Simba remagetsi rinodzorwa nePFC rakakwirira

PFC zvinoreva kugadzirisa simba, iyo inonyanya kushandiswa kuratidza kushanda zvakanaka kwesimba remagetsi nezvigadzirwa zvemagetsi. Kana simba rakawanda, kushanda zvakanaka kwesimba remagetsi kunowedzera.

Kune mhando mbiri dzePFC: passive PFC neactive PFC. Passive PFC inowanzoshandisa nzira ye inductance compensation kuderedza phase difference pakati pe fundamental current ne voltage ye AC input kuti ivandudze power factor, asi power factor ye passive PFC haina kunyanya kukwira uye inogona kusvika 0.7 ~ 0.8 chete; Active PFC inoumbwa ne inductance, capacitance uye electronic components, inogona kusvika 0.99. Idiki uye inogona kuwana high power factor, asi mutengo wayo wakakwira kupfuura we passive PFC.

PFC inowanzoshandiswa semagetsi anoshanda muPC, uye PFC ine hunhu hunotevera:

1) Voltage yekupinda inogona kubva pa90V kusvika 270V;

2) Simba remuchina wemagetsi rakakwirira kupfuura 0.98, uye rine zvakanakira zvekurasikirwa kushoma uye kuvimbika kwakanyanya;

3) PFC yeIC inogonawo kushandiswa semuchina wemagetsi wekuwedzera, saka transformer inomira haidiwi pakushandisa circuit inoshanda yePFC;

4) Kubuda kwemagetsi hakuchinji-chinji zvichienderana nemagetsi anopinza, saka magetsi anoburitsa akasimba anogona kuwanikwa;

5) Kubuda kwemagetsi eDC voltage ripple ye active PFC idiki kwazvo uye ine sine wave ye100Hz / 120Hz (kaviri simba frequency). Saka, simba rinoshandisa active PFC harifanirwe kushandisa capacitor yakakura yekusefa.

Active PFC inoumbwa ne inductance, capacitance uye electronic components. Ine vhoriyamu diki. Inogadzirisa current waveform kuburikidza ne special IC kuti idzore musiyano we phase pakati pe current ne voltage. Active PFC inogona kuwana high power factor - kazhinji inopfuura 98%, asi mutengo wacho wakakwirawo. Pamusoro pezvo, active PFC inogonawo kushandiswa se assistant power supply. Saka, mukushandisa active PFC circuit, standby transformer haidiwi, uye ripple ye output DC voltage ye active PFC idiki kwazvo. Iyi power supply haidi kushandisa capacitor yakakura ye filter.

Tichangobva kutanga kushandisa magetsi ekuchinjana e2000W ne3000W nePFC. Mutengo wacho wakanakira zvikuru. Wakachipa zvikuru pane magetsi akafanana ari pamusika, uye mashandiro awo akagadzikana. Kana uchifarira, ndapota taura nesu. Tatenda!