Ithiyori esisiseko yokusebenza kwee-brushless servo motors ijikeleza kwimigaqo yemagnethi apho iipali zigxotha kunye neepali ezichaseneyo zitsala. Kukho imithombo emibini yemagnethi efunyenwe ngaphakathi kwe-servo motor: Iimagnethi ezisisigxina ezihlala zibekwe kwirotha yemoto, kunye nemagnethi yombane emileyo ejikeleze i-rotor. I-electromagnetic ibizwa ngokuba yi-stator okanye i-motor winding kwaye yenziwe ngeepleyiti zentsimbi ezibizwa ngokuba zii-laminations, ezidityaniswe kunye. Iipleyiti zentsimbi zidla ngokuba "namazinyo" avumela ucingo lobhedu ukuba luboshwe ngeenxa zonke kubo.
Ukubuyela kwimigaqo ye-magnetism, xa umqhubi ofana nocingo lobhedu lwenziwa kwikhoyili, kwaye umqhubi unikwe amandla ukuze umbane ujikeleze kuyo, intsimi yamagnetic yenziwe.
Le ntsimi yamagnetic eyenziwe ngokudlula ngoku kwi-conductor iya kuba ne-pali esenyakatho kunye ne-pali yasezantsi. Ngeepali zemagneti ezibekwe kwi-stator (xa inamandla) kunye neemagnethi ezisisigxina ze-rotor, ungayenza njani imeko yeepali ezichaseneyo ezikhangayo kwaye njengezibonda ezigxotha?
Isitshixo kukubuyisela umva yangoku ehamba nge-electromagnetic. Xa ikhoyo ngoku ihamba ngekhoyili eqhubayo kwicala elinye, izibonda ezisenyakatho nasezantsi zidalwe.
Xa isalathiso somsinga sitshintshiwe, iipali ziyajikwa ukuze into ebiyipali esemantla ngoku ibe yipali esemazantsi kwaye ngokuphambeneyo. Umzobo 1 ubonelela ngomfanekiso osisiseko wendlela oku kusebenza ngayo. Kumfanekiso wesi-2, umfanekiso ngakwesobunxele ubonisa imeko apho izibonda zemagnethi ze-rotor zikhangwa kwiipali ezichasene ne-stator. Izibonda ze-rotor, ezifakwe kwi-motor shaft, ziya kujikeleza de zihambelane nezibonda ezichasene ne-stator. Ukuba zonke bezihlala zifana irotor iya kuhlala imile.
Umfanekiso osekunene kumfanekiso wesi-2 ubonisa indlela iipali ze-stator eziye zajika ngayo. Oku kuya kwenzeka ngalo lonke ixesha i-rotor pole ibanjwe kunye ne-stator pole echaseneyo ngokuguqula ukuhamba kwangoku kuloo ndawo ye-stator. Ukuguqulwa okuqhubekayo kweepali ze-stator kudala imeko apho izibonda zemagnethi ezisisigxina ze-rotor zihlala "zixosha" izichasi zabo ze-stator ezibangela ukujikeleza okuqhubekayo kwe-rotor / motor shaft.
Ukujikeleziswa kweepali zestator kwaziwa njengokuhamba. Inkcazo esesikweni yoguqulo ithi "Isenzo sokuqhuba imisinga ukuya kwizigaba ezifanelekileyo zeemoto ukuze kuveliswe eyona torque yemoto kunye nokujikeleza kwe-motor shaft". Ingaba imisinga ilawulwa njani ngexesha elifanelekileyo ukugcina ukujikeleza kweshaft?
Ukuqhuba kwenziwa yi-inverter okanye idrayivu enika amandla i-motor. Xa i-drive isetyenziswa ngemoto ethile i-angle ye-offset ichongiwe kwisoftware yokuqhuba kunye nezinye izinto ezinje nge-motor inductance, ukumelana, kunye nezinye iiparamitha. Isixhobo sempendulo esisetyenziswa kwi-motor (i-encoder, i-solventer, njl ..) inika indawo ye-rotor shaft / i-magnetic pole kwi-drive.
Xa indawo yepoli yamagnetic ye-rotor ihambelana ne-angle ye-offset, i-drive iya kuguqula i-current ehamba nge-coil ye-stator ngaloo ndlela iguqula i-stator pole ukusuka kumntla ukuya kumzantsi kwaye ukusuka kumzantsi ukuya emantla njengoko kubonisiwe kwi-Figure 2. Ukususela kule nto unokubona ukuba ukuvumela izibonda zilungelelanise ziya kumisa ukujikeleza kwe-shaft ye-motor, okanye ukutshintsha ulandelelwano kuya kufumana i-shaft spinning kwelinye icala vs. enye, kwaye ukuyitshintsha ngokukhawuleza ivumela ukujikeleza kwe-high-speed okanye okuchaseneyo ukujikeleza okucothayo.
