Synchronous lub cev muaj zog - qhov zoo thiab qhov tsis zoo

Cov feem ntau lug siv xws li ib tug tshuab raws li ib tug synchronous lub cev muaj zog yog tau txais nyob rau hauv ib tug kev lag luam uas muaj hluav taws xob khiav ntawm qhov ceev. Piv txwv li, compressors nrog haib xyaw, twj actuators. Tsis tas li ntawd, ib tug synchronous lub cev muaj zog yog ib feem, thiab muaj ntau yam khoom vaj khoom tsev, xws li nws yog nyob rau hauv lub sij hawm.

Lub hauv paus ntsiab lus ntawm cov lag luam ntawm no tshuab yog heev yooj yim. Lub sis ntawm cov rotating magnetic teb ntawm lub armature ua los ntawm cov alternating tam sim no thiab sib nqus teb nyob rau inductor tug generated qhov tam sim no yog lub hauv paus ntawm lub hauv paus ntsiab lus ntawm cov lag luam ntawm xws li ib tug ntaus ntawv raws li ib tug synchronous electric tsav. Feem ntau, ib tug inductor nyob rau hauv lub rotor, thiab cov thauj tog rau nkoj - lub stator. Haib xyaw li tug siv electromagnets. Tab sis muaj yog ib hom ntawm cov uas tsis muaj hwj huam - ib tug synchronous lub cev muaj zog nrog tas mus li hlau nplaum. Lub ntsiab sib txawv ntawm synchronous thiab asynchronous tshuab - stator thiab rotor tsim.

Yuav kom accelerate lub cev muaj zog mus txog rau lub nyob ceev theem feem ntau siv asynchronous hom. Nyob rau hauv no hom, lub inductor winding luv luv-circuited. Tom qab lub cav mus rau lub nyob ceev, lub rectifier khoom siv DC inductor. Tsuas yog nominal ceev synchronous lub cev muaj zog muaj peev xwm ua hauj lwm ntawm nws tus kheej.

Xws li ib tug lub cev muaj zog muaj ntau yam zoo. Nws yog ib qho kev txiav txim ntawm qhov ntau ntau asynchronous tshuab, tab sis qhov no yog offset los ntawm ib tug xov tooj ntawm zoo. Ib tug ntawm lub ntsiab zoo - nws muaj peev xwm ua hauj lwm tsis muaj tus noj ntawm reactive hwj chim los sis tej yam. Yog li lub cav fais fab zoo tshaj yuav yog sib npaug zos rau kev sib sau. Nyob rau hauv cov tej yam kev mob, ib tug synchronous AC tsav yog heev dua lwm yam active load network tivthaiv. Ib tug sab nyhuv yog los txo cov lub cev muaj zog loj (rau ib tug induction lub cev muaj zog, cov stator winding yog payment thiab lub active thiab reactive currents rau). Txawm li cas los, lub synchronous lub cev muaj zog muaj peev xwm ua kom muaj tiag tiag thiab reactive lub hwj chim, kev khiav hauj lwm nyob rau hauv overexcitation hom.

Lub synchronous lub cev muaj zog npaum li cas tsawg rhiab rau hloov mus hloov los thiab voltage dauv nyob rau hauv lub network. Xws li hluav taws xob lub tsheb muaj ib tug ntau dua kuj mus overloads. tau ua rau kom cov overload peev xwm ntawm lub engine los ntawm nce lub excitation tam sim no. Qhov kom zoo dua nrog cov synchronous tshuab yog tseem qhov nominal muab ceev thaum twg load (tsuas yog overload).

Undoubtedly, xws li ib tug tshuab raws li ib tug synchronous lub cev muaj zog muaj nws tus kheej tsis muaj zog. Lawv yog txuam nrog rau nqi siab thiab nyuab lag luam. Lub ntsiab teeb meem yog cov excitation ntawm lub cev muaj zog thiab nws cov kev taw qhia mus rau hauv synchronism. Tam sim no pom kis thyristor exciters, uas muaj ib tug ntau dua efficiency, tshaj rau hluav taws xob pathogens. Txawm li cas los, lawv cov nqi yog ntau dua. Siv cov thyristor hloov yuav daws tau ntau cov teeb meem: cov pom excitation tam sim no kev cai, txhawb cosine Officer qhov nqi, cov kev tswj voltage rau cov log tsheb, tswj lub stator currents thiab lub rotor nyob rau hauv lub thaum muaj xwm ceev hom, thiab nyob rau hauv cov ntaub ntawv ntawm overload.