Chikamu chinotenderera pakati pepombi yepakati waya, kana pakati pewaya mbiri (kana isina pombi yepakati).
Yakatenderedzwa kona yeasina-mutoro mota, nepo zvikamu zviviri zvevavakidzani zvichinakidzwa
Mutengo westepper motakuenderera mberi kutsika.
Iyo yakanyanya torque iyo shaft inogona kumira pasina kutenderera kutenderera, nepo tambo dzekutungamira dzakabviswa.
Iyo yakanyanya static torque iyo shaft ye astepper motorkunakidzwa neyakayerwa ikozvino inogona kumira pasina kutenderera kutenderera.
Iyo yakanyanya pulse rates iyo inonakidza stepper mota ine imwe mutoro inogona kutanga uye isina desynchronizing.
Iyo yakanyanya pulse rates iyo inonakidza stepper mota inotyaira mumwe mutoro inogona kusvika uye isingarambe ichidenha.
Iyo yakanyanya torque iyo iyo inonakidza stepper mota inogona kutanga pane imwe pulse rate uye irambe isina desynchronizing.
Iyo yakanyanya torque iyo iyo stepper mota inotyairwa pane zvakatemwa mamiriro uye imwe pulse rate inogona kumira uye kuramba isina desynchronizing.
Iyo pulse rate renji iyo inotsika mota ine inonyorerwa mutoro inogona kutanga, kumira kana kudzoreredza, uye kuramba isina desynchronizing.
Iyo peak voltage yakayerwa pachikamu, kana yakatakura shaft yemota ichimhanya inoramba ichiita 1000 RPM.
Musiyano pakati peiyo theoretical uye chaiyo integrated angles (zvinzvimbo).
Musiyano pakati peiyo theoretical uye chaiyo imwe nhanho kona.
Musiyano pakati pezvinzvimbo zvekumira zveCW neCCW.
Chopper inogara iripo yedhiraivha imhando yedhiraivha modhi ine kuita zvirinani uye kushandiswa kwakawanda parizvino. Pfungwa huru ndeyekuti chiyero chazvino cheiyo conductive phase winding inochengetwa zvisinei nekuti iyostepper motoriri munzvimbo yakakiyiwa kana kumhanya iri pasi kana yakakwirira frequency. BellowFigure ndiyo dhiyabhorosi dhizaini yechopper inogara yazvino dhiraivha yedunhu, umo chete chikamu chekutyaira chedunhu chinoratidzwa, uye chimwe chikamu chakafanana. Iko-kubviswa kwechikamu chekutenderera kunodzorwa pamwe chete neiyo switching chubhu VT1 uye VT2. Iyo emitter yeVT2 yakabatana nesampling resistance R, uye kudonhedza kudonhedza pakupokana kunoenzanirana neazvino I yechikamu chinotenderera.
Kana iyo control pulse UI iri pamhepo yakakwira, ese VT1 uye VT2 switch machubhu anobatidzwa, uye dc magetsi anopa mhepo. Nekuda kwesimba rekuita inductance yemhepo, iyo voltage pane sampling resistance R inowedzera zvishoma nezvishoma. Kana kukosha kweiyo yakapihwa voltage Ua yakapfuura, muenzanisi anoburitsa yakaderera mwero, kuitira kuti gedhi zvakare rinoburitsa yakaderera mwero. VT1 yakagurwa uye dc magetsi anogurwa. Kana iyo voltage pasampling resistance R ishoma pane yakapihwa voltage Ua, iyo yekuenzanisa inobuda yakakwira mwero, uye gedhi zvakare rinoburitsa yakakwira mwero, VT1 inobatidzwa zvakare, uye iyo dc magetsi inotanga kupa simba kune inotenderera zvakare. Kakawanda, iyo yazvino muchikamu chekutenderera inodzikamiswa pamutengo unotsanangurwa neiyo yakapihwa voltage Ua.
Paunenge uchishandisa anogara ari voltage drive, magetsi emagetsi anofanana neyakayerwa voltage yemota uye anoramba akamira. Constant voltage drives zviri nyore uye zvakachipa pane zvinogara zviripo zvino dhiraivha, izvo zvinodzora magetsi ekupa kuti ive nechokwadi chekuti yakagara iripo inopihwa kumota. Kune yenguva dzose voltage drive, kuramba kwedhiraivha yedhiraivha inodzikamisa iyo yakanyanya ikozvino, uye inductance yemota inodzikamisa kumhanya uko kwazvino kusimuka. Pakumhanya kwakaderera, kuramba ndicho chinomisa chinhu chechizvarwa (uye torque) chizvarwa. Iyo mota ine torque yakanaka uye chinzvimbo chekutonga uye inomhanya zvakanaka. Nekudaro, sezvo iyo mota inomhanyisa ichiwedzera, iyo inductance uye yazvino kusimuka nguva inotanga kudzivirira ikozvino kuti isasvike kukosha kwayo. Uyezve, sezvo kumhanya kwemota kunowedzera, iyo yekumashure EMF inowedzerawo, zvinoreva kuti simba remagetsi rakawanda rinoshandiswa chete kukunda kuseri kweEMF voltage. Naizvozvo, chakashata chikuru chekugara voltage drive ndiko kukurumidza kudonha kwe torque inogadzirwa pane yakaderera kumhanya kweiyo stepper mota.
Kutenderera kwekutyaira kwebipolar stepper mota kunoratidzwa muMufananidzo 2. Inoshandisa sere transistors kutyaira maviri seti yezvikamu. Iyo bipolar drive circuit inogona kutyaira ina-waya kana matanhatu-waya stepper mota panguva imwe chete. Kunyangwe iyo ina-waya mota ichingogona kushandisa bipolar drive wedunhu, inogona kuderedza zvakanyanya mutengo wehuwandu hwekugadzira maapplication. Huwandu hwema transistors ari mubipolar stepping mota drive circuit yakapetwa kaviri iyo yeunipolar drive circuit. Iwo mana epasi transistors anowanzo kufambiswa zvakananga ne microcontroller, uye yekumusoro transistor inoda yakakwira mutengo wepamusoro dhiraivha wedunhu. Iyo transistor yebipolar drive circuit inongoda kutakura mota voltage, saka haidi clamp circuit senge unipolar drive circuit.
Unipolar uye bipolar ndiwo anonyanya kushandiswa dhiraivha maseketi ayo anotsika mota anoshandiswa. Iyo imwechete-polar yekutyaira yedunhu inoshandisa mana ma transistors kutyaira maviri seti ezvinhanho zveinotsika mota, uye mota stator inomonereka chimiro inosanganisira maviri seti emakoiri ane epakati pombi (yepakati pombi yeAC coil O, BD coil) Iyo yepakati pombi m), uye mota yese ine yakazara mitsetse mitanhatu ine yekunze yekubatanidza. Iyo AC side haigone kupa simba (BD kuguma), zvikasadaro iyo magineti flux inogadzirwa nemakoiri maviri ari pamagineti pole inodzima mumwe nemumwe, chete kushandiswa kwemhangura kwecoil kunogadzirwa. Nokuti chaizvoizvo zvikamu zviviri chete (AC windings chikamu chimwe, BD kupeta chikamu chimwe), chirevo chakarurama chinofanira kunge chiri maviri-chikamu chenhanhatu-waya (hongu, ikozvino kune mitsetse mishanu, yakabatanidzwa kune mitsara miviri yevanhu) Kutsika motokari.
Chimwe-chikamu, simba-pamhepo inomonereka chikamu chimwe chete, sequentially kushandura chikamu chemazuva ano chichigadzira iyo inotenderera nhanho angle (yakasiyana magetsi emagetsi, 18 madhigirii 15 7.5 5, yakasanganiswa motokari 1.8 madhigirii uye 0.9 madhigirii, anotevera 1.8 madhigirii anotaridzirwa kune iyi nzira yekukurudzira, uye mhinduro ye pulse yakakwira zvakanyanya. nyore kugadzira yechinyakare.
Maviri-phase excitation: maviri-phase panguva imwe chete kutenderera kutenderera ikozvino, anoshandisawo nzira yekuchinja nhanho mafungu ekuchinja, yechipiri-chikamu intensity nhanho angle ndeye 1.8 madhigirii, iyo yakazara ikozvino yemasekete maviri ndeye 2 nguva, uye yepamusoro yekutanga frequency inowedzera, inogona kuwanikwa Kukurumidza, kuwedzera, kuita kwakanyanya.
1-2 Excitation: Iyi inzira yealternately kuita phase-in excitation, maviri-phase excitation, kutanga ikozvino, imwe neimwe miviri inogara ichichinja, saka nhanho yenhanho ndeye 0.9 madhigirii, iyo excitation ikozvino yakakura, uye kudarika-kuita kwakanaka. Iyo yakawanda yekutanga frequency zvakare yakakwirira. Inowanzozivikanwa sehalf-way excitation drive
Nguva yekutumira: Jul-06-2023