Umhlinzeki weyunithi yokubhuleka ye-frequency converter uyakukhumbuza:
1. Ukubaluleka kokubhuleka kokukhiqiza amandla ngesikhathi sokusebenza kwemvamisa yamandla yilokhu:
1) Isibonelo, lapho uphakamisa i-asynchronous motor, idonswa ukuze ikhiqize ugesi emini phakathi nenqubo yokuphakamisa nokuwa. Ngalesi sikhathi, i-asynchronous motor isesimweni sokukhiqiza, futhi i-current current iyona i-braking current. Ngalesi sikhathi, amandla adonsela phansi ento esindayo aguqulwa abe amandla kagesi futhi abuyiselwe kugridi yamandla;
I-2) Okusho ukuthi, indlela yokuphakamisa izinto ezisindayo lapho i-asynchronous motor ijikeleza phambili, nendlela yokwehlisa izinto ezisindayo lapho ujikeleza emuva, ngaphandle kokukhathazeka ngezinto ezinzima eziwa lapho injini ijikeleza emuva;
I-3) I-braking yokukhiqiza amandla, ngaphandle kwesidingo sanoma iyiphi impahla, isimo esivamile sokusebenza sama-asynchronous motors, okungukuthi, isimo sokusebenza se-quadrant ezine. "Ugesi" noma "ukukhiqiza amandla" kunqunywa umthwalo othwalwayo, ukushintsha ngokuzenzakalelayo, ukuzinza, ukuphepha, nokwethembeka;
2. Ukubaluleka kokubhuleka ukusetshenziswa kwamandla ngesikhathi sokusebenza kwemvamisa yamandla yilokhu:
1) Indlela esetshenziswa lapho injini idinga ukuma ngokushesha ngemva kokuma;
2) Ngemva kokumisa nokunqamula amandla, sebenzisa ngokushesha i-current eqondile kuma-motor winding ukuze ukhiqize inkambu kazibuthe engashintshi. Ngalesi sikhathi, i-rotor, ehamba ngesivinini esiphezulu se-inertial, izosika imigqa yamagnetic field futhi ikhiqize ugesi. I-rotor current ekhiqizwa amandla kagesi we-rotor yi-braking current, eguqula amandla e-kinetic we-rotor kanye nokunyakaza kwe-inertial yokulayisha ibe amandla kagesi, abese esetshenziswa ukumelana nokuvunguza kwe-rotor, okubangela ukushisa kwe-rotor;
3. Ngesikhathi sokusebenza kwefrikhwensi eguquguqukayo:
1) Indawo yokupaka ethambile ingeye-asynchronous motor power generation braking. Ama-asynchronous motors aguqula amandla e-inertial kinetic we-rotor futhi alayishe abe amandla kagesi, alungiswa yi-inverter circuit bese engena esigabeni se-DC, okubangela ukuthi i-voltage yesigaba se-DC iphakame ngoba la mandla kagesi awakwazi ukubuyiselwa kugridi;
I-2) Iziguquli zemvamisa, ukukhiqizwa kwamandla e-asynchronous motor kanye ne-braking kungabangela ukuvikelwa kwe-overvoltage esigabeni se-DC, okuyinto embi. Isixazululo siwukusebenzisa ama-braking resistors ukushisa la mandla kagesi;
3) Kukhona futhi amayunithi empendulo angahlehlisa amandla okubhuleka akhiqiziwe abe namandla e-AC futhi awanike amandla abuyele kugridi, kodwa umphumela awubushelelezi futhi usebenza ngempumelelo njengalapho amamotor asynchronous exhunywe ngokuqondile kugridi;
4. Ngesikhathi sokusebenza kwefrikhwensi eguquguqukayo:
I-1) Ngesikhathi sokusebenza kwemvamisa eguquguqukayo, uma kunesitobhi samahhala, kusho ukuthi inverter iyeka ukukhipha amandla e-AC futhi inikeze amandla e-DC kumotho ye-asynchronous;
2) Ngalesi sikhathi, ukusongwa kwe-asynchronous motor kukhiqiza inkambu kazibuthe ye-DC engaguquki ngaphansi kwesenzo se-DC yamanje, i-rotor isika umugqa wamandla kazibuthe ukuze ikhiqize ugesi, futhi isebenzise amandla okubhuleka ekujikeni kwe-rotor, okufana nokubhuleka kokusetshenziswa kwamandla kwemoto ngesikhathi sokusebenza kwemvamisa yamandla;
3) Ngemuva kokuthi isiguquli sefrikhwensi sime ngokukhululeka, asisakhiphi amandla e-AC kodwa sikhipha amandla e-DC, okuyisici sokubhuleka kokusetshenziswa kwamandla e-DC;