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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 : n5 k( s+ Q9 P7 x2 k$ o
& n, d; T/ E# CBranchData = [];
, B% T/ \$ v) L6 m/ mNodeData = []; # ] w3 [$ s6 I' @+ l+ x4 W
UB = 12.66; 1 T8 d! ^* { |' b$ {# N+ D
SB = 10; ) f, D) D* }: n) `% ?
ZB = UB^2/SB;
; S0 Z% h) y7 d' W* g; \BranchData(:,[3,4]) = BranchData(:,[3,4]) / ZB; 4 D: f, M" _' ~( T' \6 \; W0 ~
NodeData(:,[2,3]) = NodeData(:,[2,3]) / SB / 1000;
6 x5 |% H( |. B- `; eBranchData(:,[1,2]) = BranchData(:,[1,2]) + 1;
# x* ]5 D! u5 E) c. fNN = 33; 3 b. Q7 V! @8 Z( s( l( L5 z
A0 = zeros(NN);, a4 o' V1 k$ h( K( k+ m6 X
for n = 1:32: l' M0 g- |0 P4 v7 z, o
A0(BranchData(n,1),BranchData(n,2)) = 1;( a: ~" Z+ ]% ~7 \0 a9 L9 B$ K
end
2 |) j3 O& X& m& [A0T = A0';
, I$ z8 I! G$ E5 i1 ~S = [0;-NodeData(:,2) - i*NodeData(:,3)];
7 W2 E2 T8 M( M" U3 v* ?ZL = [0;BranchData(:,3) + i*BranchData(:,4)]; . X" L" w+ g$ Z- T
6 _8 X# R2 q- I% Q
V = ones(NN,1);
! j3 R- H8 B& s4 V# @V(1) = 1.00;
* c+ f; \" n3 J q. |1 ^$ G8 C. a& M. ~$ g8 U/ T8 d4 y+ b+ z/ w u
IL(NN,1) = -conj(S(NN) / V(NN));
7 \ T& ~, H8 Z! V) s3 {7 q d" w/ Z
Delta = 1;
- S( n1 t( p; F; mTempV = V; & A4 L. ] a+ j( Q+ E
' p( Z: h* V; B* zwhile Delta > 1e-8
7 L$ e& j* v0 a( p2 z IN = conj(S ./ V); 1 R$ j7 B; s" U) v5 p
- p! w4 |2 h5 L' Q8 u! O for n = 1:NN-12 D# x. O x% P Y) m
IL(NN-n) = A0(NN-n,NN-n+1:end) * IL(NN-n+1:end) - IN(NN-n);% 电流回代过程$ ?3 g* a# K5 V2 z# D7 I
end 8 G5 I0 u* X3 B) u
3 D; O1 C) l6 g0 [# k+ | for n = 2:NN1 B# S N1 p. p& F- \2 l
V(n) = A0T(n,1:n-1) * V(1:n-1) - ZL(n) * IL(n);% 电压前推过程
5 q5 D7 E0 M5 ?* g* R: A7 b8 a6 a" o& T end
# ^ R' r0 C+ c/ p7 M$ H0 S
; h, F" ]. U4 S! D# T8 } T( c, S Delta = max(abs(V-TempV));
1 h5 ]3 j" w9 @* J1 R TempV = V;
: K4 E4 @# Y; @end |
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