Pūnaha whakahaere tere motuka AC servo

Dc servo motor servo motor i roto i te nc feed servo system i whakamahia nuitia, he pai te tere me nga ahuatanga taikaha, engari ko tona hanganga matatini, he utu nui o te hanga, he nui te rahi, he ngawari ki te kakahu me te haehae, te commutator e whakaputa korakora, te kaha o te motopaika dc servo me te whakamahi i nga waa kua herea. Ac servo nekeneke kahore paraihe me te commutator me ētahi atu koha hanganga; Na ko te momo hou o te taputapu whakawhiti hiko, te arahiko whakauru-a-tono, te whakawhanaketanga o te hangarau rorohiko me te algorithm mana whakahaere me etahi atu, hei whakatairanga i te whanaketanga o te ara iahiko puku ac, ka taea e te whakaritenga tere o te taraiwa ac servo te urutau ki nga whakaritenga o te punaha servo kai taputapu miihini nc. Ko nga taputapu miihini nc o enei ra ka peia e te ac servo, ac servo drive hei whakakapi i te puku dc servo. 1. Ko te hanganga o te ac servo motor ac motor me te ac induction motor me te ac synchronous motor. He ngawari te hanganga, te kaha nui, te utu iti, te nuinga o te whakamahi i nga nekehanga papamuri o te motuka taraiwa. Ko te nekeneke ac servo tukutahi aukume tuturu ka whakamahia hei neke motika motika whangai, ka whakaatuhia tona hanganga i te ahua 1. Ko te motini ko te stator me te rotor me te huānga kimi. Ko te stator e te pereti takai, ko tona ahua he polygon, kahore he turanga, na e pai ana ki te tohanga wera. Kua mau ki roto i te niho stator he hautaka toru-wahanga awhiowhio. Rotor i te pereti takai, a i roto i nei kua rite rawa ki te aukume pūmau, logarithmic me stator pou o te taurite. Ko nga aukume tuturu ko: alnico, ferrite me te whenua onge te aukume tuturu ndfeb koranu, ko te koranu me te koranu aukume tuturu o te whenua te pai rawa atu. Te kimi huānga me te encoder pulse, ka taea hoki te whakamahi i te tachogenerator hurihuri hurihuri, whakamahia ki te kite i te waahi kokonga, te nekehanga me te tere hurihuri o te motuka, kia taea ai te tino tuunga o te aukume tuturu tukutahi ac motini rotor korero tuunga, urupare me te nui o te urupare tere. 2. Ac servo motopaika mana auau o ac motopaika tere n, tino taukorikori p ki te ac kaha auau f, te motini me te hononga i waenga i te tere tere whakawhiti s (1)Mo te nekeneke tukutahi s≠ S = 0, 0, mo te motuka tukutahi. Ma te momo (1), huri i te auau hiko f, ka huri te tere motopaika hei wahanga tika o n me te f. Ko te hiko hiko o te hiko o te hiko o E = 4. 44 fwkwΦMena ka waiho e koe te maturuturunga o te ngaohiko impedance stator, te ngaohiko wahanga stator U≈ E = 4。 44 fwkwΦI te momo, he rite tonu te kw, ki te kore te huringa o te wahanga ngaohiko U, na me te piki o te auau f, te rere o te hau & Phi; Ka heke. A ka kitea mai i te wharite taipana, & Phi; Ka heke te uara, ka heke iho ano te I2 o naianei i roto i te rotor, ka kore e kore ka heke iho te taipana putanga o te motuka M. I tua atu, ki te te ngaohiko wāhanga U te taua, ki te hekenga o te f, hau āputa autō rere & Phi; Ka piki ake, ka puta te whakamaarama o te ara iahiko autō, te pikinga o te whakaihiihi o naianei ka mate te rino, te take hiko. Na huri i te tere o te auau f, me huri i te ngaohiko wahanga stator U i te wa ano, kia mau tonu ai & Phi; He tata te uara ki te rite, kia rite tonu te M. Ko te mana o te tere motuka ac servo e kitea ana ko te raru nui ki te whiwhi i te huringa auau o te kaiwhakarite ngaohiko hiko ac. He maha nga momo puna FM. I te nuinga o te wa ko te whakawhitiwhiti korero -Dc -Communication huri iahiko, ko te ara iahiko o nga waahanga e toru ko te waahanga nui o te inverter. E whakaatuhia ana i te ahua 2 ko te momo whakawhiti hiko ngaohiko (GTR)Toro-waahanga inverter matua hoahoa ara iahiko matua. Na te ac -Diode rectifier circuit dc huri ki te whiwhi i te ngaohiko dc tonu Ud, te mana transistor whakawhiti huānga T1, T4, T3, T6, T5, T2 o toru-waahanga PWM inverter, te kaha C kei te ngana ki te pupuri i te whakaurunga dc ngaohiko inverter Ud hei uara tonu, no reira, ka kiia tenei raina ko te momo momo hiko. Inverter whakawhiti huānga T1, T2, T3 Kei te whakahaeretia e te ngaru tapatoru 1 ka hangaia kia rite ki nga whakaritenga o te mana whakahaere tere he etahi auau me te ngaohiko kaha tīwera o te ngaru sine 2, na roto i te whakatairite o te ngaru 1 me te 2 ki te whakaputa tonu, 3, inerite me te whanuitanga o te pupuhi tapawhā rite te whakahaere i nga tohu mana i runga-atu. Ko te kupu riro toru ngā rōpū i roto i te putanga o te inverter ki te 3 rite te ahua o te ngaru porowhita, te ngaru i roto i te nekeneke puku, tona mahi he rite ki te 4 toru-wahanga ngaohiko sine. Mai i te korero i runga ake nei, ko te inverter te mea matua ki te mohio ki te hurihanga auau e whakarite ana i te mutunga o te mana inverter te whakatutuki i te ngaru mana e hiahiatia ana 3. Ko te whakatinanatanga o nga tikanga whakahaere ngaru (Ko te aratau tere motika), kua whakamahia inaianei e te mana huringa vector. Ko te ahua 3 he tauira o te hoahoa ac servo mana whakahaere, e rua nga waahanga o te punaha, te kaitahuri hiko me te papa whakahaere. Kaitahuri hiko me te whakauru o te kaiwhakatika me te hurihuri, ko te mahi a te kaiwhakatika ko te whakaurunga o te naianei tauutuutu toru-waahanga ki roto tika (dc), penei i te ahua 3 maui o runga; Inverter he ki te tika nāianei (dc) ki hiahiatia rite ki te whakaritenga o te tohu mana o te toru-wahanga tauutuutu nāianei (ac), inaianei maha WHAKAMAHI te momo hou o te mahi teitei inverter whakawhiti auau teitei kōwae mana teitei IPM, rite whakaaturia i roto i te ahua 3 runga. Ko te papa whakahaere i runga i nga taputapu o te kaupapa o DSP + FPGA e whakaatuhia ana i te ahua 3 e whakaatuhia ana i te waahanga o raro. Ko te FPGA (Field programmable gate array)Pūrere me DSP (Digital signal processor)'s main function is, together with the software implementation of all controls the task scheduled, the processing of input and output signal, the inverter control control generation, and other control functions, etc. Single-chip microcomputer AT89C52 ki te ite i te Tautuhinga mamati whakaatu ngongo, papapātuhi, me te whakamahi i te tawhā rangatū o te whakaaturanga tauranga o te rangatū, papapātuhi. He iti te mokowā, he mahi āmiki o ia kōwae, i konei karekau e kōrerohia.