Ibhulorho yokubuyisela i-thyristor yesigaba esithathu iyafuneka ukulawula imoto ye-DC.Isixhobo esifanelekileyo sibalulekile ukuqinisekisa ukusebenza okuzinzileyo kwesiqalisi esithambileyo ukulawula imotor kwaye kufuneka ikhethwe ukuba ihambelane nepropathi yemoto kunye nemfuno yenkqubo.Umgaqo wokhetho unikwe ngolu hlobo lulandelayo:

1.Imeko: igalelo lombane V_umgca=380V (3N 50Hz), imveliso DC yangoku I_d=3600A, imo yokupholisa ye-thyristor kukupholisa umoya, ubushushu bokusingqongileyo T_A=40℃, utyando olufunwayo lwangoku I_I-TSM=20KA.

I-2.Ukukhethwa kwe-voltage: ixabiso eliphezulu le-voltage ye-line rated

V_D(max)=*V_I= * 380 = 537V, i-coefficient anti-impact ithathwa njenge-2.5, ifomula yokubala ibakala lombane yile: V._DSM≥537V * 2.5= 1343V, ngoko

V_DSM= V_I-RSM= 1400V.

3.Ukukhethwa kwangoku: ngenxa yenkcazo ye-thyristor iyahluka ngaphezu kwangoku eyahlukileyo, ngoko kufuneka sibale ixabiso langoku elifanelekileyo kwi-thyristor nge-Vrrm=1400V.I_d=3600A, umndilili odlulayo ngoku kwi-thyristor I nganye_T= 1200A, umjelo okalisiweyo we thyristor I_T(AV)=1200A*2.5=3000A.

4.I-heatsink yokupholisa umoya enje iya kukhethwa ngokwenkcazo ye-thyristor.

5.I-thyristor kunye ne-heatsink kufuneka zikhethwe ngokuchasene nesicelo kunye nemfuno ecacileyo yenkqubo yokulawula imoto.Isigaba sokulawula i-thyristor kunye ne-heatsink eyenziwa yi-Jiangsu Yangjie Runau Semiconductor Co idibaniswe kakhulu kunye ne-teknoloji yobugcisa bokuvelisa isixhobo esiphezulu se-semiconductor yamandla.Isetyenziswa ngokubanzi kwisicelo solawulo lokuhanjiswa kweemoto.Nceda uqhagamshelane neengcali zethu zobuchwephesha ukukhetha ezifanelekileyothyristorkwayeisinki yobushushuukusebenza kakuhle kwesicelo sakho.