A Polarity Reversing Rectifier (PRR) ndeye DC magetsi emagetsi anogona kushandura polarity yekubuda kwayo. Izvi zvinoita kuti inyanyo batsira mukuita senge electroplating, electrolysis, electromagnetic braking, uye DC mota control, uko kuchinja kwazvino kwakakosha.
1.Inoshanda Sei
Yenguva dzose inogadzirisa inoshandura AC kuita DC ine yakagadziriswa polarity. MaPRR anovaka pane izvi nekushandisa magetsi anodzoreka-senge thyristors, IGBTs, kana MOSFETs-kudzoreredza kuyerera kwazvino. Nekugadzirisa kona yekupfura kana kuchinjika kutevedzana, mudziyo unogona mushe kana kukurumidza kupepeta kubuda kubva kune yakanaka kuenda kune yakaipa.
2.Circuit Structure
Kazhinji, PRR inoshandisa yakanyatsodzorwa bhiriji rectifier:
AC Input → Inodzorwa Rectifier Bridge → Sefa → Rodha
Zambuko rine zvinhu zvina zvinodzoreka. Nekugadzirisa kuti ndezvipi zvishandiso zvinoitisa uye riini, zvinobuda zvinogona kuchinja pakati:
▪ Positive polarity: ikozvino inoyerera ichibva kune yakanaka terminal ichienda kunotakura.
▪ Negative polarity: ikozvino inoyerera ichienda kune rimwe divi.
Voltage mazinga anogona zvakare kugadziridzwa nekushandura trigger angle (α), ichibvumira kutonga chaiko kwezvose zviri zviviri polarity uye ukuru.
3.Applications
(1) Electroplating & Electrolysis
Mamwe maitiro anoda ikozvino kuti adzoke nguva nenguva kuti avandudze kunaka kwekupfeka. PRRs inopa inodzoreka, bidirectional DC inopa kuti isangane neizvi zvinodiwa.
(2) DC Motor Control
Inoshandiswa kumberi / kudzosera kumashure uye regenerative braking, kudzorera simba kuhurongwa.
(3)Electromagnetic Braking
Kudzoreredza ikozvino kunogonesa kukurumidza mabhureki kana kudzorwa kuburitswa kwemakanika masisitimu.
(4)Murabhoritari & Kuongorora
MaPRR anopa programmable bipolar DC kubuda, yakanakira kutsvagisa, kuyedza, uye zviedzo zvinoda kuchinjika polarity.
Polarity-reversing rectifiers ari kuwedzera kukosha muindasitiri nekutsvaga. Ivo vanosanganisa flexible polarity control pamwe neanoshanda simba shanduko, zvichiita kuti ive yakakosha kune akawanda emazuva ano magetsi emagetsi maapplication. Sezvo mudziyo uye tekinoroji yekudzora ichivandudza, maPRR anotarisirwa kuwana kushandiswa kwakakura.
Nguva yekutumira: Oct-17-2025
