' p" f$ P8 K( t8 apowerttech 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。 ^0 q* v, W% \/ D4 V: HMain Features . ^* v0 s+ \9 F% X) t( wModeling * i. U. P& Z6 aSSAT accepts powerflow data in the native formats of DSAToolsTM (PSF and PFB), as well as other( Z% c* G3 N* }- N5 T8 m
commonly used format such as PTI PSS/E format, GE PSLF format, and BPA format. 1 T0 n8 V8 b6 @% U5 i8 l8 l5 _Dynamic models of devices commonly represented for stability studies are available in SSAT. Data of 1 n" m1 |% L7 O) l( p- O/ zmodels can be in DSAToolsTM, PTI PSS/E, GE PSLF, BPA format. 5 G1 q. v. z) wThe actual dynamic models used in an SSAT analysis can be customized from the data set provided in all7 Z. v% g5 P* ?7 I- O' _ b% p
data files, by using the dynamic representation specifications. ( C w7 s7 d" k+ J) ^ . \1 x7 P2 W- |( L. pComputation options# m0 N" ]/ s0 w7 O
There are 11 computation options available in SSAT. These include: 7 O" D. t9 f' f- q% u(1) Complete eigenvalue analysis 2 v/ \5 ~: y l* ?8 M(2) Single-Machine-Infinite-Bus (SMIB) analysis/ j: K! N& x9 X* Y
(3) Single-Machine-Infinite-Bus (SMIB) scan for the entire system; E3 T/ u; c. M# I/ ?) Y9 Y2 L
(4) Eigenvalue analysis within specified frequency and damping ranges % l# a4 v8 C. w; r% \- c( C(5) Computation of modes closest to a specified frequency and damping+ I! s) w+ K$ l
(6) Computation of modes related to a generator! ?) y2 [& v+ y! h
(7) Small-signal stability index for contingency ranking5 \- ]" q9 \! b, G0 E
(8) Time and frequency response calculations , N6 T1 @9 x- T3 i(9) Sensitivity analysis6 O' m& h0 M9 m) Q% w
(10) Small-signal stability limit search 1 y& I4 o K& Y& B4 |(11) Mode trace