U2(p) = M(p)/N(p), n : p1, 2,n, p1 m1 pa, p2 m2 , n - mn . :
.
-
p0 = 0; p1,2 =s jw = (1.818 j9.833)104.
, U77(t)
(13)
M(0) = 1, Q(0) = 1,
.
, = 3.37× 10-5, B = 0.185.
, << , (13) Acos(wt) Bsin(wt).
, , , :
(14)
, , . .
(14) :
U77(t)=U1(t) + U2(t),
U1(t) =1×1(t), B ;
U2(t)=B×exp(st) sin(wt)×1(t), B .
0 ÷ T1 s
T1 = (4 ÷ 5)/s
t = T1 , exp(sT1) = exp((4 ÷ 5)) ~ 0
T2 T
T = 2× /w =6.39×10-5 c = 63.9 .
8 T, T2
0 250 2 = 8 31 .
4 U77(t), .
4
, . | U77(t), | , . | U77 (t), |
0.1 | 0.948 | ||
0.773 | 1.001 | ||
0.723 | 1.040 | ||
0.832 | 1.048 | ||
1.001 | 1.029 | ||
1.127 | 0.999 | ||
1.154 | 0.977 | ||
1.094 | 0.973 | ||
0.999 | 0.984 | ||
0.928 | 1.001 | ||
0.914 | 1.020 |
. 7 .
7.1 .
- U(jω), , . () f0 KU(p): f0 = =½p0 ½/2π= 15915.5 .
, , f = 0 U(0) = 1. , R1 R2 1, 100% . |(Z(0)| . 100% 1. (.. ) R4, R5 2 , .. |ZC3| .
|
|
f, , . 1, 2, C3 .
() S 0.3max. S = 2 .
= S(0.3Kmax)/S(0.7×Kmax) . = 1, = 0.363.
, f0 180 ( 90 +90 ). , f < f0 90 , f > f0 .
7.2 .
. . , 1 2 ( , t = 0 1 C2 ).
t >> 0 R1 R2.
, , w U2().