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发表于 2011-3-30 04:48:22
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作点贡献:email from PTI:* `; k7 N' z5 H: D
# b2 P( {( y3 O8 K. Q r7 _ E" O8 RThe model CBEST uses the auxiliary signal PAUX to modulate the power
* m) g$ L0 @2 Q9 j, RPINIT set up at the initialization of the model. Note that the model- i u! _4 c) H* A; r7 d2 W/ ?/ c6 M
does not have any dynamic blocks only limits on its P and MVA output.( ?1 \" Q& Z6 H
, J6 y2 h% U* YThe modulation of PINIT by PAUX is used to introduce damping into the- c' Y2 Z) A. \6 z6 ~
system for electromechanical oscillatory modes (0.1 Hz to about 3.0 Hz).
+ Y* |# b% z- hThe signal PAUX is fed to model through the VAR(L), this VAR is the3 T2 J( m% p/ {! v: z" C
output of an auxiliary-signal model (look up Chapter 12 of the PSSE
) ~% Z: u/ x* M1 ]3 xModel Library section of the Program Operation Section) that uses local
4 M X. D# p7 u9 r# {frequency deviation as input - PAUX1T and CPAAUT.. x" A, T* G' b7 n& k) v0 \7 O
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Thus, the output of any these two auxiliary-signal models is similar to
P R& F. H2 [) J5 @; x9 fthe output of a Power System Stabilizer using frequency deviation as( e& H$ \0 b) O; e
input. So, unless you want to inject a damping power signal into the
4 b; g& r3 S& a0 w$ Xsystem you do not need to use the signal PAUX.
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. |! o2 |7 z8 C$ M) SRegards, |
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