: c& @, i: K) w2 f) Z1 G0 bpowerttech 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。 \% c9 y. Z- x# g6 m5 X8 [
Main Features# \% E9 _' U6 ^- h* U' X
Modeling " w+ h+ V q0 ASSAT accepts powerflow data in the native formats of DSAToolsTM (PSF and PFB), as well as other 4 Q3 t& M; R% O7 x" U q* x0 tcommonly used format such as PTI PSS/E format, GE PSLF format, and BPA format. K9 I4 Y1 m' S/ s7 n$ }# k- }
Dynamic models of devices commonly represented for stability studies are available in SSAT. Data of" h6 h: D& s1 Y- d9 ?7 H p
models can be in DSAToolsTM, PTI PSS/E, GE PSLF, BPA format.7 i! ?7 j% e2 \; w# \3 u* s
The actual dynamic models used in an SSAT analysis can be customized from the data set provided in all 7 k, _5 i( T* k, C" d& R! Zdata files, by using the dynamic representation specifications. & I- @. S4 c! U& N C$ [6 [* q5 \
Computation options / B* X- f# E8 I: AThere are 11 computation options available in SSAT. These include: 0 }/ E- E6 \' s, X* d$ c(1) Complete eigenvalue analysis6 e# C& g; z$ a$ W- e
(2) Single-Machine-Infinite-Bus (SMIB) analysis9 q9 |/ s2 | R) W7 }: Y
(3) Single-Machine-Infinite-Bus (SMIB) scan for the entire system 1 y' F Z8 V4 H1 @& }3 C( f6 b(4) Eigenvalue analysis within specified frequency and damping ranges & P% R2 {# r8 @8 d+ L(5) Computation of modes closest to a specified frequency and damping7 J2 `4 n! S0 C6 p2 h, j4 D' E
(6) Computation of modes related to a generator # p$ f0 O c# A2 U8 g(7) Small-signal stability index for contingency ranking * y. ?) ^& D# m( n8 O(8) Time and frequency response calculations& a4 d# c! I1 F/ R' a5 d
(9) Sensitivity analysis % j, y9 j- n3 t `: x(10) Small-signal stability limit search4 T- H8 _8 ^. e. l! }7 P' w
(11) Mode trace
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