Polarity Reversing Rectifier (PRR) chishandiso chemagetsi cheDC chinogona kuchinja polarity yezvinobuda. Izvi zvinoita kuti chinyanye kubatsira mumabasa akaita se electroplating, electrolysis, electromagnetic braking, uye DC motor control, uko kuchinjwa kwenzira yemagetsi kunodiwa.
1. Mashandiro Azvo
Magadzirirwo emagetsi anowanzo shandura AC kuita DC ne polarity yakatarwa. MaPRR anovakira pane izvi nekushandisa michina yemagetsi inodzorwa—yakadai se thyristors, IGBTs, kana MOSFETs—kudzosera kumashure kuyerera kwemagetsi. Nekugadzirisa kona yekupfura kana kutevedzana kwekuchinja, mudziyo unogona kuchinjisa zvakanaka kana nekukurumidza kubuda kubva pane zvakanaka kuenda pane zvakaipa.
2. Chimiro cheDunhu
Kazhinji, PRR inoshandisa muchina wekugadzirisa bhiriji unodzorwa zvizere:
Kupinza kweAC → Bhiriji Rinodzora Rectifier → Sefa → Rodha
Bhiriji rine zvinhu zvina zvinodzoreka. Nekutarisa kuti ndezvipi zvishandiso zvinofambisa uye riini, zvinobuda zvinogona kuchinja pakati pe:
▪ Positive polarity: magetsi anoyerera kubva panzvimbo yakanaka kuenda kumutoro.
▪ Negative polarity: kuyerera kwemagetsi nenzira yakasiyana.
Matekiniki emagetsi anogonawo kugadziriswa nekushandura angle yetrigger (α), zvichibvumira kudzora kwakanyatsojeka kwe polarity uye hukuru.
3. Mashandisirwo
(1) Kugadzira Magetsi & Kugadzira Magiya
Mamwe maitiro anoda kuti magetsi adzoke nguva nenguva kuti awedzere kunaka kwekufukidza. MaPRR anopa DC supply inodzorwa, inotenderera mativi maviri kuti iite zvinodiwa izvi.
(2) Kudzora Mota yeDC
Inoshandiswa pakushanda mberi/kumashure uye pakubhureka patsva, ichidzosera simba kuhurongwa.
(3) Kubhuraki kweMagineti
Kudzosera simba remagetsi kunoita kuti masisitimu emakanika akwanise kubhurwa nekukurumidza kana kuti kusunungurwa kwakarongeka.
(4)Rabhoritari & Kuongororwa
MaPRR anopa purofiti yebipolar DC inogona kurongwa, yakakodzera kutsvagurudza, kuyedza, uye kuyedza kunoda flexible polarity.
Zvigadziriso zvinodzosera simba remagetsi zvinodzoreredza simba remagetsi zviri kuramba zvichikosha muindasitiri nekutsvaga. Zvinosanganisa kudzora simba remagetsi kunochinjika nekushandura simba zvinobudirira, zvichiita kuti zvive zvakakosha kune akawanda mashandisirwo emagetsi emagetsi emazuva ano. Sezvo tekinoroji yemidziyo nekudzora ichivandudzika, maPRR anotarisirwa kushandiswa zvakanyanya.
Nguva yekutumira: Gumiguru-17-2025
