kakhulu, kwaye ke ngoko umngcipheko mkhulu. Yingakho abavelisi abaninzi beemoto bebonelela ngokhuseleko olukhethekileyo kwii-coil zokuqala nezokugqibela. Kwii-motor ezine-voltage ephezulu eziguquguqukayo ezinamandla aphantsi, ngenxa yamandla angalinganiyo entsimi kunye ne-pulse spike voltage, ukuphela kwe-motor winding kuneemeko ezisisiseko zokuvelisa i-corona. Ukuze kuthintelwe ukwenzeka kwe-corona kwi-variable frequency motor, kufuneka kusetyenziswe iintambo ze-electromagnetic ezikhethekileyo ze-anti-corona kwi-windings ze-variable frequency motor, kwaye kufuneka kuthathwe amanyathelo okukhusela akhethekileyo kwi-coil yokuqala neyokugqibela.