I-Polarity Reversing Rectifier

I-Polarity Reversing Rectifier (PRR) sisixhobo sonikezelo lwamandla e-DC esinokutshintsha i-polarity yemveliso yayo. Oku kuyenza ibe luncedo ngakumbi kwiinkqubo ezinje nge-electroplating, i-electrolysis, i-electromagnetic braking, kunye nolawulo lwemoto ye-DC, apho kufuneka ukutshintshwa kwecala langoku.

1.Isebenza njani
Abahlaziyi abaqhelekileyo baguqula i-AC ukuya kwi-DC kunye ne-polarity esisigxina. I-PRRs yakha kule nto ngokusebenzisa izixhobo zamandla ezilawulekayo-ezifana ne-thyristors, IGBTs, okanye i-MOSFETs-ukubuyisela umva ukuhamba kwangoku. Ngokuhlengahlengisa i-angle yokudubula okanye ukulandelelana kokutshintsha, isixhobo sinokucotha okanye sitshintshe ngokukhawuleza isiphumo sisuka kwipositive ukuya kwi-negative.

2.Isakhiwo seSekethe
Ngokuqhelekileyo, iPRR isebenzisa isilungisi sebhulorho esilawulwa ngokupheleleyo:
Igalelo le-AC → Ibhulorho yoLungiso oluLawulweyo → Isihluzo → Layisha
Ibhulorho inezinto ezine ezilawulekayo. Ngokulawula ukuba zeziphi izixhobo eziqhuba kwaye nini, imveliso inokutshintsha phakathi:
▪ I-Positive polarity: iqukuqela langoku ukusuka kwi-positive terminal ukuya kumthwalo.
▪ I-Polarity engalunganga: umsinga uqukuqela kwicala elahlukileyo.
Amanqanaba ombane angalungiswa kwakhona ngokuguqula i-angle ye-trigger (α), ukuvumela ulawulo oluchanekileyo lwe-polarity kunye nobukhulu.

3.Izicelo
(1)I-Electroplating & Electrolysis
Ezinye iinkqubo zifuna langoku ukuhlehla ngamaxesha ukuphucula umgangatho wokwambathisa. IiPRRs zibonelela ngobonelelo lweDC olulawulekayo, oluhamba kabini ukuhlangabezana nale mfuno.
(2)Ulawulo lweeMoto zeDC
Isetyenziselwa ukuqhubela phambili / umva umsebenzi kunye ne-braking yokuvuselela, ukubuyisela amandla kwinkqubo.
(3)Ukunyanzeliswa koMbane
Ukubuyisela umva kwangoku kwenza ukuba uqhoboshe ngokukhawuleza okanye ukukhululwa okulawulwayo kweenkqubo zoomatshini.
(4)ILebhu kunye noVavanyo
I-PRRs ibonelela ngemveliso ye-bipolar ecwangcisiweyo ye-DC, ilungele uphando, uvavanyo, kunye nemifuniselo efuna i-polarity eguquguqukayo.

Izilungisi zokubuyisela umva ipolarity ziya zisibaluleka ngakumbi kushishino nakuphando. Badibanisa ulawulo lwepolarity oluguquguqukayo kunye noguqulo lwamandla olusebenzayo, lubenza babaluleke kakhulu kwizicelo ezininzi zale mihla zombane. Njengoko isixhobo kunye neteknoloji yokulawula iphucula, iiPRRs kulindeleke ukuba zifumane ukusetyenziswa okubanzi ngakumbi.