function deltF=func_deltF(measurement,busNum,fsY11,Loadi,V1r,V1i,I1r,I1i)
%t1=PG(setdiff(PVi,Balance));
% t2=Volt'*Volt;
% t3=real(GB).*cos(AngleIJMat)+imag(GB).*sin(AngleIJMat);
% t4=t2.*t3;
% t5=sum(t4,2);
% PBal=t5(Balance);
% PPG=([PQ(1),PBal])';%暂时用土办法处理一下
%% 
deltF=[
    zeros(busNum*2,1);
    -2*( [real(measurement);imag(measurement)]-[I1r;I1i]);
];

end