KichTuDocLap (36).pdf

# KichTuDocLap (36).pdf - Đồ án điện tử công suất...

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Đồ án đ i n t công su t 35 dt ba 3 3 R = .X = .0,92 = 0,88 ( ) π π -Sôt ¸p trªn MBA 2 2 2 2 ba Δ U = Δ U + Δ U = 16,2 +8,8 = 18,43 (V) x r -§iÖn ¸p trªn ®iÖn c¬ khi cã gãc më nhá 0 min 10 α = U = U d0 .cos α min –2. v ba - Δ U Δ U = 649,46cos10 0 – 2.1,8 – 18,43 = 617,56 (V) -Tæng trë ng¾t m¹ch quy ®æi vÒ thø cÊp 2 2 2 2 ba ba ba Z = R +X = 1,62 + 0,92 = 1,86 ( ) -Tæn hao ng¾n m¹ch trong MBA 2 2 n 2 ba Δ P = 3.R .I = 3.1,62.8,165 = 324 (W) n n Δ P 324 Δ P % = .100 = .100 = 4,75% S 6819,33 -§iÖn ¸p ng¾n m¹ch t¸c dông 2 ba nr 2 R I 1,62.8,165 . U = .100 = .100 = 4,77% U 277,5 -§iÖn ¸p ng¾n m¹ch ph¶n kh¸ng 2 ba nx 2 X I 0,92.8,165 U = .100 = .100 = 2,7% U 277,5 -§iÖn ¸p ng¾n m¹ch phÇn tr¨m Unr Unx 2 2 2 2 n U = U +U = 4,75 +2,7 = 5,46 (V) -Dßng ®iÖn ng¾n m¹ch x¸c lËp
• Spring '16
• Stephanie Moore

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