Yintoni ebangela ukuguquguquka kwamandla asebenzayo kwiSeti yeGenereyitha

Ukuguquguquka kwamandla okusebenzayo kwisethi ye-generator kunempembelelo enkulu ekusebenzeni kozinzo lwesethi ye-generator.Umda wozinzo wokuguquguquka kwamandla asebenzayo wejenereyitha kwisigaba esisemva komsebenzi mkhulu kakhulu.Xa ijenereyitha ikwisigaba esikhokelayo sokusebenza, ngakumbi kwisigaba esinzulu sokuhamba phambili, umda wokuzinza wesethi yejeneretha uya kuncitshiswa kakhulu, nto leyo ekulula ukwenza ukuba iseti yejenereyitha ilahlekelwe zizinzo kunye nohambo, olusongela kakhulu ukusebenza ngokukhuselekileyo kwejeneretha. iyunithi kunye negridi yamandla.

Eli nqaku lihlalutya izizathu zokuguquguquka kwamandla kwisethi ye-generator, kwaye ithatha amanyathelo okuthintela ekujoliswe kuyo ukuqinisekisa ukusebenza okuzinzileyo kwesethi ye-generator.

1. Impembelelo yamandla asebenzayo kumandla asebenzayo

Uhlalutyo malunga nobudlelwane phakathi kwamandla asebenzayo kunye amandla asebenzayo ejenereyitha

Isixhobo sokuvuselela i-generator sihlalutywa ngaphandle kohlengahlengiso oluzenzekelayo kuyo yonke inkqubo ye-generator prime mover power, kwaye umqhubi ulungelelanisa kuphela amandla asebenzayo e-generator, alingana nokugcina i-generator enokuthi i-E kunye nokuphendula rhoqo.Amandla asebenzayo kunye ne-angle yamandla ejeneretha i-sinusoidal, kwaye amandla asebenzayo kunye ne-angle yamandla yi-cosine.

Kwifomula, i-E0, i-U inamandla e-generator kunye ne-terminal voltage;X1 kukusabela okuhambelanayo kwejenereyitha;δ yiElectromagnetic power angle yejenereyitha.

Ingabonwa ukuba amandla asebenzayo ayanda, kokukhona amandla asebenzayo ehla.Xa i-angle ethile yamandla ifikelelwe, i-generator iyatshintsha ukusuka kwisigaba sasemva kwexesha ukuya kwisigaba sokuqhubela phambili, ukufunxa amandla asebenzayo e-inductive kwinkqubo.I-angle yamandla iyanda ngokunyuka kobunzulu besigaba, kwaye ngokunzulu isigaba esikhokelayo, sincinci i-excitation current.Ke ngoko, ukuze uthintele ukuqhubela phambili kwesigaba sejenereyitha, kuyafuneka ukonyusa umsinga wokuvuselela ngelixa unyusa amandla asebenzayo ejeneretha, ukuze kuncitshiswe ubunzulu bangaphambili kunye nokuqinisekisa i-voltage engapheliyo.

2. Impembelelo yolawulo lwamaza eyunithi, ukulawula uxinzelelo lwenqanaba kunye nommiselo ophambili wokuphindaphinda kwimveliso yamandla esebenzayo

I-1) Uxinzelelo lwenqanaba elilawulayo leyunithi likwimeko efanayo nokuguquguquka kwamandla asebenzayo.Kumjikelo wexesha, uxinzelelo lwenqanaba lokulawula leyunithi yimizuzu engama-20 phambi kokuguquguquka kwamandla asebenzayo.

2) I-frequency yeyunithi ikwinqanaba lokuguquguquka kwamandla asebenzayo, kwaye ukuguquguquka kweyunithi yi-0.1s phambi kokuguquguquka kwamandla asebenzayo kumjikelo wexesha.

3) Ukuguquguquka kwamandla okusebenzayo kweyunithi kubangelwa isenzo sokuqala solawulo lwamaza.Ngokomgaqo, ummiselo ophambili wokuphindaphinda usebenza ngesantya sejeneretha.

Inokuhlalutywa ukuba utshintsho lokuqalisa isantya sejenereyitha lubangela isenzo sokuqala solawulo lwamaza.Isiphumo somyalelo wesenzo solawulo oluphindaphindiweyo lubonakaliswa kutshintsho lwenqanaba lolawulo lweyunithi yoxinzelelo, kwaye emva koko lubonakaliswe kutshintsho lweyunithi yobuninzi kunye namandla asebenzayo.

3.Impembelelo yefrikhwensi yegridi kumandla asebenzayo

Inokubonwa kwidayagram ye-waveform ukuba i-amplitude ye-frequency fluctuation yegridi yamandla incinci kakhulu kuneseti yejenereyitha, kwaye i-periodicity ihlwempuzekile kwaye iphantse ingaqhelekanga.Ke ngoko, impembelelo yefrikhwensi yegridi yokuguquguquka kwamandla asebenzayo inokupheliswa.

Ngolu hlalutyo lungentla, impembelelo yamandla asebenzayo, inkqubo yokulawula uchulumanco, i-frequency network kunye nezinye izinto ekuguquguqukeni kwamandla asebenzayo zinokushenxiswa.Kugqitywe ekubeni ukuguquguquka kwamandla asebenzayo kwe iseti yejenereyitha kwiplanti kungenxa yokwanda kwesantya sokusetha ijenereyitha, umgaqo ophambili osebenza ngamaza, kwangaxeshanye, kuba ukuvulwa kwevalve elawula isantya esiphezulu somoya weinjini yomphunga kukwindawo yokuguquguquka, igophe lophawu kwi-inflection. inqaku alizinzanga kakhulu.Xa i-primary frequency regulation isebenza, umyalelo wokuvula ofunyenwe yivalve elawulayo kule ndawo ikwimeko yokuthumela.

4.Uthintelo kunye namanyathelo okuthintela

Isethi yejeneretha ifumaneka ekupheleni kwegridi yamandla, kunye nemigca emide ephindwe kabini yesiphaluka ephumayo kunye nendawo ebalulekileyo yokuxhasa amandla.Ngokujonga ukucuthwa kwangoku kokusetyenziswa kwamandla kwimizi-mveliso, ukuphuphuma kwamandla asebenzayo kwigridi yamandla kunye nombane wenkqubo ephezulu, ukuze kuqinisekiswe umgangatho wombane, igridi yamandla iya kufuna ukuba iyunithi isebenze kwisigaba, kwaye ukusebenza komatshini omnye kunomda. ukukwazi ukufunxa amandla asebenzayo kunye nokulungelelanisa amandla ombane wenkqubo.Ngokudityaniswa nokuguquguquka kwamandla okusebenzayo kweyunithi, le milinganiselo yokuthintela ilandelayo yenziwe:

(1) Imo yokusebenza yangoku inempembelelo enkulu kuzinzo lweyunithi.Kwinkqubo yegridi yamandla amakhulu, ukusebenza kommiselo wesethi yejenereyitha kulinganiselwe.Ke ngoko, kuyafuneka ukuba amandla enqanaba elikhokelayo leyunithi kufuneka afaneleke xa i-voltage yenkqubo iphezulu kakhulu, kwaye ukusebenza kwenqanaba eliphambili kufuneka kuphetshwe kangangoko kunokwenzeka.

(2) Ngenxa yomgaqo ongekho mgca wevalve yokulawula isantya, kukho indawo yokuguquguquka malunga ne-70% yendawo yevalve ebanzi.Kweli nqanaba, ukuba iiparameters ezahlukeneyo zenkqubo yolawulo ziyatshintsha (kubandakanywa isenzo sokumodareyitha okuphambili), ukungafani kokulawula kunokubangelwa kweli nqanaba, oku kunokukhokelela kutshintsho oluphawulekayo ekuvuleni kwevalve yokulawula kwaye kukhokelela ekuguquguqukeni amandla asebenzayo.Ngenxa yale meko, umlinganiselo wangoku kukuphepha indawo yokuguquguquka kwevalve elawulayo.