本帖最后由 Tms320 于 2009-12-27 17:46 编辑 " V9 E0 [. M. T: P1 c. I5 U
7 J1 d! [3 q9 }" g* \powerttech 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。 * x# }3 Y7 _ Z! r k6 ~. E$ fMain Features/ n T4 [$ Z) P+ u
Modeling" L! |$ C0 r5 T* I: @- l
SSAT accepts powerflow data in the native formats of DSAToolsTM (PSF and PFB), as well as other) }# N, U9 H! Q E0 ?& o/ K
commonly used format such as PTI PSS/E format, GE PSLF format, and BPA format. . V. D+ h9 Z& X$ q/ T) a! [Dynamic models of devices commonly represented for stability studies are available in SSAT. Data of0 P4 Y7 u- z9 C8 P
models can be in DSAToolsTM, PTI PSS/E, GE PSLF, BPA format.7 i4 b# e: i, ]" Z1 w, G: [! |8 a
The actual dynamic models used in an SSAT analysis can be customized from the data set provided in all ) `% y! c) t4 A! s4 j5 U7 pdata files, by using the dynamic representation specifications. 4 o/ h: f; |8 U ! R; M7 I% a) r: n$ h- c& gComputation options ! s! ]0 b- _% N k2 k$ d( }: J/ e% q# yThere are 11 computation options available in SSAT. These include:6 e2 m% y5 P! J2 n/ l' S( A
(1) Complete eigenvalue analysis 7 D) t& Z% B1 u5 V6 Y8 K3 s(2) Single-Machine-Infinite-Bus (SMIB) analysis+ F" B* g' c7 R& e8 U* i; W
(3) Single-Machine-Infinite-Bus (SMIB) scan for the entire system+ Q1 R! f/ M( N9 H% O/ i( r: B
(4) Eigenvalue analysis within specified frequency and damping ranges8 j3 v/ c: b- L% |2 C. }0 i& E+ C6 b
(5) Computation of modes closest to a specified frequency and damping9 L; k4 t; G. w9 W3 C9 R5 t
(6) Computation of modes related to a generator : |8 L5 d$ Y _ p- z; j( J(7) Small-signal stability index for contingency ranking5 f4 z( c, N( }/ U
(8) Time and frequency response calculations 2 p) D- Z$ u) }+ Z2 A(9) Sensitivity analysis 8 g; o/ s! h" O# O; }; d(10) Small-signal stability limit search# ?2 G( e, c# D6 C
(11) Mode trace