function deltF=func_deltF(Vmeasurement,Imeasurement,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);
    sparse(Loadi,1,-2*(real(Vmeasurement)-V1r(Loadi)),busNum,1);
    sparse(Loadi,1,-2*(imag(Vmeasurement)-V1i(Loadi)),busNum,1);
    -0*( [real(Imeasurement);imag(Imeasurement)]-[I1r;I1i]);
];

end