DC Generator VS Syncrhonous Generator

Qhov sib txawv ntawm DC Generator thiab syncrhonous generator tuaj yeem nkag siab los ntawm lawv cov npe, DC generator muab Direct Current (DC) thiab Synchronous Generator muab Alternating Current (AC).

Lub tshuab hluav taws xob yog dab tsi?

Lub tshuab hluav taws xob yog lub tshuab hluav taws xob uas hloov tshuab hluav taws xob rau hluav taws xob.

Dab tsi yog lub hauv paus ntsiab lus ntawm lub tshuab hluav taws xob ?

EMF yog induced nyob rau hauv ib tug conductor txiav los ntawm magnetic flux.Faraday txoj cai ntawm induction.

Raws li txoj cai no, txhawm rau tsim hluav taws xob ib qho xav tau:

Sib nqus teb.

Ib tug neeg xyuas pib muab tso rau hauv lub tshav pob.

Ib lub tswv yim los tsim kev sib raug zoo ntawm ob qho tib si.

Ib tug mechanism rau rho tawm hluav taws xob los ntawm tus neeg xyuas pib.

Lub tshuab hluav taws xob DC, raws li lub npe qhia, DC hluav taws xob.Hauv qhov no, lub teb yog nyob ruaj ruaj.Lub teb winding nrog rau cov ncej uas lub teb winding yog mob thiab tus quab, lub sab nrauv ntawm lub tshuab, uas cov ncej yog sib koom ua ke hu ua stator.Nyob rau hauv lub stator muaj lub armature tsim ntawm armature core thiab armature winding, uas yog hu ua rotor.

Thaum lub rotor tig los ntawm qee qhov sab nraud txhais tau hais tias armature coil txiav los ntawm cov hlau nplaum tsim los ntawm stator.Cov hluav taws xob ua tau li no yog muab rho tawm los ntawm dint ntawm cov hlua khi thiab tooj liab lossis carbon txhuam.Cov hluav taws xob tsim tawm tsis yog DC thawj zaug, nws yog ib theem AC.

Los ntawm kev siv commutator no bidirectional AC hloov mus rau unidirectional AC.Qhov no yog unidirectional tab sis tsis yog DC nkaus xwb.

Nyob ntawm seb lub teb Circuit Court yog li cas DC generators yog 2 hom:

Sib cais zoo siab: lub teb yog energized los ntawm sab nraud DC qhov chaw.

Kev Txaus Siab Rau Tus Kheej: Ib feem ntawm EMF generated yog siv los ua kom muaj zog hauv cheeb tsam.Ntawm no residual magnetism yog siv los tsim hluav taws xob thawj zaug.Muaj 3 yam ntawm tus kheej zoo siab DC generators:

Shunt Generator- Teb yog nyob rau hauv shunt nrog armature.

Series Generator- Teb yog nyob rau hauv series nrog armature.

Compound Generator - Nws yog kev sib xyaw ua ke ntawm ob qho tib si series thiab shunt mechanism.

Lub tshuab hluav taws xob synchronous- ua haujlwm ntawm tib txoj cai tab sis tsim 3-theem AC.Muaj lwm qhov sib txawv tseem ceeb, nyob rau hauv rooj plaub ntawm DC generator lub teb yog nyob ruaj ruaj, tab sis nyob rau hauv cov ntaub ntawv ntawm synchronous generator teb yog rotating thiab armature nyob ruaj ruaj.Lub stator yog lub tsev rau 3-theem winding.Cov voltages generated nyob rau hauv cov windings yog 120 degrees sib nrug ntawm ib leeg nyob rau hauv theem.Synchronous generators yog cov tshuab muaj zog muaj zog.

Qhov kom zoo dua ntawm qhov chaw ruaj ruaj armature yog tias, nws tshem tawm cov hlua khi thiab txhuam los ntawm qhov xwm txheej, hluav taws xob tuaj yeem raug rho tawm ncaj qha los ntawm armature terminals ua cov txheej txheem ntau dua los ntawm kev txo qis kev sib cuag.Lub teb Circuit Court yog zoo siab los ntawm ib tug brushless exciter Circuit Court mounted ntawm lub rotor ncej.

Nws yog lub tshuab hluav taws xob me me AC lub armature uas tau teeb tsa ntawm lub rotor ncej thiab lub teb yog nyob ruaj ruaj.Lub teb ntawm exciter nyob ruaj ruaj yog nkag nrog dc sab nraud.Nrog kev sib hloov ntawm lub rotor, 3-theem ac generated uas yog hloov dua siab tshiab rau dc siv 3-theem rectifier kuj mounted ntawm rotor.Qhov no DC yog siv los ua kom lub zog loj.

Lub rotor yog tig siv prime mover uas yuav ua tau ntau yam, piv txwv li: chav turbine, dej turbine, cua turbine, cav thiab lwm yam.

Rau diesel generator teeb , tag nrho cov feem ntau yog nruab nrog AC generator.Peb vam tias cov ntaub ntawv saum toj no yuav pab tau rau koj kom paub txog cov tshuab hluav taws xob.