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));
& o* O2 ~1 N* x5 kES3=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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; A! A9 o* z3 W7 Y- vE1=ES1*L1+ES2*L2+ES3*L3;
E2=ES1*L3+ES2*L1+ES3*L2;
, |  [. I: e3 Y* n/ j0 Y$ H% AE3=ES1*L2+ES2*L3+ES3*L1;
E1r=real(E1);E1f=imag(E1);
E2r=real(E2);E2f=imag(E2);
E3r=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;
1 O  k; S% Z1 @: O2 wXR=X1*L1+X2*L2+X1*L3;
ZZ=zeros(6,6);%系数矩阵
) b& D/ I; Q9 d# b* cZZ(1,1)=RA;ZZ(1,2)=RB;ZZ(1,3)=RB;ZZ(1,4)=-X;ZZ(1,5)=-XP;ZZ(1,6)=-XQ;
. U2 V# c0 O- ^* v1 `ZZ(2,1)=RB;ZZ(2,2)=RA;ZZ(2,3)=RB;ZZ(2,4)=-X1;ZZ(2,5)=-X;ZZ(2,6)=-XR;
! O5 p5 @" `6 J( l0 S/ MZZ(3,1)=RB;ZZ(3,2)=RB;ZZ(3,3)=RA;ZZ(3,4)=-XQ;ZZ(3,5)=-XR;ZZ(3,6)=-X;
% l) }* I, d4 k" ?2 u# ?$ YZZ(4,1)=X;ZZ(4,2)=XP;ZZ(4,3)=XQ;ZZ(4,4)=RA;ZZ(4,5)=RB;ZZ(4,6)=RB;
$ B1 k: ^' W3 ~ZZ(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;
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E=[E1r;E2r;E3r;E1f;E2f;E3f;];
II=inv(ZZ)*E;
IS1=II(1,1)+j*II(4,1);
$ P% K- u" s! ]- }IS2=II(2,1)+j*II(5,1);
IS3=II(3,1)+j*II(6,1);
5 I* r. {; ^$ ]IS4=IS1+IS2+IS3;
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abs(IS1)
) E' k1 ^" \$ ^/ k' Y1 f' Z4 Iabs(IS2)
# H! c3 v" x& O8 L0 aabs(IS3)
abs(IS4)
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