function deltG=func_deltGstate1(busNum,Loadi,I1r,I1i)
deltG=[
    zeros(busNum*2,length(Loadi)*2);
    1*eye(length(Loadi)*1),zeros(length(Loadi)*1);%I1r
    zeros(length(Loadi)*1),1*eye(length(Loadi)*1);%I1i
];
end