Inkqubo yoLawulo lokuSebenza ngokunxuseneyo
Ingcaciso yeMveliso
Okokuqala, zithini iimeko zokusebenza ngokuhambelana kweeseti zejeneretha?
Yonke inkqubo yokubeka ijenereyitha isebenze ngokunxuseneyo ibizwa ngokuba yi-parallel operation. Iseti yejenereyitha yokuqala iya kuqhuba, i-voltage ithunyelwa ebhasini, kwaye enye iseti yejeneretha emva kokuqala, kunye neseti yangaphambili yejeneretha, kufuneka ibekumzuzu wokuvala, iseti yejenereyitha ayifanele ibonakale ngoku impembelelo eyingozi, i-shaft ayikho. ixhomekeke kwimpembelelo yequbuliso. Emva kokuvala, i-rotor kufuneka itsalwe ngokukhawuleza kwi-sync. (oko kukuthi, isantya se-rotor silingana nesantya esilinganisiweyo) Ngoko ke, isethi ye-generator kufuneka ihlangabezane nale miqathango ilandelayo:
1. Ixabiso elisebenzayo kunye ne-waveform ye-voltage yesethi ye-generator kufuneka ifane.
2. Isigaba sombane seejeneretha ezimbini siyafana.
3. Ubuninzi beesethi ezimbini zejeneretha ziyafana.
4. Ulandelelwano lwesigaba seesethi ezimbini zejeneretha ziyahambelana.
Okwesibini, yeyiphi indlela ye-quasi-synchronous juxtaposition yeesethi zejeneretha? Indlela yokwenza ii-juxtapositions ngaxeshanye?
I-Quasi-synchronous lixesha elichanekileyo. Ngendlela ye-quasi-synchronous yokusebenza ngokuhambelanayo, i-voltage yokusetha ijenereyitha kufuneka ifane, i-frequency iyafana kwaye isigaba siyahambelana, esinokujongwa ngee-voltmeters ezimbini, ii-frequency metres ezimbini kunye nezalathi ezihambelanayo nezingahambelaniyo ezifakwe kwi. idiski ehambelanayo, kunye namanyathelo okusebenza ahambelanayo ami ngolu hlobo lulandelayo:
Ukutshintshwa komthwalo wesethi enye ye-generator ivaliwe, kwaye i-voltage ithunyelwa kwibha yebhasi, ngelixa enye iyunithi ikwimeko yokulinda.
Vala isiqalo sexesha elifanayo, lungisa isantya seseti yejeneretha yokulinda, ukuze ilingane okanye isondele kwisantya esihambelanayo (umahluko wokuphindaphinda kunye nenye iyunithi ngaphakathi kwesiqingatha somjikelo), lungisa umbane wesethi yejeneretha yokulinda, ukwenzela ukuba isondele kwi-voltage yesinye isethi ye-generator, xa i-frequency kunye ne-voltage ifana, isantya sokujikeleza kwetafile ye-synchronous iyancipha kwaye iyancipha, kwaye ukukhanya kwesalathisi kukwakhanya kwaye kumnyama ngexesha elifanayo; Xa inqanaba leyunithi eliza kudityaniswa lifana nelinye iyunithi, isalathisi semitha esihambelanayo sibonisa indawo ephezulu yesikwere esiphakathi, kwaye isibane se-synchronous simnyama. Xa umahluko wesigaba phakathi kweyunithi edityanisiweyo kunye nenye iyunithi inkulu, imitha ye-synchronous ikhomba kwindawo ephakathi apha ngezantsi, kwaye isibane se-synchronous sikhona ngeli xesha. Xa isalathisi semitha esihambelanayo sijikeleza ngasekunene, sibonisa ukuba ukuphindaphinda kwejenereyitha ehambelanayo iphezulu kuneyenye iyunithi. Isantya seseti yejenereyitha yokulinda kufuneka sincitshiswe, kwaye isantya seseti yejenereyitha yokulinda kufuneka sandiswe xa isalathisi sewotshi sijikeleziswa ngasekunene. Xa isalathisi sewashi sijikeleza ngokukhawuleza kwindlela ye-clockwise kwaye isalathisi sisondela kwinqanaba elifanayo, i-breaker circuit yeyunithi edibeneyo ivalwe ngokukhawuleza, ukwenzela ukuba iiseti ezimbini zejeneretha zihambelana. Icala-by-icala elikhutshiweyo lokutshintshela i-chronograph kunye nee-chronoswitches ezinxulumene nazo.
Okwesithathu, yintoni ekufuneka ithathelwe ingqalelo xa kusenziwa i-quasi-synchronous juxtaposition yesethi yejenereyitha?
I-Quasi-synchronous parallel yi-manual operation, nokuba umsebenzi ulungile kwaye amava omqhubi unobudlelwane obukhulu, ukwenzela ukuthintela ukuhambelana kwe-synchronous ezahlukeneyo, ezi meko zintathu zilandelayo azivumelekanga ukuvala.
1. Xa isalathisi setafile ye-synchronous ibonakala i-jumping phenomenon, ayivumelekanga ukuvala, kuba kunokubakho i-cassette phenomenon ngaphakathi kwetafile ye-synchronous, engabonakali iimeko ezichanekileyo ze-juxtaposition.
2. Xa itheyibhile ye-synchronous ijikeleza ngokukhawuleza, ibonisa ukuba umahluko phakathi kwesethi ye-generator kunye nenye isethi ye-generator inkulu kakhulu, kuba ixesha lokuvala i-circuit breaker kunzima ukuyiqonda, ngokuphindaphindiweyo i-circuit breaker ayivalwanga. ngexesha elifanayo, ngoko ke akuvumelekanga ukuvala ngeli xesha.
3. Ukuba isalathisi sewotshi siyeka ngexesha elifanayo, akuvumelekanga ukuvala. Oku kungenxa yokuba ukuba i-frequency yesinye isethi ye-generator itshintsha ngokukhawuleza ngexesha lenkqubo yokuvala, kunokwenzeka ukwenza i-breaker circuit ivale nje kwindawo engavumelaniyo.
Okwesine, indlela yokulungelelanisa isenzeko samandla esingasemva seeyunithi ezihambelanayo?
Xa iiseti ezimbini zejeneretha zingasebenzi, kuya kubakho umahluko ophindaphindiweyo kunye nomahluko wombane phakathi kweeseti ezimbini. Kwaye kwisixhobo sokubeka iliso seeyunithi ezimbini (i-ammeter, imitha yamandla, imitha yokulinganisa amandla), eyona meko yamandla eguquguqukayo ibonakalisiwe, enye ingamandla aguqukileyo abangelwa sisantya esingahambelaniyo (i-frequency), enye ngamandla aguqukileyo abangelwa kukungalingani. i-voltage, ehlengahlengiswa ngolu hlobo lulandelayo:
