Isibonelo Sokukhethwa Kwedivayisi Yokulawula Ukudluliswa Kwezimoto (isiqalisi esithambile)

Ibhuloho le-thyristor rectifier lezigaba ezintathu liyadingeka ukulawula injini ye-DC.Idivaysi efanelekile ibalulekile ukuze kuqinisekiswe ukusebenza okuzinzile kwesiqalisi esithambile ukulawula injini futhi kufanele ikhethwe ukuze ihambisane nempahla yemoto kanye nemfuneko yesistimu.Umgomo wokukhetha unikezwe ngezansi:

1. Isimo: I-voltage yokufaka i-Vumugqa=380V (3N 50Hz), okukhipha i-DC yamanje Id=3600A, imodi yokupholisa ye-thyristor ukupholisa umoya, izinga lokushisa lemvelo TA=40℃, ukuhlinza okufunayo okwamanje II-TSM=20KA.

2.Ukukhethwa kwamandla kagesi: inani eliphakeme kakhulu le-voltage elinganiselwe

VD(max)=*VI=*380=537V, i-coefficient elwa nomthelela ibhekwa njengo-2.5, ifomula yokubala ibanga le-voltage ithi: VI-DSM≥537V*2.5= 1343V, ngakho

VI-DSM= VI-RSM= 1400V.

3.Ukukhethwa kwamanje: ngenxa yohlaka lwe-thyristor kuhlukile ngaphezu kwamanje okuhlukile, ngakho-ke kufanele sibale inani elifanele lamanje ku-thyristor nge-Vrrm=1400V.Id=3600A, isilinganiso samanje esidlula ku-thyristor I ngayinyeT=1200A, umthamo olinganiselwe we-thyristor IT(AV)=1200A*2.5=3000A.

4.I-heatsink epholisa umoya enjalo izokhethwa ngokuya ngohlaka lwe-thyristor.

5.I-thyristor kanye ne-heatsink kufanele kukhethwe ngokumelene nesicelo kanye nemfuneko enemininingwane yesistimu yokulawula imoto.Isigaba sokulawula i-thyristor ne-heatsink ekhiqizwe i-Jiangsu Yangjie Runau Semiconductor Co ihlanganiswe kakhulu nesimo sobuchwepheshe bobuciko bokukhiqiza idivayisi ye-semiconductor yamandla aphezulu.Isetshenziswa kabanzi ekusetshenzisweni kokulawula ukuhanjiswa kwezimoto.Sicela uxhumane nochwepheshe bethu ukuze ukhethe okulungilei-thyristorfuthiusinki oshisayoukuze uthole ukusebenza okuhle kakhulu kohlelo lwakho lokusebenza.


Isikhathi sokuthumela: Jan-18-2023