Dab tsi yog qhov Converter Transformer
Lub converter transformer yog ib qho tseem ceeb nyob rau hauv high voltage direct tam sim no (HVDC) systems uas hloov hluav taws xob fais fab ntawm ib daim phiaj mus rau lwm qhov. Hom transformer no yog tsim los hloov AC voltage los ntawm AC kab mus rau hauv DC voltage ua ntej nws xa mus rau qhov ntev.
Hloov pauv hloov pauv tau siv hauv HVDC systems vim tias lawv muab ntau yam txiaj ntsig piv rau cov kab ke AC ib txwm muaj. Ib qho ntawm cov txiaj ntsig tseem ceeb yog tias lawv tuaj yeem hloov pauv ntau lub zog ntawm qhov ntev nrog kev sib kis qis dua. Qhov no yog vim DC lub zog muaj qhov poob qis dua li AC vim qhov tsis muaj reactance thiab cov nyhuv ntawm daim tawv nqaij.
Muaj ob hom kev hloov pauv hloov pauv: monopolar thiab bipolar. Monopolar transformers yog siv nyob rau hauv feem ntau HVDC systems, qhov twg lub hwj chim ntws nyob rau hauv ib qho kev taw qhia nkaus xwb. Bipolar transformers yog siv nyob rau hauv HVDC systems uas lub hwj chim tuaj yeem ntws mus rau ob qho tib si.
Cov transformers feem ntau yog tsim los nrog cov txheej txheem rwb thaiv tsev thiab cua txias kom ntseeg tau tias kev ua tau zoo nyob rau hauv huab cua. Piv txwv li, lawv yuav muaj cov pa roj nitrogen los yog SF6 roj rwb thaiv tsev kom tiv thaiv kev tawg thiab tiv thaiv hluav taws xob arcs. Lawv kuj tseem yuav muaj cov dej los yog roj txias kom tswj tau qhov kub thiab txias.
Hauv cov ntsiab lus, cov hloov pauv hloov pauv ua lub luag haujlwm tseem ceeb hauv HVDC cov tshuab los ntawm kev hloov AC voltage rau DC voltage kom tau txais txiaj ntsig zoo thiab txhim khu kev qha kis tau tus nqi ntawm lub zog ntau dhau mus ntev. Lawv txoj kev tsim thiab kev rwb thaiv tsev ua rau lawv yog ib qho tseem ceeb ntawm kev tswj kom ruaj khov thiab ruaj ntseg daim phiaj hluav taws xob.
