Umhlinzeki weyunithi ye-frequency converter braking ukukhumbuza ukuthi njengethuluzi lokulawula i-electronic elivamile kakhulu ekulawuleni imoto, isiguquli se-frequency sinezinzuzo eziningi ezifana nesivinini esinembile nokulawulwa kwamandla kagesi, izindlela zokulawula eziguquguqukayo nezihlukile, njll. Nakuba ukusetshenziswa kweziguquli zefrikhwensi kujwayelekile futhi kunolwazi, abantu abaningi bangase bangazazi ngempela izimfihlo ezingaphakathi kwamasekethe abo.
I-1, Iziguquli eziningi esizibonayo ziwumphumela wezigaba ezintathu, futhi abanye abantu bakholelwa ukuthi ama-transformer amathathu amanje kufanele asetshenziswe ngaphakathi ukuze abone ukusebenza kwesigaba ngasinye. Kodwa-ke, empeleni, i-95% ye-frequency converters isebenzisa indlela yokutholwa yamanje yezigaba ezimbili (yebo, ama-transformer amabili kuphela asetshenziswa), futhi inani lamanje lesigaba esisele libalwa yi-converter ye-frequency esebenzisa ama-circuit amplifier okusebenza ngokusekelwe emisinga yesigaba sesibili esilinganisiwe.
2, Lapho silungisa noma sidiliza isiguquli esinamandla, asikho isidingo sokusebenzisa i-multimeter ukuthola i-voltage yebhasi ye-DC. Sidinga nje ukunaka kakhulu izibani zezinkomba zamandla kumjikelezo wangaphakathi we-inverter. Le nkomba ye-LED ayibonisi kuphela ukuthi ukunikezwa kwamandla kujwayelekile noma cha, kodwa futhi kukhombisa ngokunembile ukuvuza kwe-voltage yebhasi ye-DC (empeleni i-voltage ye-capacitor yokuhlunga) ngemuva kokuhluleka kwamandla. Lapho ukukhanya kucisha, kukhombisa ukuthi amandla kagesi ebhasi le-DC ehle ngaphansi kuka-80V, futhi udinga kuphela ukulinda isikhashana ukuze uqhubeke nomsebenzi olandelayo ngokuzethemba.
3, Ukunikezwa kwamandla okushintsha ngaphakathi kwesiguquli semvamisa kuvame ukukhipha amazinga kagesi amaningana, okuhlanganisa ± 15V, +24V, kanye+5V. Phakathi kwalawa ma-voltage okukhiphayo, okubaluleke kakhulu yisekethe engu+5V. Ngenxa yokuthi i-voltage yalesi sekethi inikezwa ku-CPU "yobuchopho" yesiguquli se-frequency, uma sekunokushintshashintsha kwe-voltage yalesi sekethi, isiguquli semvamisa sizohluleka nakanjani ukusebenza ngokujwayelekile! Yingakho ingxenye yamandla eshintshayo ye-converter frequency isebenzisa le-voltage njengento yokuqapha.
I-4, Ngenxa yokweqile, i-overcurrent namanye amaphutha ngesikhathi sokusebenza, kulula kakhulu ukubangela umonakalo ezingxenyeni zokuguqula amandla e-IGBT/IPM zesiguquli semvamisa. Lezi zingxenye ngokuvamile ziyabiza futhi izinga lokusungula langempela alikwazi ukuqinisekiswa ngendlela enokwethenjelwa. Enqubweni yokulungisa iziguquli zemvamisa yamandla aphansi esigaba esisodwa, kutholwe ngenani elikhulu lezibonelo zokulungisa ukuthi iziguquli zemvamisa zesigaba esisodwa se-1.5-5.5KW, ngemuva kokulimala kwebhuloho le-IGBT langaphakathi kanye nebhuloho lokulungisa, izingxenye ezimbili ezivela kumpheki wokungenisa zingasetshenziselwa ukushintshwa. Uma nje ukusebenza kwesiguquli sefrikhwensi kuzinzile futhi kunokwethenjelwa, futhi lezi zingxenye zishibhile futhi kulula ukuzithola, kuyindlela enhle yokunciphisa izindleko zokunakekela.