Ijenereyitha yeDC VS Syncrhonous Generator

Umahluko osisiseko phakathi kwe-DC Generator kunye nejeneretha ehambelanayo inokuqondwa kumagama abo, i-DC generator inika i-Direct Current (DC) kunye ne-Synchronous Generator inika i-Alternating Current (AC).

Yintoni ijenereyitha?

Ijenereyitha sisixhobo somatshini wombane oguqula aMandla oomatshini abe ngaMandla oMbane.

Yintoni umgaqo we ijenereyitha ?

I-EMF iye yanyanzelwa kwi-conductor enqumla kwi-magnetic flux.Umthetho kaFaraday wokungeniswa.

Ngokwalo mgaqo, ukuvelisa umbane kufuneka:

Umhlaba wemagnethi.

Umqhubi obekwe ngaphakathi ebaleni.

Indlela yokudala isantya esizalanayo phakathi kwezi zimbini.

Indlela yokukhupha umbane kwi-conductor.

Ijenereyitha ye-DC, njengoko igama libonisa ukuba ivelisa, umbane we-DC.Kule meko ibala limile.Intsimi ejikelezayo kunye neepali apho i-field winding inxeba kwaye idyokhwe, ifreyimu yangaphandle yomatshini, apho izibonda zidibeneyo zibizwa ngokuba yi-stator.Ngaphakathi kwe-stator kukho i-armature eyenziwe ye-armature core kunye ne-armature winding, ebizwa ngokuba yi-rotor.

Xa i-rotor ijikeleziswa ngezinye iindlela zangaphandle i-coil ye-armature inqumla kwintsimi yamagnetic eyenziwe yi-stator.Umbane oveliswayo ngaloo ndlela utsalwa nge-dint ye-slip rings kunye ne-copper okanye i-carbon brush.Umbane oveliswayo awukho DC ekuqaleni, sisigaba esinye se-AC.

Ngokusebenzisa i-commutator le bidirectional AC iguqulelwa kwi-unidirectional AC.Le yinto enye kodwa hayi i-DC kuphela.

Ngokuxhomekeke kwindlela isekethe yomhlaba ecwangciswe ngayo, iijenereyitha zeDC zizintlobo ezi-2:

Ngokwahlukileyo imincili: ibala linikwe amandla ngumthombo we-DC wangaphandle.

Self Excited: inxalenye ye-EMF eyenziweyo isetyenziselwa ukunika amandla isiphaluka sentsimi.Apha umazibuthe oshiyekileyo usetyenziswa ukuvelisa umbane wokuqala.Kukho iintlobo ezi-3 zeejenereyitha ze-DC ezizingcayo:

Shunt Jenereyitha- Ummandla ukwi-shunt kunye nezixhobo.

Series Generator- Intsimi ikuthotho kunye nezixhobo.

I-Compound Generator- Yindibaniselwano yazo zombini uthotho kunye ne-shunt mechanism.

Ijenereyitha ehambelanayo- isebenza kumgaqo ofanayo kodwa ivelisa isigaba esi-3 se-AC.Kukho omnye umahluko obalulekileyo, kwimeko ye-DC generator intsimi imile, kodwa kwimeko ye-synchronous generator field iyajikeleza kwaye i-armature imile.I-stator yindlu ukuya kwi-3-phase winding.I-voltages eveliswa kula ma-windings yi-120 degrees ngaphandle komnye kwinqanaba.Iijenereyitha ze-synchronous ngoomatshini bomelele ngamandla.

Inzuzo ye-armature yokumisa kukuba, iphelisa iindandatho ze-slip kunye neebhulashi kwimeko, umbane unokukhutshwa ngokuthe ngqo kwii-terminals ze-armature ukwenza inkqubo isebenze ngakumbi ngokunciphisa ukulahleka koqhagamshelwano.Isiphaluka sentsimi sivuyiswa yi-brushless exciter circuit efakwe kwi-rotor shaft.

I-generator ye-AC encinci i-armature efakwe kwi-rotor shaft kwaye intsimi imile.Ibala le-exciter limile libonelelwe nge-dc yangaphandle.Ngokujikeleza kwe-rotor, i-3-phase ac eveliswayo eguqulelwa kwi-dc isebenzisa i-3-phase rectifier nayo ifakwe kwi-rotor.Le DC isetyenziselwa ukunika amandla indawo ephambili.

I-rotor ijikeleziswa kusetyenziswa i-prime mover enokuba ziintlobo ezininzi, umzekelo: i-injini yomphunga, i-injini yamanzi, i-injini yomoya, i-injini kunye njl.

Kuba iseti yejenereyitha yedizili , zonke ezininzi zixhotyiswe ngejenereyitha ye-AC.Siyathemba ukuba ulwazi olungentla luluncedo kuwe ukuba ufunde malunga neejenereyitha.