Kulankhula za kumbuyo electromotive mphamvu ya okhazikika maginito synchronous galimoto

1. Kodi mmbuyo electromotive mphamvu kwaiye?

Mphamvu yakumbuyo yama electromotive imatchedwanso kuti induced electromotive force. Mfundo: kondakitala amadula mizere ya maginito ya mphamvu.

The rotor wa okhazikika maginito synchronous motor ndi maginito okhazikika, ndipo stator ndi bala ndi koyilo. Pamene rotor imazungulira, maginito opangidwa ndi maginito okhazikika amadulidwa ndi ma coils pa stator, kutulutsa mphamvu yamagetsi yamagetsi pa koyilo (mosiyana ndi ma terminal voteji U).

2. Ubale pakati pa mphamvu ya electromotive kumbuyo ndi magetsi otsiriza

3. Tanthauzo lakuthupi la mphamvu yakumbuyo ya electromotive

Back EMF: imapanga mphamvu zothandiza ndipo imagwirizana mosagwirizana ndi kutentha kwa kutentha (imasonyeza mphamvu ya kutembenuka kwa chipangizo chamagetsi).

4. Kukula kwa mphamvu yakumbuyo ya electromotive

Chidule:

(1) EMF yakumbuyo ndi yofanana ndi kuchuluka kwa kusintha kwa maginito. Kuthamanga kwapamwamba, kusintha kwakukulu kwa kusintha ndi kukulirakulira kwa EMF kumbuyo.

(2) Kuthamanga komweko kumakhala kofanana ndi kuchuluka kwa matembenuzidwe ochulukitsidwa ndi kusinthasintha kulikonse. Chifukwa chake, kuchuluka kwa kutembenuka kumakhala kokulirakulira komanso kukulira kwa EMF kumbuyo.

(3) Chiwerengero cha kutembenuka chikugwirizana ndi ndondomeko yokhotakhota, kugwirizana kwa nyenyezi-delta, chiwerengero cha kutembenuka pa slot, chiwerengero cha magawo, chiwerengero cha mano, chiwerengero cha nthambi zofanana, ndi ndondomeko yathunthu kapena yaifupi;

(4) The single-turn flux ndi yofanana ndi mphamvu ya magnetomotive yogawanika ndi maginito kukana. Chifukwa chake, mphamvu yayikulu ya magnetomotive, kukana kwa maginito komwe kumayendera komanso kukulirapo kumbuyo kwa electromotive mphamvu.

(5) Kukana kwa maginito kumayenderana ndi kusiyana kwa mpweya ndi kulumikizana kwa pole-slot. Kuchuluka kwa kusiyana kwa mpweya, ndikokulirapo kwa mphamvu ya maginito komanso kucheperachepera kwa mphamvu yamagetsi yamagetsi. Kulumikizana kwa pole-slot ndizovuta kwambiri ndipo kumafuna kusanthula kwachindunji;

(6) Mphamvu ya magnetomotive imagwirizana ndi maginito otsalira a maginito ndi malo ogwira ntchito a maginito. Kukula kwa maginito otsalira, kumapangitsanso mphamvu yakumbuyo ya electromotive. Malo ogwira ntchito akugwirizana ndi kayendetsedwe ka magnetization, kukula ndi kuyika kwa maginito, zomwe zimafuna kusanthula kwapadera;

(7) Remanence imagwirizananso ndi kutentha. Kutentha kwapamwamba, kumakhala kochepa kumbuyo kwa EMF.

Mwachidule, zinthu zomwe zikukhudza EMF kumbuyo zikuphatikiza kuthamanga kwa kuzungulira, kuchuluka kwa matembenuzidwe pa slot, kuchuluka kwa magawo, kuchuluka kwa nthambi zofanana, phula lathunthu ndi phula lalifupi, maginito amagetsi, kutalika kwa mpweya, kufananiza kwa pole-slot, remanence chitsulo, maginito zitsulo makhazikitsidwe ndi kukula, maginito zitsulo magnetization malangizo, ndi kutentha.