N’chifukwa chiyani tiyenera kusankha deep groove rotor ya asynchronous motor ya squirrel cage?

Chifukwa cha kufalikira kwa magetsi osinthasintha, vuto loyambira la ma mota lakhala losavuta kuthetsa, koma pamagetsi wamba, kuyambira kwachozungulira cha khola la agologoloMa mota osasinthasintha nthawi zonse akhala vuto. Kuchokera ku kusanthula kwa magwiridwe antchito oyambira ndi othamanga a ma mota osasinthasintha, zitha kuwoneka kuti kuti muwonjezere mphamvu yoyambira ndikuchepetsa mphamvu yamagetsi poyambira, kukana kwa rotor kumafunika kukhala kwakukulu; pomwe pamene mota ikuyenda, kuti muchepetse kutayika kwa mkuwa wa rotor ndikuwonjezera magwiridwe antchito a injini, kukana kwa rotor kumafunika kukhala kochepa; izi mwachiwonekere ndi kutsutsana.
Pa ma motors a rotor a wound, popeza resistor imatha kulumikizidwa motsatizana panthawi yoyambira kenako nkuchotsedwa panthawi yogwira ntchito, izi zimakwaniritsidwa bwino. Komabe, motor ya rotor ya wound asynchronous ili ndi kapangidwe kovuta, mtengo wokwera, komanso kukonza kosasangalatsa, komwe kumachepetsa kugwiritsa ntchito kwake pamlingo winawake; izi zimapangitsa anthu kuyamba kuchokera pa mawonekedwe a rotor slot a khola la agologolo.mota yopanda ulusindipo yesani kugwiritsa ntchito "zotsatira za khungu" kuti mukwaniritse cholinga cha kukana kwakukulu koyambira ndi kukana pang'ono panthawi yogwira ntchito. Ma mota ozungulira a deep slot ndi double squirrel cage ali ndi magwiridwe antchito oyambira awa. Lero, tiyeni tikambirane za ma mota ozungulira a deep slot.

Galimoto yozama yopanda mphamvu

Pofuna kukulitsa mphamvu ya khungu, mawonekedwe a malo olumikizirana a deep slot asynchronous motor rotor ndi akuya komanso opapatiza, ndipo chiŵerengero cha kuya kwa malo ndi m'lifupi mwa malo chili pakati pa 10-12. Pamene mphamvu yamagetsi imadutsa m'mipiringidzo ya rotor, kutulutsira kwa madzi komwe kumalumikizana ndi pansi pa mipiringidzo kumakhala kwakukulu kuposa kutulutsira kwa madzi komwe kumalumikizana ndi malo otsegulira. Chifukwa chake, ngati mipiringidzoyo imawonedwa ngati ma conductors ang'onoang'ono omwe amagawidwa kutalika kwa malo olumikizidwa motsatizana, ma conductors ang'onoang'ono omwe ali pafupi ndi pansi pa malo amakhala ndi kutulutsira kwakukulu, ndipo pamene malo otsegulira ali pafupi, kutulutsira kwa madzi kumakhala kochepa.
Poyamba, popeza ma current current a rotor ndi okwera ndipo leak reactance ndi yayikulu, kufalikira kwa current mu kondakitala iliyonse yaying'ono kumadalira leak reactance. Leak reactance ikakula, leak current imakhala yochepa. Mwanjira imeneyi, pansi pa mphamvu yomweyo yomwe imachitika chifukwa cha maginito flux a mpweya, current density yomwe ili pafupi ndi pansi pa slot mu bar idzakhala yaying'ono kwambiri, ndipo closure ya slot ikakhala pafupi, current density imakulanso.
Chifukwa cha mphamvu ya khungu, mphamvu zambiri zikakanikizidwa kumtunda kwa conductor bar, ntchito ya conductor bar yomwe ili pansi pa malowo ndi yaying'ono kwambiri, zomwe zikufanana ndi kuchepetsa kutalika ndi gawo la conductor bar, kotero kukana kwa rotor kumawonjezeka, ndikukwaniritsa zofunikira za kukana kwakukulu poyambira. Pamene mota yayamba ndipo mota ikuyenda bwino, chifukwa cha kuchuluka kochepa kwa rotor current, kutayikira kwa kuzunguliza kwa rotor kumakhala kochepa kwambiri kuposa kukana kwa rotor, kotero kufalikira kwa mphamvu mu conductors ang'onoang'ono omwe atchulidwawa kudzatsimikiziridwa makamaka ndi kukana.

Popeza kukana kwa kondakitala aliyense wamng'ono kuli kofanana, mphamvu yamagetsi mu kondakitala idzagawidwa mofanana, kotero mphamvu ya khungu imatha, ndipo kukana kwa kondakitala wa kondakitala wa rotor kumakhala kochepa kachiwiri, pafupi ndi kukana kwa DC. Zitha kuwoneka kuti kugwira ntchito kwabwinobwino kwa kukana kwa kondakitala kudzachepa zokha, motero kukwaniritsa zotsatira za kuchepetsa kutayika kwa mkuwa ndikuwongolera magwiridwe antchito.
Kodi zotsatira za khungu ndi zotani?

Zotsatira za khungu zimatchedwanso zotsatira za khungu. Pamene mphamvu yosinthira ikudutsa mu kondakitala, mphamvuyo imakhazikika pamwamba pa kondakitala. Chochitika ichi chimatchedwa zotsatira za khungu. Pamene mphamvu kapena magetsi akuchitika mu kondakitala ndi ma elekitironi okwera, amasonkhana pamwamba pa kondakitala yonse m'malo mogawidwa mofanana m'dera lonse la kondakitala.

Zotsatira za khungu sizimangokhudza kukana kwa rotor, komanso momwe rotor imayankhira. Kuchokera panjira ya slot leakage flux, zitha kuwoneka kuti mphamvu yodutsa mu conductor yaying'ono imangopanga leakage flux kuchokera ku conductor yaying'ono kupita ku slot, koma osati kuchokera ku conductor yaying'ono kupita pansi pa slot, chifukwa yomalizayi ilibe mgwirizano ndi mphamvu. Mwanjira imeneyi, pa mphamvu yomweyi, pamene ili pafupi ndi pansi pa slot, leakage flux imapangidwa kwambiri, ndipo pamene ili pafupi ndi slot, leakage flux imapangidwa pang'ono. Zitha kuwoneka kuti pamene zotsatira za khungu zikakanikiza mphamvu mu conductor kupita ku slot, leakage flux yopangidwa ndi mphamvu yomweyi imachepetsedwa, kotero leakage flue reaction imachepetsedwa. Chifukwa chake, zotsatira za khungu zimawonjezera kukana kwa rotor ndikuchepetsa leakage reaction ya rotor.

Mphamvu ya zotsatira za khungu imadalira kuchuluka kwa mphamvu ya rotor komanso kukula kwa malo olumikizirana. Ma frequency akakwera komanso kuzama kwa malo olumikizirana, zotsatira za khungu zimakhala zazikulu kwambiri. Pa rotor yomweyi, ngati ma frequency ndi osiyana, zotsatira za khungu zidzakhala zosiyana, ndipo magawo a rotor nawonso adzakhala osiyana. Chifukwa cha izi, kukana kwa rotor ndi kutayikira kwa madzi panthawi yogwira ntchito komanso yoyambira ziyenera kudziwika bwino ndipo sizingasokonezedwe. Pa ma frequency omwewo, zotsatira za khungu la ma rotor ozungulira kwambiri ndi amphamvu kwambiri, koma zotsatira za khungu zimakhalanso ndi mphamvu pa ma rotor wamba a squirrel cage. Chifukwa chake, ngakhale pa rotor yokhala ndi squirrel-cage yokhala ndi kapangidwe kabwinobwino, magawo a rotor poyambira ndi ntchito ayenera kuwerengedwa padera.
Kutuluka kwa mpweya wozungulira wa mphuno yozamamota yopanda ulusiChifukwa cha mawonekedwe a mphuno yakuya ya rotor, imachepa ndi zotsatira za khungu, koma pambuyo pochepetsa, kutayikira kwa mphuno ya rotor kumakhalabe kwakukulu kuposa kwa mphuno ya squirrel cage rotor wamba. Chifukwa chake, mphamvu yamagetsi ndi mphamvu yayikulu ya ma motors a deep groove ndizochepa pang'ono kuposa za ma motors wamba a squirrel cage.