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发表于 2011-3-30 04:48:22
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作点贡献:email from PTI:
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) u$ n4 B, F+ o( FThe model CBEST uses the auxiliary signal PAUX to modulate the power# \! ~1 O9 G' m2 x, U. y4 X
PINIT set up at the initialization of the model. Note that the model
Z7 O) b z* z: o+ odoes 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
* q" j) e4 c9 z7 m. t7 q. j3 _system for electromechanical oscillatory modes (0.1 Hz to about 3.0 Hz).
" q" |3 d$ W4 i. s1 L, {$ V" cThe signal PAUX is fed to model through the VAR(L), this VAR is the
. E5 H1 s0 I2 [" w& W5 J9 g5 d% noutput of an auxiliary-signal model (look up Chapter 12 of the PSSE
1 }7 _- K6 _' S+ H& zModel Library section of the Program Operation Section) that uses local
9 j- s5 X$ L: g+ s; \; `0 Nfrequency deviation as input - PAUX1T and CPAAUT.
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) G' s: j9 `3 c0 ~7 dThus, the output of any these two auxiliary-signal models is similar to
) j1 X& l* z6 N! z6 k4 Xthe output of a Power System Stabilizer using frequency deviation as
h& b! {2 X$ a0 }9 l5 Xinput. So, unless you want to inject a damping power signal into the
# S) w5 Q9 @* g- M: bsystem you do not need to use the signal PAUX.
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& ]/ I) ]+ b& D% V; y1 C" V' |Regards, |
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