Pakali pano, yabwino harmonic kulamulira luso msika ndi APF mndandanda otsika-voltage yogwira fyuluta opangidwa ndi chopangidwa ndi Hongyan Zamagetsi.Ichi ndi chigawo chamagetsi chamagetsi chozikidwa pa kuyang'anira kwamakono ndi zamakono zamakono zamakono.Gawo lapano la ma harmonic lomwe liyenera kulipidwa limapezeka molingana ndi mawonekedwe owunikira omwe alipo.Poyang'anira choyambitsa cha IGBT, ukadaulo wosinthika wa pulse wide modulation umagwiritsidwa ntchito poyambitsa ma harmonics, zigawo zogwira ntchito komanso mafunde mosiyanasiyana ndi njira yogawa mphamvu kuti akwaniritse zotsatira zochotsa ma harmonics.Zosefera zogwira mtima zimatha kupitilira pafupifupi 95%, potero kuwongolera chitetezo ndi kudalirika kwamagetsi, ndikukwaniritsa cholinga chachitetezo cha chilengedwe, kupulumutsa mphamvu komanso kukulitsa luso.
Kuganiziridwa kwa malamulo amakampani othandizira ndizofunikira kwambiri kuti makampani akwaniritse ulamulilo wa harmonic.Kampani yopangira magetsi imayenera kupanga magetsi oyenerera kwa makasitomala opanga magetsi.Chifukwa chake, kampani yopanga magetsi ikupereka zofunikira zowongolera zomwe zikuchitika kwa ogwiritsa ntchito omwe angaipitsa gululi.Monga makampani ochulukirachulukira amafunikira mphamvu zapamwamba zamagetsi, makampani opanga magetsi amaika patsogolo zofunika kwambiri kwa makasitomala opanga magetsi.
Nthawi zambiri, kuwongolera pang'ono kwa ma harmonic ndi kuwongolera kwapakati kumatha kuphatikizidwa kuti apange njira yotsika mtengo.Kwa katundu wamtundu wa harmonic wokhala ndi mphamvu zapamwamba (monga ng'anjo zapakatikati, zoyambira zofewa, etc.).), pogwiritsa ntchito zosefera zamtundu wapamwamba kwambiri wamagetsi owongolera am'deralo kuti achepetse mphamvu yamagetsi yomwe imalowetsedwa mu gridi yamagetsi.Kwa katundu wa discrete omwe ali ndi mphamvu yaying'ono komanso mphamvu zogawidwa, kasamalidwe kogwirizana kuyenera kuchitidwa pamabasi adongosolo.Mutha kugwiritsa ntchito fyuluta yogwira ya Hongyan kapena fyuluta yopanda kanthu.
Makampani oyenga ndi mankhwala a zitsulo zopanda chitsulo ayenera kugwiritsa ntchito njira ya electrolysis, kotero kuti chowongolera champhamvu kwambiri ndichofunikira.Anthu amatengera kupanga haidrojeni ndi electrolysis ya madzi monga chitsanzo.Anthu ayenera kukhazikitsa seti ya rectifier transformer ndi thyristor rectifier cabinet.Njira ya ballast ndi mtundu wa nyenyezi ya magawo asanu ndi limodzi.Makina osinthira omwe amapangidwa amagwiritsidwa ntchito pa cell electrolytic: 10KV/50HZ-rectifier transformer-phase voltage 172V*1.732 phase voltage 2160A-rectifier cabinet-AC 7200A/179V-electrolytic cell.Chosinthira chosinthira: riyakitala ya magawo asanu ndi limodzi yosinthira nyenyezi kapena magawo atatu magawo asanu ndime zisanu ndi imodzi mbali ziwiri zakumbuyo nyenyezi.Voliyumu ya mzere wolowetsa: 1576 kVA valve mbali voliyumu 2230 kVA mtundu wa voliyumu 1902 kVA thyristor rectifier cabinet K671-7200 A/1179 volts (seti zinayi zonse).Zipangizo zokonzanso zipangitsa kuti pakhale pompopompo, zomwe zingawononge kwambiri mphamvu ya gridi yamagetsi.
Mu chipangizo champhamvu champhamvu chachitatu chamlatho wathunthu wa 6-pulse rectifier, ma harmonics apamwamba kwambiri opangidwa ndi akaunti ya rectifier a 25-33% ya ma harmonics apamwamba kwambiri, omwe angawononge kwambiri gridi yamagetsi, ndipo mawonekedwe apamwamba kwambiri opangidwa ndi 6N ± 1 nthawi, ndiko kuti, nthawi zodziwika pa mbali ya valavu ndi 5th, 7th, 11th, 13th, 17th, 19th, 23rd, 25th, etc., ndi 5th ndi 7th apamwamba. zigawo za harmonic zimapangidwa ndi mfundo ya PCC pa mbali yaikulu ya maukonde Makhalidwe apamwamba a ma harmonics ali kumbali imodzi ya valve, pakati pawo dongosolo la 5 ndi lalikulu, ndipo dongosolo la 7 limachepetsanso.Ntchito yofananira ya gulu losinthira thiransifoma yokhala ndi mafunde osinthira magawo amatha kupanga ma pulses 12, ndipo nthawi zodziwika zapaintaneti ndi nthawi 11, nthawi 13, 23 nthawi, 25, ndi zina zambiri, ndipo nthawi 11 ndi 13 ndizo. chachikulu kwambiri.
Ngati palibe chipangizo chosefera chomwe chimayikidwa pambali ya gululi kapena mbali ya valve, mphamvu yonse yomwe ikulowetsedwa mu gululi idzapitirira muyeso wa makampani a kampani yathu, ndipo mawonekedwe a harmonic omwe amabadwira mu thiransifoma wamkulu adzadutsanso mtengo wolamulira. mulingo wamakampani athu.Ma harmonics apamwamba amayambitsa zingwe zogawa, kutentha kwa thiransifoma, zida zolipirira zolakwika sizingachoke pafakitale, kuwonongeka kwamtundu wa kulumikizana, kuwonongeka kwa kusintha kwa mpweya, ma generator okwera ndi zovuta zina.
Nthawi zambiri, mu network yayikulu yamagetsi, mawonekedwe apamwamba amatha kuchotsedwa pogwiritsa ntchito zida zosefera (fc), ndipo zolinga zowongolera zitha kukwaniritsidwa.Pankhani ya kachitidwe kakang'ono ka gridi yamagetsi, cholinga chothana ndi ma harmonics apamwamba ndi apamwamba.Kuphatikiza pa kuyika kachipangizo kakang'ono kasefa kakang'ono, fyuluta yaying'ono yogwira ntchito (apf) itha kugwiritsidwanso ntchito kukwaniritsa zofunikira zamphamvu.Pamakina okhazikitsira okonzanso omwe ali ndi njira zolumikizirana zosiyanasiyana, makhazikitsidwe athu olipira akatswiri ali ndi mapangidwe osiyanasiyana.Pambuyo poyesedwa pamalopo, amatha "kusintha" makasitomala ndikusankha dongosolo lamankhwala lomwe likugwirizana ndi zomwe zikuchitika pamalopo.
Nthawi yotumiza: Apr-13-2023