, ( ).
. : 3 p (p =1, 2, 3,.) , ∆ α =360o/3 p. : ∆ t = T /3 ∆ ωt = 360o/3=120o ( ). max ω.
. 103 (p = 1) 120o .
, (A, B, C) (X, Y, Z) :
iA = Im×sin(wt+ 0 ),
iB = Im×sin(wt- 1200 ),
iC = Im×sin(wt+ 1200 ).
, , (B = k × i), (t):
BA = Bm×sin(wt+ 0 ),
BB = Bm×sin(wt- 1200 ),
BC = Bm×sin(wt+ 1200 ).
( B A, B B, B C) (. 103).
B B A, B B, B C . B ωt = 00; 300; 600. (. 104, , ). :
wt | BA | BB | BC | B | a |
- /2× Bm | /2× Bm | 3/2× Bm | |||
1/2× Bm | -Bm | 1/2× Bm | 3/2× Bm | 300 | |
/2× Bm | - /2× Bm | 3/2× Bm | 600 |
, (max =3/2× Bm) ω, ω. :
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p : p =1 ( ), p =2 ( 2 ) .. (. 105). p = 1, 2, 3, .
f, - p. . f =50 :
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