Kufamba kwepasi pedanho kunofanira kunge kuri kunze kwedanho, kana kurova kwemoyo kwakapotsa hakufambi panzvimbo yakatarwa. Kufamba kwepasi pedanho kunofanira kunge kwakasiyana nekubuda kwedanho, zvichipfuura nzvimbo yakatarwa.
Mota dzematanhoZvinowanzo shandiswa mumasisitimu ekudzora mafambiro uko kudzora kuri nyore kana kuti panodiwa mutengo wakaderera. Chinhu chikuru ndechekuti nzvimbo nekumhanya zvinodzorwa nenzira yakavhurika. Asi nekuda kwekuti inodzora yakavhurika, nzvimbo yekutakura haina mhinduro kune iyo control loop, uye mota yestepper inofanira kupindura nemazvo kune imwe neimwe excitation change. Kana excitation frequency isina kusarudzwa nemazvo, mota yestepper haizokwanisi kufamba kuenda kunzvimbo itsva. Nzvimbo chaiyo yemutoro inoita kunge iri mukukanganisa kwechigarire kana tichienzanisa nenzvimbo inotarisirwa nemutongi, kureva kuti, chiitiko chisiri chedanho kana overshoot chinofungidzirwa. Naizvozvo, mu stepper motor open-loop control system, maitiro ekudzivirira kurasikirwa kwe step and overshoot ndiyo kiyi yekushanda kwakajairika kwe open-loop control system.
Zviitiko zvisina kufanira uye zvakawandisa zvinoitika kanamota yekutsikainotanga uye inomira, zvichiteerana. Kazhinji, muganho wekutanga kwesystem frequency wakaderera, nepo kumhanya kunodiwa kwekushanda kuchiwanzo kwira. Kana system ikatangwa zvakananga pakumhanya kunodiwa, nekuti kumhanya kwapfuura muganho, frequency yekutanga uye haigone kutanga nemazvo, kutanga nedanho rakarasika, heavy haigoni kutanga zvachose, zvichikonzera kutenderera kwakavharika. Mushure mekunge system yatanga, kana poindi yekupedzisira yasvika ipapo rega kutumira mapulse, zvekuti inomira ipapo ipapo, saka nekuda kwekusashanda zvakanaka kwesystem, mota yestepper ichatenderedza nzvimbo yebalance inodiwa necontroller.
Kuti tikunde dambudziko rekubuda munhanho nekuwedzera simba, tinofanira kuwedzera simba rekumhanya nekudzikamisa simba. Kazhinji tinoshandisa: kadhi rekudzora kufamba kweyuniti yekudzora yepamusoro, PLC ine mabasa ekudzora eyuniti yekudzora yepamusoro, microcontroller yeyuniti yekudzora yepamusoro yekudzora simba rekudzora nekudzikamisa simba, inogona kukunda dambudziko rekurasikirwa nedanho repamusoro.
Mumashoko evanhuwo zvavo: kana mutyairi westepper akagamuchira chiratidzo chekurova kwemoyo, anotyairamota yekutsikakutendeudza kona yakatarwa (uye kona yedanho) munzira yakatarwa. Unogona kudzora huwandu hwemapulse kuti utonge huwandu hwekufamba kwemakona, kuitira kuti uwane chinangwa chekuisa nzvimbo chaiyo; panguva imwe chete, unogona kudzora frequency yepulse kuti utonge kumhanya uye kukurumidza kwekutenderera kwemota, kuitira kuti uwane chinangwa chekudzora kumhanya. Stepper motor ine parameter yehunyanzvi: frequency yekutanga isina mutoro, kureva kuti, frequency yestepper kana isina mutoro inogona kutanga zvakajairika. Kana frequency yepulse yakakwira kupfuura frequency yekutanga isina mutoro, stepper motor haigone kutanga nemazvo, inogona kurasikirwa nematanho kana chiitiko chekuvharira. Kana paine mutoro, frequency yekutanga inofanira kunge yakaderera. Kana mota ichizotenderera nekumhanya kwakanyanya, frequency yepulse inofanira kunge iine maitiro ekumhanyisa akakodzera, kureva kuti, frequency yekutanga yakaderera uye yozokwira kusvika kune frequency yaunoda yepamusoro pane imwe acceleration (speed yemota inokwira kubva pasi kuenda kumusoro).
Kuwanda kwekutanga = kumhanya kwekutanga × matanho mangani pakuchinjana.Kumhanya kwekutanga kusina mutoro ndiyo mota yestepper isina kukurumidza kana kudzikira pasina mutoro inotenderera zvakananga kumusoro. Kana mota yestepper ichitenderera, inductance yechikamu chimwe nechimwe chekutenderera kwemota ichagadzira reverse electric potential; kana frequency yakakwira, reverse electric potential yakakura. Pasi pekushanda kwayo, mota ine frequency (kana kumhanya) inowedzera uye phase current inoderera, izvo zvinotungamira kudzikira kwetorque.
Ngatitii: huwandu hwese hwesimba remuchina wekuderedza simba iT1, kumhanya kwesimba iN1, chiyero chekuderedza simba i5:1, uye kona yekukwira yemota yestepper iA. Zvadaro kumhanya kwemota i: 5*(N1), ipapo simba resimba remota rinofanira kuva (T1)/5, uye frequency yekushanda kwemota inofanira kuva
5*(N1)*360/A, saka unofanira kutarisa moment-frequency characteristic curve: iyo coordinate point [(T1)/5, 5*(N1)*360/A] haisi pasi pe frequency characteristic curve (starting moment-frequency curve). Kana iri pasi pe moment-frequency curve, unogona kusarudza mota iyi. Kana iri pamusoro pe moment-frequency curve, saka, haugone kusarudza mota iyi nekuti ichatadza kutsika, kana kusatendeuka zvachose.
Unosarudza mamiriro ekushanda here, unoda kumhanya kwakanyanya kwakatarwa, kana kwakatarwa, saka unogona kuverenga zvichienderana nefomura yakapihwa pamusoro, (zvichienderana nekumhanya kwakanyanya kwekutenderera, uye saizi yemutoro, unogona kuona kana mota yestepper yaunosarudza ikozvino yakakodzera, kana isiriyo unofanirawo kuziva kuti ndeipi mota yestepper yekusarudza).
Pamusoro pezvo, mota yestepper pakutanga mushure mekutakurwa inogona kusachinja, uye yobva yawedzera frequency, nekutimota yekutsikaCurve yefrequency yenguva inofanira kunge iine mbiri, une iyo inofanira kunge iri curve yefrequency yenguva yekutanga, uye imwe iri kunze kwecurve yefrequency yenguva, curve iyi inomiririra zvinoreva: tanga mota pakutanga frequency, mushure mekupedzwa kwekutanga kunogona kuwedzera mutoro, asi mota haizorasikirwe nedanho redanho; kana Tanga mota pakutanga frequency, kana mutoro uchienderera mberi, unogona kuwedzera kumhanya kwekumhanya zvakakodzera, asi mota haizorasikirwe nedanho redanho.
Zviri pamusoro apa ndezvekutanga kwemota yestepper inomhanya zvakanyanya uye inokwira zvakanyanya.
Kana muchida kutaurirana uye kushanda pamwe nesu, ndapota inzwa wakasununguka kutibata!
Tinoshanda pamwe chete nevatengi vedu, tichiteerera zvavanoda uye tichiita zvavanokumbira. Tinotenda kuti kudyidzana pakati pevatengi kunobva pamhando yezvigadzirwa uye sevhisi yevatengi.
Nguva yekutumira: Kubvumbi-03-2023