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发表于 2011-7-10 06:55:05
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本帖最后由 wjscar 于 2011-7-10 06:57 编辑
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BranchData = [];
) c4 C0 R" r/ \. D+ B. V7 A, ZNodeData = []; ! G/ g* Z& X6 ]2 b5 G0 S
UB = 12.66;
; @$ U. Y; A, c8 p/ CSB = 10; 4 w9 C7 b: ]& w6 i
ZB = UB^2/SB;
3 m8 n% U+ n' YBranchData(:,[3,4]) = BranchData(:,[3,4]) / ZB;
, D# c; P* w" p. {3 n3 oNodeData(:,[2,3]) = NodeData(:,[2,3]) / SB / 1000;
' N# h2 p" n. ?BranchData(:,[1,2]) = BranchData(:,[1,2]) + 1; $ i. J+ }6 U- T9 N( U
NN = 33;
# s1 }. U, K" _A0 = zeros(NN);8 H5 I' v( p& N/ i3 `+ X+ Y- A! K2 l
for n = 1:32; N4 k; f S; i$ r' w
A0(BranchData(n,1),BranchData(n,2)) = 1;
4 H6 I _, z- a7 n$ @3 d* gend
7 s7 U$ L9 ]+ P) JA0T = A0'; 6 N8 P/ N1 d5 o: g( z
S = [0;-NodeData(:,2) - i*NodeData(:,3)]; 6 A! W9 Q6 @: E2 l" C+ l9 m
ZL = [0;BranchData(:,3) + i*BranchData(:,4)];
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V = ones(NN,1);
$ W+ W7 c$ X5 N: H3 jV(1) = 1.00;
S0 X' _ ?* |$ [) j5 y4 h/ w0 t- D4 Z# v4 s
IL(NN,1) = -conj(S(NN) / V(NN)); / N* z0 ~* c# T# G$ l
+ c" B H/ Y/ D/ e( U
Delta = 1; 1 ]; ?+ Z% }* W6 S5 j, h% K5 k" A) E
TempV = V;
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0 C w: o' n4 Q+ |while Delta > 1e-8
1 U! Q, N+ H: q( ~0 k IN = conj(S ./ V);
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* z* [. H, x! } for n = 1:NN-19 B; c* b5 J+ b7 N
IL(NN-n) = A0(NN-n,NN-n+1:end) * IL(NN-n+1:end) - IN(NN-n);% 电流回代过程+ X0 s x* R8 _9 [/ j; L0 f
end & c7 C9 O) F% E& N1 M# m
; S# F" y5 }4 p, U% A7 D) v: c! g for n = 2:NN
4 R% f; o1 I6 _$ C V(n) = A0T(n,1:n-1) * V(1:n-1) - ZL(n) * IL(n);% 电压前推过程
f7 A9 z' z! @$ N. ^ end
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Delta = max(abs(V-TempV));
3 ]1 A9 P& e; b6 t8 m TempV = V; - ~- `& i9 _: |& N- m5 U! W! F
end |
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