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用MODELS计算线路感应电压:程序如下:
0 P ]& w; a2 pMODEL indloss
$ ?1 q' {% `$ R* F1 A& MCONST
3 |$ p) Q0 T' ?* Z* P9 F3 ATmax {VAL:500} % Y! P! {" T l/ b8 |( _
n {VAL:2}
1 w9 L3 u8 @( e" A9 c" cc {VAL:3.e8}
. c& z6 [; q0 f5 A# D6 i0 ~I0 {VAL:1} 6 X. }# P Z! g+ d! I3 T
eps0 {val:8.85e-12}
0 J) ~, l6 i% D2 A, n$ K; l, cINPUT UAP[0...n],UBP[0...n]1 h$ Y( A* O) e
DATA Y,XA,XB8 a1 x' e. y, X* k9 @
z[1...n] {DFLT:10} & R+ v1 x5 G0 N! m/ i8 P) M
Im {DFLT:3e4}
+ m B" u7 g* |2 `0 Etc {DFLT:5e-5} ! d, u* {* @2 O' p4 M
th {DFLT:2e-6}" ]! m* m" w" o+ R+ T) ]
v {DFLT:1.5e8}
, \# {- f9 \+ L' [) Usigma {DFLT:0.001} ! h" [! } _- Z1 O2 X$ G
epsr {DFLT:10}
8 G7 Y# `$ X1 m5 J. p; F8 Z( QOUTPUT UrA[0...n],UrB[0...n]
: ~" d2 Q% ^( n' f6 @VAR UindA0[0...Tmax],UindB0[0...Tmax],g1[0...Tmax],g2[0...Tmax],# w6 C: P7 N* R1 s) t7 K
UindAD[0...Tmax],UindBD[0...Tmax],Ui0,UiD,2 \' r9 m/ J: \. O! D
UrA[0...n],UrB[0...n],Tr,k,i,AB,dt,uk[1..4],
" p4 @8 { H6 O& db,L,x,tau,a1,b1,c1,c2,c3
7 O) @6 Z% q1 FFUNCTION F0(x,tr):= (c*tr-x)/(y*y+(b*(c*tr-x))**2)8 g( ?/ j2 Q; a
FUNCTION F1(x,tr):= (x+b*b*(c*tr-x))/sqrt((v*tr)**2+(1-b*b)*(x*x+y*y))
5 E0 Y2 P1 j1 E9 B/ p9 ]FUNCTION F2(x,tr):= x+b*b*(c*tr-x)+sqrt((v*tr)**2+(1-b*b)*(x*x+y*y))
. P4 R+ h/ ?( p! Y k" X6 EFUNCTION F3(x,tr):= (v*tr+sqrt((v*tr)**2+(1-b*b)*(x*x+y*y)))/sqrt(x*x+y*y)6 Q+ F% ?0 ?& h) f& y
FUNCTION t0(x):= sqrt(x*x+y*y)/c6 g( |8 V, k! U- ^9 N
HISTORY+ ~. q7 o" {+ S) r+ b! y
UrA[1...n] {dflt:0}
+ g7 H! R% V5 L/ M; H% _7 L h& hUrB[1...n] {dflt:0}
5 W: ^# C% C3 ~UAP[1...n] {dflt:0}8 d: j4 {! }0 j7 V- q" X
UBP[1...n] {dflt:0}0 A. t* J+ V. R# i' d. E F# K
DELAY CELLS DFLT: (XA-XB)/(c*timestep)+1
, r9 d% y* r: i6 q0 z% T" d( o& C; EINIT
: f* y! g* h. l& z0 c Z9 ^8 k7 Sk:=sqrt(eps0*epsr/(PI*sigma*dt))
, ^- b$ b) g; X7 e2 b' W: qdt:= timestep b:=v/c L:=XA-XB tau:=L/c
7 V4 D/ Y! G# s1 {: k- Ja1:=Im/(I0*th)
* ~/ [. ^$ u, u1 Y2 o+ Eb1:=0.5*th/(tc-th)+1+ l6 n6 U4 @) F: ^( p: y
c1:=a1*k*dt/sqrt(epsr)
n/ ]6 U& L, C6 p+ ]c2:=-1.073*k+0.2153*(k**3)+4/3
& t, v- X, N3 }- t5 z a% P9 Q: Ic3:=-0.2153*(k**3)+1/60 ^6 G$ p8 C9 {% b- f) H
FOR AB:=1 TO 2 DO9 ?( P5 x2 R1 i1 {8 H
if AB=1 then- I& R F- ~0 D5 U* m1 v' L6 x) h3 ~
x:=XA else x:=-XB
; X: g% u7 l% S" Q" l- \' C6 V/ J3 Fendif4 ^" ~/ K) o& ~2 T5 {! H. u& t
FOR i:=0 TO Tmax DO
( a, ~! Y3 Q: nTr:=i*dt
& S- L, x6 P3 q- t& }if Tr>t0(x)
@1 j/ f7 {+ y2 W2 c& ^then! I) x* ` r6 f: @2 S: m4 N
if Tr>t0(x-L)+tau
) i/ }8 p5 M/ e1 B, K# k+ R) uthen
/ ?: ~3 ?: g1 S% n: EUi0:=f0(x,Tr)*(f1(x,Tr)-f1(x-L,Tr-tau))2 o- V8 d- x+ r' {! u7 Y
UiD:=ln( f2(x,Tr)/f2(x-L,Tr-tau) )-1/b*ln( f3(x,Tr)/f3(x-L,Tr-tau) )
* o" t, [- d1 f8 h( xelse
: ^) u8 |5 v; o( UUi0:=f0(x,Tr)*(f1(x,Tr)+1)- A# F' J7 [; f3 W
UiD:=ln( f2(x,Tr)*f0(x,Tr) )-1/b*ln( f3(x,Tr)/(1+b) )
4 Q* _8 o. o4 Z0 M- i9 q& L* uendif
& A g: k! X. a1 D1 C5 P5 J! L! Helse2 B( j9 v5 A0 n/ J9 e7 |* ?
Ui0:=0, UiD:=0
3 G! C& F4 l. z, ]2 }1 nendif
$ b! t: t6 \- I5 r& |if AB=1 then/ l2 `) B" k( ~8 s E @ M5 M
UindA0[i]:=Ui0* n& E, ?. l5 f6 w
UindAD[i]:=UiD1 j0 G5 g! ?1 Q1 w3 O& w
g1[i]:=a1*dt
7 z$ J& p4 @9 G j0 pif i>0
3 o+ S/ `% V5 ^9 }% l4 Y, \/ mthen
' ?) [* h. a" N `2 r) qg2[i]:=a1*sqrt(eps0/(PI*sigma*Tr))*dt
( V% A8 B( ^, U# f% n. Bendif0 B: J( X. x" n! c
else
* v$ a" I7 n9 W2 A& i. F0 F8 f$ pUindB0[i]:=Ui0
4 Q) e8 V0 ^5 q8 p3 S: H# @UindBD[i]:=UiD
! e! q* w: e! Q7 [8 I" s7 t4 nendif/ C$ A/ |( q( K9 a1 j+ u
ENDFOR6 K; H. _ \8 M$ V) s0 W) H% Z
ENDFOR
7 g4 p! H/ }" h) \i:=Tmax
0 X; ]9 K! T) m$ `, ]/ R" n% r* QWHILE i>1 DO
3 c& x6 V$ m- y3 \/ N! M+ Nuk[1...4]:=0" F7 ?1 @( k( t( Y. Z
FOR Tr:=1 TO i-1 DO, N M& z: X* X ~- F8 X: s4 }
uk[1]:=uk[1]+UindA0[Tr]*g1[i-Tr]
- X1 Y. A5 g7 i( M: Q9 q/ |* yuk[2]:=uk[2]+UindB0[Tr]*g1[i-Tr]
. h* L' z6 P! K2 S }0 G0 h1 \2 l/ L- a& I$ J3 N- a O/ A
uk[3]:=uk[3]+UindAD[Tr]*g2[i-Tr]+ m* _/ O0 i% _" O2 @" |" W
4 e! G1 e9 l1 ~! s" N0 D/ L
uk[4]:=uk[4]+UindBD[Tr]*g2[i-Tr]! r9 Y+ t6 q6 ^6 [
" ?8 n' ^- I# m* n& X5 C
ENDFOR* ~, x1 }8 [7 r4 P* l
UindA0[i]:=uk[1]+0.5*UindA0[i]*g1[0]
2 r3 D& { i, D9 N+ V6 V6 I- X" Z: wUindB0[i]:=uk[2]+0.5*UindB0[i]*g1[0]: X. m+ U9 B5 w) a2 t0 f. k `* z2 k
UindAD[i]:=uk[3]+(UindAD[i]*c2+UindAD[i-1]*c3)*c1
9 ]1 q" I; L; a2 jUindBD[i]:=uk[4]+(UindBD[i]*c2+UindBD[i-1]*c3)*c1
/ ]- V( A' i! d |7 @% oi:=i-1
( N+ d8 G( s: @# ^) }ENDWHILE/ N! F' ?1 V- l2 a" g/ x
Tr:=trunc(th/dt)
0 A' }# h( B, K% S- b+ h8 C, I) f4 ?8 Q$ _; V8 l
FOR i:=Tmax TO Tr BY -1 DO
1 u6 Z& h3 V, U7 `" t$ i# `" XUindA0[i]:=UindA0[i]-b1*UindA0[i-Tr]
6 `0 c- F- ^8 y! ~+ t9 R6 rUindB0[i]:=UindB0[i]-b1*UindB0[i-Tr]
/ a3 i: @" ]* i8 WUindAD[i]:=UindAD[i]-b1*UindAD[i-Tr]
5 k4 ?- ]: t, n* C3 wUindBD[i]:=UindBD[i]-b1*UindBD[i-Tr]; v5 n6 q& Z4 o! W1 D/ f: X, y
endif
d- X2 X% Q. u m* |( iENDFOR
/ N% |9 A' q" E1 y+ L# OENDINIT/ u |8 b& H! }8 }9 S, V) V+ W
EXEC
) j$ |9 p' `+ @" xFOR i:=1 to n DO
! X" Y+ M% _5 p. X G3 o/ VUrA[i]:=60*I0*b*(z[i]*UindA0[t/dt] - UindAD[t/dt]) +2*delay(UBP[i],tau-dt,1)-delay(UrB[i],tau,1)
$ e: X2 R9 {5 ]& \7 w) XUrB[i]:=60*I0*b*(z[i]*UindB0[t/dt] - UindBD[t/dt]) +2*delay(UAP[i],tau-dt,1)-delay(UrA[i],tau,1)
$ A* U; @/ u7 R( sENDFOR
% e1 H; s( ^! G/ h( |- VENDEXEC
2 F, q- g# \1 BENDMODEL
- }2 R! Q" |7 b- y
! U7 D+ J( F& I" o程序报错如下: p5 `3 n# t9 N& [4 P+ O
KILL = 422. The present statement is interpreted as a value assignment statement, and the preceding name is interpreted as a
u8 F4 l8 p4 l @variable to which a value is being assigned. The identification of this variable is interpreted as complete, and should now be
6 u! p( ?+ |( @7 Q+ ]: O& cfollowed by ":=", in the following format:
3 w @9 Q* v/ S- X0 _3 f variable_identification := expression
; j+ G! p( N' _4 e4 ^- B% \! @( V
3 U: ?3 j1 b2 @本人已经仔细检查了每个等式都加:=了,不知道为什么还是不行,有兴趣的可以仿真一下,大家交流交流。
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