Dear Tatiyan, Simplistic way to find the PTDF matrix is given below:
PTDF = inv(B)* Bf Where B = reduced nodal susceptance matrix Bf = reduced matrix with the branch susceptances This formula is also used in MATPOWER. best regards Neeraj Gupta Research Scholar Indian Institute of Technology Kanpur India Tatiana Vaskovskaya > I can't find info about PDTF. Can anybody give a formula for computing > PTDFs and/or a source where I can find it? >
