Generator excitation qauv thiab ua hauj lwm txoj ntsiab cai
Generator excitation
Generator excitation system yog ib lub sij hawm dav rau lub hwj huam thiab nws cov cuab yeej khoom siv hluav taws xob uas muab lub sij hawm tam sim no lub suab paj nruag. Nws feem ntau yog ob qho tseem ceeb: qhov kev tawm ntawm lub hwj chim ua kom muaj zog thiab qhov kev zov me nyuam tswj hwm.
Lub tshuab hluav taws xob excitation system muaj xws li lub DC exciter, lub tshuab tsis-cav, AC exciter, thiab cov zoo li. Nyob rau hauv kaum xyoo dhau los, vim tshwm sim thiab siv cov tshiab technologies, cov txheej txheem tshiab thiab cov cuab yeej tshiab, hom kev tawm tsam ntawm generators tau tsim kho thiab tsim kho. Nyob rau hauv lub nam ntawm automatic hloov ntawm qhov excitation ntaus ntawv, ntau yam tshiab hom ntawm kev kho li tau tsim tsis tu ncua tsim thiab nce.
Qhov system muaj pes tsawg leeg
Lub hwj chim ua kom muaj zog txaus siv rau qhov kev sib tw tam sim no mus rau lub tshuab synchronous generator; thiab qhov kev tswj hwm tus tswj kev tswj cov khoom tso tawm ntawm lub zog ntawm lub zog ntawm kev tawm tswv yim los ntawm cov teeb liab tawm tswv yim thiab kev hloov cov kev ntsuas. Qhov kev tso cai tsis zoo los ntawm kev cia siab yuav ua rau lub luag haujlwm tseem ceeb hauv kev txhim kho kom ruaj khov ntawm kev ua haujlwm ntawm lub zog. Hauv particular, txoj kev tsim cov tshuab fais fab tam sim no tau coj los ua kom muaj kev sib txuas ntawm txoj kev tswj hwm ntawm lub unit, thiab tseem tau coj mus rau qhov kev nthuav dav ntawm kev siv tshuab excitation. Cov excitation system ntawm lub synchronous generator yog tsuas yog ua los ntawm ob qho: lub zog chav tsev thiab tus tswj (ntaus ntawv). raws li hauv daim duab qhia:
Lub zog excitation zog yog ib feem ntawm qhov excitation fais fab uas muab khoom rau DC excitation tam sim no rau rotor winding ntawm lub synchronous generator, thiab excitation regulator tswj cov zis ntawm qhov excitation zog unit raws li ib qho input teeb liab uas yuav tsum tau los ntawm kev tswj thiab muab cov kev hloov kho. Tag nrho cov txheej txheem ntawm cov kev tswj hwm excitation, qhov excitation zog unit thiab cov generator nws tus kheej yog hu ua excitation system tswj qhov system. Lub zog excitation yog ib qho tseem ceeb ntawm lub tshuab hluav taws xob, uas muaj kev cuam tshuam rau kev ruaj ntseg thiab ruaj khov ntawm lub zog thiab lub tshuab hluav taws xob nws tus kheej.
lub luag haujlwm tseem ceeb
Cov haujlwm tseem ceeb ntawm kev cia siab yog:
1) Kho qhov siab tam sim no raws li qhov kev hloov ntawm cov khoom siv hluav taws xob kom tswj tau qhov dav hlau voltage raws li tus nqi muaj nqis;
2) Tswj cov kev khiav hauj lwm ntawm cov hluav taws xob sib faib tawm ntawm generators;
3) Txhim kho qhov kev ruaj ntseg zoo li qub ntawm kev khiav haujlwm ntawm cov tshuab hluav taws xob;
4) Txhim kho txoj haujlwm ruaj khov ntawm kev ua haujlwm ntawm lub tshuab hluav taws xob;
5) Thaum muaj qhov txhaum tshwm sim hauv lub tshuab hluav taws xob, kev ua kom muaj qhov txwv kom txo tau cov teeb meem ntawm qhov poob;
6) Tsuas pub tshaj tawm thiab txwv tsis pub qis tshaj plaws rau cov generator raws li kev ua haujlwm.
