Kuyambitsa kwa brushless DC motor mu zida zamagetsi

Ndi kukonza kwa batire yatsopano ndi ukadaulo wowongolera zamagetsi, kapangidwe kake ndi kupanga kwa brushless DC mota zachepetsedwa kwambiri, ndipo zida zosavuta zowonjezedwanso zomwe zimafunikira brushless DC mota zatchuka ndikugwiritsidwa ntchito kwambiri. Amagwiritsidwa ntchito kwambiri m'mafakitale opangira mafakitale, kusonkhanitsa ndi kukonza, makamaka ndi chitukuko cha zachuma, kufunikira kwa mabanja kukukulirakulira, ndipo kukula kwapachaka ndikwambiri kuposa kwa mafakitale ena.

2, chosavuta kubwezanso chida chamagetsi chamagetsi ogwiritsira ntchito

2.1 Makina opukutira a DC

Kapangidwe kagalimoto ka brushless DC kumaphatikizapo rotor (shaft, iron core, winding, commutator, bearing), stator (casing, maginito, end cap, etc.), carbon brush assembly, carbon brush arm ndi zina.

Mfundo yogwirira ntchito: Stator ya brushed DC motor imayikidwa ndi mlongoti wokhazikika (maginito) ndi burashi, ndipo rotor imayikidwa ndi mafunde a armature ndi commutator. Mphamvu yamagetsi yamagetsi yamagetsi ya DC imalowa m'malo opindika kudzera muburashi ya kaboni ndi commutator, ndikupanga zida zamakono. Mphamvu ya maginito yopangidwa ndi zida zamakono imalumikizana ndi gawo lalikulu la maginito kuti ipange torque yamagetsi, yomwe imapangitsa mota kuzungulira ndikuyendetsa katundu.

Zoyipa: Chifukwa cha kukhalapo kwa burashi ya kaboni ndi commutator, kudalirika kwa ma brush motor ndikotsika, kulephera, kusakhazikika kwapano, moyo waufupi, ndi commutator spark zimabweretsa kusokoneza kwamagetsi.

2.2 Brushless DC mota

Kapangidwe ka motor brushless DC kumaphatikizapo rotor yamoto (shaft, iron core, magnet, bearing), stator (casing, iron core, winding, sensor, end cover, etc.) ndi zida zowongolera.

Mfundo yogwirira ntchito: Brushless DC mota imakhala ndi thupi ndi dalaivala, ndi chinthu wamba chamagetsi. Mfundo yogwirira ntchito ndi yofanana ndi yamoto wamoto, koma chojambulira chachikhalidwe ndi burashi ya kaboni amasinthidwa ndi sensa ya malo ndi mzere wowongolera, ndipo mayendedwe apano amasinthidwa ndi lamulo lowongolera lomwe limaperekedwa ndi siginecha yozindikira kuti izindikire ntchito yosinthira, kuti kuwonetsetsa kuti ma torque amagetsi okhazikika komanso chiwongolero cha mota ndikupangitsa kuti injiniyo izungulire.

Kusanthula kwa brushless DC motor mu zida zamagetsi

3. Ubwino ndi kuipa kwa BLDC galimoto ntchito

3.1 Ubwino wagalimoto ya BLDC:

3.1.1 Mapangidwe osavuta komanso odalirika:

Chotsani commutator, burashi ya kaboni, mkono wa brush ndi mbali zina, palibe kuwotcherera kwa commutator, kumaliza.

3.1.2 Moyo wautali wautumiki:

Kugwiritsa ntchito zida zamagetsi m'malo mwa chikhalidwe cha commutator, kuchotsa mota chifukwa cha burashi ya kaboni ndi spark commutator spark, kuvala kwamakina ndi zovuta zina zomwe zimayambitsidwa ndi moyo waufupi, moyo wamagalimoto ukuchulukirachulukira.

3.1.3 Yachete komanso yothandiza kwambiri:

Palibe burashi ya kaboni ndi kapangidwe ka commutator, pewani kutentha kwa commutator ndi mikangano yamakina pakati pa burashi ya kaboni ndi commutator, zomwe zimapangitsa phokoso, kutentha, kutaya mphamvu kwagalimoto, kuchepetsa mphamvu yagalimoto. Brushless DC galimoto mphamvu mu 60 ~ 70%, ndi brushless DC galimoto mphamvu angathe kukwaniritsa 75 ~ 90%

3.1.4 Kuwongolera mwachangu komanso kuthekera kowongolera:

Zolondola zamagetsi zamagetsi ndi masensa amatha kuwongolera liwiro, torque ndi malo agalimoto, kuzindikira zanzeru komanso zogwira ntchito zambiri.