function deltH=func_deltH(Busnum,Volt,Y,UAngel,r,c,Angle,Loadi)
dH_dPD=[sparse(1:size(Loadi,1),Loadi,-ones(size(Loadi,1),1),size(Loadi,1),Busnum*3) sparse(size(Loadi,1),Busnum*3)];
dH_dQD=[sparse(size(Loadi,1),Busnum*3) sparse(1:size(Loadi,1),Loadi,-ones(size(Loadi,1),1),size(Loadi,1),Busnum*3)];
dH_dx = jacobian_M(Busnum,Volt,Y,Angle,UAngel,r,c);  %ÐγÉÑſ˱ȾØÕó
deltH=[dH_dPD;dH_dQD;dH_dx'];

end