How to measure the basic parameters of the motor?

Tikakhala ndi mota m'manja mwathu, ngati tikufuna kuiwongolera, tiyenera kudziwa magawo ake oyambira.Zofunikira izi zidzagwiritsidwa ntchito mu 2, 3, 6, ndi 10 pachithunzi pansipa.Ponena za chifukwa chake magawowa amagwiritsidwa ntchito, tidzafotokozera mwatsatanetsatane tikayamba kukoka fomula.Ndiyenera kunena kuti ndimadana kwambiri ndi ma formula, koma sindingathe kuchita popanda ma formula.Zomwe tikukambirana m'nkhaniyi ndi njira yolumikizira nyenyezi yamagalimoto.

Rs gawo kukana

Kuyeza kwa chizindikirochi ndikosavuta.Gwiritsani ntchito ma multimeter m'manja mwanu kuti muyese kukana pakati pa magawo awiri aliwonse, ndikugawaniza ndi 2 kuti mupeze kukana kwa gawo ma Rs a mota.

Chiwerengero cha ma pole n

Kuyeza uku kumafuna magetsi oyendetsedwa bwino okhala ndi malire apano.Ikani mphamvu pazigawo ziwiri zilizonse za mawaya agawo atatu agalimoto m'manja mwanu.Pakalipano yomwe ikufunika kukhala yochepa ndi 1A, ndipo magetsi omwe amayenera kudutsa ndi V = 1 * Rs (magawo omwe amayezedwa pamwambapa).Kenako tembenuzani rotor ndi dzanja, mudzamva kukana.Ngati kukana sikukuwonekera, mukhoza kupitiriza kuonjezera magetsi mpaka pali kukana kozungulira kowonekera.Pamene galimoto imazungulira bwalo limodzi, chiwerengero cha malo okhazikika a rotor ndi chiwerengero cha ma pole awiri a galimotoyo.

Ls stator inductance

Izi zimafuna kugwiritsa ntchito mlatho kuyesa inductance pakati pa magawo awiri a stator, ndipo mtengo wopezeka umagawidwa ndi 2 kuti upeze Ls.

Back EMF Ke

Pa pulogalamu yowongolera ya FOC, magawo ochepa awa okhudzana ndi mota ndiwokwanira.Ngati mphamvub ya matlab ikufunika, mphamvu yakumbuyo ya electromotive ya injini imafunikanso.Kuyeza kwa parameter uku ndikovuta kwambiri.M'pofunika kukhazikika galimoto pa n revolutions, ndiyeno ntchito oscilloscope kuyeza voteji wa magawo atatu pambuyo kusintha kwa galimoto kukhazikika, monga momwe chithunzi chili pansipa:

M'njira yomwe ili pamwambapa, Vpp ndi mtengo wa volt pakati pa nsonga ndi mtsinje wa mawonekedwe a waveform.

Kumene Te=60/(n*p), n ndi ma mechanical speed unit rpm, ndipo p ndi chiwerengero cha ma pole awiri.Ngati injini imasunga ma revolution 1000, n ikufanana ndi 1000.

Tsopano pali algorithm yotchedwa motor parameter identification.Izi ndikugwiritsa ntchito algorithm kuti wowongolera magalimoto akhale ndi mayeso a multimeter kapena mlatho, ndiyeno ndi nkhani yoyezera ndi kuwerengera.Chizindikiritso cha parameter chidzafotokozedwa mwatsatanetsatane potengera ma fomula oyenera pambuyo pake.

Nthawi yotumiza: Mar-28-2023

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