Umphakeli wedivayisi yempendulo yamandla yesiguquli sefrikhwensi ukukhumbuza ukuthi isiguquli sefrikhwensi silungisa isivinini ngokushintsha imvamisa yokunikezwa kwamandla enjini. Kuyindlela efanelekile yokulawula isivinini nokusebenza okuphezulu. Isiguquli sefrikhwensi iyisisetshenziswa sesekethe ye-elekthronikhi esebenzisa umsebenzi ovuliwe wamadivayisi e-semiconductor yamandla kagesi ukuze kuzuzwe ukuguqulwa kwamandla aphezulu kanye nokulawula amandla kagesi, futhi ingalawulwa ngokunembile futhi iboniswe.
Ngenxa yokuphakama kweziguquli zefrikhwensi, izinkambu zabo zohlelo lokusebenza ziya ngokuya ziba banzi, futhi ubuchwepheshe obusetshenziswayo bukhula njalo, kuyilapho kulandelwa ukwenziwa kwe-miniaturization yeziguquli zemvamisa. Ngenxa yokwamukelwa kobuchwepheshe obusha bokulawula ama-electrode esizukulwaneni esisha sama-IGBT, i-saturation voltage (Ucesat) yesixhumi esibonakalayo se-collector emitter inciphe kakhulu. Ngakho-ke, ukusetshenziswa kwalesi sisetshenziswa esisha kunokulahlekelwa okuncane futhi kunomphumela wokunciphisa ukukhiqizwa kokushisa nokuqeda ukulahlekelwa.
I-synchronous speed expression of an AC motor is n=60f (1-s)/p (1), lapho n isivinini se-asynchronous motor; F imvamisa ye-asynchronous motor; S izinga lokushelela kwemoto; P inombolo yezigxobo zemoto kagesi. Kusuka kufomula, siyazi ukuthi isivinini n silingana nemvamisa f. Uma nje i-frequency f ishintshiwe, isivinini se-motor singashintshwa. Lapho i-frequency f ishintsha phakathi kwebanga lika-0-50Hz, ububanzi bokulungiswa kwesivinini semoto bukhulu kakhulu.
Isizathu sokuthi kungani ukulawulwa kwesivinini esishintshashintshayo konga amandla kungenxa yokuthi wonga amandla kagesi amoshayo ngesikhathi sokusebenza kwesivinini esigcwele. Ikakhulukazi ezinhlelweni zokulawula isivinini esivaliwe, njengezinhlelo zokuhlinzeka ngamanzi okucindezela njalo, ukuhudula okudingekayo kufinyelelwa, cishe ukuqeda ngokuphelele imfucuza ngesikhathi sokusebenza kwesistimu yokudonsa. Lokhu kuzuze ukongiwa kwamandla ngezinga elikhulu.
Eqinisweni, kusekhona isenzakalo samahhashi amakhulu adonsa izimoto ezincane ezikhathini eziningi, futhi kukhona amandla amakhulu kulokhu. Kuyiqiniso elingephikwe ukuthi iziguquli zefrikhwensi zingonga ugesi.
Eqinisweni, imiphumela ethile ezuzwe ngabaguquli bemvamisa ngisho nemboni yezogesi zamandla imi kanje:
1) Ukuthuthukisa ngokuqhubekayo ukusebenza kahle kokuguqulwa kwamandla nokunciphisa ukulahlekelwa okubekwe eceleni.
2) Gwema ukungcoliswa kwamandla, nciphisa ukuhambisana kwamanje, futhi uthuthukise isici samandla ngangokunokwenzeka.
3) Thuthukisa ukuhambisana kwe-electromagnetic kwamadivayisi wokuphakela amandla nezinhlelo.
4) Yehlisa umsindo kagesi.
5) Qaphela ukulawulwa kokusebenza okuphezulu.
Ifeni yokususa uthuli, isistimu yamanzi, nohlelo lokuphakela lwesitshalo esithile sensimbi nakho kuye kwajwayelana nezici zeziguquli zefrikhwensi. Ngemuva kokuqinisekiswa kwethiyori okuningi kanye nokuhlolwa okusebenzayo, iziguquli zefrikhwensi zamukelwe, okwenza iminikelo ethile embonini yaseShayina yokonga amandla kanye nokunciphisa ukungcola.