Ukusonga ingxenye phakathi kompompi ophakathi nendawo, noma phakathi kwezintambo ezimbili (uma ungekho umpompi ophakathi nendawo).
I-engeli ezungezisiwe yenjini engalayishi, kuyilapho izigaba ezimbili ezingomakhelwane zijabule
Izinga leI-stepper motorukunyakaza okuqhubekayo.
I-torque ephezulu i-shaft engakwazi ukumelana nayo ngaphandle kokuzungezisa okuqhubekayo, kuyilapho izintambo zomthofu zinqanyulwa.
I-torque enkulu emile shaft ye-ai-stepper motorujatshuliswe ngesilinganiso samanje singamelana ngaphandle kokuzungezisa okuqhubekayo.
Amazinga aphezulu we-pulse lapho injini ejabulile enomthwalo othile ingaqalisa futhi akukho ukuvumelanisa.
Amazinga aphezulu we-pulse motor ejabulile eshayela umthwalo othile engafinyelela kuwo futhi anganqamuki.
I-torque ephezulu i-stepper motor ejabulile engayiqala ngesilinganiso esithile sokushaya kwenhliziyo futhi ingagcini i-desynchronizing.
Itorque ephezulu eshayelwa i-stepper motor ngaphansi kwezimo ezishiwo kanye nezinga elithile lokushaya kwenhliziyo elingamelana futhi linganqamuki.
Ibanga lesilinganiso sokushaya kwenhliziyo injini enyathelayo enomthwalo onqunyiwe engakwazi ukuyiqalisa, ime noma ihlehle, futhi ingagcini i-desynchronizing.
Amandla kagesi aphezulu akalwa esigabeni ngasinye, lapho ethwele shaft yemoto ngesivinini esingaguquki esingu-1000 RPM.
Umehluko phakathi kwama-engeli ahlanganisiwe kanye nethiyori (izikhundla).
Umehluko phakathi kwetiyori kanye ne-engeli yesinyathelo esisodwa sangempela.
Umehluko phakathi kwezindawo zokuma ze-CW ne-CCW.
I-Chopper yamanje ye-drive circuit iwuhlobo lwemodi yokushayela esebenza kangcono kanye nokusetshenziswa okwengeziwe okwamanje. Umbono oyisisekelo ukuthi isilinganiso samanje sokuphenduka kwesigaba sokuqhuba siyagcinwa kungakhathaliseki ukuthi i-i-stepper motorisesimweni sokukhiyiwa noma isebenza ngefrikhwensi ephansi noma ephezulu. I-BellowFigure iwumdwebo wohlelo lwesekethe yedrayivu yamanje ye-chopper, lapho kuboniswa khona isekethe yesigaba esisodwa sokushayela, kanti esinye isigaba siyafana. Ukuvala ukuphenduka kwesigaba kulawulwa ngokuhlanganyela yishubhu yokushintsha i-VT1 ne-VT2. I-emitter ye-VT2 ixhunywe nokumelana kwesampula R, futhi ukwehla kwengcindezi ekuphikiseni kuhambisana ne-I yamanje yokujika kwesigaba.
Uma i-control pulse UI iku-voltage ephezulu, womabili amashubhu okushintsha i-VT1 ne-VT2 ayavulwa, futhi amandla kagesi e-dc anikeze ukusongwa. Ngenxa yethonya le-inductance of the winding, i-voltage ekumelaneni kwesampula R ikhula kancane kancane. Lapho inani le-voltage enikeziwe ye-Ua lidlulwa, isiqhathanisi sikhipha izinga eliphansi, ukuze isango liphinde likhiphe izinga eliphansi. I-VT1 inqanyuliwe futhi ugesi we-dc unqanyuliwe. Lapho i-voltage ekumelaneni kwesampula R ingaphansi kwe-voltage enikeziwe ye-Ua, izinga eliphezulu lokukhipha isiqhathanisi, futhi isango liphinde likhiphe izinga eliphezulu, i-VT1 iphinde ivulwe, futhi amandla kagesi e-dc aqala ukuhlinzeka amandla ku-winding futhi. Ngokuphindaphindiwe, i-current in the phase winding iqiniswa ngenani elinqunywe yi-voltage enikeziwe ethi Ua.
Uma usebenzisa i-voltage drive engaguquki, amandla kagesi afana ne-voltage elinganisiwe yemoto futhi ahlala engashintshi. Amadrayivu kagesi angaguquki alula futhi ashibhile kunamadrayivu amanje angashintshi, alawula i-voltage yokuhlinzeka ukuze kuqinisekiswe ukuthi ugesi ongaguquki unikezwa injini. Ukuze uthole i-voltage drive engaguquki, ukumelana kwesekethe yedrayivu kuzokhawulela ubuningi bamanje, futhi inductance yemoto izokhawulela isivinini lapho ikhuphuka khona manje. Ngesivinini esiphansi, ukumelana kuyisici esikhawulelayo esizukulwaneni samanje (kanye ne-torque). I-motor ine-torque enhle nokulawula ukuma futhi isebenza kahle. Kodwa-ke, njengoba isivinini se-motor sikhuphuka, i-inductance kanye nesikhathi sokukhuphuka kwamanje siqala ukuvimbela okwamanje ekufinyeleleni inani elihlosiwe. Ngaphezu kwalokho, njengoba ijubane lemoto likhula, i-EMF yangemuva nayo iyanda, okusho ukuthi amandla kagesi amaningi asetshenziswa kuphela ukunqoba i-voltage ye-EMF yangemuva. Ngakho-ke, okubi okuyinhloko kwe-voltage drive engashintshi ukwehla okusheshayo kwe-torque ekhiqizwa ngesivinini esiphansi kakhulu se-stepper motor.
Umjikelezo wokushayela we-bipolar stepper motor uboniswa ku-Figure 2. Isebenzisa ama-transistors ayisishiyagalombili ukushayela amasethi amabili ezigaba. Isekethe ye-bipolar drive ingashayela amamotho anezintambo ezine noma ayisithupha ngesikhathi esisodwa. Yize injini enezintambo ezine ingasebenzisa isekethe ye-bipolar drive kuphela, inganciphisa kakhulu izindleko zezicelo zokukhiqiza ngobuningi. Inani lama-transistors kusekethe ye-bipolar stepping motor drive liphindwe kabili kunesekhethi ye-unipolar drive. Ama-transistors amane aphansi ngokuvamile ashayelwa ngokuqondile i-microcontroller, futhi i-transistor ephezulu idinga izindleko eziphezulu ze-upper drive circuit. I-transistor yesekethe ye-bipolar drive idinga kuphela ukuthwala i-motor voltage, ngakho-ke ayidingi isekethe ye-clamp njengesekethe ye-unipolar drive.
I-Unipolar ne-bipolar yiziyingi zokushayela ezisetshenziswa kakhulu ezisetshenziswa ama-steping motors. Isekethe yokushayela eyi-polar eyodwa isebenzisa ama-transistors amane ukushayela amasethi amabili ezigaba zemoto enyathelayo, kanti ukwakheka kwe-stator winding kuhlanganisa amasethi amabili amakhoyili anompompi bamaphakathi (umpompi omaphakathi wekhoyili ye-AC O, ikhoyili ye-BD) Ompompi ophakathi ngu-m), futhi yonke injini inengqikithi yemigqa eyisithupha enoxhumo lwangaphandle. Uhlangothi lwe-AC alukwazi ukunika amandla (ukuphela kwe-BD), ngaphandle kwalokho i-flux kazibuthe ekhiqizwa amakhoyili amabili esigxotsheni sikazibuthe iyakhansela yodwa, ukusetshenziswa kwethusi kuphela kwekhoyili kukhiqizwa. Ngenxa yokuthi empeleni kuyizigaba ezimbili kuphela (ama-AC windings ayisigaba esisodwa, ukuvuthwa kwe-BD kuyisigaba esisodwa), isitatimende esinembile kufanele sibe izingxenye ezimbili zezintambo eziyisithupha (Yebo, manje sekunemigqa emihlanu, ixhunywe emigqeni emibili yomphakathi) I-stepping motor.
Isigaba esisodwa, i-motor-on winding isigaba esisodwa kuphela, ngokushintshana ngokushintshana kwesigaba samanje okukhiqiza i-angle yesinyathelo esijikelezayo (imishini kagesi ehlukene, ama-degree angu-18 15 7.5 5, i-motor exubile engu-1.8 degrees kanye nama-degree angu-0.9, ama-degree angu-1.8 alandelayo abhekisela kule ndlela ye-excitation, futhi impendulo yokujikeleza iphezulu kakhulu, i-angle yokujikeleza iphezulu kakhulu. kulula ukwenza isiphelelwe yisikhathi.
I-excitation yezigaba ezimbili: izigaba ezimbili ngesikhathi esisodwa sokujikeleza kwamanje, futhi isebenzisa indlela yokushintsha imisinga yesigaba ngokushintshana, i-angle yesinyathelo sesigaba sesibili intensity yi-1.8 degrees, inani lamanje lamahlelo amabili izikhathi ezingu-2, futhi imvamisa yokuqala yokuqala inyuka, ingatholakala Isivinini esiphezulu, esengeziwe, ukusebenza ngokweqile.
I-1-2 Excitation: Lena indlela yokwenza ngokushintshana i-excitation ye-phase-in, i-excitation yezigaba ezimbili, ukuqala kwamanje, okubili ngakunye kuyashintsha njalo, ngakho-ke i-angle yesinyathelo ingu-0.9 degrees, i-excitation current inkulu, kanye nokusebenza ngokweqile kuhle. Imvamisa yokuqala yokuqala nayo iphezulu. Okuvame ukwaziwa njenge-half-way excitation drive
Isikhathi sokuthumela: Jul-06-2023