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发表于 2011-3-30 04:48:22
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作点贡献：email from PTI:* ?1 o% d/ V8 T: E# X) j
! A- j- V5 v" _' WThe model CBEST uses the auxiliary signal PAUX to modulate the power
; B. _8 o3 s" J& QPINIT set up at the initialization of the model. Note that the model6 {; j# p% `9 a% w
does not have any dynamic blocks only limits on its P and MVA output.
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The modulation of PINIT by PAUX is used to introduce damping into the
) x" M; b# j& hsystem for electromechanical oscillatory modes (0.1 Hz to about 3.0 Hz).
# \# F, G1 H; z& M0 wThe signal PAUX is fed to model through the VAR(L), this VAR is the$ o9 I+ P/ A' y8 }/ m: {- h1 E
output of an auxiliary-signal model (look up Chapter 12 of the PSSE0 K# w1 \1 _. R* @' N
Model Library section of the Program Operation Section) that uses local
9 O) u" _6 e$ i: R* Y% tfrequency deviation as input - PAUX1T and CPAAUT.6 j0 U8 w: _' h% B
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Thus, the output of any these two auxiliary-signal models is similar to2 E4 g- f+ i3 n r( _. c( k! W1 }
the output of a Power System Stabilizer using frequency deviation as0 z2 U/ g" _$ I, _# ^
input. So, unless you want to inject a damping power signal into the: ~+ @( ]7 d3 j
system you do not need to use the signal PAUX.% @# U b/ Y& N' }* y4 _
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2 E! j7 J! x3 d8 G5 T9 G, V hRegards, |
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