function deltdeltF=func_deltdeltF(Busnum,GenC,PVi,PGi,wG,wD,PD0)

ContrlCount=size(PVi,1)+size(PGi,1)+Busnum*3; %P,Q,Volt theta这些控制变量数
C=[wG' zeros(size(PVi))' wD'];
sizeC=size(C,2);
diagC=sparse(1:sizeC,1:sizeC,C,sizeC,sizeC);
deltdeltF=[
    diagC*2,sparse(sizeC,ContrlCount-sizeC);
    sparse(ContrlCount-sizeC,ContrlCount);
    ];
end