function deltH=func_deltH(Busnum,Volt,PVi,AngleIJMat,Y,GB,PGi,UAngel,r,c,Angle,Loadi)

dH_dPg=sparse(1:size(PGi,1),PGi,ones(size(PGi,1),1),size(PGi,1),2*Busnum);
dH_dQr=sparse(1:size(PVi,1),PVi+Busnum,ones(size(PVi,1),1),size(PVi,1),2*Busnum);
dH_dPD=[sparse(1:size(Loadi,1),Loadi,-ones(size(Loadi,1),1),size(Loadi,1),Busnum) sparse(size(Loadi,1),Busnum)];
dH_dx = jacobian_M3(Busnum,Volt,Y,Angle,UAngel,r,c);  %ÐγÉÑſ˱ȾØÕó
deltH=[dH_dPg;dH_dQr;dH_dPD;dH_dx'];
end