Transformer, induction motor thiab synchronous motor
Txij li nws yog ib qho tsim nyog yuav tsum tau muab cov khoom ntiag tug tam sim no mus rau ib qho kev lag luam xws li ib lub tshuab ua kom muaj zog thiab ib qho kev siv qis, lub tshuab hluav taws xob nyob rau hauv lub xeev overexcited muaj peev xwm los muab ib daim ntawv tam sim no, uas yog ib qho zoo ntawm lub tshuab synchronous thiab muaj zoo kev coj noj coj ua. Txuas ntxiv, overexcited xeev lub tshuab synchronous ua raws li ib lub tshuab hluav taws xob uas ua rau hluav taws xob ua kom muaj zog hysteretic thiab txo lub hwj chim xav kom muab qhov tshuaj tiv thaiv no. Vim li no, lawv tuaj yeem ua cov haujlwm zoo tib yam li cov nqi hluavtaws. Qee lub sij hawm ib lub tshuab khiav hluav taws xob khiav tsis nyob hauv lub hwj chim system, tsuas yog kho lub hwj huam los sis tswj lub hwj chim. Xws li cov tshuab synchronous no feem ntau hu ua synchronous compensators thiab yog cov neeg yoojyim dua cov chaw nyob ruaj ntseg nyob rau hauv qhov loj loj.
Turbine generator excitation system
Raws li turbo generators tuaj yeem ua kom muaj peev xwm nce ntxiv, nws nce zuj zus ntxiv rau DC excitation currents (mus txog 1000A lossis siab tshaj hauv cov koog loj). Ib qho siv hluav taws xob uas nquag siv yog qhov DC generator uas tau tsav nrog lub tshuab hluav taws xob, cov khoom tsim tawm los ntawm kev txhuam tus nplhaib thiab lub nplhaib rau lub voj voog mus rau thaj tsam ncig ntawm lub tshuab hluav taws xob. Xwb, ib co pa coaxial tsav alternator yuav siv tau ua lub ntsiab exciter muab excitation rau lub ntsiab generator. Cov exciter muaj lub chaw ruaj ruaj thiab ib thaj teb tig, qhov ntau zaus uas yuav 180 Hz los yog 240 Hz, cov zis uas xa mus rau lub chaw ruaj ruaj rectifier, thiab cov zis ntawm tus rectifier muab excitation rau lub cav turbine mus txog (txhuam thiab) nplhaib.
Teb rectifier thiab txhuam tsis txhuam
Cov voj voos, cov lag luam, thiab txhuam hniav yuav tsis cuam tshuam txog kev ua kom txias thiab kho cov teeb meem. Muaj ntau lub caij nyoog ua kom muaj zog tsis txhob muaj teeb meem xws li siv ob peb txoj kev sib txig sib txig li ntau tau thiab txhuam. Piv txwv, qee qhov kev sib tw siv qis siv tsav cov tsav tsheb, tab sis cov kab cua ntawm qhov exciter yog nyob ruaj ruaj thiab lawv cov AC armature windings tig nrog lub hau. Nrog lub teb chaws rectifier, DC excitation tuaj yeem siv rau lub tshav pob ntawm lub tshuab hluav taws xob loj uas tsis muaj cov npuaj nyiab.
