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发表于 2011-3-30 04:48:22
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作点贡献：email from PTI:/ w. N: ?8 Y1 x e. D* [0 T
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The model CBEST uses the auxiliary signal PAUX to modulate the power1 S. \5 r1 e3 B: `8 d4 q+ E
PINIT set up at the initialization of the model. Note that the model
* _. S3 L; p$ odoes not have any dynamic blocks only limits on its P and MVA output.7 B& c& J3 a- K/ H |4 O" ^
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The modulation of PINIT by PAUX is used to introduce damping into the
2 |3 M9 [9 P/ Isystem for electromechanical oscillatory modes (0.1 Hz to about 3.0 Hz)., F$ k4 X: o; U7 J
The signal PAUX is fed to model through the VAR(L), this VAR is the h3 U- \# Y& S( ?4 i, F9 o- u
output of an auxiliary-signal model (look up Chapter 12 of the PSSE
2 E1 r" s/ u3 {7 X* z. HModel Library section of the Program Operation Section) that uses local Y% g9 v7 a) U; }: m# m$ K
frequency deviation as input - PAUX1T and CPAAUT.: M N: y7 G4 [7 _, g$ ~
8 k$ Y& `0 S! j4 L# P' KThus, the output of any these two auxiliary-signal models is similar to* r4 H( b: U O# \* v
the output of a Power System Stabilizer using frequency deviation as8 l) C9 e1 {, w
input. So, unless you want to inject a damping power signal into the4 s$ `1 J9 N- `) V- j
system you do not need to use the signal PAUX.# \" z _0 d) L' w3 |; b7 [% f
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( R5 j7 W0 A- ? @. v$ C7 ARegards, |
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