Dear Jigna, PTDF matrix for both case (contingency of transmission lines and with out contingency) will be different due to the changing parameters of the network.
The coefficients of PTDF matrix will change by their base case value (without contingency), and the dimension of PTDF matrix will reduce by number of contingent transmission lines. Moreover, the computation burden is less compare to run of DC-load flow. Since, DC-load flow is iterative,comparatively. Best regards Sincerely yours Neeraj Gupta Ray Zimmerman > I'm not sure I understand the question. There is less computation involved > in calculating the PTDF for a system with a line out than for the same > system with the line in service (i.e. one row becomes all zeros and does > not need to be computed). If that doesn't answer your question, you'll > have to try rephrasing it. > > -- > Ray Zimmerman > Senior Research Associate > 419A Warren Hall, Cornell University, Ithaca, NY 14853 > phone: (607) 255-9645 > > > > > On Mar 2, 2012, at 1:32 AM, jigna pandya wrote: > >> Respected Ray sir, >> Does the outage simulation of a line produce any computational burden in >> calculating PTDF? >> thanks >> > >
