Ukuziqhelanisa Ukusuka Kwemoto Yomthambo Omtsha Wokugqibela

U-Weiying uyazi ukuba yintoni indlela yokulawula ispeed ngokupheleleyo yamagunya akho. Amagunya ayisebenzisa kwiifan, iipampu, iiconveyors belt kunye nezinye izinto eziningi eziyimfuneko ukuzinikela umsebenzi wakho ubuyekile. Ukuba indlela yase-AC induction yokusebenza uya kufika kwindlela enkulu kakhulu okanye encacile kakhulu, iziphumo ezingenakwenzeka zizoba khona. Ngoko ke ukufumana indlela enobunzulu yokulawula ispeed kuyisisekelo esikhulu kakhulu. Kukho imithombo eminin’i, ngalinye inemithombo eyodwa yayo. Ngoko ke siyabona le ndlela kwaye sibone ukuba yintoni ukubaluleka kwazo.

Ukulawula Ispeed ye-3-Phase AC Motor kuyisisekelo esikhulu kakhulu kwiindlu zokusebenza ezinin’i

Indlela eyodwa yokuphatha isikhathi esibonakalayo kumotora we-AC yomzimba wokugqibela ngu-VFD, okanye indlela yokusebenzisa i-Variable Frequency Drive. I-VFD iyobhala ifreqwensi yamandla engeyona ephakathi kwemotora. Ngokubhala le freqwensi, umotora uyaphuma kancinci okanye kakhulu. Le ndlela ibonakalayo kakhulu ngoba iyabuyisela amandla kwaye iyinika ukuphatha ngokucacileyo. Umzekelo, umkhosi wokuthintela odinga ukuphula okanye ukuphantsi kusukela kwindawo yokuba ziziphi izinto ezikwi, i-VFD iyakwenza oku kancinci kwaye kufuneka. Indlela enye yokuqiniseka kukho inkqubo yamagiridi emechaniki. Uyobhala igiridi ukuze ubhale isikhathi ngendlela engenakho. Iyasebenza kuhle kodwa kwaye kuncinci kwezinye izinto kungafanelekile kune-VFD. Abanye abantu baya kubhala ngokusebenzisa i-resistor yokuphatha isikhathi, kodwa akukho nto leyo manje ngoba iyabuyisela amandla angaphezu kakhulu. Ngokujuluka, i-VFD ziyinkulu kakhulu yezindlela ezipheleleyo yokuphatha isikhathi somotora we-AC yomzimba wokugqibela ngoba ziyasebenza kuhle kwaye ziyasebenza ngokucacileyo.

Ukukhokela kwezikhathi zokusebenza kwemotolo yase-AC enye nezintathu zikubika iziphumo eziningi. Okokuqala, kusenda inkululeko yamandla. Xa imishini isebenza kuphela ngokukhokela okufunekayo, akukho mandla othwala ngokungafanelekileyo. Lokhu kuyisiphumo esihle kumhlaba futhi kusenda imali kwezibhalo. Okwesibili, ukukhokela kwezikhathi zokusebenza kusiza ukuthi umotolo nesixhobo esisandlisiwe kuso sisebenze ngeminyaka engaphezulu. Ukukhokela okuhle kusho ukuthi kunezinkundla ezingaphezulu, kodwa kuzoba kungabi nesiphelo kancane. Lokhu kusenda imali ngeminyaka engaphezulu ngoba kungenziwa ukubuyisela kancane. Ngaphezu kwalokho, ukukhokela okuhle kwezikhathi zokusebenza kusiza ukuthi ubuchwepheshe bokusebenza kube hle. Joluba kusenomsebenzi wokwenza izinto, xa imishini ibe yinkulu kakhulu kusiza ukuthi izinto zithwaleke. Kodwa ngekukhokela kwezikhathi zokusebenza, zonke izinto zenzelwa ngokuhle. Futhi ukukhokela kwezikhathi zokusebenza kusiza ukuthi umsebenzi wabe ngokuphambuka. Kusiza ukuthi baphindele kuzo zonke izinkinga zokusebenza ngaphandle kokuthenga imishini entsha. Lokhu kusiza ukuthi ukusebenza kube ngokuphambuka kabanzi. I-Weiying iyazi lezi ziphumo futhi ithanda ukunikeza indlela yokusiza umsebenzi ukuthola iziphumo eziphezulu kwe-motolo yase-AC enye nezintathu. makhi yeMakina . 

Yini na ukuthuthukisa izinkinga zokukhokela kwezikhathi zokusebenza kwe-motolo yase-AC enye nezintathu?

Ngamanye amaxesha xa usebenzisa imotolo yomoya wesithathu (3 phase AC motor), isihlakiso asisodwa kakhulu. Lokho kunokuba yinkululeko enkulu, ngakumbi xa ufuna isihlakiso esifanayo ngendlela yokusebenza. Kwi-Weiying, sifuna ukusiza ukwazi ukwenza ntoni ukuze ususelele le nkululeko. Okokuqala, ukuba imotolo ayisebenzi ngendlela efanelekileyo okanye ayishele ngendlela efanelekileyo, jonga umthombo wamandla. Qiniseka ukuba i-voltage iyafanele. Ukuba i-voltage ibizwa kakhulu okanye incinci kakhulu, ikuthintela indlela yokusebenza yomotolo. Emva koko, jonga inkqubo oyisebenzisa ukuguqula isihlakiso. Ngamanye amaxesha izilungiselelo ziyahlukile okanye aziphindeke kakhulu. Ukuba ufumana ukuba izilungiselelo aziphindeke kakhulu, guqula zibuyela kumfanekiso wemotolo.

Inkululeko enye eyayisisekelo yinkqubo yokuqonda yimotolo yomoya yisithathu (3 phase AC motor) kukho umkhondo okanye ukuzimela. Ukuba imotolo inqanda umkhondo omsitho, kungasemva kwezinto ezingaphandle kwikhowudi. Kungasemva kwezinto ezisemthethweni okanye kungasemva kwezinto ezingaqondakali. Jonga ukusetyenziswa kwayo nokuphakamisa amascrew neebolt ezingaqondakali. Ukuba kubuyela kumkhondo, kungasemva kwezinto ezingahlanganisiweyo njenge-oli okanye ukujonga ukuba kufuneka kuchazwe ukuba kufuneka kuchazwe.

Jonga nakho ubunzima obukhona kumotolo. Ukuba ubunzima bubizwa kakhulu, imotolo ibaluleka ukudala isihlakiso esifanelekileyo. Qiniseka ukuba ubunzima buya kwi-inthando yomotolo. Ukuba ujonge lezi zinto zonke kodwa imotolo ayisebenzi kakhulu, kungasemva kwezinto ezingahlanganisiweyo. Kwi-Weiying isistimu seseSolar Energy , siyathetha ukuthi ukugcina umoto wokusebenza ngokupheleleyo kubalulekile, futhi sizisiza ngezinkinga zokuzivikela.

Ukwenza njani ukusebenzisa indlela eyinkulu yokulawula isikhathi sokusebenza kwemoto yase-AC enye nezintathu?

Uma ufuna ukulawula isikhathi sokusebenza semoto yase-AC enye nezintathu ngendlela eyinkulu, kukho izindlela eziningi ozinokuzama. Enye yezindlela epholile kakhulu yayi i-Variable Frequency Drive (VFD) futhi. I-VFD iyishintsha ifreqwensi yamandla okusuka ku-moto ukuze ulawule isikhathi sokusebenza. Lokhu kuyindlela efanelekile ngoba iyisave amandla kodwa isebenza ngokupheleleyo. Uma usebenzisa i-VFD, kubalulekile ukuseta ngokupheleleyo. Landelani amazwi ngokucophelela futhi qinisekisa ukuthi iyafanana nemoto yami.

Indlela eyinkulu engenye yiyimoto yase-servo. Imoto yase-servo iyadibukwa ukulawula ngokupheleleyo isikhathi sokusebenza nokwehla. Isebenzisa isistimu yokubona ukuthi isebenzise ngokupheleleyo. Ngakho-ke uma imithombo yomhlaba iyishintsha, imoto yase-servo iyashintsha ngokuzenzakalelayo ukuze isikhathi sokusebenza sibe senzo. Imoto yase-servo iyinkulu kakhulu futhi ibhala ngaphezu kwemoto yase-AC engcono, kodwa iyisifundo esihle kakhulu ukulawula isikhathi sokusebenza ngokupheleleyo.

Unokwazi nokuthetha nge-"closed-loop control system". Le ndlela iyathambisa ispeed yomotor kwaye iyayisondela ngokuzenzekelayo. Iyincoma ukuthi umotor uhlale ulungele kwi-speed esifunayo. Ukuseta le "closed-loop" kungabomvu, ngoko ke kukho okuqhelekileyo ukuthola usizo kuka-mkhankaso. Kwi-Weiying, sibonisa izindlela zokusebenza nezindlela zokuphinda ukusiza ukwenza le tekniki ephakeme. Ukusebenzisa le mifanekiso iyenza umotor ubalulekile kwaye uyilungele kuyo yonke imisebenzi.

Izinto Ziphi Ziyaphaqa Ukulawula Ispeed Yemimotor Yase-3 Phase AC?

Ukuqonda izinto oziziphatha ispeed yemimotor yase-3 phase AC kubalulekile ukuzilawula ngokulungele. Indlela enkulu yokuquka yisivinini esihlanganisa umotor. Ukuba isivinini sikhulu kakhulu, umotor akakwazi ukufikelela kwi-speed eyinkulu. Ukuba kude kakhulu, uyasebenza kakhulu kwaye unokwenzela ukugqitywa. Ngoko ke isivinini esilungele siyisisekelo sokulawula ngokulungele.

Indlela enye yisikhundla sesiqhelo. Ispeed yemimotor yase-3 phase AC iyahlukana ngqo nesikhundla sesiqhelo. Ngokujwayelekile, ukongeza isikhundla siyenza umotor ukusebenza kakhulu, ukuncamnga kuyenza ukusebenza ngokuchaphazela. Ngoko ke i-VFD ibalulekile kakhulu, ngoba iyahlawula isikhundla ngokucacileyo kwaye ngoko ispeed.

Ukulayisha kumotora kusenziwa nendlela enkulu. Ukuba kulayishwe ngaphezulu, umotora akakwazi ukugcina isikhathi esifanayo. Kubi ukuzibophelela ukulayisha kwemotora ukuba kubhekise kumakhonkco akhoyo ukusebenza ngokupheleleyo. Ekugqibeleni, uhlobo lwemotora lwenye yezinto ezinokuthintela. Imotora ezahlukeneyo zinezindlela zokwakha nezimali zokusebenza, zithintela indlela abasebenza ngayo kusikhathi esahlukene.

KuWeiying siyazi ukulawula isikhathi sesiqhelo se-AC sokutshisa amathuba akungakude kuphela ngokusebenzisa i-technology, kodwa futhi ukuziqonda lezi zinto eziphambili. Ngokujabulisa ukuzilungiselela ukuvimba, ukufreqwensi, ukulayisha nokuhlobo lwemotora, unokufumana ukulawula isikhathi ngokupheleleyo futhi uyenze umotora usebenze ngokupheleleyo kuzo zonke izinto ozizakuzenza.