用MODELS计算线路感应电压:程序如下:6 {, C4 [# O- Q
MODEL indloss& \; Q3 H, ~& f% D
CONST 5 d b1 @4 L. ]( B7 R' \, D
Tmax {VAL:500} * ~' W5 a" g1 `( U- a; Zn {VAL:2}# h7 \: X" _6 t( u3 J, X y$ Q
c {VAL:3.e8} % j J# A3 i! y/ @; ^ N
I0 {VAL:1} ! j: U/ u) O) |! Reps0 {val:8.85e-12} % p: W% v9 O' S+ p4 W9 \9 n" RINPUT UAP[0...n],UBP[0...n]6 m* O+ N& K. `" l+ B l4 y
DATA Y,XA,XB 3 }# l, w( b4 P4 ]7 A2 Z/ F/ x# ?1 az[1...n] {DFLT:10} ) h" b# A2 m6 U5 j1 W2 w6 D8 n# }( p
Im {DFLT:3e4} 1 d8 ^4 g; F* Q
tc {DFLT:5e-5} ' m0 K3 {- n$ t7 u& x4 A+ x7 `
th {DFLT:2e-6} . s1 L& {+ a: t4 V3 A4 Mv {DFLT:1.5e8} ( p/ {# k" S" N. G( M- I6 |3 O
sigma {DFLT:0.001} 3 Q6 f/ k; i8 f9 n0 A+ N& N
epsr {DFLT:10} ( h' W0 n- h3 W7 E
OUTPUT UrA[0...n],UrB[0...n]5 d# O; b, M8 J2 i# X
VAR UindA0[0...Tmax],UindB0[0...Tmax],g1[0...Tmax],g2[0...Tmax],2 f0 m- a9 F: Z; c' \
UindAD[0...Tmax],UindBD[0...Tmax],Ui0,UiD,; Z% m8 Q9 R( L1 J; N
UrA[0...n],UrB[0...n],Tr,k,i,AB,dt,uk[1..4],* |$ k8 k) Z. u2 h
b,L,x,tau,a1,b1,c1,c2,c34 {9 q0 I4 [+ H9 i0 ^
FUNCTION F0(x,tr):= (c*tr-x)/(y*y+(b*(c*tr-x))**2) ' M' z$ x5 ^1 O, ~4 \3 V% X: I+ XFUNCTION F1(x,tr):= (x+b*b*(c*tr-x))/sqrt((v*tr)**2+(1-b*b)*(x*x+y*y)) 4 H8 q- K/ Z) j. V9 `: jFUNCTION F2(x,tr):= x+b*b*(c*tr-x)+sqrt((v*tr)**2+(1-b*b)*(x*x+y*y))6 k- u$ P) j. W: z5 P
FUNCTION F3(x,tr):= (v*tr+sqrt((v*tr)**2+(1-b*b)*(x*x+y*y)))/sqrt(x*x+y*y)7 U( @: [, J: B
FUNCTION t0(x):= sqrt(x*x+y*y)/c 2 I! |. c( ^# L+ [& jHISTORY& z; L2 |& [: m, s0 D+ o
UrA[1...n] {dflt:0}8 ]- P) u+ F" z8 o" X" K
UrB[1...n] {dflt:0} $ o3 ^4 Q& S2 N3 A; {UAP[1...n] {dflt:0} $ D# Q. d8 R" |UBP[1...n] {dflt:0} . t2 O% e3 h3 z8 U- O9 IDELAY CELLS DFLT: (XA-XB)/(c*timestep)+19 v6 m, k1 }- F7 n
INIT $ C: k# m" S" f. O5 u: B6 {: nk:=sqrt(eps0*epsr/(PI*sigma*dt)) - y4 b; `6 i8 ^( w7 idt:= timestep b:=v/c L:=XA-XB tau:=L/c; b7 e H2 u! B1 E
a1:=Im/(I0*th) 4 M5 h) z+ u9 l8 X ?3 ~6 `! `* N% zb1:=0.5*th/(tc-th)+1 : }: u' m' j9 B; C1 S( j- {c1:=a1*k*dt/sqrt(epsr) 7 P( b( k) c4 D" ]. kc2:=-1.073*k+0.2153*(k**3)+4/3* Z- s: p a' ?. a/ O" h4 G
c3:=-0.2153*(k**3)+1/6' s k! Y4 |; O' R% X8 l
FOR AB:=1 TO 2 DO' x5 \9 k/ U$ e+ S7 `
if AB=1 then @. o, C# R7 j+ @
x:=XA else x:=-XB + |" _& m( [ k* N4 b8 P( tendif # ?$ T8 o; g* R2 s3 D- lFOR i:=0 TO Tmax DO v4 ?9 \( t$ e3 H% H% H) Y! L9 _# oTr:=i*dt ' j4 h1 X" ^5 |1 J, mif Tr>t0(x)+ o7 p6 h" Z: a" J' }1 M
then3 k! [/ l8 A3 T0 ~. B" w
if Tr>t0(x-L)+tau & i8 B( Q. O$ p* s- Sthen8 K; Z9 I7 `. Z
Ui0:=f0(x,Tr)*(f1(x,Tr)-f1(x-L,Tr-tau)) 2 K/ f7 v4 c2 ^# R8 I8 JUiD:=ln( f2(x,Tr)/f2(x-L,Tr-tau) )-1/b*ln( f3(x,Tr)/f3(x-L,Tr-tau) ) 8 X, c; ^: y q& s# telse 4 Y |7 P0 L: [. |$ @' BUi0:=f0(x,Tr)*(f1(x,Tr)+1)* Z Z. w& [: k8 X* M. U
UiD:=ln( f2(x,Tr)*f0(x,Tr) )-1/b*ln( f3(x,Tr)/(1+b) ), q& g: L2 t" c; E' J( L
endif2 f2 T# j" |( v9 }; i% s
else * Y; W5 m$ G% \Ui0:=0, UiD:=05 M; v) W$ |& W! Z' m3 E- G
endif @5 z3 O: y+ i0 y. b8 ]
if AB=1 then- U8 P3 x+ D$ k$ Z! R
UindA0[i]:=Ui00 s P4 F! K' {- O+ {; R, ^7 p6 W
UindAD[i]:=UiD # P- w! \$ l U6 m3 ig1[i]:=a1*dt# m L1 X8 D6 ]* g8 q& C
if i>0; `8 M3 N& H3 t$ t0 q% L
then 1 n6 S0 c# Q6 M2 \9 ~- sg2[i]:=a1*sqrt(eps0/(PI*sigma*Tr))*dt / ]/ o$ x( ^" y, k7 mendif$ i9 M; _. J3 G/ G5 Y1 _
else , G( o& S6 D. JUindB0[i]:=Ui0 : P) p, l9 {1 y6 F/ LUindBD[i]:=UiD . O1 h9 O1 |5 f4 [! [7 C8 iendif 5 L9 Z6 E5 _/ T( wENDFOR) @ v# p- U! v, H% R, p: \
ENDFOR' p4 m. V! b. A; W
i:=Tmax# d- [. ^' U1 r& L% C; ^& u5 P
WHILE i>1 DO" U" E1 B, t6 D6 B( T
uk[1...4]:=0! e2 ?0 [/ b5 w n8 p/ \/ z
FOR Tr:=1 TO i-1 DO5 Z: D/ n3 U, V& \4 c2 E2 x8 A$ L
uk[1]:=uk[1]+UindA0[Tr]*g1[i-Tr]3 s, x4 Q; Y4 @1 v0 s
uk[2]:=uk[2]+UindB0[Tr]*g1[i-Tr]1 O4 I0 a3 Z. d( [0 f- E
% [( B, } A' m" h4 Q2 vuk[3]:=uk[3]+UindAD[Tr]*g2[i-Tr] " D# N' b) g5 r0 c5 ~1 \3 Q& f$ o ; }, \6 e" h' z- R' buk[4]:=uk[4]+UindBD[Tr]*g2[i-Tr]8 O: S9 u1 D% e8 ^8 W$ _+ c
& k( f! q: W) O" s, wENDFOR 1 _; M) Z, c' B* C- B+ _UindA0[i]:=uk[1]+0.5*UindA0[i]*g1[0]: d7 d# [1 A( S+ R7 u1 I4 f* g0 j
UindB0[i]:=uk[2]+0.5*UindB0[i]*g1[0] ! @2 ^4 U# h2 ]+ Y2 z: @UindAD[i]:=uk[3]+(UindAD[i]*c2+UindAD[i-1]*c3)*c1 ! S" x# O! Y% ~5 D, ^& JUindBD[i]:=uk[4]+(UindBD[i]*c2+UindBD[i-1]*c3)*c1 ( b( L& M; h, x6 m# b ni:=i-1' y0 l! \* e' f8 y E
ENDWHILE ; R: x0 c3 l+ ^* b. @& z! N. s4 nTr:=trunc(th/dt) : g3 M+ }- T- Z6 `" m: }) U4 w* ]; c+ {( L( t$ `' \9 a% c1 c2 J0 Z
FOR i:=Tmax TO Tr BY -1 DO % M6 M M0 K7 w* e( wUindA0[i]:=UindA0[i]-b1*UindA0[i-Tr]: i; C9 l6 C7 h+ H6 b2 p0 n8 k
UindB0[i]:=UindB0[i]-b1*UindB0[i-Tr]' h+ L4 S1 Y; y
UindAD[i]:=UindAD[i]-b1*UindAD[i-Tr] f ]' `5 }' M! U0 v4 f: a
UindBD[i]:=UindBD[i]-b1*UindBD[i-Tr]7 {7 z/ m- c; n# S, ^: R
endif/ U z/ M* w5 A5 ~5 C, m/ F' w
ENDFOR 4 X) U8 f; E0 |- X! J! RENDINIT% d) T% A* n5 D
EXEC& D$ H- I6 s+ a* |" C
FOR i:=1 to n DO / @2 n+ R: g4 h n% e% M: K& PUrA[i]:=60*I0*b*(z[i]*UindA0[t/dt] - UindAD[t/dt]) +2*delay(UBP[i],tau-dt,1)-delay(UrB[i],tau,1)2 G) A8 e+ \5 {5 B
UrB[i]:=60*I0*b*(z[i]*UindB0[t/dt] - UindBD[t/dt]) +2*delay(UAP[i],tau-dt,1)-delay(UrA[i],tau,1) 0 y! j2 u! q$ Z' a9 rENDFOR . ]# T- S! N }' A0 |3 WENDEXEC 6 R. O9 o" j( O& ]ENDMODEL + C' i2 z7 Z4 y( A, v$ @/ R; w # w9 e5 C& g& X程序报错如下& t" C2 ^5 q4 G V
KILL = 422. The present statement is interpreted as a value assignment statement, and the preceding name is interpreted as a/ q2 H/ M, N, a, Z
variable to which a value is being assigned. The identification of this variable is interpreted as complete, and should now be4 I* Y8 C: v% B* \6 o4 l
followed by ":=", in the following format:" A6 N% F* q5 h( B3 \8 p
variable_identification := expression $ r0 _* X! {4 i) C8 ?9 P' S7 T9 `/ z0 x$ k+ `, f
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。 & X3 q2 x7 q) O) G8 ^: t