PSCAD高手必看的啊？who kown？

xuyufufzu

i mean how to apply the practice parameter to the PSCAD simulation environment.

yizhangsjtu

It is hard to teach you those details here. I will notify you when the HVDC centre offers any course in China. You may go there to get the training. I expect there will a course later this year.
  P# N2 t0 U6 Z& OBuy the way some of the universities in China have pretty good knowledge in PSCAD.Let me know where you are now, I will try to refer you some place to learn.
! I" z" g5 m) c" S2 S+ r' l7 WIn the mean time reading the PSCAD manual will be a help.

yizhangsjtu

It is hard to teach you those details here. I will notify you when the HVDC centre offers any course in China. You may go there to get the training. I expect there will a course later this year.
Buy the way some of the universities in China have pretty good knowledge in PSCAD.Let me know where you are now, I will try to refer you some place to learn.
# I$ u3 {/ Z8 N& L! I% a* P% p, ~1 m5 F% VIn the mean time reading the PSCAD manual will be a help.

xuyufufzu

i am in Fzu University now. i should study hard to know the theory of the pscad.
5 D1 X2 C2 n2 s/ S; B2 \6 T- rthanks .

xuyufufzu

大家都知道，传输线中的波阻抗的数学模型，上次版主说，PSCAD 与EMTP的传输线的理论都是相同的。
我去看了下EMTP 中的rulebook中的理论，发现里面关于波阻抗的那些内容，估计错了，

suxunwen1

讨论的帖子

xuyufufzu

PSCAD和EMTP 的传输线的理论基础

yizhangsjtu

I wonder where is the table 3 coming from. Obviously there are mistakes in the table.

  V7 O, Z" c0 j6 z& zThe surge impedance is right:
Zs=sqrt(L/C)

The velocity is wrong, it should be:
" ~" G) E& S, d0 h0 I/ B* ~v=1.0/sqrt(L*C)
/ _4 O8 m: V: J5 _1 has such the travel time would be:
t=Length/v=Length/sqrt(L*C)

1 z9 o' p, D: P8 R; [3 T' dBoth EMTP and PSCAD/EMTDC, or anyone who does electromegnectic transients simulation, must follow those basic concept, or else they won't work.

xuyufufzu

弄出来，让大家更加熟悉传输线的理论

xuyufufzu

在里面，我看不懂几个内部函数的意思，能指导一下么？
4 r3 m. S% o8 x" S. v$ {#IF Tap
6 ?2 h5 {2 |( U# G0 O3 B# a4 r #STORAGE STOR:26
#IF SAT==TAP
. T! V2 S& y# t' J" p. i  #LOCAL REAL RVD1_1
      RVD1_1 = $TapI
      IF (RVD1_1 .LT. 1.0E-8) RVD1_1 = 1.0
* V; F1 _% i0 ?. h) c7 o& m( N #ENDIF
#ELSE
: n& k, h: p* b" U #STORAGE STOR:21
, u) e9 B. l0 A3 K. X( U! V#ENDIF
!  TRANSFORMER SATURATION SUBROUTINE
#SUBROUTINE TSAT21 Transformer Saturation Subroutine
#LOCAL REAL X_KNEE
: P/ R- ~" Y, s# L#IF Txk>0
      IF (TIME.GT.$Txk) THEN
; f2 w, Q& y4 c9 N3 F. i         X_KNEE = $Xknee
: G  {9 h  {3 ^2 h, d      ELSE
         X_KNEE = -$Xknee
1 [* d6 S5 F9 C& a* F+ K      ENDIF
6 t1 M* Q4 g2 f5 ]" s2 T8 a7 \#ELSE
4 A/ V' n: ?' W" B+ X" S% s      X_KNEE = $Xknee
; ?* y1 @* R$ |0 e#ENDIF
2 R% z% K: D$ p/ m5 L: S0 k! o#LOCAL REAL TURNS_V
#IF SAT==1
      TURNS_V = $V1
#ELSE
      TURNS_V = $V2
! ]# }* @3 w/ Y* Y5 X  w3 U4 L#ENDIF
#IF SAT==TAP
     + * RVD1_1
, a( S( K! W+ I2 n+ Q( g. k# V% i#ENDIF
#IF SAT==1
#IF CuL>0.0
      CALL TSAT21($X1,$B1,
#ELSE
! L& P" x4 O" ]8 d5 A: B5 P      CALL TSAT21($A1,$B1,
4 m2 g1 i+ E) W! |0 S, y #ENDIF
2 u' K6 D; `1 f6 `#ELSE
#IF CuL>0.0
$ {+ u% q7 I: i( h$ o      CALL TSAT21($X2,$B2,
#ELSE
  ?6 M! U9 S3 x' N      CALL TSAT21($A2,$B2,
) p1 s! u3 j# a; L7 o- h- V# e2 G #ENDIF
# B5 S6 t: t! z7 |, ?0 C! B7 B#ENDIF
5 M* R; r* Q& Z% @     + 0,0, 0,0, $SS,$Tmva,TURNS_V,$Xair,X_KNEE,$f,$Tdc,$I_m1, 0.0, $Enab)
#OUTPUT REAL IMAG {-STOR(NEXC-21+17)}
#OUTPUT REAL FLUX {STOR(NEXC-21+11)}
3 h6 _: b; T) o5 \3 Z9 ]#IF Tap
6 p9 s* q! C. h. H      CALL TRTAP5($#[1], $Tap, $SS, $TapI)
#ENDIF
!