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));
# p  C7 j6 }% Y* P# V8 `ES3=2*w*I*10^(-7)*(-sqrt(3)/2*log(m*S/GMRs)-j*1/2*log(n*n*S/m/GMRs));

9 T1 ~' K9 K, N5 j7 z: ]9 ]E1=ES1*L1+ES2*L2+ES3*L3;
E2=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);
& @4 J- ~* ]& T# E3 GE3r=real(E3);E3f=imag(E3);%线芯电流引起的感应电势
0 x" _' |2 U; }
XP=X1*L1+X1*L2+X2*L3;
XQ=X2*L1+X1*L2+X1*L3;
0 M5 {( M; [  z1 Q- xXR=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;
ZZ(2,1)=RB;ZZ(2,2)=RA;ZZ(2,3)=RB;ZZ(2,4)=-X1;ZZ(2,5)=-X;ZZ(2,6)=-XR;
! H3 p9 m* o; `4 QZZ(3,1)=RB;ZZ(3,2)=RB;ZZ(3,3)=RA;ZZ(3,4)=-XQ;ZZ(3,5)=-XR;ZZ(3,6)=-X;
$ z, D3 L/ W$ I8 s6 g" F  V; AZZ(4,1)=X;ZZ(4,2)=XP;ZZ(4,3)=XQ;ZZ(4,4)=RA;ZZ(4,5)=RB;ZZ(4,6)=RB;
) _0 s' x0 P% Q* j. DZZ(5,1)=XP;ZZ(5,2)=X;ZZ(5,3)=XR;ZZ(5,4)=RB;ZZ(5,5)=RA;ZZ(5,6)=RB;
  x! l5 z$ Y" t$ N7 sZZ(6,1)=XQ;ZZ(6,2)=XR;ZZ(6,3)=X;ZZ(6,4)=RB;ZZ(6,5)=RB;ZZ(6,6)=RA;

E=[E1r;E2r;E3r;E1f;E2f;E3f;];
4 S5 `) X. O7 F& p+ f( m  F5 y4 EII=inv(ZZ)*E;
; B. ?. q% w' r) d) qIS1=II(1,1)+j*II(4,1);
) S5 M7 z  ^9 b: YIS2=II(2,1)+j*II(5,1);
, b1 ~4 V0 w- m( `IS3=II(3,1)+j*II(6,1);
IS4=IS1+IS2+IS3;

+ c& W2 Y8 \; R4 `/ }+ @# M# y; babs(IS1)
: e& y: i  w) M. w3 `( Nabs(IS2)
abs(IS3)
0 r/ V' U2 O' m- O$ _& J! uabs(IS4)