I-DC Generator VS Syncrhonous Generator

Umehluko oyisisekelo phakathi kwe-DC Generator kanye ne-synchonous generator ungaqondwa emagameni abo, i-DC generator inikeza i-Direct Current(DC) kanye ne-Synchronous Generator inikeza i-Alternating Current(AC).

Yini ijeneretha?

Ijeneretha iyisisetshenziswa se-electro-mechanical esiguqula Amandla Emishini abe Amandla Kagesi.

Uyini umgomo we ijeneretha ?

I-EMF ingeniswa ku-conductor enqamula i-magnetic flux.Umthetho kaFaraday wokungeniswa.

Ngokwalesi simiso, ukukhiqiza ugesi umuntu udinga:

Insimu kazibuthe.

I-conductor ebekwe ngaphakathi kwenkundla.

Indlela yokudala isivinini esihlobene phakathi kwakho kokubili.

Indlela yokukhipha ugesi ku-conductor.

Ijeneretha ye-DC, njengoba igama liphakamisa ukuthi ikhiqiza, ugesi we-DC.Kulokhu inkundla imile.Insimu esonteka kanye nezigxobo lapho kuboshwe khona insimu kanye nejoka, uhlaka lwangaphandle lomshini, lapho izigxobo zihlangene khona libizwa ngokuthi i-stator.Ngaphakathi kwe-stator kune-armature eyakhiwe ye-armature core kanye ne-armature winding, ebizwa ngokuthi i-rotor.

Lapho i-rotor izungeziswa ngezinye izindlela zangaphandle ikhoyili yengalo inqamula endaweni kazibuthe eyenziwe yi-stator.Ugesi okhiqizwayo ukhishwa nge-dint yama-slip rings ne-copper noma i-carbon brush.Ugesi okhiqizwayo awuyona i-DC ekuqaleni, uyisigaba esisodwa se-AC.

Ngokusebenzisa i-commutator le AC eqondiswa kabili iguqulelwa ku-AC yendawo yonke.Lokhu kuyi-unidirectional kodwa hhayi i-DC kuphela.

Kuya ngokuthi isekethe yasensimini ihlelwa kanjani amajeneretha e-DC ayizinhlobo ezi-2:

Ijabulile ngokwehlukana: inkambu inikwa amandla umthombo wangaphandle we-DC.

Ukuzithokozisa: ingxenye ye-EMF ekhiqiziwe isetshenziselwa ukunika amandla isekethe yasensimini.Lapha i-magnetism eyinsalela isetshenziswa ukukhiqiza ugesi wokuqala.Kunezinhlobo ezi-3 zamajeneretha e-DC azijabulisa ngawo:

I-Shunt Generator- Inkambu iseduze ne-armature.

I-Series Generator- Inkambu ikuchungechunge nge-armature.

I-Compound Generator- Yinhlanganisela yakho kokubili uchungechunge nendlela ye-shunt.

Ijeneretha ehambisanayo- isebenza ngomgomo ofanayo kodwa ikhiqiza i-AC yezigaba ezi-3.Kunomunye umehluko obalulekile, uma kwenzeka i-DC generator inkambu imile, kodwa uma kwenzeka i-synchronous generator field iyazungeza futhi i-armature imile.I-stator iyindlu eya ku-3-phase winding.Ama-voltage akhiqizwa kula ma-windings angama-degree angama-120 ngokuhlukana komunye nomunye ngesigaba.Amajeneretha angama-synchronous ayimishini enamandla amakhulu.

Inzuzo ye-armature emile ukuthi, iqeda ama-slip rings nama-brushes esimweni, ugesi ungakhishwa ngokuqondile kumatheminali we-armature okwenza inqubo iphumelele kakhulu ngokunciphisa ukulahlekelwa kokuxhumana.Isifunda sensimu sijatshuliswa yi-brushless exciter circuit efakwe ku-rotor shaft.

Ijeneretha encane ye-AC i-armature yayo efakwe ku-rotor shaft futhi inkundla imile.Inkambu ye-exciter emile ihlinzekwa nge-dc yangaphandle.Ngokuzungezisa i-rotor, i-3-phase ac ekhiqizwayo eguqulelwa ku-dc kusetshenziswa isilungisi sezigaba ezi-3 siphinde sifakwe ku-rotor.Le DC isetshenziselwa ukunika amandla inkambu eyinhloko.

I-rotor ijikeleziswa kusetshenziswa i-prime mover engaba yezinhlobo eziningi, isibonelo: i-steam turbine, i-turbine yamanzi, i-wind turbine, injini nokunye.

Ngoba isethi ye-diesel generator , zonke eziningi zifakwe ijeneretha ye-AC.Sithemba ukuthi ulwazi olungenhla luwusizo kuwe ukuze ufunde mayelana namajeneretha.