ie415 s28-s29 (trazas de nyquist)
TRANSCRIPT
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. ,
D I E
F I
N A H
.@..
IE415 E
( )
)()(1
)()(
s H sG
sGsT
+=
)(
)()(
s D
s N sG
G
G=
)(
)()(
s D
s N s H
H
H =
• A
.
B()
E()
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)()()()()()(
)()(1)()(
s N s N s Ds Ds Ds N
s H sGsGsT
H G H G
H G
+=
+=
)()(
)()()()(
s Ds N
s Ds N s H sG
H
H
G
G=
H G
H G H G
H G
H G
D D
N N D D
D D
N N s H sG
+=+=+ 1)()(1
()() 1+()() .
• :
• F ():
• F ():
1+()() ().
• P ,
1+GH.
?
• P , 50,
.
• S ,
,
.
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•
1+.
• S MALAB GH
1+GH .
• L (1+GH)
(GH).
• E 1 GH
FLA .
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• G ()
1+ ():
A , .
S , .
S , .
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P C B
))((
))(()(
21
21
ps ps
zs zssF
−−
−−=
• S , ,
, .
P
C A
• L
.
• E
.
→
:
O2
1+
45°
:
1 +
1
45°
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L
:
1. E .
2. D ( ).
3. P :
.
4. P :
.
P P
• E
.
• A
M (I./ND.)
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O
• D ,
,
?
• , ,
.
C , 360°.
C , 0°.
S DMR,
DMR , DCMR .
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?
E 1+, , FLC .
A .
P .
( )
.
))((
))(()(
21
21
ps ps
zs zssF
−−
−−=
L ( ,
) F().
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)()(1)( s H sGsF +=•
:
:
N = # DMR
P = # = # FLA
= #
= # FLC
N = P
= PN
S .
E FLA ( ).
∞
−∞
P
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()
M G()H().
E FLA .
)()( s H sG• :
= PN
= # FLC .P = # FLA .
N = #
1.
C 1+GHP FLC
P 1+GH
P GH
R
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1. D N ().
2. C 1 (DMR/DCMR) .
3. D .
• :
S N 1+, FLA (GH), , .
L B FLC, N .
= PN
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S (K) FLA, N K.
2
1)(
−=s
sG
L FLA 2
L FLC 1
P , .
S FLA , K, .
)1(
1
)(1
)(
−=
+ sS G
sG
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A FLA ( ):
L FLC :
P K :
2)(
−=s
K sG
)2()(1
)(
−+=
+ K s
K
sG
sG
2≥K
A N.
S :
GH:
0.05
0.15
:
2
1
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P .
E , .
∞
−∞
P
A N.
P, N :
∞
−∞
P 1. L .
E ∞ ∞.
I , , .
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∞
−∞
P 2. E ∞ ∞ , ∞.
E , , .
E ( ).
A () ( 1).
:
1. S = .
2. H 0 ∞ DMR( ; 0 ∞ )
3. D .
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. 2 (ωωωω 0 ∞∞∞∞):
P 4 .
1. ω=0 ( )
2. ω=∞ ( )
3. P
4. P .
:
G :
:
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A .
: N : K
:
:
?
:
:
• M
K .
• O , :
1. ω=0 ( )
2. ω=∞ ( )
3. P
4. P .
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: :
E FLA ( K=1)
E =ω .
E ω ().
00 =→= sω
:
2222
3222
2
2
2
2
2
2
2
2
2
2
6)8(
)14154(48)8)(15(
6)8(
6)8(
6)8(
8)15(
6)8(
8)15(
86
158)()(
86
158
)4)(2(
)5)(3()()(
ω ω
ω ω ω ω ω
ω ω
ω ω
ω ω
ω ω
ω ω
ω ω
ω ω
ω ω ω ω
+−
−+−−−=
+−
+−×
−−
+−=
−−
+−=
+−−
++−=
+−
++=
−−
++=
j
j
j
j
j
j
j
j
j j H jG
ss
ss
ss
sss H sG
• A = 0,
31.1412
540
)11(6)118(
)11(48)118)(1115(22
−=−
=+−
−−−
• S
:
• :
11=ω
33.1)( −=sG
→
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=0,
=0
:
2:
C P = 2, N 2 .
E 1.
P , 1.33K 1:
K < 1/1.33
K < 0.75
:
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• .
)2)(22()(
2+++
=sss
K sG
:
22222
22
2
)6()1(16
)6()1(4
)2)(22)(()(
ω ω ω
ω ω ω
ω ω ω
ω
−+−
−−−=
+++=
j
j j j
K jG
P 6,0=ω = 0
S
G() = 0.05
• 1: S .
E 0.
ω js =
6=ω
:
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2: A
P = 0; N .
E 1.
P , 0.05K 1.
:
K<
1/0.05
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C
D
N
P GH
D
D
∗
Φ α
1 K. O, I C M,
3 E., P H, 1998.
2 B. K, S C A,
7 E., P H, 1996.
3 . B, I C, 2. E.,A O, 2006.