I-out-of-step kufuneka ibe yi-pulse ephosiweyo ayihambi kwindawo echaziweyo. I-Overshoot kufuneka ichasene ne-out-of-step, ihamba ngaphaya kwendawo echaziweyo.
Iinjini zeStepperzidla ngokusetyenziswa kwiinkqubo zolawulo lwentshukumo apho ulawulo lulula okanye apho kufuneka ixabiso eliphantsi. Inzuzo enkulu kukuba indawo kunye nesantya zilawulwa ngendlela evulekileyo. Kodwa ngokuchanekileyo ngenxa yokuba i-open-loop control, indawo yomthwalo ayinayo impendulo kwi-loop yokulawula, kwaye i-motor stepper kufuneka iphendule ngokuchanekileyo kwinguqu nganye yokuvuselela. Ukuba i-frequency excitation ayikhethwanga ngokuchanekileyo, i-motor stepper ayiyi kukwazi ukuya kwindawo entsha. Indawo yokwenene yomthwalo ibonakala ikwimpazamo esisigxina ngokumalunga nendawo elindelwe ngumlawuli, oko kukuthi, into engaphandle kwenyathelo okanye i-overshoot icingelwa. Ke ngoko, kwinkqubo yokulawula i-loop evulekileyo ye-stepper motor, indlela yokuthintela ukulahleka kwenyathelo kunye ne-overshoot sisitshixo sokusebenza okuqhelekileyo kwenkqubo yokulawula i-open-loop.
Iziganeko ezingaphandle kwenyathelo kunye ne-overshoot zenzeka xa ii-motor ye-stepperiqala kwaye iyeke, ngokulandelelanayo. Ngokubanzi, umda wenkqubo yokuqalisa rhoqo uphantsi, ngelixa isantya sokusebenza esifunekayo sihlala siphezulu. Ukuba inkqubo iqalwe ngokuthe ngqo kwisantya esifunekayo sokuhamba, kuba isantya sigqithise umda, i-frequency yokuqala kwaye ayikwazi ukuqaliswa ngokufanelekileyo, ukuqala ngesinyathelo esilahlekileyo, esinzima asikwazi ukuqala konke, okubangelwa ukujikeleza okuvaliweyo. Emva kokuba inkqubo iqhutywe, ukuba isiphelo sifikelelwe ngokukhawuleza ukuyeka ukuthumela i-pulses, ukwenzela ukuba ime ngokukhawuleza, ngoko ngenxa ye-inertia yenkqubo, i-motor stepper iya kuguqula indawo yokulinganisela efunwa ngumlawuli.
Ukuze unqobe ukuphuma kwesinyathelo kunye ne-overshoot phenomenon, kufuneka yongezwe kwi-start-stop yokukhawuleza ngokufanelekileyo kunye nokulawula ukuhla. Ngokuqhelekileyo sisebenzisa: ikhadi lokulawula ukunyakaza kwiyunithi yokulawula ephezulu, i-PLC kunye nemisebenzi yokulawula iyunithi yokulawula ephezulu, i-microcontroller yeyunithi yokulawula ephezulu yokulawula ukukhawuleza kwentshukumo kunye nokunciphisa kunokunqoba i-phenomenon ye-step step overshoot elahlekileyo.
Kwiimeko zabantu: xa umqhubi we-stepper efumana isignali ye-pulse, iqhuba ii-motor ye-stepperukuguqula i-engile esisigxina (kunye ne-angle yesinyathelo) kwindlela emiselweyo. Unokulawula inani lee-pulses ukulawula ubungakanani be-angular displacement, ukuze ufezekise injongo yokubeka ngokuchanekileyo; Kwangaxeshanye, unokulawula i-pulse frequency ukulawula isantya kunye nokukhawuleza kokujikeleza kwemoto, ukuze ufezekise injongo yolawulo lwesantya. I-Stepper motor ine-parameter yobugcisa: akukho mthwalo wokuqalisa ukuhamba, oko kukuthi, i-motor stepper kwimeko yokungabikho komthwalo we-pulse frequency inokuqala njengesiqhelo. Ukuba i-pulse frequency iphezulu kune-non-load start frequency, i-stepper motor ayikwazi ukuqalisa ngokufanelekileyo, inokwenzeka ukuba ilahlekelwe ngamanyathelo okanye into yokuthintela. Kwimeko yomthwalo, i-frequency yokuqala kufuneka ibe ngaphantsi. Ukuba i-motor izakujikeleza ngesantya esiphezulu, i-pulse frequency kufuneka ibe nenkqubo yokukhawulezisa efanelekileyo, oko kukuthi, i-frequency yokuqala iphantsi kwaye i-ramps ukuya kwi-frequency ephezulu efunekayo kwi-acceleration ethile (i-motor speed ramps phezulu ukusuka ezantsi ukuya kwisantya esiphezulu).
Ukuqala amaza omoya = isantya sokuqala × mangaphi amanyathelo kwirevolution nganye.Isantya sokuqalisa akukho mthwalo sisiteyiphu senjini ngaphandle kokukhawulezisa okanye ukuncipha ngaphandle komthwalo ujikelezisa ngokuthe ngqo phezulu. Xa i-motor stepper ijikeleza, i-inductance yesigaba ngasinye se-motor winding iya kwenza amandla ombane angasemva; Okukhona uphezulu amaza ombane, kokukhona amandla ombane angasemva. Ngaphantsi kwesenzo sayo, i-motor ene-frequency (okanye isantya) iyanda kwaye isigaba sangoku siyancipha, okukhokelela ekunciphiseni kwe-torque.
Masithi: i-torque epheleleyo ye-torque yokunciphisa i-T1, isantya sokuphuma yi-N1, umlinganiselo wokunciphisa ngu-5: 1, kunye ne-angle yokunyuka ye-motor stepper ngu-A. Emva koko isantya semoto sithi: 5 * (N1), ngoko i-torque ye-motor kufuneka ibe (T1) / 5, kunye ne-frequency yokusebenza ye-motor kufuneka ibe
5*(N1)*360/A, ngoko ke kufuneka ujonge igophe lophawu lomzuzu-frequency: indawo yolungelelaniso [(T1)/5, 5*(N1)*360/A] ayikho ngezantsi kwejiko lophawu oluphindaphindayo (ukuqala komzuzu-igophe). Ukuba ingaphantsi kwegophe lomzuzu-frequency, ungakhetha le motor. Ukuba ingaphezulu kwejiko lomzuzwana, ke, awukwazi ukukhetha le moto kuba iyakuphosa inyathelo, okanye ingajiki kwaphela.
Ngaba umisela imeko yokusebenza, ufuna isantya esiphezulu esinqunyiweyo, ukuba sizimisele, ngoko unako ukubala ngokwefomula enikeziweyo ngasentla, (ngokusekwe kwisantya esiphezulu sokujikeleza, kunye nobukhulu bomthwalo, unokugqiba ukuba i-motor stepper oyikhethayo ngoku ifanelekile, ukuba akunjalo kufuneka uyazi ukuba luhlobo luni lwe-stepper motor onokuyikhetha).
Ukongeza, i-motor stepper ekuqaleni emva komthwalo ungatshintshwa, kwaye emva koko wandise ukuphindaphinda, kubai-motor ye-steppermzuzu ijiko frequency kufuneka eneneni zibe ezimbini, unayo leyo kufuneka ibe ngumzuzu isiqalo ijiko frequency, kwaye enye ivaliwe mzuzu ijiko frequency, le igophe imele intsingiselo: qala motor kwi-frequency yokuqala, emva kokugqitywa isiqalo unokwandisa umthwalo, kodwa motor akayi kulahlekelwa inqanaba inqanaba; okanye Qala i-motor kwi-frequency yokuqala, kwimeko yomthwalo oqhubekayo, unokunyusa ngokufanelekileyo isantya sokuhamba, kodwa i-motor ayiyi kuphulukana nenqanaba lenyathelo.
Oku ngasentla kukuqaliswa kwe-stepper motor ngaphandle kwenyathelo kunye ne-overshoot.
Ukuba ufuna ukunxibelelana kunye nokusebenzisana nathi, nceda uzive ukhululekile ukuqhagamshelana nathi!
Sisebenzisana ngokusondeleyo nabathengi bethu, simamela iimfuno zabo kwaye senze ngokwezicelo zabo. Sikholelwa ukuba intsebenziswano yokuphumelela isekelwe kumgangatho wemveliso kunye nenkonzo yabathengi.
Ixesha lokuposa: Apr-03-2023