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发表于 2011-3-30 04:48:22
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作点贡献：email from PTI:9 `& s+ O) q# [8 w! t- c+ l/ G
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The model CBEST uses the auxiliary signal PAUX to modulate the power
3 b4 [9 d$ Y, BPINIT set up at the initialization of the model. Note that the model
/ p" P: H* ?7 B- y& v, Ddoes not have any dynamic blocks only limits on its P and MVA output.+ J9 _# ]; w* Y+ ?6 ?# D$ x6 p
" v, d1 x# R7 r. z, wThe modulation of PINIT by PAUX is used to introduce damping into the
; K) L8 J0 V- Z# ^system for electromechanical oscillatory modes (0.1 Hz to about 3.0 Hz).
0 f1 M* ]' o% EThe signal PAUX is fed to model through the VAR(L), this VAR is the* h. M+ L$ u3 h* h4 S5 B
output of an auxiliary-signal model (look up Chapter 12 of the PSSE, L, o1 d/ F8 ~9 ^1 y3 S
Model Library section of the Program Operation Section) that uses local2 x9 W( z, x F4 q
frequency deviation as input - PAUX1T and CPAAUT.
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+ m2 w$ ?& S$ TThus, the output of any these two auxiliary-signal models is similar to3 ^% W5 Y# ~8 G* v; X7 n$ J2 s* ^0 \
the output of a Power System Stabilizer using frequency deviation as T2 ~" U( H: \4 k
input. So, unless you want to inject a damping power signal into the# x1 P( i1 g0 z! i' D& m" U
system you do not need to use the signal PAUX.) Q) F/ K3 R+ k0 d5 K6 l: }4 S9 D
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( _' ]! {- I. O# N' [! HRegards, |
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