See lines 100-110 in newtopf.m. That's where the Jacobian is computed, by calling dSbus_dV, which computes the derivatives of complex power injections w.r.t. bus voltages.
-- Ray Zimmerman Senior Research Associate 211 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Jun 24, 2010, at 1:40 PM, amir khorsandi wrote: Dear all. I have one question. I need to change jacobian matrix in power flow calculations. but I don't know how I do it. please help me. thanks. Yours sincerely Amir khorsandi
