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));
  I7 k2 w* d5 _7 r# xES3=2*w*I*10^(-7)*(-sqrt(3)/2*log(m*S/GMRs)-j*1/2*log(n*n*S/m/GMRs));

3 I4 ?. V6 j# f% A+ k# FE1=ES1*L1+ES2*L2+ES3*L3;
) o: R  a2 [/ j9 B2 `" B3 T# m: kE2=ES1*L3+ES2*L1+ES3*L2;
( Y; d4 S9 ]: g0 pE3=ES1*L2+ES2*L3+ES3*L1;
5 q9 l; x- ^- d( g2 W- wE1r=real(E1);E1f=imag(E1);
: D! M9 }. _! m% }E2r=real(E2);E2f=imag(E2);
% ~. O& A) J- c0 d( i- V' _8 f7 L# ^8 hE3r=real(E3);E3f=imag(E3);%线芯电流引起的感应电势

XP=X1*L1+X1*L2+X2*L3;
XQ=X2*L1+X1*L2+X1*L3;
; P3 P: d& C% s$ `1 n4 AXR=X1*L1+X2*L2+X1*L3;
ZZ=zeros(6,6);%系数矩阵
1 M- ?1 a( r7 _- EZZ(1,1)=RA;ZZ(1,2)=RB;ZZ(1,3)=RB;ZZ(1,4)=-X;ZZ(1,5)=-XP;ZZ(1,6)=-XQ;
ZZ(2,1)=RB;ZZ(2,2)=RA;ZZ(2,3)=RB;ZZ(2,4)=-X1;ZZ(2,5)=-X;ZZ(2,6)=-XR;
ZZ(3,1)=RB;ZZ(3,2)=RB;ZZ(3,3)=RA;ZZ(3,4)=-XQ;ZZ(3,5)=-XR;ZZ(3,6)=-X;
ZZ(4,1)=X;ZZ(4,2)=XP;ZZ(4,3)=XQ;ZZ(4,4)=RA;ZZ(4,5)=RB;ZZ(4,6)=RB;
+ W( x" f% c0 D2 K  FZZ(5,1)=XP;ZZ(5,2)=X;ZZ(5,3)=XR;ZZ(5,4)=RB;ZZ(5,5)=RA;ZZ(5,6)=RB;
6 I9 ]0 q; T" j% ]" D% Z" L# _5 nZZ(6,1)=XQ;ZZ(6,2)=XR;ZZ(6,3)=X;ZZ(6,4)=RB;ZZ(6,5)=RB;ZZ(6,6)=RA;

- `; U+ T% d6 Z& w9 RE=[E1r;E2r;E3r;E1f;E2f;E3f;];
2 O* k0 a# x4 f: c& l0 x: mII=inv(ZZ)*E;
2 `9 p' s, T6 M2 pIS1=II(1,1)+j*II(4,1);
IS2=II(2,1)+j*II(5,1);
7 @: Z2 _7 U( w  ?IS3=II(3,1)+j*II(6,1);
+ j; e3 w1 d8 ^, XIS4=IS1+IS2+IS3;
6 s/ E1 q7 f6 ^7 V9 b
8 [$ y4 @8 y' gabs(IS1)
- P% H( }) B/ O- k% Cabs(IS2)
6 [6 b, v' {  ^8 ?  z% ~. pabs(IS3)
3 Q( H9 H0 ~  n9 N6 r  ]  Q2 |abs(IS4)

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