1. Matla a morao a electromotive a hlahisoa joang?
Ha e le hantle, moloko oa morao oa motlakase oa motlakase o bonolo ho o utloisisa. Baithuti ba nang le mohopolo o betere ba lokela ho tseba hore ba kile ba e bona ho tloha ha ba le sekolong se phahameng le sekolong se phahameng. Leha ho le joalo, ka nako eo e ne e bitsoa induced electromotive force. Molao-motheo ke hore mokhanni o khaola melapo ea makenete. Hafeela ho na le tse peli Relative tshisinyo ho lekane, ebang ke matla a khoheli ha a sisinyehe 'me conductor fokotsa; e ka boela ea e-ba hore mokhanni ha a sisinyehe 'me matla a khoheli a sisinyeha.
Bakeng sa makenete e sa feleng ea synchronouskoloi, li-coil tsa eona li tsitsitse ho stator (conductor), 'me li-magnets tse sa feleng li behiloe ho rotor (magnetic field). Ha rotor e potoloha, matla a khoheli a hlahisoang ke makenete a sa feleng ho rotor a tla potoloha ebe a hoheloa ke stator. Koele e holim'a khoele e khaotsoe lematla a ka morao a motlakasee hlahisoa ka khoele. Ke hobane'ng ha e bitsoa back electromotive force? Joalo ka ha lebitso le fana ka maikutlo, hobane tataiso ea matla a morao a motlakase E khahlanong le tataiso ea motlakase oa terminal U (joalo ka ha ho bontšitsoe setšoantšong sa 1).
2. Ho na le kamano efe pakeng tsa matla a morao a electromotive le voltage terminal?
Ho ka bonoa ho Setšoantšo sa 1 hore kamano pakeng tsa matla a motlakase a morao le motlakase oa motlakase tlas'a mojaro ke:
Bakeng sa teko ea matla a morao a motlakase, hangata e lekoa tlas'a boemo ba ho se be le moroalo, ha ho na hona joale, 'me lebelo la ho potoloha ke 1000rpm. Ka kakaretso, boleng ba 1000rpm bo hlalosoa, 'me mokokotlo oa motlakase oa motlakase oa morao = tekanyo ea karolelano ea matla a morao a motlakase / lebelo. The back electromotive force coefficient ke parameter ea bohlokoa ea motlakase. Hoa lokela ho hlokomeloa mona hore matla a morao a electromotive tlas'a mojaro a lula a fetoha pele lebelo le tsitsitse. Ho tloha ho equation (1), re ka tseba hore matla a ka morao a electromotive tlas'a mojaro a ka tlaase ho matla a motlakase. Haeba matla a motlakase a ka morao a le matla ho feta motlakase oa motlakase, e fetoha jenereithara ebe o ntša motlakase ka ntle. Kaha ho hanyetsa le hona joale mosebetsing oa sebele ke tse nyenyane, boleng ba matla a morao a motlakase bo batla bo lekana le motlakase oa ho qetela 'me bo lekanyelitsoe ke boleng bo lekantsoeng ba motlakase oa motlakase.
3. Moelelo oa 'mele oa matla a morao a electromotive
Ak'u inahanele hore na ho ne ho tla etsahala'ng haeba matla a ka morao a electromotive a ne a le sieo? E ka bonoa ho tsoa ho equation (1) hore ntle le matla a motlakase a morao, koloi eohle e lekana le sehanyetsi se hloekileng 'me e fetoha sesebelisoa se hlahisang mocheso o matla haholo. Senae khahlanong le taba ea hore motlakase o fetola matla a motlakase homatla a mochini.
Ka kamano ea ho fetola matla a motlakase
, UIt ke ho kenya matla a motlakase, joalo ka ho kenya matla a motlakase ka har'a betri, koloi kapa transformer; I2Rt ke matla a ho lahleheloa ke mocheso potolohong e 'ngoe le e' ngoe, karolo ena ea matla ke mofuta oa matla a ho lahleheloa ke mocheso, tse nyane li betere; ho kenya matla a motlakase le tahlehelo ea mocheso Phapang ea matla a motlakase ke karolo ea matla a bohlokoa a tsamaellanang le matla a morao a motlakase.
, ka mantsoe a mang, matla a morao a electromotive a sebelisoa ho hlahisa matla a molemo, a amanang le ho lahleheloa ke mocheso. Ha matla a ho lahleheloa ke mocheso a mangata, a fokotseha matla a molemo a ka finyelloang.
Ho bua ka sepheo, matla a morao a electromotive a sebelisa matla a motlakase potolohong, empa ha se "tahlehelo". Karolo ea matla a motlakase e tsamaellanang le matla a morao a motlakase a tla fetoloa matla a bohlokoa bakeng sa lisebelisoa tsa motlakase, joalo ka matla a mochini a enjene le matla a betri. Matla a lik'hemik'hale joalo-joalo.
Ho ka bonoa hore boholo ba matla a ka morao a motlakase a bolela bokhoni ba lisebelisoa tsa motlakase ho fetola matla a kenyelletsoeng hore e be matla a molemo, 'me a bonahatsa boemo ba matla a ho fetola thepa ea motlakase.
4. Boholo ba matla a ka morao a electromotive bo itšetlehile ka eng?
Pele fana ka mokhoa oa ho bala oa matla a morao a electromotive:
E ke matla a motlakase a khoele, ψ ke khokahanyo ea makenete, f ke maqhubu, N ke palo ea ho thinya, 'me Φ ke matla a khoheli.
Ho itšetlehile ka mokhoa o ka holimo, ke lumela hore motho e mong le e mong a ka bolela lintlha tse 'maloa tse amang boholo ba matla a morao a electromotive. Kakaretso ea sengoloa ke ena:
(1) Matla a morao a electromotive a lekana le sekhahla sa phetoho ea khokahanyo ea khoheli. Ha lebelo la ho potoloha le phahame, lebelo la phetoho le leholo le ho feta le matla a morao a electromotive;
2 Ka hona, ha palo ea ho chenchana e phahame, khokahanyo ea makenete e ea kholoanyane le matla a morao a electromotive a maholo;
(3) Palo ea ho thinya e amana le morero oa matsoelintsoeke, khokahano ea naleli-delta, palo ea ho thinya ka sekotjana, palo ea mekhahlelo, palo ea meno, palo ea makala a bapileng, sekema se felletseng kapa se khuts'oane;
(4) Khokahano ea khoheli e le 'ngoe e lekana le matla a magnetomotive a arotsoeng ke matla a khoheli. Ka hona, matla a magnetomotive a maholo, matla a khoheli a fokotseha ka lehlakoreng la khokahanyo ea khoheli, 'me matla a morao a motlakase a matla;
(5) Matla a khohelie amana le tšebelisano-'moho ea lekhalo la moea le sekoti sa palo. Ha lekhalo la moea le le leholo, matla a khoheli a matla a matla a khoheli le matla a ka morao a motlakase a fokotseha. Khokahano ea pole-groove e batla e rarahane ebile e hloka tlhahlobo e qaqileng;
(6) Matla a magnetomotive a amana le ho tsosolosoa ha makenete le sebaka se sebetsang sa makenete. The remanence e kholoanyane, e phahamisa matla a electromotive a morao. Sebaka se sebetsang se amana le tataiso ea magnetizing, boholo le ho behoa ha makenete, 'me e hloka tlhahlobo e khethehileng;
(7) Magnetic e setseng e amana le mocheso. Ha mocheso o phahame, matla a ka morao a electromotive a fokotseha.
Ka kakaretso, lintlha tse susumetsang tsa matla a motlakase a ka morao li kenyelletsa lebelo la ho potoloha, palo ea ho tjeka ka slot, palo ea mekhahlelo, palo ea makala a bapileng, sekontiri se khuts'oane, potoloho ea motlakase, bolelele ba lekhalo la moea, khokahano ea pole-slot, magnetism e setseng ea makenete, le boemo ba ho beha makenete. Le boholo ba makenete, tataiso ea magnetization, mocheso.
5. Mokhoa oa ho khetha boholo ba matla a morao a electromotive ka moralo oa motlakase?
Moralo oa enjene, matla a morao a electromotive E a bohlokoa haholo. Ke nahana hore haeba matla a ka morao a electromotive a entsoe hantle (khetho e nepahetseng ea boholo le tekanyo e tlaase ea ho sotha ha maqhubu), mochine o tla ba o motle. Litlamorao tse kholo tsa matla a morao a electromotive ho li-motor ke tse latelang:
1. Boholo ba matla a ka morao a electromotive bo etsa qeto ea hore na sebaka se fokolang sa motlakase ke sefe, 'me sebaka se fokolang sa tšimo se etsa qeto ea ho ajoa ha' mapa oa katleho ea motlakase.
2. Sekhahla se sothehileng sa mokokotlo oa motlakase oa motlakase oa motlakase se ama molumo oa motlakase oa motlakase le botsitso ba tlhahiso ea torque ha motlakase o ntse o sebetsa.
3. Boholo ba matla a motlakase a ka morao a lekanya ka ho toba coefficient torque ea motlakase, 'me mokokotlo oa motlakase oa motlakase o ka morao o lekana ka ho toba le torque coefficient. Ho sena re ka fumana likhanyetsano tse latelang tse tobaneng le moralo oa enjene:
a. Ha matla a morao a motlakase a ntse a eketseha, koloi e ka boloka torque e phahameng ka tlas'aea molaolifokotsa lebelo la hona joale sebakeng sa ts'ebetso e tlase, empa ha e khone ho hlahisa torque ka lebelo le phahameng, kapa esita le ho fihla lebelo le lebelletsoeng;
b. Ha matla a motlakase a morao a le monyenyane, motlakase o ntse o e-na le bokhoni ba ho hlahisa sebakeng se phahameng, empa torque e ke ke ea finyelloa tlas'a taolo e tšoanang ea hona joale ka lebelo le tlaase.
Ka hona, moralo oa matla a ka morao a electromotive o itšetlehile ka litlhoko tsa sebele tsa motlakase. Mohlala, moralong oa enjene e nyane, haeba ho hlokahala hore o ntse o hlahisa torque e lekaneng ka lebelo le tlase, matla a morao a motlakase a tlameha ho etsoa hore a be kholoanyane.
Nako ea poso: Feb-04-2024