Mawu Oyamba: Mphamvu zomwe timapatsidwa ndi grid grid nthawi zambiri zimakhala zowoneka bwino.Kawirikawiri, malinga ngati magetsi ali ochepa mkati mwamtundu wina, tikhoza kupeza malo abwino ogwiritsira ntchito magetsi.Koma dongosolo lamagetsi silimapereka mphamvu yabwino.Kuphatikiza apo, palibe njira yoti opanga zida azipereka zida zomwe sizingagwirizane ndi ma dips amagetsi pazida zonse zamagetsi.Vuto lamagetsi lamagetsi limabweretsa zovuta zambiri komanso zovuta pamoyo watsiku ndi tsiku komanso kupanga.Ndiye ndi zida zabwino ziti zolipirira zomwe zilipo kuti muchepetse mphamvu yamagetsi?Nthawi zambiri, timagwiritsa ntchito mitundu itatu ya zida zolipirira: UPS (Uninterruptible Power Supply), Solid State Transfer Switch (SSTS), ndi Dynamic Voltage Restorer (DVR—Dynamic Voltage Restorer).Poyika zida zolipirira izi pakati pa makina opangira magetsi ndi netiweki yamagetsi ya ogwiritsa ntchito.Zida zitatu zolipirira izi zili ndi zabwino ndi zovuta zake.
Magetsi Osasokoneza (UPS-Uninterruptible Power Supply): UPS mwachidule, ndi chipangizo chomwe chimagwiritsidwa ntchito kwambiri pochepetsera chipukuta misozi.Mfundo yogwirira ntchito ya UPS nthawi zambiri imakhala yogwiritsa ntchito mphamvu zamagetsi monga mabatire kusunga mphamvu zamagetsi.Mukakumana ndi vuto la kulephera kwadzidzidzi kwamagetsi, UPS imatha kugwiritsa ntchito mphamvu yomwe yasungidwa pasadakhale kuti isunge magetsi kwa mphindi zingapo mpaka maola angapo.Mwanjira iyi, vuto la voltage sag lomwe limabwera chifukwa chamagetsi amatha kuthetsedwa pakanthawi kochepa.Koma UPS ilinso ndi zofooka zake zodziwika bwino.Magetsi amasungidwa kupyolera mu mphamvu ya mankhwala, ndipo kapangidwe kameneka kameneka kamagwiritsa ntchito mphamvu zambiri.Mabatire osungira mphamvu samangotenga malo ambiri, komanso ndi ovuta kuwasamalira.Pa nthawi yomweyi, kwa katundu omwe amakhudza kwambiri gridi, ndikofunikira kuwonjezera mphamvu zake.Apo ayi, n'zosavuta kuchititsa batire yosungirako mphamvu kulephera.
Solid State Transfer Switch (SSTS—Solid State Transfer Switch), yotchedwa SSTS.M'kati mwa mafakitale opanga mafakitale kapena kugwiritsa ntchito magetsi enieni ndi ogwiritsa ntchito.Nthawi zambiri pamakhala mabasi awiri osiyana kapena mizere yopangira magetsi kuchokera kumagawo osiyanasiyana opangira magetsi.Panthawiyi, imodzi mwa mizere yamagetsi ikasokonekera kapena kutsika kwamagetsi, imatha kusinthidwa mwachangu (5-12ms) kupita kumagetsi ena pogwiritsa ntchito SSTS, motero kuwonetsetsa kuti chingwe chonse chamagetsi chipitilirabe.Kuwonekera kwa SSTS kumayang'ana yankho la UPS.Sikuti ndalama zonse zogulira zida ndizotsika, komanso ndi njira yabwino yothetsera kutsika kwamagetsi amphamvu kwambiri.Poyerekeza ndi UPS, SSTS ilinso ndi zabwino zambiri monga mtengo wotsika, malo ochepa, komanso osakonza.Choyipa chokha ndichakuti mabasi yachiwiri kapena mizere ya mafakitale kuchokera kumagawo osiyanasiyana amafunikira kuti apereke magetsi, ndiko kuti, magetsi osunga zobwezeretsera amafunikira.
Dynamic Voltage Restorer (DVR—Dynamic Voltage Restorer), yotchedwa DVR.Kawirikawiri, idzayikidwa pakati pa magetsi ndi zida zonyamula katundu.DVR ikhoza kubweza mbali ya katunduyo kuti ikhale ndi magetsi otsika mkati mwa milliseconds, kubwezeretsa mbali yonyamula katundu ku voliyumu wamba, ndikuchotsa mphamvu yamagetsi.Ntchito yofunikira kwambiri ya DVR ndikupereka nthawi yokwanira yoyankhira, komanso imatha kuwonjezera kuya kwa chitetezo chamagetsi.Kuzama kwachitetezo kumatha kutanthauziridwa ngati kuchuluka kwa ma voltage sag omwe DVR imatha kulandila.Makamaka kwa ogwiritsa ntchito fakitale, nthawi zambiri, pakakhala kusinthasintha kwamagetsi panthawi yogwira ntchito bwino pamakina ndi zida, zitha kubweretsa vuto pakupambana kopanga, ndiko kuti, padzakhala zinthu zopanda pake.Pogwiritsa ntchito DVR, zomwe zimafunikira pa fakitale zimatha kutsimikizika, ndipo kusokonezeka komwe kumachitika chifukwa cha kusinthasintha kwamagetsi otsika sikungamveke.Koma DVR ilibe njira yobwezera kusokonezeka kwamagetsi kupitirira kuya kwa chitetezo chamagetsi.Choncho, pamene dontho la voteji liri mkati mwa kuya kwa chitetezo chamagetsi, DVR imatha kugwira ntchito yake yoyenera pamene ikutsimikiziridwa kuti ikhale yosasokonezedwa.
The DVR opangidwa ndi Hongyan Zamagetsi ali practicability odalirika: kudalirika mkulu, makamaka lakonzedwa katundu mafakitale, dzuwa mkulu dongosolo, kuyankha mofulumira, wapamwamba rectifier ntchito, palibe jekeseni harmonic, zonse digito kulamulira luso zochokera DSP, odalirika High ntchito, patsogolo kukula kufanana ntchito, kapangidwe kake, mawonekedwe amitundu yambiri okhala ndi mawonekedwe owoneka bwino a TFT, osakonza kwathunthu, otsika mtengo, osafunikira zida zoziziritsa, kapangidwe kakapangidwe kakang'ono, kaphazi kakang'ono ndi zabwino zina zambiri.
Nthawi yotumiza: Apr-13-2023