1. Isimiso sokusebenza somshayeli we-servo:
Njengamanje, abashayeli be-servo abajwayelekile bonke basebenzisa i-digital signal processor (DSP) njengomongo wokulawula, ongakwazi ukubona i-algorithm yokulawula eyinkimbinkimbi, futhi ibone ukwenziwa kwedijithali, ukunethiwekha kanye nobuhlakani.Amadivayisi kagesi ngokuvamile asebenzisa i-intelligent power module (IPM) njengomklamo oyinhloko wesekethe yedrayivu, isekethe yedrayivu edidiyelwe ye-IPM yangaphakathi, futhi ine-overvoltage, overcurrent, overheating, undervoltage kanye nezinye isekethe yokuvikela ukutholwa kwamaphutha, kusekethe enkulu futhi yengeza isekethe yokuqala ethambile. , ukuze kuncishiswe umthelela wenqubo yokuqala kumshayeli.Iyunithi yokushayela amandla iqala ngokulungisa okokufaka kwezigaba ezintathu noma amandla amapayipi ngokusebenzisa isifunda sesigaba sesithathu sebhuloho eligcwele lokulungisa kabusha ukuze kutholwe wamanje oqondile ohambisanayo.I-AC servo motor enezigaba ezintathu unomphela kazibuthe iqhutshwa yi-inverter ye-voltage ye-sinusoidal PWM enezigaba ezintathu.Yonke inqubo yeyunithi yokushayela amandla ingachazwa kalula njengenqubo ye-AC-DC-AC.Isekhethi ye-topological eyinhloko ye-AC-DC iyisekhethi enezigaba ezintathu ezigcwele - ibhuloho elingalawuleki lokulungisa kabusha.
Ngokusetshenziswa okukhulu kwesistimu ye-servo, ukusetshenziswa kwe-servo drive, ukulungisa iphutha kwe-servo drive, ukugcinwa kwe-servo drive kuyizihloko zobuchwepheshe ezibaluleke kakhulu ku-servo drive yanamuhla, abahlinzeki benkonzo yobuchwepheshe bokulawula izimboni baya ngokuya besanda kubuchwepheshe be-servo drive ocwaningweni olujulile. .
Umshayeli we-Servo uyingxenye ebalulekile yokulawula ukunyakaza kwesimanje, esetshenziswa kakhulu kumarobhothi ezimboni nasezikhungweni zemishini ye-CNC nezinye izinto zokusebenza ezizenzakalelayo.Ikakhulukazi, umshayeli we-servo osetshenziswa ukulawula i-AC unomphela uzibuthe motor synchronous isiphenduke indawo yocwaningo ekhaya naphesheya.Okwamanje, isivinini, isikhundla 3 sokulawula iluphu evaliwe esekelwe kulawulo lwe-vector isetshenziswa kabanzi ekwakhiweni komshayeli we-servo we-AC.Ukuthi idizayini ye-loop evaliwe yesivinini kule-algorithm inengqondo noma cha idlala indima ebalulekile kulo lonke uhlelo lokulawula i-servo, ikakhulukazi ekusebenzeni kokulawula isivinini.
2. Umshayeli we-Servo:
Njengengxenye ebalulekile yokulawula ukunyakaza kwesimanje, isetshenziswa kakhulu kumarobhothi ezimboni nasezikhungweni zemishini ye-CNC neminye imishini yokushintshashintsha.Ikakhulukazi, umshayeli we-servo osetshenziswa ukulawula i-AC unomphela uzibuthe motor synchronous isiphenduke indawo yocwaningo ekhaya naphesheya.Okwamanje, isivinini, isikhundla 3 sokulawula iluphu evaliwe esekelwe kulawulo lwe-vector isetshenziswa kabanzi ekwakhiweni komshayeli we-servo we-AC.Ukuthi idizayini ye-loop evaliwe yesivinini kule-algorithm inengqondo noma cha idlala indima ebalulekile kulo lonke uhlelo lokulawula i-servo, ikakhulukazi ekusebenzeni kokulawula isivinini.
Ku-loop yesivinini esivaliwe somshayeli we-servo, ukunemba kokulinganisa isivinini sesikhathi sangempela se-motor rotor kubaluleke kakhulu ukuthuthukisa izici eziguquguqukayo nezimile zokulawula isivinini seluphu yesivinini.Ukuze kutholwe ibhalansi phakathi kokunemba kokulinganisa nezindleko zesistimu, isifaki khodi sogesi esikhulayo ngokuvamile sisetshenziswa njengenzwa yokulinganisa isivinini, futhi indlela yokulinganisa isivinini ehambisanayo yi-M/T.Nakuba i-M/T tachometer inokunemba okuthile kokulinganisa kanye nobubanzi bokulinganisa obubanzi, inamaphutha ayo angokwemvelo, okuhlanganisa: 1) okungenani i-pulse eyodwa yedisk ephelele yekhodi kufanele itholwe esikhathini sokulinganisa, esikhawulela isivinini esincane esilinganisekayo;2) Kunzima ekushintsheni kwesikhathi sezinhlelo ezimbili zokulawula ezisetshenziselwa ukulinganisa isivinini ukuze kugcinwe ukuvumelanisa okuqinile, futhi ukunemba kokulinganisa isivinini akukwazi ukuqinisekiswa ezenzakalweni zokulinganisa ngezinguquko ezinkulu zesivinini.Ngakho-ke, kunzima ukuthuthukisa ukusebenza kwesivinini somshayeli we-servo olandela nokulawula ngokusebenzisa indlela yendabuko yokuklama iluphu yejubane.
Ulwazi olunzulu:
I. Inkambu yohlelo lokusebenza:
I-Servo drive isetshenziswa kabanzi emkhakheni womshini wokubumba umjovo, imishini yendwangu, imishini yokupakisha, amathuluzi omshini we-CNC nokunye.
Ii.Umehluko Ohlobene:
1. Isilawuli se-servo singaguqula kalula imodyuli yokusebenza kanye nemodyuli ye-fieldbus ngokusebenzisa isikhombimsebenzisi esizenzakalelayo.Ngesikhathi esifanayo, amamojula ahlukene we-fieldbus asetshenziselwa ukufeza izindlela zokulawula ezihlukene (RS232, RS485, fibre optical, InterBus, ProfiBus), futhi imodi yokulawula yesiguquli semvamisa evamile ihlukile.
2. Isilawuli se-servo sixhunywe ngokuqondile ku-transformer ejikelezayo noma isishumeki ukuze sakhe iluphu evaliwe yesivinini kanye nokulawula kokususa.Kodwa i-universal frequency converter ingakha kuphela i-open loop control system.
3. Inkomba ngayinye yokulawula (njengokunemba kwesimo esizinzile kanye nokusebenza okuguquguqukayo, njll.) yesilawuli se-servo ingcono kunaleyo yesiguquli sefrikhwensi evamile.
Isikhathi sokuthumela: May-26-2023