The makeJac() function can return either the full Jacobian (48x48) or the one
used by the Newton power flow (36x36). It consists of four blocks, with the two
block rows corresponding to real (P) and reactive (Q) power injections and the
block columns corresponding to voltage angles (A) and magnitudes (V). The full
matrix includes all buses. The smaller one includes PV and PQ buses for P and
A, and only PQ buses for Q and V.
Hopefully this puts you on the right track.
Ray
> On Dec 9, 2014, at 6:43 AM, zahra shiravi <[email protected]> wrote:
>
> Dear all
> i want to know the size of the jacobian matrix. for example for 24 bus ieee
> test system size of the jac matrix is 36. i want voltage sensitivity to the
> reactive power injection. i must inverse jac matrix and omit some columns and
> rows. how many columns and rows i must omit??
> Thanks for helping me.
> Zahra
