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));
  L: d1 e; m+ |- H' Y3 _
E1=ES1*L1+ES2*L2+ES3*L3;
" r+ Z+ k* i8 J2 LE2=ES1*L3+ES2*L1+ES3*L2;
E3=ES1*L2+ES2*L3+ES3*L1;
E1r=real(E1);E1f=imag(E1);
E2r=real(E2);E2f=imag(E2);
0 R  Y7 `* v& p2 C- kE3r=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;
! X, [7 l. D! ZXR=X1*L1+X2*L2+X1*L3;
( X5 T& C6 p* b3 ]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;
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;
8 V; u# E/ T/ H, a. }# S5 o0 CZZ(4,1)=X;ZZ(4,2)=XP;ZZ(4,3)=XQ;ZZ(4,4)=RA;ZZ(4,5)=RB;ZZ(4,6)=RB;
( X4 J* g1 E% tZZ(5,1)=XP;ZZ(5,2)=X;ZZ(5,3)=XR;ZZ(5,4)=RB;ZZ(5,5)=RA;ZZ(5,6)=RB;
8 M% A) c2 G+ h6 j  G: Y1 rZZ(6,1)=XQ;ZZ(6,2)=XR;ZZ(6,3)=X;ZZ(6,4)=RB;ZZ(6,5)=RB;ZZ(6,6)=RA;

1 Y3 l- F8 H& R9 ~! M2 t. k; d9 oE=[E1r;E2r;E3r;E1f;E2f;E3f;];
' I7 ?! T8 S- Q$ Q, d* K- O- sII=inv(ZZ)*E;
IS1=II(1,1)+j*II(4,1);
7 v8 t/ c3 p0 e3 d% DIS2=II(2,1)+j*II(5,1);
IS3=II(3,1)+j*II(6,1);
- M0 G$ y9 s% l6 p: V5 NIS4=IS1+IS2+IS3;

2 H. j# X1 H1 ^% s$ n* m" ^4 ~abs(IS1)
abs(IS2)
% P; I6 }; ]' i  s) |" C( j2 h, a6 c+ Wabs(IS3)
) p6 r7 A# ^4 babs(IS4)

& V" r/ v( C1 l" C  x% c