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发表于 2011-3-30 04:48:22
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作点贡献:email from PTI:4 D8 \; s E5 o
6 C+ U- P' R5 I* m5 iThe model CBEST uses the auxiliary signal PAUX to modulate the power, m) h" `; L* q% v( N4 V
PINIT set up at the initialization of the model. Note that the model C0 }$ t9 l6 Q7 n4 w9 j. S
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. D2 B2 I, X) R' K! O* Z
system for electromechanical oscillatory modes (0.1 Hz to about 3.0 Hz).) q. j& ?8 _$ Z9 d
The signal PAUX is fed to model through the VAR(L), this VAR is the
$ C+ b; H0 ~$ A" i; Ioutput of an auxiliary-signal model (look up Chapter 12 of the PSSE, l0 N. [4 r4 j; _; x
Model Library section of the Program Operation Section) that uses local) \; @& C+ W3 ^0 [* ?/ a9 ^4 W0 i% ?2 C
frequency deviation as input - PAUX1T and CPAAUT.
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Thus, the output of any these two auxiliary-signal models is similar to5 r4 W7 V3 i; l& y a
the output of a Power System Stabilizer using frequency deviation as
; O* r7 r! b& v5 H+ s Zinput. So, unless you want to inject a damping power signal into the( ?3 W6 m, F1 q5 E+ d
system you do not need to use the signal PAUX.; }) e9 ` E, w) M1 K9 S
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Regards, |
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