本帖最后由 Tms320 于 2009-12-27 17:46 编辑 3 n: z% P( Q( L* {; b # P. N! M+ r* V9 {0 _2 t+ Npowerttech 的DSA是用于系统稳定性分析的强大工具,SSAT是其中用于系统小干扰建模的模块。 1 U# N4 [5 e8 A( m: ]6 @Main Features ' w, n4 e7 v: R |Modeling ! F" Z7 `/ l* r1 H1 p/ ISSAT accepts powerflow data in the native formats of DSAToolsTM (PSF and PFB), as well as other/ ^9 v/ f7 @ c7 f2 M# k
commonly used format such as PTI PSS/E format, GE PSLF format, and BPA format.$ G. ]0 J5 _& X y4 {) e
Dynamic models of devices commonly represented for stability studies are available in SSAT. Data of/ E" X; ^. G, F
models can be in DSAToolsTM, PTI PSS/E, GE PSLF, BPA format. 3 c9 r% Z& [/ R9 n3 uThe actual dynamic models used in an SSAT analysis can be customized from the data set provided in all6 B; u: f( w1 \4 ]5 \1 v
data files, by using the dynamic representation specifications. & f# ]1 Q4 c! W2 n' @
& J. |2 B2 U$ WComputation options 7 [& B0 ]& t; P* TThere are 11 computation options available in SSAT. These include:/ m. C; h% B H
(1) Complete eigenvalue analysis+ r% E) R3 |$ Y3 X3 Q w, }
(2) Single-Machine-Infinite-Bus (SMIB) analysis 5 J0 j3 h& a& R(3) Single-Machine-Infinite-Bus (SMIB) scan for the entire system " T/ M8 B, `6 W5 @; N(4) Eigenvalue analysis within specified frequency and damping ranges ' W5 \( q5 u0 o. v' V( b(5) Computation of modes closest to a specified frequency and damping- @8 C' e5 |+ z! r# m
(6) Computation of modes related to a generator . _5 w) l5 L1 J, t0 Q(7) Small-signal stability index for contingency ranking 9 ~, Q; a* z: R, _0 x(8) Time and frequency response calculations / o, Z2 o( Y/ U; r& A- s; B(9) Sensitivity analysis ) n7 ]8 ~: w+ T7 H(10) Small-signal stability limit search- P* m# l \5 I7 \8 |/ f
(11) Mode trace