. .
, .., , , , . ., , , . . , . , , .. -
., / .
. . . . , , , .
.- .
, , , . 1 ), 0 > R > .
R L, .. u = uR+uL = Ri + Ldi/dt
|
U = UR + UL = RI + jw LI = RI + jXLI. |
(1) |
(1) ,
, ,
U (. 1 )). (1) R UR UL U . , , , . UR UL 90 , 180 , .. , U. , UR , UL U , UR R., - ,
.UR UL I , UR . I, (1), UR , UL U R jXL. , I. R , .. jXL. U/XL j - 90 (. 1 )). I. , R = 0 90 U/XL. R .
.
, - .
I U=const - > B > + , G . 0 < w < .
,
I=GU, I=jBU, .. , , , .. U, I 90 - j. I = I+ I, , U G, (. 2 )) . - < | I| < + I ^ I , , U . I I U I., .
. 3.
, .. , , , . .
I5 , . 3. I5 C2, b c . Ubc=UC2. 90 , , Ubc I5 , .. .
b c C2 , r L. - φ, w L r. I4 r-L . 3 90 , Ubc , . I4 . r I4, L - I4 90, Ur UL Ubc. Ur UL, , Ubc I4. , I4 , Ur, - UL.
b I3 = I4 + I5, I4 I5 I3, R . 3. UR = Uab, , , , I3.
Uac Uac = Uab+ Ubc = U. , U Uab Ubc . 3. Uac= U1. , C1 Uac 90° , Uac .
a I1 = I2 + I3. I1 I2 I3.
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