Ukunikezwa kwamandla okushintsha okulawulwa yi-PFC ephezulu

I-PFC iyincazelo yokulungiswa kwezici zamandla, okusetshenziselwa kakhulu ukuchaza ukusebenza kahle kwamandla kagesi ngemikhiqizo kagesi. Uma isici samandla siphezulu, kulapho ukusebenza kahle kwamandla kagesi kuphezulu.

Kunezinhlobo ezimbili ze-PFC: i-PFC engasebenzi kanye ne-PFC esebenzayo. I-PFC engasebenzi ngokuvamile isebenzisa indlela yesinxephezelo se-inductance ukunciphisa umehluko wesigaba phakathi kwamandla ayisisekelo kanye ne-voltage yokufakwa kwe-AC ukuze kuthuthukiswe amandla, kodwa amandla e-PFC engasebenzi awaphezulu kakhulu futhi angafinyelela ku-0.7 ~ 0.8 kuphela; I-PFC esebenzayo yakhiwe yi-inductance, i-capacitance kanye nezingxenye ze-elekthronikhi, ingafinyelela ku-0.99. Incane futhi ingafinyelela amandla aphezulu, kodwa izindleko ziphakeme kuneze-PFC engasebenzi.

I-PFC ivame ukusetshenziswa njengomthombo wamandla osebenzayo ku-PC, futhi i-PFC inezici ezilandelayo okungenani:

1) I-voltage yokufaka ingaba kusuka ku-90V kuya ku-270V;

2) Isici samandla omugqa siphakeme kuno-0.98, futhi sinezinzuzo zokulahlekelwa okuphansi kanye nokuthembeka okuphezulu;

3) I-PFC ye-IC ingasetshenziswa futhi njengomthombo wamandla osizayo, ngakho-ke i-transformer elindile ayidingeki ngokuvamile ekusebenziseni isekethe esebenzayo ye-PFC;

4) Umphumela awuguquguquki nge-voltage yokufaka, ngakho-ke kungatholakala i-voltage yokuphuma eqinile kakhulu;

5) I-DC voltage ripple ephumayo ye-PFC esebenzayo incane kakhulu futhi iveza igagasi le-sine elingu-100Hz / 120Hz (okuphindwe kabili kunemvamisa yamandla). Ngakho-ke, ukunikezwa kwamandla okusebenzisa i-PFC esebenzayo akudingeki kusebenzise i-capacitor yesihlungi esinamandla amakhulu.

I-Active PFC yakhiwe nge-inductance, capacitance kanye nezingxenye ze-elekthronikhi. Inevolumu encane. Ilungisa i-waveform yamanje nge-IC ekhethekile ukuze ikhokhele umehluko wesigaba phakathi kwamanje kanye ne-voltage. I-Active PFC ingafinyelela amandla aphezulu - ngokuvamile angaphezu kuka-98%, kodwa izindleko nazo ziphakeme kakhulu. Ngaphezu kwalokho, i-Active PFC ingasetshenziswa njengomthombo wamandla osizayo. Ngakho-ke, ekusebenziseni isekethe ye-Active PFC, i-standby transformer ayidingeki, futhi i-ripple ye-DC voltage ephumayo ye-Active PFC incane kakhulu. Lokhu kunikezwa kwamandla akudingi ukusebenzisa i-capacitor yesihlungi esinamandla amakhulu.

Muva nje sethule izinsiza zikagesi zokushintsha ze-2000W kanye ne-3000W nge-PFC. Intengo inenzuzo kakhulu. Ishibhile kakhulu kunokunikezwa kukagesi okufanayo emakethe, futhi ukusebenza kuzinzile kakhulu. Uma unentshisekelo kukho, sicela usithinte. Ngiyabonga!