Iyo yekutanga dzidziso yekushanda kwebrushless servo motors inotenderera nemisimboti yemagnetism uko semapango anodzinga uye mapango akatarisana anokwezva. Kune maviri magineti masosi anowanikwa mukati me servo mota: Magineti echigarire anowanzo kuwanikwa pane rotor yemota, uye yakamira magineti emagetsi anotenderedza rotor. Iyo electromagnet inodaidzwa kuti stator kana motor winding uye inoumbwa nesimbi mahwendefa anonzi laminations, anobatanidzwa pamwechete. Marata esimbi anowanzo ane "mazino" anobvumira waya yemhangura kuti ivharwe paari.
Kudzokera kunheyo dzemagineti, kana kondakita senge tambo yemhangura inoumbwa kuita coil, uye kondakita inopihwa simba kuitira kuti ikozvino inoyerera kuburikidza nayo, magnetic field inogadzirwa.
Iyi magnetic field yakagadzirwa nezvino ichipfuura kuburikidza ne conductor ichava neNorth pole uye south pole. Nemagineti mapango anowanikwa pane stator (kana simba) uye pamagineti echigarire e rotor, unoita sei mamiriro emapango akatarisana anokwezva uye sematanda anodzinga?
Chinokosha ndechekudzosera ikozvino ichienda kuburikidza ne electromagnet. Kana ikozvino inoyerera kuburikidza neyekuitisa coil mune imwe nzira, kuchamhembe nekumaodzanyemba mapango anogadzirwa.
Panochinjwa gwara remhepo, mapango anochinjika saka changa chiri danda rekumaodzanyemba pari zvino rava danda rezasi uye zvimwewo. Mufananidzo 1 unopa mufananidzo wekutanga wekuti izvi zvinoshanda sei. Mumufananidzo 2, mufananidzo uri kuruboshwe unoratidza mamiriro apo matanda e rotor magnets ari kukwezvwa kune akatarisana nematanda e stator. Matanda e rotor, ayo akasungirirwa kumotokari shaft, achatenderera kusvikira apindirana nemapuranga akatarisana e stator. Kana zvese zvikaramba zvakafanana rotor yaibva yaramba yakamira.
Mufananidzo uri kurudyi mumufananidzo 2 unoratidza kuti mapango e stator akapetuka sei. Izvi zvaizoitika pese apo rotor pole yakabatwa neakatarisana ne stator pole nekudzoreredza kuyerera kwazvino kuburikidza neiyo chaiyo stator nzvimbo. Kuramba kutenderedzwa kwematanda e stator kunogadzira mamiriro ekuti magineti echigarire matanda e rotor anogara "achidzingirira" kupesana kwawo kwe stator izvo zvinoguma nekutenderera kunoramba kuripo kwe rotor / mota shaft.
Kutenderedzwa kwemapango e stator kunozivikanwa se commutation. Tsanangudzo yakarongeka yekufamba ndeye "Chiito chekufambisa mafungu kune akakodzera mota nhanho kuti ibudise yakakwana mota torque uye mota shaft kutenderera". Ko mafungu anofambiswa sei panguva yakakodzera kuchengetedza shaft kutenderera?
Kutungamira kunoitwa neinverter kana dhiraivha iri kugonesa mota. Kana dhiraivha iri kushandiswa neimwe mota iyo offset angle inoonekwa mudhiraivha software pamwe nezvimwe zvinhu zvakaita semotor inductance, kuramba, uye mamwe ma paramita. Chigadzirwa chemhinduro chinoshandiswa pamota (encoder, solver, nezvimwewo ..) inopa chinzvimbo che rotor shaft/magnetic pole kudhiraivha.
Kana iyo magnetic pole nzvimbo ye rotor inofananidzwa nekona yekubvisa, dhiraivha ichashandura ikozvino ichienda kuburikidza ne stator coil nokudaro ichishandura stator pole kubva kuchamhembe kusvika kumaodzanyemba uye kubva kumaodzanyemba kusvika kuchamhembe sezvinoratidzwa mumufananidzo 2. Kubva pane izvi unogona kuona kuti kurega matanda akarongeka achamisa motokari shaft kutenderera, kana kushandura kutevedzana kuchawana shaft inotenderera mune imwe nzira vs.
