Yini Ebangela I-Generator Ngaphansi Kwe-Voltage

Ijeneretha iyisisetshenziswa esiwumshini esiguqula ezinye izinhlobo zamandla zibe amandla kagesi.Ishayelwa i-turbine yamanzi, i-steam turbine, injini ye-diesel noma enye imishini yamandla, futhi iguqula amandla akhiqizwa ukugeleza kwamanzi, ukugeleza komoya, ukushiswa kukaphethiloli noma i-nuclear fission ibe amandla emishini bese iwadlulisela ku-generator.Iguqulelwe kugesi ngejeneretha.Amajeneretha asetshenziswa kakhulu ekukhiqizweni kwezimboni nezolimo, ukuvikela izwe, isayensi nobuchwepheshe kanye nempilo yansuku zonke.

Kunezinhlobo eziningi ze amajeneretha , kodwa izimiso zabo zokusebenza zisekelwe emthethweni we-electromagnetic induction kanye nomthetho wamandla kazibuthe kagesi.Ngakho-ke, umgomo ojwayelekile wokwakhiwa kwayo uthi: sebenzisa izinto ezisetshenziswa kazibuthe ezifanele kanye ne-conductive ukwakha amasekhethi kazibuthe namasekhethi aqhuba ukungeniswa kwe-electromagnetic komunye nomunye ukuze kukhiqizwe amandla kazibuthe kagesi futhi kuzuzwe inhloso yokuguqulwa kwamandla.

Yini ebangela i-generator ngaphansi kwe-voltage?

(1) Ijubane le-prime mover liphansi kakhulu.

(2) Ukumelana nomjikelezo wokuvusa kukhulu kakhulu

(3) Ibhulashi le-exciter alikho endaweni emaphakathi, noma ingcindezi yasentwasahlobo incane kakhulu.

(4) Amanye ama-diode okulungisa aphukile.

(5) Kukhona isekethe emfishane noma iphutha eliphansi ku-stator mawinding noma ama-excitation winding.

(6) Indawo yokuthintana yebhulashi incane kakhulu, ingcindezi ayanele, futhi ukuthintana kwayo kubi.Uma kubangelwa ubuso be-commutator, ungakwazi ukupholisa ubuso be-commutator ngendwangu ye-emery ngesivinini esiphansi, noma ulungise ukucindezela kwentwasahlobo.

Ngenxa yezizathu ezingenhla, indlela yokwandisa i-voltage ye-generator?

1. Lungisa isivinini sesiguquli esiyinhloko sibe yinani elilinganiselwe.

2. Yehlisa ukuphikiswa kwe-rheostat yensimu kazibuthe ukuze ukwandise amandla akhona.Kumajeneretha avusa amadlingozi we-semiconductor, hlola ukuthi ingabe amajoyinti asongayo engeziwe anqanyuliwe noma axhumeke ngokungalungile.

3. Lungisa ibhulashi endaweni efanele, shintsha ibhulashi, ulungise ukucindezela kwentwasahlobo.

4. Hlola bese ushintsha i-diode ephukile.

5. Hlola iphutha bese ulisusa.

Ezinye izindlela zokwandisa i-voltage ye-generator:

Khulisa isisindo sokuvusa sejeneretha;

ukwandisa isivinini se-generator;

Yehlisa ukumelana kwesifunda ku-generator;

Ukuncipha komthwalo noma inani lenjabulo liyakhula njengoba umthwalo ukhula.

Ungayigcina kanjani i-voltage ye-generator terminal ingashintshiwe

Lapho umthamo wamanje we-generator ushintsha, ngokusho kwejika lesici sangaphandle, i-voltage yokugcina ye-generator izoshintsha nayo.

Ukuze ugcine i-voltage ye-terminal ye-generator ingashintshi, i-excitation current ye-generator kufanele ilungiswe ngokufanele.

Ngaphansi kwesimo sokugcina isivinini, isici samandla okulayisha kanye ne-voltage yetheminali ingashintshiwe, ubudlelwano phakathi kwe-IL yamanje ye-excitation kanye nomthwalo ls bubizwa ngokuthi isici sokulawula se-generator.

Ngemithwalo ye-resistant kanye ne-inductive, njengoba umthamo wamanje ukhula, i-voltage yokugcina ye-generator izokwehla kancane kancane.Ukuze ugcine i-voltage yetheminali ingaguquki, i-excitation current kufanele ikhuliswe ngokufanele ukuze kunxeshezelwe ukususwa kazibuthe nokusabela kokuvuza kokusabela kwe-armature.ukwehla kwengcindezi.

Ngemithwalo ye-capacitive, njengoba i-voltage yokugcina ye-generator izokwenyuka ngokukhuphuka kwamandla omthwalo wamanje, i-excitation current kufanele yehliswe ukuze kuncishiswe umphumela wokusabisa wokusabela kwe-armature kanye nomthelela okhulayo wokusabela kokuvuza, ukuze kugcinwe i- i-terminal voltage.njalo.

Izinkinga okufanele zinakwe lapho kuhambisana nejeneretha engalayishi negridi yamandla: ngesikhathi sokushintsha nokuvala, i-generator akufanele ibe ne-inrush current eyingozi, futhi i-shaft ejikelezayo akufanele ibe ngaphansi kokushaqeka okungazelelwe.

Ngemuva kokuvala, i-rotor kufanele ikwazi ukudonselwa ekuvumelaniseni ngokushesha (okungukuthi, isivinini se-rotor silingana nesivinini esilinganiselwe).Ngalesi sizathu, ijeneretha yokuvumelanisa kufanele ihlangabezane nemibandela elandelayo:

1. Inani elisebenzayo le- i-generator voltage kufanele ilingane nenani elisebenzayo legridi kagesi.

2. Isigaba se-voltage ye-generator kanye nesigaba se-voltage yegridi kufanele kufane.

3. Imvamisa ye-generator ilingana nobuningi begridi.

4. Ukulandelana kwesigaba se-voltage ye-generator kuhambisana nokulandelana kwesigaba se-voltage yegridi.

5. Akuvunyelwe ngokuphelele ukuthumela ugesi emuva kugridi yamandla.