Fault Solution for Excitation System ya Dizilo Generator Set

Dongosolo lachisangalalo limapereka maginito apano pakuyenda kozungulira kwa jenereta ya dizilo.Ntchito yake yayikulu ndikusunga voteji ya jenereta pamlingo womwe wapatsidwa, kugawira mphamvu zotakataka ndikuwongolera magwiridwe antchito amagetsi.Zitha kuwoneka kuti kusunga ndi kusokoneza dongosolo lachisangalalo ndilofunika kwambiri kuti zitsimikizire kuti ntchito yotetezeka ya kupanga magetsi.

Komabe, tikudziwanso kuti zida zilizonse zitha kukhala ndi zolakwika pakugwira ntchito.Momwe mungadziwire mwachangu ndikuchotsa zolakwika ndi udindo wofunikira komanso ntchito ya ogwira ntchito yosamalira, ndipo dongosolo losangalatsa ndilofanana.Chifukwa chake, nkhaniyi ikufotokoza zolakwa zomwe wamba ndi zotsutsana nazo jenereta ya dizilo dongosolo excitation.

1. Zolakwika wamba ndi njira zoyeserera za dongosolo lachisangalalo la jenereta ya dizilo

1.1 kulephera kwamphamvu

Pamene jenereta silingakhazikitse voteji koyamba pambuyo dongosolo excitation ikupereka lamulo excitation, amene amatchedwa excitation failure.Chifukwa pali zitsanzo zambiri za dizilo jenereta dongosolo excitation, ndipo pali kusiyana kwa magawo ndi kusonyeza chizindikiro.Mwachitsanzo, excitation EXC9000 system, pomwe magetsi opangira ma jenereta akadali otsika kuposa 10% yamagetsi ovotera jenereta mkati mwa 10s, chiwonetsero chazithunzi chowongolera chidzanena "chizindikiro cholephera".

Pali zifukwa zambiri za kulephera kwa kukulitsa chisangalalo, ndipo zofala ndi izi:

(1) Pali zosiyidwa pakuwunika koyambira, monga kusintha kwachisangalalo, kusintha kwachitetezo, chitetezo chachitetezo cha thiransifoma synchronous, ndi zina sizitsekedwa.

(2) Dera losangalatsa ndilolakwika, monga mizere yotayirira kapena zigawo zowonongeka.

(3) Kulephera kwa olamulira.

(4) woyendetsa sadziwa ndi ntchito, ndipo nthawi ya kukanikiza batani zosangalatsa ndi yochepa kwambiri, zosakwana 5s.

Yankho:

(1) Yang'anani mkhalidwe wa boot mosamalitsa motsatira ndondomeko, onaninso maulalo onse kuti mupewe zosiyidwa.

(2) Muziona mosamala.Ngati mukuganiza kuti dera chisangalalo ndi cholakwika, woweruza poona kutsegula kwa contactor chisangalalo ndi phokoso la kukoka-mu.Ngati palibe phokoso, pangakhale kulephera kwa dera;ngati ndikulephera kwa owongolera, mutha kuwona kuwala kosinthira kwa bolodi lowongolera.Kaya cholozera cholozera chimakhala choyaka nthawi zonse, ndipo ngati nyaliyo yazimitsidwa, yang'anani mawaya ndi ngati lamulo la kompyuta yolandila laperekedwa.

(3) Pambuyo pokonzanso zidazo, fufuzani ngati njira yosangalatsa ya mawonekedwe a makina a munthu ndi yoyenera, ndikuyambitsanso makinawo mwa kusintha njira yosangalatsa kapena kusintha njira.

(4) Zolephera zambiri pambuyo pokonza ndi kukonza zimasiyidwa kuchokera ku ntchito zam'mbuyomu.Ngati mukukumbukira moleza mtima zomwe mwasuntha, mutha kupeza zizindikiro, monga ngati rotor ndi chingwe chotulutsa chisangalalo zimalumikizidwa mobwerera.

2.2 Chisangalalo chosakhazikika

Pakugwira ntchito kwa jenereta, kusinthasintha kwachisangalalo kumakhala kwakukulu kwambiri.Mwachitsanzo, deta ya opareshoni ya dongosolo lachisangalalo imawonjezeka, koma nthawi zina imakhala yachilendo komanso yosasinthika, ndipo kusintha kwa kuwonjezera ndi kuchotsa kumatha kuchitika.

Zifukwa zomwe zingatheke ndi:

(1) Kutulutsa kwamagetsi kwa gawo-shift pulse control ndikwachilendo.

(2) Kutentha kwa chilengedwe kumasintha ndipo zigawo zake zimakhudzidwa ndi kugwedezeka, okosijeni ndi kusagwira ntchito.

Yankho:

Pachifukwa choyamba, fufuzani kaye ngati mphamvu yachisangalalo ndi yachibadwa, ndipo fufuzani ngati mtengo woperekedwa ndi mtengo woyezera (magetsi a jenereta kapena chisangalalo chamakono) chokonzedwa ndi gawo lokonzekera ndi lachilendo.

Pachifukwa chachiwiri, gwiritsani ntchito oscilloscope kuti muwone ngati mawonekedwe okonzedwanso atha, ndiyeno gwiritsani ntchito multimeter kuti muwone ngati ntchito ya thyristor ndi yachilendo.Kulephera kotereku kudzachitika pamene mawonekedwe a waya wowotcherera ndi mawonekedwe a chigawocho asintha, ndipo kukonza ndi kukonza zolakwika ziyenera kulimbikitsidwa ndikusinthidwa munthawi yake.Zigawo zamavuto zimatha kuchepetsa mwayi wa zolephera zotere.

2.3 Kuchotsa chisangalalo chosazolowereka

Pambuyo pa seti ya jenereta ya dizilo itachotsedwa pa gridi yamagetsi, chipangizo chochotsera mphamvu chiyenera kulepheretsa maginito otsalira mu chipangizo chodzidzimutsa mwamsanga.Njira za demagnetization zimaphatikizapo inverter demagnetization ndi kukana demagnetization.Zifukwa zakulephereka kwa inverter demagnetization zikuphatikiza zifukwa zozungulira, kulephera kuwongolera kwa SCR, mphamvu zamagetsi za AC, komanso ngodya yaying'ono yotsogolera ya gawo lotembenuzidwa.Choncho, yankho ndi kulimbikitsa kukonza tsiku ndi tsiku, nthawi zonse kuyeretsa fumbi mu zipangizo, ndiyeno ntchito conductive phala kwa de-chisangalalo fracture, arc kuzimitsa gululi ndi mbali zina kuteteza limagwirira ku kupanikizana.

Kusunga dongosolo excitation wa jenereta wa dizilo mumkhalidwe wabwino, kuwonjezera pa kulimbikitsa kukonza ndi kasamalidwe, kuchotsa fumbi nthawi zonse, kuyezetsa ndi kuyesa, chidwi chiyenera kuperekedwanso pakuwunika ndi chidule cha zolakwika zomwe wamba.Mofanana ndi mapulani adzidzidzi, kuchotsa njira zowathetsera mavuto ndi njira zodziwika bwino kumatha kuchepetsa nthawi yothetsa mavuto ndikuyala maziko olimba owonetsetsa kuti dizilo lipangidwa bwino komanso kuwongolera mphamvu zamagetsi.