Umphakeli weyunithi yempendulo yamandla ukukhumbuza ukuthi ukhethe isiguquli esifanelekile sosayizi wenjini, ngezinye izikhathi uze ufike kusayizi owodwa. I-inverter enamandla amakhulu inesici samandla aphansi, ngakho-ke kungcono ukufaka i-AC reactor ekugcineni kokufaka kwe-inverter.
Lokhu okokuthuthukisa isici samandla nokucindezela ama-harmonics wemvamisa ephezulu. Uma uqala futhi ubhuleka njalo, kuyadingeka ukufaka iyunithi yokubhuleka kanye ne-resistor yokubopha.
Uma udinga ukunciphisa umsindo, ungakhetha isiguquli sefrikhwensi esipholile ngamanzi; Uma i-braking iyadingeka, kuyadingeka ukukhetha i-chopper yamandla kanye ne-braking resistor. Kungenjalo, imikhiqizo emine yamaquadrant ingakhethwa ukunikeza impendulo yamandla kugridi futhi yonge amandla; Uma kukhona ugesi we-DC kuphela esizeni, umkhiqizo olula we-inverter (osebenzisa ugesi we-DC) ungakhethwa ukushayela injini.
Isisekelo sokukhetha isiguquli se-frequency ukuthi ijika lamanje lesiguquli se-frequency lihlanganisa ijika lamanje lomthwalo wemishini. Nazi ezinye izindaba ezisebenzayo okufanele sizinake lapho sikhetha isiguquli semvamisa.
1. Inhloso yokusebenzisa ukuguqulwa kwemvamisa; Ukulawulwa kwe-voltage okungaguquki noma ukulawulwa kwamanje okungaguquki, njll.
2. Uhlobo lomthwalo we-converter frequency; Kumaphampu afana namaphampu e-vane noma amaphampu e-volumetric, ukunakwa okukhethekile kufanele kukhokhwe kwijika lokusebenza lomthwalo, njengoba ijika lokusebenza linquma indlela yokufaka isicelo.
3. Inkinga yokufanisa phakathi kwesiguquli semvamisa nomthwalo;
Ukufanisa i-voltage: I-voltage elinganiselwe yesiguquli sefrikhwensi ifana ne-voltage elinganiselwe yomthwalo.
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 kwamandla aphezulu.
Ukumatanisa i-torque: Lesi simo singase senzeke ngaphansi kwemithwalo ye-torque engashintshi noma ngamadivayisi okwehlisa amandla.
Uma usebenzisa i-converter frequency ukuze ushayele 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.
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.
6. Kwezinye izimo zohlelo lokusebenza olukhethekile, njengezinga lokushisa eliphezulu nokuphakama, kungabangela isiguquli sefrikhwensi ukuthi sinciphise umthamo waso, futhi umthamo wokuguqula imvamisa kufanele ukhuliswe ngegiya elilodwa.
Yiqiniso, ezimweni lapho izidingo eziqinile zibekwe ohlelweni lokulawula ukunyakaza kwezimoto, kuyadingeka ukuhlola ngokunembile ukuphumelela kokukhethwa kokuguqula imvamisa. Indlela eqondile wukwenza ukuhlola ngohlelo lokuhlola izinjini. Kodwa ukuze kuphothulwe ukuhlolwa okuphelele kwesiguquli sefrikhwensi kanye nesistimu yemoto, izidingo eziphakeme ziye zabekwa phambili zohlelo lokuhlola izinjini, njengomkhawulokudonsa ophezulu, ukulinganisa okunembayo kwepharamitha kagesi okunembayo, ukuhlola kokuvumelanisa kwamashaneli amaningi, njll. Ingabe usufundile? Ngethemba ukuthi lesi sihloko singaba usizo kuwo wonke umuntu. Uma ufuna ukufunda ulwazi oluthe xaxa oluhlobene, ungaqhubeka nokusilandela.