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用MODELS计算线路感应电压:程序如下:& @4 I5 {7 M! ?; g; x
MODEL indloss1 V {" |0 q9 x9 Z
CONST . }4 K V* y, k6 r1 e7 [# S7 l7 ^5 v
Tmax {VAL:500}
$ F. [1 V- i6 v, c& A; Kn {VAL:2}
: x& F3 t+ [' |$ S- [c {VAL:3.e8} $ n) d& N) Q7 J& m; {; E# t$ ^ u
I0 {VAL:1} % R4 @" P- _9 t/ r4 {1 I- c
eps0 {val:8.85e-12}
0 n1 h; \8 r' ?3 G l) J8 Y4 OINPUT UAP[0...n],UBP[0...n]
7 E. y6 ~+ P' k$ F5 N0 X1 [7 w9 zDATA Y,XA,XB2 u" @2 V" a5 A- q
z[1...n] {DFLT:10} - M; ]# f5 x" R, C" N
Im {DFLT:3e4} ' f9 @* \; Y$ o4 A/ l: s
tc {DFLT:5e-5} # L6 t4 q3 M* ]/ c
th {DFLT:2e-6}4 E, o6 t, a- R5 w5 f% S( R: |# r
v {DFLT:1.5e8} $ ^% T3 q4 Y3 \0 u; m- D: D7 _ n# B
sigma {DFLT:0.001}
$ s. L5 K5 v0 e" \epsr {DFLT:10}
" {$ k% x3 M$ }4 p" ^- g' }OUTPUT UrA[0...n],UrB[0...n]
- Y5 Z) H& L$ |0 qVAR UindA0[0...Tmax],UindB0[0...Tmax],g1[0...Tmax],g2[0...Tmax],
& u# f, R2 R" x/ VUindAD[0...Tmax],UindBD[0...Tmax],Ui0,UiD,6 ~1 c: ]& t0 q8 j
UrA[0...n],UrB[0...n],Tr,k,i,AB,dt,uk[1..4],8 w# m% U ` }! K& ~
b,L,x,tau,a1,b1,c1,c2,c3
! N5 E9 B4 v/ e5 N" m+ MFUNCTION F0(x,tr):= (c*tr-x)/(y*y+(b*(c*tr-x))**2), l3 _ Z( {5 m& C6 _
FUNCTION F1(x,tr):= (x+b*b*(c*tr-x))/sqrt((v*tr)**2+(1-b*b)*(x*x+y*y))
2 ~; N- I2 _% {! a: IFUNCTION F2(x,tr):= x+b*b*(c*tr-x)+sqrt((v*tr)**2+(1-b*b)*(x*x+y*y))
% n9 o5 U& a1 R1 M+ @FUNCTION F3(x,tr):= (v*tr+sqrt((v*tr)**2+(1-b*b)*(x*x+y*y)))/sqrt(x*x+y*y)) c( U; Q% I" I7 {
FUNCTION t0(x):= sqrt(x*x+y*y)/c
0 W+ i+ ]. C" u8 R$ HHISTORY4 K4 A* R1 ~2 ^$ W% w5 Z. ?& A
UrA[1...n] {dflt:0}
, O* @- ^9 W$ @! f! T# W% N/ z4 aUrB[1...n] {dflt:0}( D$ o0 f, U. e Z0 v
UAP[1...n] {dflt:0}( m. C/ }! B9 g0 A9 |# m' y) f
UBP[1...n] {dflt:0}( M3 G/ R7 Y( A. x- J; G
DELAY CELLS DFLT: (XA-XB)/(c*timestep)+1
( o9 U3 w' Q; ^/ ?0 D. sINIT6 D1 G2 o& }0 A6 n
k:=sqrt(eps0*epsr/(PI*sigma*dt)), H- W k) F6 `( A, Q; @
dt:= timestep b:=v/c L:=XA-XB tau:=L/c1 |. l/ ?6 c0 E* I
a1:=Im/(I0*th)
7 W$ y2 L) v+ }5 r8 M+ p) Vb1:=0.5*th/(tc-th)+1+ [* R( b% I* a& b$ k
c1:=a1*k*dt/sqrt(epsr)
! @6 b+ M K: xc2:=-1.073*k+0.2153*(k**3)+4/32 z2 q: s8 O5 l/ w
c3:=-0.2153*(k**3)+1/6
) e3 |) t/ i8 }% H2 `8 W) P FOR AB:=1 TO 2 DO0 H/ i; ^1 g/ Q! v2 U+ {6 z$ [
if AB=1 then- n' \( G2 W$ I' I
x:=XA else x:=-XB: F! o, j1 ^& F/ w
endif
v# \5 [/ U4 j, G5 fFOR i:=0 TO Tmax DO
/ p" Z' E8 D% _4 v, k! UTr:=i*dt$ P" P1 A2 I. V! p
if Tr>t0(x)8 n% |' P, \2 J' A0 y& Q' E
then& U1 D& U: X ^- s
if Tr>t0(x-L)+tau
0 p8 H d2 B9 r2 k" T5 Mthen
# B; C9 M. S+ I: zUi0:=f0(x,Tr)*(f1(x,Tr)-f1(x-L,Tr-tau))
" ?- I( W* W1 n' Z8 \( _UiD:=ln( f2(x,Tr)/f2(x-L,Tr-tau) )-1/b*ln( f3(x,Tr)/f3(x-L,Tr-tau) ), e( a! T: \/ B- N- E1 }: v
else* f; o2 V- [8 F4 G7 d
Ui0:=f0(x,Tr)*(f1(x,Tr)+1)) \% N; S2 G, w+ n2 h6 `$ c: }
UiD:=ln( f2(x,Tr)*f0(x,Tr) )-1/b*ln( f3(x,Tr)/(1+b) )4 U* E) Y! l4 a; |& M1 a
endif D+ f: ~% J/ e$ F
else
0 F# v! b; [# C) }6 M2 ZUi0:=0, UiD:=0
" {9 e& |- n7 h& b5 |endif% s; K0 Y; y5 Z5 K9 ]& h( Z, |
if AB=1 then {+ _. u. T$ v- r5 ^2 l7 C9 U3 }
UindA0[i]:=Ui0
( u/ }! |( b+ y; oUindAD[i]:=UiD9 h: ]1 U! Z) T; M( b [3 U. {
g1[i]:=a1*dt
0 E( \! k* y: O% E4 |1 G! Wif i>0
3 V; P6 J0 z& \. Y+ p5 o6 p9 Athen) E7 l9 d' g1 \% @ _" t1 A
g2[i]:=a1*sqrt(eps0/(PI*sigma*Tr))*dt3 V3 b/ q0 i# O
endif
0 ^7 u* s& [( W# E4 C$ @$ ]else
. y" L2 ~' {; p7 f FUindB0[i]:=Ui0
- @7 j- y5 w/ | ~3 u3 Y2 O1 w) nUindBD[i]:=UiD
6 o) V2 H7 W% l" Z7 z, h0 ?( vendif1 B" `) l4 I& Y* i6 T
ENDFOR% V, J$ k0 o: ?. R% t4 T& u& f4 ?' x
ENDFOR
/ D, S: g/ i: h) c; X9 yi:=Tmax, Z* c$ T& Z% D# Y6 H, y, ^
WHILE i>1 DO
& Q7 C% ?+ b* ^; `9 e8 D- Ruk[1...4]:=0
$ _' S2 X* V; K$ ?0 }/ `) wFOR Tr:=1 TO i-1 DO* }; J- m' ^9 h$ z6 H$ O) q$ g f
uk[1]:=uk[1]+UindA0[Tr]*g1[i-Tr]
+ n/ E6 v, @/ o A) h7 @uk[2]:=uk[2]+UindB0[Tr]*g1[i-Tr]
6 M1 w) W! e$ P' A& C3 D* ]+ T$ \) k% }- v6 K4 E
uk[3]:=uk[3]+UindAD[Tr]*g2[i-Tr]
5 a) T* H0 v6 l
% Z4 P' q; B- ^" }7 n$ n G6 Duk[4]:=uk[4]+UindBD[Tr]*g2[i-Tr]7 ?' s: [: |' f
2 ^" D6 x. W8 c. T. E
ENDFOR
; [; ?7 N2 Y" l/ W) k* X6 B4 C6 K* RUindA0[i]:=uk[1]+0.5*UindA0[i]*g1[0]
i% }5 W3 s7 w+ E4 j8 z! p% XUindB0[i]:=uk[2]+0.5*UindB0[i]*g1[0]
" Z/ [5 s s6 d K6 [0 A2 r) dUindAD[i]:=uk[3]+(UindAD[i]*c2+UindAD[i-1]*c3)*c1+ k! d, ~1 ^6 H7 s1 W
UindBD[i]:=uk[4]+(UindBD[i]*c2+UindBD[i-1]*c3)*c18 ?1 Y6 o( R' |) o5 l% Z
i:=i-1
& B0 k, d! a8 lENDWHILE
& T7 T) C5 W; H- g' ~* H8 }* ?Tr:=trunc(th/dt)% X$ [7 Y" E6 y: P6 c8 ]. P. A1 v
. G' l) k: A# y) b! cFOR i:=Tmax TO Tr BY -1 DO& L3 ~- W0 u. z% N) _
UindA0[i]:=UindA0[i]-b1*UindA0[i-Tr]
3 D4 V9 d# k, mUindB0[i]:=UindB0[i]-b1*UindB0[i-Tr]5 P6 {+ j7 v+ j! a; ?1 \$ ]
UindAD[i]:=UindAD[i]-b1*UindAD[i-Tr]0 X6 r. K# k/ H, t; Z: s6 Q
UindBD[i]:=UindBD[i]-b1*UindBD[i-Tr]7 e+ k* i2 r# O i# X j
endif0 ^: L; J1 {8 {9 ]3 `( i V1 H$ k. M
ENDFOR/ b5 B1 v9 v4 j9 }
ENDINIT) T7 M' M) b9 b6 w2 T! o
EXEC
' ?) ~$ p+ y; IFOR i:=1 to n DO7 L$ J$ h; e4 Q9 q+ H8 X
UrA[i]:=60*I0*b*(z[i]*UindA0[t/dt] - UindAD[t/dt]) +2*delay(UBP[i],tau-dt,1)-delay(UrB[i],tau,1)# k' t( ^4 A8 |$ H0 }4 d7 y! d6 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)
' B* T+ s0 f1 N& D LENDFOR) l2 J# H5 o, n) @
ENDEXEC
* I0 K9 ~) }, u* \2 NENDMODEL
* `; O& {: ^- C8 H9 I# `, E9 f3 j h0 C0 h) o* i
程序报错如下7 q5 |% Q( a4 q _" H2 {* @4 ~
KILL = 422. The present statement is interpreted as a value assignment statement, and the preceding name is interpreted as a
2 W z# K2 Z+ W0 S3 ^, t' ~3 e& Fvariable to which a value is being assigned. The identification of this variable is interpreted as complete, and should now be
+ g, X6 |6 T2 ?8 Ufollowed by ":=", in the following format:! ?0 T/ V7 S3 ]
variable_identification := expression
/ X6 v+ d! o( S# M/ c; O5 k/ U$ `+ U" F' B
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。' {0 ~# O/ P( `* y* B1 b
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