新手求大神指导指导啊，是不是模型设的有啥问题？

XIAN_ChZ57

为什么线路正方向故障只有正向行波，反向故障只有反向行波？
正确的应该是反向故障只有正向行波，正方向故障正向行波=k*反向行波
>> load('L1cy.mat')
>> L11=L1';
>> ua=L11(3501:3571,2)-L11(1501:1571,2);
>> ub=L11(3501:3571,3)-L11(1501:1571,3);
>> uc=L11(3501:3571,4)-L11(1501:1571,4);
>> ia=L11(3501:3571,5)-L11(1501:1571,5);
>> ib=L11(3501:3571,6)-L11(1501:1571,6);
>> ic=L11(3501:3571,7)-L11(1501:1571,7);
>> Q=[2 -1 -1]/3;
>> um1=Q*[ua ub uc]';
>> im1=Q*[ia ib ic]';
>> Zcm1=279.3;
>> uzl1=(um1+im1*Zcm1);
>> ufl1=(um1-im1*Zcm1);
>> t=35:0.01:35.7;
>> plot(t,uzl1,t,ufl1)
正方向故障时波形图