See Faq#5 Why does MATPOWER power flow not converge?<http://www.pserc.cornell.edu//matpower/#pfconvergence>
Shri From: <Syed>, Waqas Ahmad Raazi <waqas.s...@rwth-aachen.de<mailto:waqas.s...@rwth-aachen.de>> Reply-To: MATPOWER discussion forum <matpowe...@list.cornell.edu<mailto:matpowe...@list.cornell.edu>> Date: Saturday, August 8, 2015 at 5:03 AM To: "MATPOWER-L@cornell.edu<mailto:MATPOWER-L@cornell.edu>" <MATPOWER-L@cornell.edu<mailto:MATPOWER-L@cornell.edu>> Subject: PF Not converging Hi, I am trying to run a PF on a 154 bus system using Matpower and I am unable to get it converged. What I have tried so far is: 1. Increasing all the loads 2. Removing all generators and using only slack bus 3. then changing slack bus 4. trying different algorithms. Only in the algorithm of Newton Raphson I get a warning which says: Warning: Matrix is singular to working precision. > In newtonpf at 89 In runpf at 205 Kindly let me know, what should be my next course of action? Kind Regards, Waqas
