M'nkhani yapitayi, tinayambitsa chisankho cha DC AC. "nkhondo" inatha ndi kupambana kwa AC. Chifukwa chake, AC idapeza chiyambi chakukula kwa msika ndikuyamba kukhala pamsika womwe udakhala ndi DC. Pambuyo pa "nkhondo" iyi, DC ndi AC adapikisana pa siteshoni yamagetsi ya Adams hydropower ku Niagara Falls.
Mu 1890, dziko la United States linamanga malo opangira magetsi ku Niagara Falls Adams. Pofuna kuyesa njira zosiyanasiyana za AC ndi DC, bungwe la Niagara Power Commission lakhazikitsidwa. Westinghouse ndi Ge adachita nawo mpikisano. Pomaliza, ndi mbiri yake kukwera pambuyo chigonjetso cha AC / DC nkhondo ndi luso la gulu la asayansi kwambiri monga Tesla, komanso mayeso bwino AC kufala mu Great Barrington mu 1886 ndi ntchito bwino alternator mu larffen magetsi chomera ku Germany, Westinghouse potsiriza anapambana kupanga mgwirizano wa 10 5000P hydrogenerator AC AC. Mu 1894, jenereta woyamba wa 5000P wamagetsi a Niagara Falls Adams adabadwa ku Westinghouse. Mu 1895, gawo loyamba lidayamba kugwira ntchito. M'dzinja la 1896, magawo awiri osinthira magetsi opangidwa ndi jenereta adasinthidwa kukhala magawo atatu kudzera ku Scot thiransifoma, kenako amapatsira ku Baffalo 40km kutali ndi njira yopatsira magawo atatu.
Jenereta ya hydro ya Adams power station ku Niagara Falls idapangidwa ndi BG lamme (1884-1924), injiniya wamkulu wa Westinghouse, malinga ndi patent ya Tesla, ndi mlongo wake B. lamme nawonso adagwira nawo ntchitoyi. Chipangizocho chimayendetsedwa ndi turbine ya fournellon (othamanga awiri, opanda chubu), ndipo jenereta ndi jenereta yofanana ndi magawo awiri, 5000hp, 2000V, 25Hz, 250r / mln. Jenereta ili ndi makhalidwe awa;
(1) Kulemera kwakukulu ndi kukula kwautali. Izi zisanachitike, gawo limodzi la mphamvu ya hydro jenereta silinapitirire 1000 HPA. Titha kunena kuti 5000bp hydro jenereta wa Adar hydropower station ku Niagara Falls sanali jenereta yayikulu kwambiri ya hydro yokhala ndi mphamvu imodzi padziko lonse lapansi panthawiyo, komanso gawo loyamba lofunikira pakupanga jenereta ya hydro kuchokera ku zazing'ono mpaka zazikulu.
(2) Woyendetsa zida watsekedwa ndi mica kwa nthawi yoyamba.
(3) Mapangidwe ena amakono a ma generator a hydro amasiku ano amatengedwa, monga maambulera opindika otsekedwa. Ma seti 8 oyambilira ndi a kapangidwe kamene mitengo ya maginito imayima kunja (mtundu wa pivot), ndipo magawo awiri omaliza amasinthidwa kukhala momwe maginito amazungulira mkati mwake (mtundu wamunda).
(4) Kusangalatsa kwapadera. Yoyamba imagwiritsa ntchito mphamvu ya DC yopangidwa ndi jenereta yapafupi ya DC steam turbine kuti isangalatse. Pambuyo pazaka ziwiri kapena zitatu, mayunitsi onse adzagwiritsa ntchito majenereta ang'onoang'ono a DC ngati ma exciters.
(5) Mafupipafupi a 25Hz adalandiridwa. Panthawiyo, mlingo wa Ying ku United States unali wosiyana kwambiri, kuchokera pa 16.67hz kufika pa 1000fhz. Pambuyo pa kusanthula ndi kunyengerera, 25Hz idalandiridwa. Kuchuluka kumeneku kwakhala kofala kwambiri m'madera ena a United States kwa nthawi yaitali.
(6) M'mbuyomu, magetsi opangidwa ndi zida zopangira magetsi ankagwiritsidwa ntchito kwambiri powunikira, pomwe magetsi opangidwa ndi Niagara Falls Adams magetsi ankagwiritsidwa ntchito makamaka popangira mphamvu zamafakitale.
(7) Kutumiza kwautali kwamalonda kwa magawo atatu a AC kwachitika kwa nthawi yoyamba, yomwe yakhala ndi gawo lachitsanzo pakufalitsa ndi kugwiritsa ntchito kwambiri magawo atatu a AC. pambuyo pa zaka 10 zogwira ntchito, mayunitsi 10 5000bp a jenereta amadzi a turbine yamadzi a Adams hydropower station asinthidwa ndikusinthidwa. Magawo onse a 10 asinthidwa ndi mayunitsi atsopano a 1000HP ndi 1200V, ndipo gawo lina la 5000P lakhazikitsidwa, kotero kuti mphamvu zonse zomwe zimayikidwa pa siteshoni yamagetsi zikufika ku 105000hp.
Nkhondo yachindunji ya AC ya jenereta ya hydro idapambana ndi AC. Kuyambira pamenepo, mphamvu ya DC yawonongeka kwambiri, ndipo AC yayamba kuyimba ndi kuukira pamsika, zomwe zakhazikitsanso kamvekedwe ka chitukuko cha ma generator a hydro mtsogolomo. Komabe, ndiyenera kutchula kuti chochititsa chidwi pagawo loyambirira ndikuti majenereta a DC hydro jenereta amagwiritsidwa ntchito kwambiri. Pa nthawi imeneyo, panali mitundu iwiri ya DC hydro motors. Imodzi ndi jenereta yotsika mphamvu. Majenereta awiri amalumikizidwa mndandanda ndikuyendetsedwa ndi turbine imodzi. Yachiwiri ndi jenereta yothamanga kwambiri, yomwe ndi pivot iwiri ndi jenereta iwiri yogawana mtengo umodzi. Mfundo zake zidzafotokozedwa m’nkhani yotsatira.
Nthawi yotumiza: Sep-13-2021
