Kunze-kwenhanho kunofanirwa kunge kuri kupotsa kupuruzira hakufambire kune yakatarwa chinzvimbo. Overshoot inofanira kunge yakapesana nekunze-kwe-nhanho, ichifamba kupfuura iyo yakatarwa chinzvimbo.
Stepper motorsanowanzo shandiswa mumafambiro ekudzora masisitimu uko kutonga kuri nyore kana uko mutengo wakaderera unodiwa. Kubatsira kukuru ndeyekuti chinzvimbo uye kumhanya zvinodzorwa nenzira yakavhurika-loop. Asi chaizvo nekuti yakavhurika-loop control, iyo nzvimbo yekuremedza haina mhinduro kune yekudzora loop, uye inotsika mota inofanirwa kupindura nemazvo kune yega yega shanduko yekunakidzwa. Kana iyo yekuwedzeredza frequency isina kusarudzwa nenzira kwayo, iyo stepper mota haizokwanise kuenda kunzvimbo itsva. Nzvimbo chaiyo yemutoro inoratidzika kunge iri mukukanganisa kwechigarire maererano nechinzvimbo chinotarisirwa nemutungamiriri, kureva, chiitiko chekunze-chenhanho kana kuti overshoot inofungidzirwa. Naizvozvo, mune inotsika mota yakavhurika-loop control system, maitiro ekudzivirira kurasikirwa kwenhanho uye overshoot ndiyo kiyi kune yakajairika mashandiro eiyo yakavhurika-loop control system.
Kunze-kwe-nhanho uye overshoot zviitiko zvinoitika kana iyostepper motorinotanga nekumira, zvichiteerana. Kazhinji, muganho weiyo system yekutanga frequency yakaderera, nepo inodiwa yekushanda kumhanya inowanzove yakakwira. Kana iyo system yakatangwa zvakananga pane inodiwa kumhanya kumhanya, nekuti kumhanya kwakapfuura muganhu, iyo yekutanga frequency uye haigone kutangwa zvakanaka, kutanga nedanho rakarasika, rinorema haringatangi zvachose, zvichikonzera kuvharika kutenderera. Mushure mekunge sisitimu ichimhanya, kana iyo yekupedzisira yasvika pakarepo mira kutumira pulses, zvekuti inomira nekukasira, ipapo nekuda kweiyo inertia yehurongwa, iyo stepper mota inoshandura pamusoro peiyo chiyero chinzvimbo chinodiwa nemutongi.
Kuti ukunde kusimuka kubva nhanho uye overshoot chiitiko, inofanira kuwedzerwa kune kutanga-kumisa kwakakodzera kumhanyisa uye kudzikisa kudzora. Isu tinowanzo shandisa: kadhi rekudzora kadhi rekumusoro control unit, PLC ine mabasa ekutonga eiyo yepamusoro control unit, microcontroller yekumusoro control unit kudzora kukurumidza kwekufamba uye kudzikisira kunogona kukunda chiitiko chekurasika nhanho overshoot.
Mukutaura kwevanhu: kana mutyairi we stepper agamuchira chiratidzo chekurova, inotyaira iyostepper motorkushandura kona yakatarwa (uye nhanho kona) munzira yakatarwa. Iwe unogona kudzora huwandu hwemapulses kudzora huwandu hweangular displacement, kuitira kuti uwane chinangwa chechokwadi chinzvimbo; panguva imwecheteyo, iwe unogona kudzora iyo pulse frequency kudzora kumhanya uye kukurumidza kwemota kutenderera, kuitira kuti uwane chinangwa chekumhanyisa mutemo. Stepper mota ine tekinoroji parameter: hapana-mutoro kutanga frequency, kureva kuti, iyo inotsika mota mune yekusina-mutoro pulse frequency inogona kutanga zvakajairika. Kana iyo pulse frequency yakakwira kupfuura iyo isina-mutoro yekutanga frequency, iyo stepper mota haigone kutanga nemazvo, inogona kuitika kurasikirwa nenhanho kana kuvhara chiitiko. Muchiitiko chemutoro, nguva yekutanga inofanira kunge yakaderera. Kana iyo mota ichitenderera ichimhanya zvakanyanya, iyo pulse frequency inofanirwa kunge iine zvine musoro kumhanyisa maitiro, kureva, iyo yekutanga frequency yakaderera uye yobva yakwira kusvika kune yaidiwa yakakwirira frequency pane kumwe kukwidziridzwa (motor kumhanya ramps kubva pasi kusvika kumusoro kumhanya).
Kutanga frequency = kutanga kumhanya × manhanho mangani pakuchinja.Hapana-mutoro wekutanga kumhanya ndiyo inotsika mota isina kukwidziridza kana kudzikisira pasina mutoro wakananga kutenderera kumusoro. Kana iyo stepper mota ichitenderera, inductance yechikamu chega chega chemotor winding inoumba reverse magetsi anogona; iyo yakakwirira frequency, iyo yakakura reverse magetsi anogona. Pasi pechiito chayo, mota ine frequency (kana kumhanya) inowedzera uye chikamu chazvino chinodzikira, izvo zvinotungamira mukuderera kwe torque.
Ngatimbotii: iyo yakazara torque yeinodzikisa ndeye T1, iyo yekubuda kumhanya iN1, iyo yekudzikisa reshiyo i5: 1, uye kona yekutsika kweiyo stepper mota ndeye A. Ipapo iyo mota yekumhanya ndeye: 5 * (N1), ipapo torque yekubuda yemota inofanira kunge iri (T1) / 5, uye frequency yekushandisa yemota inofanirwa kunge iri.
5*(N1)*360/A, saka unofanira kutarisa nguva-frequency characteristic curve: iyo coordination point [(T1)/5, 5*(N1)*360/A] haisi pazasi pefrequency characteristic curve (kutanga nguva-frequency curve). Kana iri pazasi penguva-frequency curve, unogona kusarudza mota iyi. Kana iri pamusoro penguva-frequency curve, saka, haugone kusarudza mota iyi nekuti ichapotsa-nhanho, kana kusatendeuka zvachose.
Iwe unotarisisa mamiriro ekushanda, iwe unoda iyo yakanyanya kumhanya yakatemwa, kana yakatemwa, ipapo iwe unogona kuverenga zvinoenderana neformula yakapihwa pamusoro, (zvichienderana nehupamhi hwekutenderera, uye saizi yemutoro, unogona kuona kana iyo stepper mota yaunosarudza ikozvino yakakodzera, kana isiri iyo iwe unofanirwa kuzivawo rudzi rwechitsiko mota yekusarudza).
Mukuwedzera, iyo stepper mota mukutanga mushure mekuremerwa inogona kusachinjika, uye wobva wawedzera frequency, nekuti iyostepper motorchinguva frequency curve inofanira kunge iine mbiri, iwe unayo iyo inofanira kunge iri yekutanga nguva frequency curve, uye imwe yacho iri kure nekanguva frequency curve, curve iyi inomiririra zvinoreva: tanga mota panguva yekutanga frequency, mushure mekupedzwa kwekutanga kunogona kuwedzera mutoro, asi mota haizorasikirwe nhanho mamiriro; kana Tanga mota pane yekutanga frequency, kana iri yekugara kuremerwa, unogona zvakakodzera kuwedzera kumhanya kwekumhanya, asi mota haizorasikirwe nhanho.
Izvo zviri pamusoro ndiko kuiswa kwe stepper mota kunze-kwe-nhanho uye overshoot.
Kana iwe uchida kutaurirana uye kushanda nesu, ndapota inzwa wakasununguka kutibata nesu!
Isu tinodyidzana zvakanyanya nevatengi vedu, tichiteerera kune zvavanoda uye kuita pane zvavanokumbira. Isu tinotenda kuti kuhwina-kuhwina kudyidzana kwakavakirwa pamhando yechigadzirwa uye sevhisi yevatengi.
Nguva yekutumira: Kubvumbi-03-2023