Uma i-inverter ehambisanayo ikhethelwa i-variable frequency motor, lezi zivivinyo ezimbili zokuqinisekisa ezilandelayo kufanele zenziwe ngesisekelo sokuhlaziywa okuningiliziwe kwezici zomthwalo ngaphansi kwezimo zangempela zokusebenza zemoto: 1) ukuhambisana kozibuthe kagesi kwe-inverter ngokwayo;2) akukho-mthwalo, umthwalo, izici zokusebenza zokulungisa ezifana nokudlidliza nomsindo ngesikhathi sejubane.
1 Umthwalo we-torque njalo
Lapho ukulawulwa kwesivinini sokuguqulwa kwemvamisa kwenziwa ngaphansi komthwalo we-torque ongaguquki, i-torque yokumelana ku-shaft ephumayo yemoto izohlala ingashintshiwe phakathi nenqubo yokwandisa noma yokunciphisa isivinini, kepha inani eliphakeme lejubane lokukhuphuka alivunyelwe ukudlula isilinganiso. isivinini, ngaphandle kwalokho injini izoshiswa ngenxa yokusebenza ngokweqile.Enqubweni yokwanda kwejubane, akukhona nje kuphela i-torque yokumelana, kodwa futhi ne-inertia torque ukuvimbela ukuguqulwa kwesivinini, ukuze i-torque ku-motor shaft idlule i-torque elinganiselwe ye-motor, futhi kungase kubangele amaphutha ahlukahlukene kagesi ngenxa ye-shaft. ukuphuka noma ukushisa ngokweqile kwama-windings.Okubizwa ngokuthi ukulawulwa kwejubane le-torque eqhubekayo empeleni kubhekisela ku-torque engaguquki ku-shaft okukhiphayo ye-motor lapho isivinini silungiswa kunoma yisiphi isivinini sokusebenza okuzinzile, futhi inamandla okushayela umthwalo we-torque njalo.Enqubweni yokusheshisa kwemoto noma ukwehla, ukuze kufinyezwe isikhathi senqubo yoshintsho, ngaphakathi kwebanga elivumelekile lamandla emishini yenjini kanye nokwenyuka kwezinga lokushisa lemoto, i-motor shaft kufanele ikwazi ukukhiqiza ukusheshisa okukhulu ngokwanele noma i-braking torque, ukuze injini ikwazi ukungena ngokushesha isivinini sokujikeleza.isimo sokusebenza kwe-torque.
2 Umthwalo wamandla njalo
Isici se-torque-speed samandla angaguquki sibhekisela eqinisweni lokuthi amandla ahlinzekwa injini adinga ukuhlala njalo lapho okokusebenza noma imishini ishintsha isivinini sokusebenza.Izidingo zesici ze-torque ephezulu nesivinini esikhulu, okungukuthi, i-motor kufanele ibe nekhono lokushayela i-torque eguquguqukayo kanye nemithwalo yamandla engapheli.
Lapho i-voltage yemoto ikhula ngokunyuka kwemvamisa, uma i-voltage yemoto isifinyelele ku-voltage elinganiselwe yemoto, ayivunyelwe ukuqhubeka nokukhulisa i-voltage ngokunyuka kwemvamisa, ngaphandle kwalokho ukufakwa kwe-motor kuzoba iphukile ngenxa yokugcwala ngokweqile .Ngenxa yalesi sizathu, ngemva kokuba injini ifinyelele i-voltage elinganisiwe, ngisho noma imvamisa ikhuphuka, i-motor voltage ihlala ingashintshiwe.Amandla injini engawakhipha anqunywa umkhiqizo we-voltage elinganisiwe kanye nesilinganiso samanje semoto, futhi lamanje alisashintshi nemvamisa.Ifinyelele i-voltage engaguquki, ukusebenza kwamanje kanye nokusebenza kwamandla njalo.
Ngaphandle kwamandla angapheli kanye nemithwalo ye-torque engaguquki, ezinye izinto zokusebenza zisebenzisa amandla ahluka kakhulu ngesivinini sokusebenza.Ngemishini efana namafeni namaphampu amanzi, i-torque yokumelana ilingana namandla we-2 kuya kweyesi-3 wejubane lokugijima, okungukuthi, isici somthwalo wokunciphisa i-torque yesikwele, udinga kuphela ukukhetha inverter yokonga amandla ngokusho kwephuzu elilinganiselwe;Uma injini isetshenziswa, izidingo zokusebenza zenjini phakathi nayo yonke inqubo yokuqala ukusuka ekumeni kuya esivinini sokugijima esijwayelekile kufanele zibhekwe njengento ebaluleke kakhulu.
Isikhathi sokuthumela: May-13-2022