Imishini yokuwasha yezimboni yendabuko isebenzisa amamotho esivinini amabili e-AC amaningi ukulawula isivinini, asetshenziswa kabanzi ngenxa yesakhiwo sawo esilula, ukuqina, kanye nezindleko eziphansi. Kodwa ububi bayo ukusebenza kabi kokulawula isivinini, ukushintshashintsha kwesivinini okukhulu, nokudlidliza okuphezulu. Ngokuthuthukiswa kobuchwepheshe be-semiconductor yamandla, eminyakeni yamuva, iziguquli ze-AC frequency zisetshenziswe kabanzi emishinini yokuwasha yezimboni. Imishini yokuwasha yasezimbonini inezidingo eziphakeme kakhulu zama-frequency converters, ezingahlangabezana nobunzima bezobuchwepheshe be-torque ephezulu yokuqala, isivinini esinezigaba eziningi, ububanzi bamandla kagesi, isinxephezelo esizenzakalelayo sokushelela, nezindlela zokuxhumana ezisheshayo nezinamandla ezidingwa yimishini yokuwasha yezimboni. Futhi inokusebenza okuzinzile futhi ingakwazi ukuzivumelanisa nezimo ezihlukahlukene zokushisa eziyinkimbinkimbi nezimo ezinomswakama ophezulu.
Isimiso sokusebenza somshini wokuwasha wezimboni
Ukwakhiwa kwesistimu yokulawula kagesi yomshini wokuqopha we-CNC
Umshini wokuwasha wezimboni ozenzakalelayo ngokugcwele ubhekisela emshinini wokuwasha osezingeni eliphezulu onemisebenzi efana nokuwasha kokuqala, ukuwasha, ukuwasha, ukuhlanza, nokukhipha amanzi emzimbeni, futhi ungashintsha ngokuzenzakalelayo phakathi kwale misebenzi ngaphandle kwesidingo sokusebenza ngesandla.
Imishini yokuwasha yasezimbonini ikakhulukazi yakhiwe izingxenye ezifana nesigubhu sangaphandle, isigubhu esijikelezayo, ingxenye yokudlulisela, ikhabethe lokulawula ugesi, izembozo zokuvala kwesokunxele nakwesokudla, amathuluzi amapayipi, namavalvu okudonsa amanzi. Isakhiwo semishini yokuwasha yezimboni ngokuvamile samukela uhlobo lwesigubhu esivundlile, futhi zombili izigubhu zangaphakathi nezingaphandle zenziwe ngensimbi engagqwali ecolisisiwe yezinga eliphezulu, eyisicaba, ekhanyayo, ekwazi ukumelana nokugqwala, engagugi kancane ezindwangu futhi ayinawo umonakalo, futhi inomsebenzi ende wenkonzo; Isembozo somnyango wangaphakathi we-cylinder womshini wokuwasha wezimboni ufakwe umshini wokukhiya ukuphepha kwensimbi engagqwali, futhi isembozo somnyango wangaphandle we-cylinder sifakwe inkinobho yokuhamba yokusebenza okuphephile nokuthembekile. Isimiso sokusebenza somshini wokuwasha wezimboni ozishintshayo ngokugcwele wukuthi, ngaphansi kokuhlelwa okuhlangene nokuphathwa kwesilawuli sesikhathi, i-asynchronous motor ilawulwa isiguquli semvamisa ukuze siqhubeke senza ukuzungezisa ukuya phambili nangemuva ukuze kuzuzwe ukunyakaza okuhambisanayo kwamanzi nezingubo, ngaleyo ndlela kubangele amanzi nezingubo ukuthi zihlikihle futhi ziguqe komunye nomunye, ukufeza inhloso yokugeza.
Uhlelo lokudlulisa lomshini wokuwasha wezimboni
Uhlelo lokudlulisela luyingxenye ebaluleke kakhulu yemishini yokuwasha yezimboni, njengoba ihlinzeka ngokuyinhloko ukusekelwa kwamandla kumshini wokuwasha futhi ibamba iqhaza kuyo yonke inqubo yokuwasha. Uhlelo lokudlulisela luqukethe injini kagesi kanye nezinqubo ezihlukahlukene zejubane eziguquguqukayo. Namuhla, ama-converter ama-frequency asetshenziswa kakhulu, okwenza izingxenye zawo zibe lula. Imvamisa, yakhiwe ngama-converter frequency, ama-asynchronous motors, ama-pulleys, namabhande okudlulisela. Futhi kuso sonke isiteji sokugeza, ngokulungiswa kwemvamisa okuzenzakalelayo kwesiguquli se-frequency, ijubane eliguquguqukayo le-torque (ukulawulwa kwesivinini esingenasinyathelo) ngaphandle komthelela noma amadivaysi okushintsha aphakathi nendawo (ibhokisi legiya, idivayisi yokudlulisa noma ukuhlanganisa, i-clutch, njll.) ifinyelelwa, okunciphisa kakhulu ukusetshenziswa kwamandla kwenqubo yokuwasha.
Inqubo yokuwasha yemishini yokuwasha yezimboni: Okokuqala, engeza amanzi, geza uye phambili futhi uhlehlise izinkomba. Ngemuva kokugeza, khipha amanzi bese ungena esigabeni sokuqeda amanzi. Isigaba sokuphelelwa amanzi emzimbeni sihlanganisa izinqubo ezintathu: ukusatshalaliswa okufanayo, ukuphelelwa amandla kwamanzi okuphakathi, nokuphelelwa amanzi emzimbeni okuphezulu. Ukusabalalisa okufanayo kubhekisela ekujikelezeni izingubo ngendlela eya phambili ngesivinini esiphezulu kunenqubo yokuwasha, noma ngaphandle kwamanzi, ukuze izingubo zihlanganiswe ngokulinganayo ngaphakathi kwesigubhu somshini wokuwasha, okwenza inqubo elandelayo yokuphelelwa amandla kwamanzi ibe bushelelezi; Ngemuva kokukhipha amanzi, khulisa isivinini ukuze ungene enqubweni yokuphelelwa amanzi emzimbeni ngesivinini esiphakathi, bese ufaka inqubo yokukhipha amanzi ngesivinini esiphezulu ukuze unciphise umswakama wezingubo ezingeni elidingekayo. Imishini yokuwasha yasezimbonini idinga ama-converter ama-frequency ukuze anikeze i-torque ephezulu, isivinini esiningi, ububanzi bamandla kagesi, kanye nesinxephezelo esizenzakalelayo sokushelela. Umsebenzi oyinhloko wokuguqula imvamisa kulesi simiso ukulungisa isivinini somshini wokuwasha, ukuze umshini wokuwasha ube sesimweni esiphansi ngesikhathi somjikelezo wokugeza futhi une-torque ebushelelezi kakhulu. Phakathi nomjikelezo wokuphelelwa amanzi emzimbeni, inejubane eliphezulu lokujikeleza. Kungenzeka futhi ukusetha ngokuguquguqukayo imvamisa, okuzuzisa ukulawulwa kwesivinini. Ngale ndlela, uhlelo lungasebenza ngokuzinzile, lunciphise ukugqokwa kwemishini, futhi lunwebe impilo yesevisi yemishini yokuwasha yezimboni. Isiguquli sefrikhwensi yochungechunge lwe-Dongli Kechuang CT100 sinokusebenza okuhle kakhulu njengetorque yokuqala ephezulu, ukusebenza okuphansi kwamanje, kanye nezinyathelo eziphelele zokuvikela amaphutha.
Lesi siguquli se-frequency samukela umklamo ohlukile we-voltage obanzi we-320V-460V, futhi i-torque yokuqala ingafinyelela ku-150% we-torque elinganiselwe ku-0.25Hz. Umsebenzi wokukhuphula ithoshi othomathikhi ungafinyelela ukulawulwa kwetorque ephezulu ye-low-frequency ngaphansi kwemodi yokulawula ye-v/f. Isivinini sesigaba se-16 singahlangabezana nemodi yokulawula isivinini sezigaba eziningi ngezikhathi ezihlukahlukene, ngebanga elibanzi lejubane, akukho ndawo yokudayisa ngesikhathi sokusheshisa nokunciphisa, kanye nesivinini esizinzile kuyo yonke inqubo.
Isiguquli semvamisa sisekelwe ohlelweni lokulawula lwe-DSP futhi samukela ubuchwepheshe bokulawula i-vector yamahhala be-PG obuhamba phambili, obuhlanganiswe nezindlela eziningi zokuvikela, ezingasetshenziswa kumamotho asynchronous futhi anikeze ukusebenza okuhle kakhulu kokushayela. Umkhiqizo uthuthukise kakhulu ukusebenziseka kwamakhasimende kanye nokuvumelana nezimo zemvelo ngokuya ngedizayini yepayipi lomoya, ukucushwa kwehadiwe, nokusebenza kwesoftware.
Izici Zobuchwepheshe
◆ Ukukhetha ukuthembeka okuphezulu: Izingxenye ezibalulekile zonke zivela kumikhiqizo eyaziwayo yasekhaya neyangaphandle, phakathi kwayo imodyuli ye-inverter isebenzisa imodyuli yesizukulwane sesine se-Infineon. Izinga lokushisa eliphakeme le-module junction lingahlangabezana nemfuneko yokushisa kwe-ambient engu-50 degrees Celsius ngaphandle kokunciphisa ukusetshenziswa!
◆ Idizayini enkulu ye-redundancy: Ngokubala okuqinile nokuqinisekiswa kokuhlola, izingxenye ezibalulekile zenzelwe ama-margins amakhulu ukuze kuqinisekiswe ukuzinza kwesikhathi eside kwawo wonke umshini ezindaweni ezinonya.
Ukulawulwa kwe-vector okuthuthukisiwe: Ukulawulwa kwe-vector okuhamba phambili kwesivinini kwasekhaya okuhamba phambili nge-torque ephezulu ephansi kanye nokuphendula kwetorque esheshayo.
◆ Umsebenzi wokunciphisa i-Software wamanje kanye ne-voltage: I-voltage enhle kanye nomkhawulo wamanje, okukhawulela ngempumelelo amapharamitha okhiye wokulawula ukuze kuncishiswe ingozi yokuhluleka kwe-inverter.
Ukuzivumelanisa nezimo kwemvelo okuqinile: Ngephuzu eliphezulu lokushisa eliphelele, idizayini yepayipi lomoya elizimele, kanye nokwelashwa kopende okufakazela ubufakazi obuthathu, ifaneleka kakhulu ekusebenzeni kwesikhathi eside ezindaweni zikawoyela zangaphandle.
◆ Umsebenzi wokuqalisa kabusha ukulandelela isivinini: finyelela isiqalo esibushelelezi samamotho ajikelezayo ngaphandle komthelela
◆ Umsebenzi wokulungisa i-voltage ezenzakalelayo: Lapho i-voltage yegridi ishintsha, ingagcina ngokuzenzakalelayo i-voltage ephumayo engaguquki
Ukuvikelwa kwamaphutha okuphelele: i-overcurrent, overvoltage, undervoltage, overtemperature, ukulahleka kwesigaba, ukulayisha ngokweqile kanye neminye imisebenzi yokuvikela
◆ Izindlela zokubhuleka eziningi: Inikeza izindlela eziningi zokubhuleka ukuze kuqinisekiswe ukuvala kwesistimu okuzinzile, okunembile, nokushesha
Isiphetho
Imishini yokuwasha yezimboni idinga ukushintsha ngokuzenzakalelayo phakathi kwesivinini esihlukene ukuze ihlangabezane nezidingo zejubane zezigaba zenqubo ezahlukene. Umsebenzi we-VF we-multi-point we-converter ye-frequency ungafinyelela ukulawulwa kwe-low-frequency kanye nokulawulwa kwamanje okuphansi ngesikhathi sesiteji sokugeza kanye nokulawula okujulile okujulile okubuthakathaka okubuthakathaka ngesikhathi sesiteji sokuhlubula okuphezulu; Isivinini esiningi singahlangabezana nokulawulwa kwesivinini okungafika kumasegimenti ayisishiyagalombili ngokushintsha phakathi kwamatheminali amathathu esivinini esikhulu. Ukuduma kweziguquli zefrequency emishinini yokuwasha yezimboni kunokubaluleka kwesikhathi eside embonini yemishini yokuwasha yezandla.