Isishwankathelo solwazi lwe-Servo motor

Igama elithi servo livela kwigama lesiGrike elithi slave. "Servo motor" linokuqondwa njengemoto ethobela ngokupheleleyo umyalelo wesignali yokulawula. Xa isignali yokulawula ithunyelwa, i-rotor iqengqeleka ngoko nangoko. Xa isignali yokulawula inyamalala, i-rotor inokuyeka ukusebenza ngoko nangoko.

I-Servo motor yi-micro-motor esetyenziswa njengesixhobo sokulawula ngokuzenzekelayo. Umsebenzi wayo kukuguqula imiqondiso yombane ibe yi-angular displacement okanye i-angular velocity ye-rotary shaft.

Imoto yeServo yahlulwe yaba ziintlobo ezimbini ze-ac servo kunye ne-dc servo

Ulwakhiwo olusisiseko lwemoto ye-ac servo lufana nemoto ye-ac induction. Kukho ii-windings ezimbini ze-excitation Wf kunye nee-windings zokulawula i-WcoWf ezine-phase space displacement ye-90° kwi-stator, edibene ne-ac voltage engaguqukiyo. Injongo yokulawula ukusebenza kwemoto ifezekiswa ngokusebenzisa utshintsho lwe-ac voltage okanye isigaba esisetyenziswa kwi-Wc. Imoto ye-servo ye-Ac ineempawu zokusebenza kakuhle, ukulawula kakuhle, impendulo ekhawulezayo, ubuchule obuphezulu kunye ne-index engqongqo ye-nonlinear yeempawu zoomatshini kunye neempawu zokulungisa (ngaphantsi kwe-10% ~ 15% kwaye ngaphantsi kwe-15% ~ 25%, ngokulandelanayo).

Ulwakhiwo olusisiseko lwemoto ye-dc servo lufana nolwemoto ye-dc. Isantya semoto n = E/K1j = (Ua - IaRa)/K1j, uhlobo lwe-E lwamandla e-armature counter electromotive force, i-K iyinto eqhubekayo, i-j nge-pole flux, i-Ua, i-Ia ye-armature voltage kunye nomsinga we-armature, i-Ra njengokumelana kwe-armature, utshintsho lwe-Ua okanye i-phi, inokulawula isantya seengcinga zombane ze-dc servo, kodwa ngokubanzi isebenzisa indlela yokulawula i-armature voltage, icinga ngombane kwi-servo yemagnethi esisigxina ye-dc magnet, i-excitation winding ithathelwa indawo yimagnethi esisigxina, i-magnetic flux phi iyinto eqhubekayo. Imoto ye-Dc servo inomgaqo olungileyo we-linear kunye nempendulo yexesha elikhawulezayo.

Iingenelo kunye nokungalungi kwemoto ye-dc servo

Iingenelo: ulawulo lwesantya oluchanekileyo, iimpawu zesantya se-torque zinzima kakhulu, umgaqo wolawulo olulula, kulula ukuyisebenzisa, ixabiso eliphantsi.

Iingxaki: ukubuyisa ibrashi, ukunciphisa isantya, ukumelana okongezelelekileyo, amasuntswana arhabaxa (indawo engenaluthuli kwaye eqhumayo ayifanelekanga)

Iingenelo kunye nokungalungi kwemoto ye-ac servo

Amandla: iimpawu ezilungileyo zokulawula isantya, kuluhlu lonke lwesantya zinokulawula ngokutyibilikayo, phantse akukho ntshukumo, ngaphezulu kwe-90% yokusebenza okuphezulu, umkhuhlane omncinci, ulawulo oluphezulu, ukuchaneka kokulawula indawo (kuxhomekeke kwi-encoder), indawo yokusebenza elinganisiweyo, zinokulawula i-torque engaguqukiyo, umzuzu we-inertia uphantsi, ingxolo ephantsi, akukho kunxitywa kwebrashi, ukulungiswa kwasimahla (kwindawo engenaluthuli, enokuqhuma)

Iingxaki: ulawulo luyinkimbinkimbi ngakumbi, iiparameter zomqhubi kufuneka zilungiswe kwangoko ukuze kuchongwe iiparameter ze-PID, kwaye kufuneka iingcingo ezingaphezulu.

Imoto ye-servo ye-Dc yahlulwe yaba yimoto yebrashi kunye nemoto engenabhrashi.

Ixabiso lemoto yebhrashi liphantsi, ulwakhiwo lulula, i-torque yokuqala inkulu, uluhlu lwesantya lubanzi, ulawulo lulula, kufuneka lugcinwe, kodwa lugcine inzuzo (yebhrashi yekhabhoni), ukuveliswa kokuphazamiseka kwe-electromagnetic, ukusetyenziswa kwendalo kuneemfuno, ngokuqhelekileyo kusetyenziselwa amashishini aqhelekileyo kunye nemicimbi yoluntu enobuzaza.

Imoto engenabhrashi ilula kakhulu, impendulo enkulu ngokukhawuleza, isantya esiphezulu incinci, i-torque ayiqengqeleki kakuhle, ilawula izinto ezintsonkothileyo, ikrelekrele, itshintshiselwano lwesigaba se-elektroniki luguquguqukayo, itshintshiselwano lwesigaba samaza esikwere okanye esine-sine, ayigcinwanga kakuhle, igcina amandla ngokufanelekileyo, imitha ye-electromagnetic incinci, inyuse ubushushu obuphantsi ubomi obude, ifanelekile kwiindawo ezahlukeneyo.

Imoto ye-Ac servo nayo yimoto engenamabhrashi, yahlulwe yaba yimoto ehambelanayo nengangqamananga, ulawulo lwentshukumo lwangoku lusetyenziswa ngokubanzi njengemoto ehambelanayo, uluhlu lwamandla ayo, amandla anokuba makhulu kakhulu, i-inertia enkulu, isantya esiphezulu siphantsi, isantya ngokwanda kwamandla kunye nokwehla okufanayo, kufanelekile kwizihlandlo zokusebenza ezigudileyo ngesantya esiphantsi.

Ingaphakathi le-rotor ye-servo motor yimagnethi esisigxina, ulawulo lwe-electric drive olunezigaba ezintathu lwe-U/V/W lwenza intsimi ye-electromagnetic, phantsi kwesenzo se-rotor eqengqelekayo kweli candelo, kwangaxeshanye, i-motor enesignali yempendulo ye-encoder kwi-drive, ixabiso lempendulo lithelekiswa nethagethi, ukuze kulungiswe i-Angle ye-rotor eqengqelekayo, ukuchaneka kwe-servo motor kumiselwa kukuchaneka kwe-encoder (inombolo yomgca).

Yintoni i-servo motor? Zingaphi iintlobo ezikhoyo? Zithini iimpawu zomsebenzi?

Impendulo: Ingcamango yombane ye-servo eyaziwa ngokuba yingcamango yombane elawulayo, kwinkqubo yolawulo oluzenzekelayo isetyenziswa njenge-element elawulayo, isignali yombane efunyenweyo kwi-axis yengcamango yombane i-angular displacement okanye i-angular speed output.