电缆金属护套环流

电力三兄弟

ES2=2*w*I*10^(-7)*(sqrt(3)/2*log(m*S/GMRs)-j*1/2*log(S/m/GMRs));
ES3=2*w*I*10^(-7)*(-sqrt(3)/2*log(m*S/GMRs)-j*1/2*log(n*n*S/m/GMRs));
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E1=ES1*L1+ES2*L2+ES3*L3;
7 s: ?  c+ F& @3 i9 e  yE2=ES1*L3+ES2*L1+ES3*L2;
9 n7 \% x0 g, T, E" lE3=ES1*L2+ES2*L3+ES3*L1;
% e6 N4 }% Z2 Y) A3 z1 ~0 nE1r=real(E1);E1f=imag(E1);
- l: c2 t; k5 F7 i5 i" ME2r=real(E2);E2f=imag(E2);
) B5 e) C, L+ i* FE3r=real(E3);E3f=imag(E3);%线芯电流引起的感应电势

% o# |/ T! _' Q8 JXP=X1*L1+X1*L2+X2*L3;
2 x. T9 V6 X" j. }% X* X; YXQ=X2*L1+X1*L2+X1*L3;
7 O+ D5 i* N0 X2 N+ Q: Y# m- zXR=X1*L1+X2*L2+X1*L3;
ZZ=zeros(6,6);%系数矩阵
ZZ(1,1)=RA;ZZ(1,2)=RB;ZZ(1,3)=RB;ZZ(1,4)=-X;ZZ(1,5)=-XP;ZZ(1,6)=-XQ;
  I6 o, t, d: \  ]# k& ~9 ]ZZ(2,1)=RB;ZZ(2,2)=RA;ZZ(2,3)=RB;ZZ(2,4)=-X1;ZZ(2,5)=-X;ZZ(2,6)=-XR;
; o  R  f; v9 f" Y' x- @; ?ZZ(3,1)=RB;ZZ(3,2)=RB;ZZ(3,3)=RA;ZZ(3,4)=-XQ;ZZ(3,5)=-XR;ZZ(3,6)=-X;
/ _! y* I: @: E  g  pZZ(4,1)=X;ZZ(4,2)=XP;ZZ(4,3)=XQ;ZZ(4,4)=RA;ZZ(4,5)=RB;ZZ(4,6)=RB;
7 {  }  C0 p; f1 J% UZZ(5,1)=XP;ZZ(5,2)=X;ZZ(5,3)=XR;ZZ(5,4)=RB;ZZ(5,5)=RA;ZZ(5,6)=RB;
ZZ(6,1)=XQ;ZZ(6,2)=XR;ZZ(6,3)=X;ZZ(6,4)=RB;ZZ(6,5)=RB;ZZ(6,6)=RA;

  r" z. y4 I- O/ o9 a* q7 SE=[E1r;E2r;E3r;E1f;E2f;E3f;];
II=inv(ZZ)*E;
" m4 s( y7 W* K5 r) i0 b+ J; D6 `5 hIS1=II(1,1)+j*II(4,1);
IS2=II(2,1)+j*II(5,1);
IS3=II(3,1)+j*II(6,1);
% q5 j2 H9 K2 _. Z, W4 d/ h1 dIS4=IS1+IS2+IS3;
6 f! }" t# ]4 P+ S) F- |
! a7 B* K# p0 M0 a* {abs(IS1)
8 E5 I! C8 |( `7 C" zabs(IS2)
abs(IS3)
abs(IS4)

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