Synchronous motors yog classified rau hauv synchronous generators thiab synchronous motors. AC lub cav nyob rau hauv cov niaj hnub fais fab nroj tsuag yog yeej los ntawm synchronous motors.
txoj haujlwm ua haujlwm
◆ Tsim kom muaj qhov sib txawv ntawm cov hlau nplaum: qhov excitation winding txuas nrog DC excitation tam sim no los tsim kom muaj qhov excitation magnetic field ntawm cov thawv polar, uas yog, lub ntsiab magnetic field yog tsim.
◆ Taug kev nqa dej tam sim no: Kev sib tw ua rau peb theem siab ua rau lub zog qeeb thiab ua tus neeg tsav tsheb rau cov peev xwm lossis qis zog.
◆ Txiav txav txav ua tus ntiv taw ua tus tig rotor tig (lub tshuab hluav taws xob yog tswv yim mus rau lub cev), thiab qhov excitation magnetic field ntawm lub ncov qaum teb tig rov qab nrog lub hau thiab qee zaus txiav qhov stator theem windings (sib thooj rau cov neeg tawm ntawm cov windings los txiav cov excitation magnetic teb).
◆ Teeb ntawm lwm qhov muaj peev xwm: Vim muaj kev sib txig sib luag ntawm kev sib zog thiab qhov sib txawv ntawm qhov chaw magnetic, qhov peb theem ntawm qhov kev hloov ntawm qhov uas qhov kev hloov ntawm qhov loj thiab qhov kev hloov yuav raug quab yuam nyob rau hauv qhov chaw seem. AC zog yog muaj los ntawm cov hlau lead.
◆ Sib pauv thiab ua kom zoo: Vim tias lub polarity ntawm cov tshuab magnetic rotation, lub polarity ntawm qhov ntxim yuav yog alternating; vim qhov symmetry ntawm lub armature winding, peb qhov theem symmetry ntawm qhov ntxim yuav peev yog guaranteed.
Kev ua haujlwm hom
◆ Muaj peb hom kev lag luam ntawm synchronous motors, namely, lawv ua haujlwm xws li cov generators, motors thiab compensators. Khiav ua ib lub tshuab hluav taws xob yog qhov tseem ceeb tshaj plaws ntawm kev lag luam rau synchronous motors. Raws li lub cav, nws yog ib qho tseem ceeb ntawm kev lag luam rau synchronous motors. Lub zog ntawm lub tshuab synchronous tau hloov. Thaum txoj cai tswj ceev tsis yog qhov yuav tsum tau, daim ntawv thov ntawm lub cav loj loj yog ua kom zoo zog khiav hauj lwm. Nyob rau hauv xyoo tas los, me me synchronous motors tau pib nrhiav ntau daim ntaub ntawv hauv kev hloov ua kom ceev nrawm. Lub tshuab synchronous kuj tseem tuaj yeem txuas nrog rau daim phiaj raws li tus synchronous compensator. Nyob rau lub sij hawm no, lub cav tsis muaj kev thauj khoom txhua yam, thiab qhov kev cia siab tam sim no hauv rotor raug kho kom xa cov kev xav tau inductive los yog cov peev xwm ua haujlwm tsis txaus ntseeg mus rau kab sib luag kom tau lub hom phiaj ntawm kev txhim kho lub zog qhov ntawm daim phiaj los yog kho qhov teeb meem ntawm kab sib chaws.
Synchronous generators, ib yam li lwm yam khoom siv hluav taws xob tshuab, muaj xws li ib tus qauv stator thiab ib lub rotor rotatable. Feem ntau faib ua txoj kev hloov lub tshuab synchronous thiab pivot synchronous lub cev.
Qhov feem ntau yog siv yog ib lub tshuab synchronous synchronous. Lub npog sab hauv ntawm tus stator tub ntxhais yog sib npaug nrog cov stator slots, thiab peb theem txheej txheem cov kab nrib nquag teem txhua zaus yog nyob hauv qhov chaw. Lub stator ntawm xws li lub cav tshuab synchronous kuj hu ua kev sibtham, thiab tus stator tub ntxhais thiab lub winding kuj hu ua cov tub ntxhais uas muaj lub plhaub thiab ib qho kev sibtham.
Cov rotor core yog muab nrog ib khub ntawm sib nqus ncej ntawm ib hom, thiab lub sib nqus winding yog mob nyob ib ncig ntawm tus pas hlau. Thaum ib qho ncaj nraim tam sim no yog siv, magnetic teb ntawm lub ncov qaumteb yog tsim nyob rau hauv cov huab cua sib txawv ntawm lub cav, uas yog hu ua excitation magnetic field (tseem hu ua lub ntsiab magnetic teb). Sib nqus teb, rotor magnetic teb).
Tus neeg tsav lub luag taw ua rau lub rotor tig (lub tshuab dag zog yog tswv yim mus rau lub cev muaj zog), thiab qhov excitation magnetic teb ntawm lub ncov qaum teb tig rov qab nrog cov ncej thiab qhov kev txiav tov rau stator theem windings (sib nug xov mus rau cov neeg lag luam ntawm qhov kev txiav cua excitation magnetic teb).
