Sekuwumkhuba ongeke wahlehliswa ukushayela injini nge-inverter.Enqubweni yokusetshenziswa kwangempela, ngenxa yobudlelwano obungenangqondo bokuqhathanisa phakathi kwe-inverter ne-motor, ezinye izinkinga zivame ukwenzeka.Lapho ukhetha i-inverter, kufanele uqonde ngokugcwele izici zomthwalo wemishini eqhutshwa yi-inverter.

Singahlukanisa imishini yokukhiqiza ibe yizinhlobo ezintathu: umthwalo wamandla ongaguquki, umthwalo we-torque ongaguquki, kanye nomthwalo wephampu yefeni namanzi.Izinhlobo ezihlukene zokulayisha zinezidingo ezihlukile zama-inverter, futhi kufanele siwafanise ngokunengqondo ngokuya ngemibandela ethile.

I-torque edingwa i-spindle yethuluzi lomshini kanye nekhoyili ne-uncoiler kumshini wokugaywa, umshini wephepha, nolayini wokukhiqiza ifilimu yepulasitiki ngokuvamile ihambisana ngokuphambene nesivinini sokuzungezisa, okuwumthwalo wamandla ongashintshi.Isici samandla angaguquki womthwalo kufanele sibe ngokobubanzi obuthile bokuhluka kwesivinini.Uma ijubane liphansi kakhulu, livinjelwe amandla emishini, lizoshintsha libe ngumthwalo we-torque oqhubekayo ngesivinini esiphansi.Lapho ijubane lemoto lilungiswa yi-flux kazibuthe eqhubekayo, kungumthethonqubo wejubane le-torque;lapho ijubane libuthakathaka, kungumthetho wejubane lamandla njalo.

Amafeni, amaphampu amanzi, amaphampu kawoyela nezinye izinto zokusebenza zizungeza nge-impeller.Njengoba ijubane liyancipha, i-torque iyancipha ngokusho kwesikwele sejubane, futhi amandla adingwa umthwalo alingana namandla wesithathu wejubane.Lapho umthamo womoya odingekayo kanye nezinga lokugeleza kwehliswa, isiguquli sefrikhwensi singasetshenziswa ukulungisa umthamo womoya kanye nezinga lokugeleza ngokusebenzisa ukulawulwa kwesivinini, okungawonga kakhulu ugesi.Njengoba amandla adingekayo ngesivinini esiphezulu enyuka ngokushesha kakhulu ngesivinini sokuzungezisa, imithwalo yefeni nepompo akufanele isetshenziswe ngaphezu kwemvamisa yamandla.

I-TL ihlala injalo noma ingashintshile kunoma yisiphi isivinini sokujikeleza.Lapho i-inverter ishayela umthwalo nge-torque engaguquki, i-torque ngesivinini esiphansi kufanele ibe nkulu ngokwanele futhi ibe namandla okwanele okulayisha ngokweqile.Uma kudingekile ukugijima ngesivinini esiphansi ngesivinini esiqinile, ukusebenza kokushisa kokushisa kwe-motor kufanele kucatshangelwe ukuze kugwemeke ukuthi injini ingashi ngenxa yokushisa ngokweqile.

Izinkinga okufanele zibhekwe lapho ukhetha isiguquli semvamisa:

Lapho i-motor imvamisa yamandla iqhutshwa yi-inverter, i-current motor izokhuphuka ngo-10-15%, futhi izinga lokushisa lizokhuphuka cishe ngo-20-25%.

Uma usebenzisa isiguquli semvamisa ukuze ulawule injini enesivinini esikhulu, kuzokwenziwa ama-harmonics amaningi.Futhi lawa ma-harmonics aphezulu azokhuphula inani lamanje lokuphuma kwe-inverter.Ngakho-ke, lapho ukhetha isiguquli sefrikhwensi, kufanele sibe igiya elilodwa elikhulu kunele motor evamile.

Uma kuqhathaniswa nezinjini ezijwayelekile zekheji lezingwejeje, izinjini zamanxeba zithambekele ekubeni nezinkinga zokukhubeka ngokweqile, futhi isiguquli sefrikhwensi esinomthamo omkhulu kunokwejwayelekile kufanele sikhethwe.

Uma usebenzisa isiguquli semvamisa ukushayela injini yokunciphisa igiya, ububanzi bokusetshenziswa bukhawulwa indlela yokugcoba yengxenye ejikelezayo yegiya.Kukhona ingozi yokuphelelwa uwoyela uma isivinini esilinganisiwe seqiwe.

● Inani lamanje le-motor lisetshenziswa njengesisekelo sokukhetha isiguquli, futhi amandla alinganiselwe enjini asetshenziselwa ireferensi kuphela.

● Ukukhishwa kwe-inverter kucebile kuma-harmonics aphezulu, okuzonciphisa isici samandla nokusebenza kahle kwe-motor.

● Uma i-inverter idinga ukusebenza ngezintambo ezinde, ithonya lezintambo ekusebenzeni kufanele licatshangelwe, futhi izintambo ezikhethekile kufanele zisetshenziswe uma kunesidingo.Ukuze kulungiswe le nkinga, i-inverter kufanele ikhulise ukukhethwa kwegiya elilodwa noma amabili.

●Ezikhathini ezikhethekile ezifana nokushisa okuphezulu, ukushintsha njalo, ukuphakama okuphezulu, njll., umthamo we-inverter uzokwehla.Kunconywa ukuthi i-inverter kufanele ikhethwe ngokuvumelana nesinyathelo sokuqala sokukhulisa.

● Uma kuqhathaniswa nokunikezwa kwamandla okuvama kwamandla, lapho isiguquli sishayela i-synchronous motor, umthamo wokuphuma uzoncishiswa ngo-10 ~ 20%.

●Ngomthwalo onokuguquguquka okukhulu kwetorque okufana nama-compressor nama-vibrator, kanye nemithwalo ephakeme kakhulu njengamaphampu adonsa amanzi, kufanele uqonde ngokugcwele ukusebenza kwefrikhwensi yamandla bese ukhetha inverter enkulu yamafrikhwensi.