Ib qho khoom siv hluav taws xob reactive, tseem hu ua lub hwj chim kho qhov cuab yeej, yog qhov tseem ceeb hauv lub zog hluav taws xob.Nws lub luag haujlwm tseem ceeb yog txhawm rau txhim kho lub zog ntawm cov khoom siv hluav taws xob thiab kev faib khoom, yog li ua rau kev siv cov khoom siv hluav taws xob sib txuas thiab cov khoom siv hluav taws xob, kev txhim kho hluav taws xob, thiab txo cov nqi hluav taws xob.Tsis tas li ntawd, kev txhim kho dynamic reactive fais fab nyiaj them nyiaj pab kiag li lawm nyob rau hauv qhov chaw tsim nyog nyob rau hauv cov kev ncua deb kis tau tus mob yuav txhim khu kev ruaj ntseg ntawm cov kis tau tus mob, ua kom muaj peev xwm kis tau tus mob, thiab stabilize qhov voltage ntawm qhov kawg tau txais thiab daim phiaj. ob peb theem ntawm kev loj hlob.Nyob rau hauv thaum ntxov hnub, synchronous theem nce qib yog cov neeg sawv cev, tab sis lawv tau maj mam phased tawm vim lawv loj loj thiab tus nqi siab.Qhov thib ob txoj kev yog siv parallel capacitors, uas muaj lub ntsiab zoo ntawm tus nqi qis thiab yooj yim installation thiab siv.Txawm li cas los xij, txoj kev no yuav tsum tau hais txog cov teeb meem xws li kev sib haum xeeb thiab lwm yam teeb meem tsis zoo ntawm lub zog uas yuav muaj nyob hauv lub cev, thiab kev siv cov khoom siv hluav taws xob ntshiab tau dhau los ua tsis tshua muaj.Tam sim no, cov khoom siv nyiaj them nqi hluav taws xob series yog ib txoj hauv kev siv los txhim kho lub zog.Thaum lub load ntawm cov neeg siv yog tas mus li ntau lawm thiab lub load hloov pauv tus nqi tsis siab, nws yog feem ntau pom zoo kom siv taag them hom nrog capacitors (FC).Xwb, tsis siv neeg them nyiaj hom tswj los ntawm contactors thiab stepwise switching yuav siv tau, uas yog haum rau ob qho tib si nruab nrab thiab tsawg voltage mov thiab tis systems.Rau ceev them nyiaj nyob rau hauv cov ntaub ntawv ntawm ceev load hloov los yog cuam tshuam loads, xws li nyob rau hauv cov roj hmab kev lag luam sib tov. cov tshuab, qhov twg qhov kev thov rau reactive fais fab hloov sai heev, cov pa reactive hwj chim tsis siv neeg them nyiaj systems, uas siv capacitors, muaj kev txwv.Thaum lub capacitor raug txiav tawm ntawm daim phiaj fais fab, muaj qhov seem seem ntawm ob tug ncej ntawm lub capacitor.Qhov loj ntawm qhov seem voltage tsis tuaj yeem kwv yees tau thiab yuav tsum tau 1-3 feeb ntawm lub sijhawm tso tawm.Yog li ntawd, lub ncua sij hawm ntawm reconnection mus rau lub hwj chim daim phiaj yuav tsum tau tos kom txog thaum lub residual voltage txo mus rau hauv qab no 50V, uas ua rau ib tug tsis muaj lus teb ceev.Tsis tas li ntawd, vim muaj ntau qhov sib haum xeeb hauv lub cev, LC-tuned filtering them nyiaj pab kiag li lawm muaj xws li capacitors thiab reactors yuav tsum muaj peev xwm loj los xyuas kom meej qhov kev nyab xeeb ntawm lub capacitors, tab sis lawv kuj tuaj yeem ua rau overcompensation thiab ua rau lub cev muaj zog. ua capacitive.Yog li ntawd, tus static var compensator (SVC) yug.Tus neeg sawv cev ntawm SVC yog tsim los ntawm Thyristor Controlled Reactor (TCR) thiab tsau capacitor (FC).Qhov tseem ceeb ntawm qhov zoo li qub var compensator yog nws lub peev xwm los hloov kho lub zog tsis tu ncua ntawm cov khoom siv them nyiaj los ntawm kev tswj qhov cuam tshuam ncua lub kaum sab xis ntawm thyristors hauv TCR.SVC yog tsuas yog siv nyob rau hauv nruab nrab mus rau high voltage tis systems, thiab nws yog tshwj xeeb tshaj yog haum rau scenarios nrog loj load peev xwm, hnyav harmonic teeb meem, cuam tshuam loads, thiab siab load hloov tus nqi, xws li steel mills, roj hmab industries, non-ferrous metallurgy, hlau ua, thiab kev kub ceev rails. Nrog rau kev txhim kho lub zog hluav taws xob tshuab hluav taws xob, tshwj xeeb tshaj yog qhov tshwm sim ntawm IGBT cov cuab yeej thiab kev nce qib hauv kev tswj cov cuab yeej, lwm hom kev siv hluav taws xob hluav taws xob tau tshwm sim uas txawv ntawm cov tsoos capacitors thiab cov khoom siv reactors. .Qhov no yog Static Var Generator (SVG), uas siv PWM (Pulse Width Modulation) tswj tshuab los tsim lossis nqus lub zog.SVG tsis xav tau impedance xam ntawm lub kaw lus thaum tsis siv, raws li nws siv choj inverter circuits nrog ntau theem lossis PWM thev naus laus zis.Tsis tas li ntawd, piv rau SVC, SVG muaj qhov zoo ntawm qhov me me, nrawm nrawm thiab nrawm nrawm ntawm lub zog reactive, thiab muaj peev xwm los them nyiaj rau ob qho tib si inductive thiab capacitive zog.
Post lub sij hawm: Aug-24-2023