Back electromotive force inogadzirwa nekupikisa maitiro ezvino mumhepo yekuchinja. Back electromotive force inogadzirwa mumamiriro anotevera: (1) kana alternating current ichipfuura nepacoil; (2) kana conductor akaiswa mune inochinjanisa magineti; (3) kana conductor acheka nepakati pemagineti. Kana midziyo yemagetsi yakaita serelay coil, electromagnetic valves, contactor coils, uye motor windings zviri kushanda, zvese zvinogadzira induced electromotive force.
Chizvarwa chekutsiga-chazvino chinoda mamiriro maviri anodiwa: chekutanga, yakavharwa conductive loop. Chechipiri, shure electromotive simba. Isu tinogona kunzwisisa chiitiko che induced electromotive force kubva kune induction motor: matatu-phase symmetrical voltages anoshandiswa kune stator windings yemota ine musiyano we120 madhigirii, ichigadzira denderedzwa inotenderera magineti, kuitira kuti mazariro erotor akaiswa mune ino. inotenderedza magineti inoiswa pasi pesimba remagetsi, kuchinja kubva kune static kuenda kune inotenderera inofamba, ichigadzira induced kugona mumabhawa, uye induced yazvino inoyerera kuburikidza neyakavharwa loop yemabhawa akabatanidzwa ne conductive end mhete. Nenzira iyi, simba remagetsi kana electromotive simba rinogadzirwa mumarotor bars, uye iyi electromotive simba ndiyo inonzi back electromotive force. Mune ronda rotor mota, iyo rotor yakavhurika yedunhu voltage ndeye yakajairika kumashure electromotive simba.
Mhando dzakasiyana dzemotor dzine shanduko dzakasiyana zvachose muhukuru hwekumashure electromotive simba. Saizi yemashure emagetsi emagetsi eiyo asynchronous mota inoshanduka nehukuru hwekuremerwa chero nguva, zvichiita kuti zvive zvakasiyana kwazvo zviratidzo zvinogoneka pasi pemamiriro akasiyana emutoro; mune inogara magineti mota, chero kumhanyisa kunoramba kusingachinji, saizi yemashure emagetsi emagetsi inoramba isina kuchinjika, saka zviratidzo zvinogoneka pasi pemamiriro akasiyana emutoro zvinoramba zvisina kushanduka.
Chirevo chemuviri che back electromotive force is electromotive force inopesana nekufamba kwezvino kana shanduko yezvino. Musimba remagetsi rekushandura hukama UIt=ε逆It+I2Rt, UIt ndiyo simba remagetsi rekuisa, sekuisa simba remagetsi kubhatiri, mota kana transformer; I2Rt ndiyo simba rekurasikirwa nekupisa munharaunda yega yega, inova rudzi rwekupisa kwekupisa simba, idiki iri nani; mutsauko pakati pekuisa simba remagetsi uye kupisa kurasikirwa kwesimba remagetsi chikamu chesimba rinobatsira ε逆Inoenderana neshure remagetsi emagetsi. Mune mamwe mazwi, simba rekumashure remagetsi rinoshandiswa kugadzira simba rinobatsira uye rinopindirana nekurasikirwa nekupisa. Iyo yakakura yekurasikirwa nekupisa simba, iyo idiki iyo inogoneka inobatsira simba.
Nechinangwa kutaura, iyo kumashure EMF inoshandisa simba remagetsi mudunhu, asi haisi "kurasikirwa". Chikamu chesimba remagetsi chinoenderana nekumashure EMF chinozoshandurwa kuita simba rinobatsira remidziyo yemagetsi, senge mechanical simba remota uye kemikari simba rebhatiri.
Zvinogona kuonekwa kuti saizi yeEMF yekumashure inoreva simba rekugona kwechigadzirwa chemagetsi kushandura simba rose rekupinda kuita simba rinobatsira, zvichiratidza huwandu hwekugona kutendeuka kwemidziyo yemagetsi.
Zvinhu zvinotarisa kumashure EMF Zvezvigadzirwa zvemota, huwandu hwe stator inotenderera inotenderera, iyo rotor angular velocity, iyo magineti inogadzirwa neiyo rotor magineti, uye mukaha wemhepo pakati pe stator uye rotor zvinhu zvinotarisa kumashure EMF yemota. . Kana iyo mota yakagadzirwa, iyo rotor magnetic field uye nhamba yekutendeuka kwe stator winding inotarirwa. Nokudaro, chinhu chimwe chete chinotarisa kumashure kweEMF ndiyo rotor angular velocity, kana kuti rotor speed. Sezvo kumhanya kwe rotor kunowedzera, iyo kumashure EMF inowedzerawo. Musiyano uripo pakati peiyo stator yemukati dhayamita uye rotor yekunze dhayamita ichakanganisa saizi yemhepo yemagineti flux, iyo ichakanganisawo kumashure EMF.
Zvinhu zvekuona kana mota ichimhanya ● Kana iyo mota ikamira kutenderera nekuda kwekunyanya kushomeka kwemagetsi, hapana kumashure emagetsi emagetsi panguva ino. Iyo coil ine kushomeka kushoma yakabatana zvakananga kumigumo miviri yemagetsi. Ikozvino ichave yakakura kwazvo, iyo inogona kupisa mota nyore nyore. Iyi mamiriro ichasangana mukuyedzwa kwemota. Semuyenzaniso, bvunzo yekudyira inoda kuti mota rotor ive munzvimbo yakamira. Panguva ino, mota yakakura kwazvo uye iri nyore kupisa mota. Parizvino, vagadziri vazhinji vemota vanoshandisa ipapo kukosha kwekuunganidza bvunzo yestall, iyo inodzivirira dambudziko rekutsva kwemota kunokonzerwa nenguva refu yekumira. Nekudaro, sezvo mota yega yega ichikanganiswa nezvinhu zvakasiyana senge kuungana, iyo yakaunganidzwa hunhu hwakasiyana uye haigone kunyatso kuratidza mamiriro ekutanga emota.
● Kana magetsi emagetsi akabatanidzwa kune motokari akadzikira zvakanyanya kudarika mhepo yakajairwa, coil yemotokari haizotenderera, hapana simba remagetsi remashure richagadzirwa, uye motokari inopera nyore nyore. Dambudziko iri rinowanzoitika mumamota anoshandiswa mumitsara yenguva pfupi. Semuenzaniso, mitsetse yenguva pfupi inoshandisa magetsi emagetsi. Nekuda kwekuti vari kushandisa kamwe chete uye kudzivirira humbavha, mazhinji acho achashandisa aluminium core waya pakudzora mutengo. Nenzira iyi, kudonha kwemagetsi pamutsetse kuchave kwakakura kwazvo, zvichikonzera kusakwana kwemagetsi ekuisa mota. Nomuzvarirwo, iyo yekumashure electromotive simba inofanira kunge iri diki. Muzviitiko zvakakomba, mota ichave yakaoma kutanga kana kutotadza kutanga. Kunyangwe mota ikatanga, inomhanya pane yakakura ikozvino mune isina kujairika mamiriro, saka mota inotsva nyore nyore.
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