Abahlinzeki bemishini esekela i-frequency converter bakukhumbuza ukuthi isiguquli sefrikhwensi singashayela amamotho amaningana noma inqwaba ngasikhathi sinye, futhi ijubane lawo wonke amamotho lilawulwa imvamisa yokuphuma kwesiguquli sefrikhwensi efanayo. Ngokombono, ijubane lawo wonke ama-motor liyafana, futhi lingaqinisekisa ukukhuphuka nokuncipha kwejubane kanyekanye.
Nokho, ngenxa yomehluko ekukhiqizweni kwezimoto noma ubukhulu bomthwalo othwalwa injini, isivinini sangempela sokusebenza semoto ngayinye siyahlukahluka, futhi ayikho indlela ohlelweni yokulungisa lo mehluko, futhi ngeke kufakwe umshini ukulungisa umehluko. Ngakho-ke, kwezinye izimo lapho kungekho ukuxhumana phakathi kwamadivayisi, le ndlela yokulawula izoqongelela amaphutha nakanjani.
Cabangela isiguquli sefrikhwensi njengomthombo wamandla. Kwamanye amasistimu axhumeke ngokuqinile, izinjini ezihamba ngokushesha zingase zibe nemithwalo esindayo; Futhi izinjini ezihamba kancane zizoba nemithwalo elula. Kodwa ngenxa yokuthi iqhutshwa yi-converter ye-frequency efanayo, izinga lokushelela komthwalo liyakhuphuka futhi izinga lokushelela komthwalo wokukhanya liyehla. Lokhu kuzohlinzeka ngezinga elithile lekhono lokuzilungisa elizenzakalelayo, ekugcineni kugcine injini ngayinye isebenza ngendlela efanayo. Kodwa-ke, ukusatshalaliswa komthwalo akulingani, futhi amandla emoto kufanele akhuliswe ngezinga elilodwa lapho ukhetha injini.
Ngakho-ke, lapho usebenzisa isiguquli semvamisa ukushayela amamotho amaningi, naka lezi zindaba ezilandelayo:
1. Amandla emoto akufanele ahluke kakhulu, ngokuvamile angabi ngaphezu kwamazinga wamandla amabili.
2. Kungcono kakhulu ukuthi injini yenziwe ngumkhiqizi ofanayo. Uma kuyinjini enamandla afanayo, kungcono kakhulu ukusebenzisa iqoqo elifanayo ukuze uqinisekise izici zemoto ezingaguquki futhi wandise ukuhambisana kwesilinganiso sokushelela kwemoto (umehluko phakathi kwesivinini sozibuthe esizungezayo nesivinini se-rotor) ukuze uqinisekise ukusebenza kahle kokuvumelanisa.
3. Cabangela ngokugcwele ubude bekhebula lemoto. Uma ikhebula ende, likhulu amandla phakathi kwezintambo noma phakathi kwezintambo nomhlabathi. I-voltage ephumayo yesiguquli se-frequency iqukethe ama-harmonics anothile we-oda eliphezulu, azokwakha i-high-frequency capacitance grounding current futhi athinte ukusebenza kwesiguquli sefrikhwensi. Ubude bekhebula bubalwa ngokusekelwe kubude obuphelele bazo zonke izintambo ezixhunywe kusiguquli sefrikhwensi. Qinisekisa ukuthi ubude obuphelele bekhebula bungaphakathi kwebanga elivumelekile lesiguquli sefrikhwensi. Uma kudingekile, ireactor ephumayo noma isihlungi esiphumayo kufanele sifakwe ekugcineni kokuphumayo kwesiguquli sefrikhwensi.
4. Isiguquli sefrikhwensi singasebenza kuphela kumodi yokulawula ye-V/F (okuhlobene nemodi yokulawula i-vector), futhi ijika elifanele le-V/F kufanele likhethwe. Isilinganiso sokusebenza samanje sesiguquli sefrikhwensi kufanele sibe sikhulu kunezikhathi ezingu-1.2 kunesamba samaza alinganisiwe awo wonke amamotho.
Ukuze uvikele i-motor, i-relay yokushisa kufanele ifakwe phambi kwemoto ngayinye, futhi akukhuthazwa ukufaka inkinobho yomoya. Ngale ndlela, isifunda esiyinhloko singavulwa ngokuqhubekayo lapho i-motor igcwele ngokweqile, igwema umthelela ku-converter ye-frequency ngokwayo lapho isifunda esiyinhloko siphazamiseka ngesikhathi sokusebenza kwe-converter frequency.
Kuzinhlelo zokusebenza ezidinga ukubhuleka ngokushesha, ukuze ugweme ukugcwala ngokweqile ngesikhathi sokuma, iyunithi yokubhuleka kanye ne-resistor yokubopha kufanele yengezwe. Ezinye iziguquli zefrikhwensi yamandla aphansi sezivele zineyunithi yokubhuleka eyakhelwe ngaphakathi, ngakho-ke i-resistor yokubhuleka kuphela edinga ukuxhunywa.