Abahlinzeki bemishini esekela i-frequency converter bakukhumbuza ukuthi ngokufika kwenkathi yezimboni, ukusetshenziswa kweziguquli zefrikhwensi kuya ngokuya kuduma. Kudingeka siqinisekise ukukhethwa nokumataniswa kweziguquli zefrikhwensi ngokuqale sikhethe uhlobo olufanele ngokusekelwe kuhlobo lomthwalo. Umgomo ojwayelekile uwukufanisa uhlobo lwezimpawu zomthwalo nezici zesiguquli semvamisa.
Lapho ukhetha i-converter ye-frequency, inani lamanje le-motor langempela kufanele lisetshenziswe njengesisekelo sokukhetha isiguquli se-frequency, futhi amandla alinganiselwe we-motor angasetshenziswa kuphela njengereferensi. Okwesibili, kufanele kucatshangelwe ngokugcwele ukuthi ukukhishwa kwesiguquli se-frequency kuqukethe ama-harmonics aphezulu, angabangela isici samandla nokusebenza kahle kwe-motor ukuwohloka.
Ukufanisa i-voltage: I-voltage elinganiselwe yesiguquli sefrikhwensi ifana ne-voltage elinganiselwe yenjini.
Ukufanisa kwamanje: Kumaphampu ajwayelekile amaphakathi, umthamo wamanje okaliwe wesiguquli sefrikhwensi ufana nesilinganiso samanje senjini. Ukuze uthole imithwalo ekhethekile njengamaphampu amanzi ajulile, kuyadingeka ukubhekisela kumingcele yokusebenza kwezimoto ukuze unqume umthamo wamanje we-inverter kanye nokulayisha ngokweqile ngokusekelwe kumthamo omkhulu wamanje. Ukulungiselelwa kwamanje kwesiguquli semvamisa akufanele kube ngaphansi kwezikhathi ezingu-1.1 zamanje ezilinganiselwe zenjini, futhi umkhawulo wamanje uvame ukusetha izikhathi ezingu-1.5 zamanje ezilinganiselwe zenjini.
Mayelana One to Abaningi
Okukodwa kwabaningi kubhekisela kusiguquli semvamisa enamamotho kagesi amaningi. Umthamo we-frequency converter iyisamba samakhono amamotho amaningi (ngokusekelwe kwamanje), futhi kungcono ukuwakhulisa ngo-10% kuya ku-15%. Ngesikhathi esifanayo, kuyadingeka ukuqinisekisa ukuthi injini ngayinye ilayishwa ngendlela efanele, ngamandla amaningi ngangokunokwenzeka, ayisebenzi ingenalutho noma igcwele kakhulu. Injini ngayinye kufanele yenze eyayo imisebenzi, ibambisane, futhi ihlalisane ngokuthula; Kodwa uma isilawuli singesihle, eminye imithwalo iyasinda, eminye ilula, eminye iphelile, kanti eminye ayisebenzi. Ngenxa yalokho, injini enemithwalo esindayo iyashisa futhi iyashisa, futhi lonke uhlelo lukhubazekile, okungafaneleki ukulahlekelwa. Ngakho-ke, qaphela lapho ulibazisa isikhathi eside.
Ngakho-ke, ngokuphambene, singakwazi ukudonsa isiguquli esisodwa ngaphezulu nge-motor eyodwa kagesi? Impendulo: Kwenqatshelwe ngokuphelele !!!
Mayelana nezintambo
Uma isiguquli sefrikhwensi sidinga ukusebenza ngekhebula ende, kufanele kuthathwe izinyathelo zokucindezela ithonya lekhebula ende kumandla okuhlanganisa aphansi futhi kugwenywe ukuphuma okunganele kwesiguquli sefrikhwensi. Ngakho-ke, kulesi simo, umthamo wesiguquli sefrikhwensi kufanele ukhuliswe ngezinga elilodwa noma i-reactor ephumayo kufanele ifakwe ekugcineni kokuphumayo kwesiguquli sefrikhwensi. Uma isiguquli semvamisa sisetshenziswa ukulawula amamotho amaningana ngokuhambisana, kuyadingeka ukuthi ucabangele ukuthi ubude obuphelele bezintambo ukusuka kusiguquli semvamisa ukuya kumamotho bungaphakathi kwebanga elivumelekile lesiguquli semvamisa.
Mayelana nezimo zohlelo lokusebenza olukhethekile
1. Uma izinga lokushisa le-ambient liphezulu, imvamisa yokushintsha iphezulu, futhi ukuphakama kuphezulu, kuzokwenza ukuthi isiguquli semvamisa sinciphise umthamo waso, futhi isiguquli semvamisa sidinga ukukhuliswa ileveli eyodwa ukuze kukhethwe.
2. Uma usebenzisa i-converter ye-frequency ukushayela i-motor-speed motor, ngenxa yokusabela okuphansi kwe-motor, ukwanda kwe-harmonics ye-oda eliphezulu kuholela ekwandeni kwenani lamanje lokukhipha. Ngakho-ke, ukukhethwa kweziguquli zemvamisa zamamotho anesivinini esikhulu kufanele kube nomthamo othe ukudlula owamamotho ajwayelekile.
3. Uma ushayela amamotho angaqhumisi, isiguquli sefrikhwensi asinazo izakhiwo ezivikela ukuqhuma futhi kufanele zibekwe ngaphandle kwezindawo eziyingozi.
4. Uma ukhetha i-converter frequency, kubalulekile ukunaka ukuthi izinga layo lokuvikela lifana nesimo esikusayithi.
okunye
1. Uma usebenzisa i-converter ye-frequency ukushayela i-rotor yesilonda e-asynchronous motor, iningi lamamotho akhona asetshenziswa. Kulula ukubangela ukukhubeka kwe-overcurrent ngenxa ye-ripple current, ngakho-ke isiguquli sefrikhwensi esinomthamo omkhulu kunokuvamile kufanele sikhethwe.
2. Ngemithwalo ene-torque enkulu eguquguqukayo njengama-compressor kanye nemishini yokudlidliza, kanye nemithwalo ephakeme kakhulu njengamaphampu we-hydraulic, kuyadingeka ukuqonda ukusebenza kwemvamisa yamandla bese ukhetha isiguquli se-frequency esinomphumela wamanje olinganisiwe omkhulu kunomkhawulo wamanje wamanje.
3. Uma usebenzisa i-converter ye-frequency ukuze ulawule i-Roots blower, ngenxa yamanje ephezulu yokuqala, kubalulekile ukunaka ukuthi umthamo we-frequency converter mkhulu ngokwanele uma uyikhetha.
4. Uma usebenzisa isiguquli semvamisa ukushayela injini yokunciphisa igiya, ububanzi bokusetshenziswa bukhawulwa indlela yokugcoba yezingxenye ezijikelezayo zegiya. Ungeqi isivinini esiphezulu esivumelekile.
5. Izinjini zesigaba esisodwa azifaneleki i-frequency converter drive.
Umthelela nezilinganiso zebanga phakathi kwesiguquli semvamisa kanye nenjini kusistimu
Ezizindeni zokusetshenziswa kwezimboni, ibanga phakathi kwesiguquli sefrikhwensi nokufakwa kwemoto lingahlukaniswa cishe libe yizimo ezintathu: ibanga elide lomthombo, ibanga eliphakathi nendawo, nebanga elifushane. Ngaphakathi kwe-20m kuthathwa njengebanga eliseduze, i-20-100m ibhekwa njengebanga eliphakathi, futhi ngaphezu kwe-100m ibhekwa njengebanga elide.
Uma ibanga eliphakathi kwe-frequency converter kanye ne-motor lingaphakathi kwe-20m, lingaxhunywa ngokuqondile ku-converter frequency;
Ngokuxhumeka kwebanga eliphakathi phakathi kweziguquli zemvamisa namamotho asukela ku-20m kuya ku-100m, kuyadingeka ukulungisa imvamisa yenkampani yenethiwekhi yesiguquli semvamisa ukuze kuncishiswe ama-harmonics nokuphazamiseka; Ngokuxhunywa kwebanga elide okungaphezu kuka-100m phakathi kweziguquli zefrikhwensi namamotho, akufanele nje kuphela ukuthi ifrikhwensi yenkampani yenethiwekhi yehliswe ngokusesilinganisweni, kodwa nama-reactor aphumayo e-AC kufanele afakwe.