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发表于 2011-3-30 04:48:22
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作点贡献:email from PTI:. Z& m% @1 a0 D6 _
; x2 G( p9 E5 v3 T3 n' ], EThe model CBEST uses the auxiliary signal PAUX to modulate the power
8 I. l# a) k; @! m# I' x9 YPINIT set up at the initialization of the model. Note that the model
( B! M7 L& [ ?! y- _* C) H7 Udoes not have any dynamic blocks only limits on its P and MVA output.% b7 M' T. M6 }, E' p
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The modulation of PINIT by PAUX is used to introduce damping into the; l1 y% A7 n, [: l {* U
system for electromechanical oscillatory modes (0.1 Hz to about 3.0 Hz).
5 b- m- h1 M/ }8 tThe signal PAUX is fed to model through the VAR(L), this VAR is the$ Y' Z, a% ~/ G, C( j
output of an auxiliary-signal model (look up Chapter 12 of the PSSE
9 W f& K" Q4 y0 ~- n6 I z- k' hModel Library section of the Program Operation Section) that uses local, U) m$ J! Q: O5 j. w' w
frequency deviation as input - PAUX1T and CPAAUT.$ K, p2 H; X% T$ F$ [. D
5 a% m- u; s7 H: }8 ~9 DThus, the output of any these two auxiliary-signal models is similar to
2 q# U1 k. U( N; ~/ `the output of a Power System Stabilizer using frequency deviation as
& n" H9 b" S7 q1 b# V% T. kinput. So, unless you want to inject a damping power signal into the4 l3 G5 M5 [$ r d4 x
system you do not need to use the signal PAUX.
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' k" w" v2 k' @- |4 RRegards, |
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