Isixazululo sephutha seSistimu Ethokozisayo Yesethi Yejeneretha Yedizili

Uhlelo lwe-excitation lunikeza insimu yamagnetic yamanje ku-rotor winding ye-generator diesel.Umsebenzi wayo oyinhloko ukugcina i-voltage ye-generator isezingeni elinikeziwe, ukusabalalisa ngokunengqondo amandla asebenzayo nokuthuthukisa ukuzinza kokusebenza kwesistimu yamandla.Kungabonakala ukuthi ukugcinwa kanye nokulungisa amaphutha ohlelweni lwe-excitation kubaluleke kakhulu ukuqinisekisa ukusebenza okuphephile kokukhiqizwa kukagesi.

Kodwa-ke, siyazi futhi ukuthi noma yiziphi izisetshenziswa zingase zibe namaphutha ekusebenzeni.Indlela yokuxilonga ngokushesha nokuqeda amaphutha kuwumthwalo wemfanelo obalulekile nomsebenzi wabasebenzi bezokunakekela, futhi uhlelo lokuzijabulisa alufani.Ngakho-ke, lesi sihloko sidingida amaphutha ajwayelekile kanye nezinyathelo zokulwa nazo generator diesel uhlelo lokuvusa amadlingozi.

1. Amaphutha ajwayelekile kanye nezinyathelo zokulwa zohlelo lokuvusa amadlingozi kadizili

1.1 ukwehluleka kwe-excitation

Lapho i-generator ingakwazi ukumisa i-voltage yokuqala ngemva kokuba uhlelo lwe-excitation lukhipha umyalo wokuvuselela, okubizwa ngokuthi ukwehluleka kwe-excitation.Ngoba kunamamodeli amaningi wesistimu ye-excitation ye-diesel generator, futhi kukhona umehluko ekusethweni kwepharamitha nokubonisa isignali.Isibonelo, i-EXC9000 excitation. uhlelo, lapho i-voltage ye-generator terminal isengaphansi kuka-10% we-voltage elinganiselwe ye-generator phakathi nama-10s, isikrini sokubonisa isilawuli sizobika isignali "yokuhluleka kwe-excitation".

Kunezizathu eziningi zokuhluleka kwe-build-up excitation, futhi ezivamile yilezi:

(1) Kukhona okushiywe ngesikhathi sokuhlola ukuqalisa, njengokushintshwa kwe-excitation, ukushintshwa kwe-de excitation, ukushintshwa kwesihlalo sokuphepha se-synchronous transformer, njll. akuvaliwe.

(2) I-excitation circuit inephutha, njengemigqa exekethile noma izingxenye ezilimele.

(3) Ukwehluleka komlawuli.

(4) umqhubi akajwayelene nokusebenza, futhi isikhathi sokucindezela inkinobho yokuvusa sifushane kakhulu, singaphansi kwama-5.

Isixazululo:

(1) Hlola isimo sokuqalisa ngokuqinile ngokuhambisana nezinqubo, buyekeza zonke izixhumanisi ukuze ugweme ukushiywa.

(2) Bukisisa ngokucophelela.Uma usola ukuthi i-excitation circuit inephutha, yahlulela ngokubheka ukwenziwa kusebenze kwe-excitation contactor nomsindo wokudonsa.Uma kungekho msindo, kungase kube ukwehluleka kwesifunda;uma kuwukwehluleka komlawuli, ungabheka ukukhanya kwenkomba yokushintsha kwebhodi lomlawuli.Ukuthi isibani senkomba yokokufaka sihlale sivuliwe, futhi uma isibani sivaliwe, hlola izintambo kanye nokuthi umyalo wekhompuyutha yomsingathi ukhishiwe.

(3) Ngemva kokuba impahla isilungisiwe, hlola ukuthi imodi yokuthakasela yesixhumi esibonakalayo somshini womuntu ifanelekile, bese uqala kabusha umshini ngokulungisa imodi yokuvusa noma ukushintsha isiteshi.

(4) Ukwehluleka okuningi ngemva kokulungiswa nokulungiswa kusala emisebenzini yangaphambilini.Uma ukhumbula ngesineke lokho okuthuthile, ungathola ezinye izimpawu, njengokuthi i-rotor kanye nekhebula lokuphuma kwe-excitation lixhumeke ngokuhlehla.

2.2 Injabulo engazinzile

Ngesikhathi sokusebenza kwejeneretha, ukushintshashintsha kwe-excitation kukhulu kakhulu.Isibonelo, idatha yokusebenza yesistimu yokuvusa iyanda, kodwa ngezinye izikhathi ijwayelekile futhi ayijwayelekile, futhi ukulungiswa kokuhlanganisa nokukhipha kusengenziwa.

Izizathu ezingaba yizi:

(1) Okukhiphayo kwe-phase-shift pulse control voltage akujwayelekile.

(2) Izinga lokushisa lemvelo liyashintsha kanye nezingxenye zithinteka ukudlidliza, i-oxidation kanye nokungasebenzi kahle.

Isixazululo:

Ngesizathu sokuqala, qala uhlole ukuthi amandla ashukumisayo ajwayelekile yini, bese uhlola ukuthi inani elinikeziwe kanye nenani elilinganisiwe (i-voltage yegenerator noma i-excitation current) okucutshungulwe yiyunithi yokujwayela kujwayelekile.

Ngesizathu sesibili, sebenzisa i-oscilloscope ukuze ubone ukuthi i-waveform elungisiwe iphelele, bese usebenzisa i-multimeter ukuhlola ukuthi ukusebenza kwe-thyristor kuyinto evamile.Lolu hlobo lokwehluleka luzokwenzeka lapho isimo sokushisela izintambo nezici zengxenye zishintsha, futhi ukugcinwa nokulungisa iphutha kufanele kuqiniswe futhi kufakwe esikhundleni ngesikhathi.Izingxenye eziyinkinga zinganciphisa amathuba okuthi ukwehluleka okunjalo.

2.3 Ukukhipha isasasa ngendlela engavamile

Ngemuva kokuthi isethi yejeneretha yedizili inqanyuliwe kugridi yamandla, idivayisi yokususa isasasa kufanele ibambezelele insalela uzibuthe kudivayisi evusa amadlingozi ngokushesha okukhulu.Izindlela ze-Demagnetization zifaka i-inverter demagnetization kanye ne-resistance demagnetization.Izizathu zokwehluleka kwe-inverter demagnetization zifaka izizathu zesekethe, ukwehluleka kwesigxobo sokulawula i-SCR, ukunikezwa kwamandla okungavamile kwe-AC, kanye ne-angle yokuqalisa encane ehamba phambili yesigaba sokuguqula.Ngakho-ke, isixazululo ukuqinisa ukugcinwa kwansuku zonke, ukuhlanza njalo uthuli emishinini, bese usebenzisa unamathisele we-conductive ku-de-excitation fracture, igridi yokucisha i-arc nezinye izingxenye ukuvimbela umshini ukuthi ungangeni.

Ukugcina i uhlelo lokuvusa amadlingozi wejeneretha ye-diesel esesimweni esihle, ngaphezu kokuqinisa ukugcinwa nokuphathwa, ukususwa kothuli okuvamile, ukuhlolwa nokuhlolwa, ukunakwa kufanele kukhokhwe ekuhlaziyweni nasekufingqweni kwamaphutha avamile.Njengezinhlelo zezimo eziphuthumayo, ukususa izinqubo nezindlela zokuxazulula izinkinga kunganciphisa kakhulu isikhathi sokuxazulula izinkinga futhi kubeke isisekelo esiqinile sokuqinisekisa ukukhiqizwa okuphephile kwe-genset kadizili kanye nokwenza ngcono ukusebenza kahle kokuphehla ugesi.