The base case (with PD = QD = PG = 0) is not converging because some of the generators have high Qmin limits. You’ll also need to relax the generator Qmin limits for your base case.
Thanks, Shri Ph: (630) 252 0219 www.mcs.anl.gov/~abhyshr<http://www.mcs.anl.gov/~abhyshr> From: <bounce-122159463-73493...@list.cornell.edu> on behalf of Young-Hwan Lee <le...@umbc.edu> Reply-To: MATPOWER discussion forum <matpowe...@list.cornell.edu> Date: Thursday, December 28, 2017 at 10:13 AM To: "MATPOWER-L@cornell.edu" <MATPOWER-L@cornell.edu> Subject: Question about the continuation power flow To whom it may concern, I'm trying to solve an easy problem with case39 using the continuation power flow. I set the base case as origin, which is PG, PD, QD are all zero. I do not change any values for the target case, which means I just use the initial values. In addition, I set the reactive power limit using the option "cpf.enforce_q_lims." However, it didn't work and I got the message "CPF TERMINATION: Base case power flow did not converge." If I don't set the reactive power limit, the continuation power flow can solve this problem. If I change the base case as more than 0.7 times initial values, it worked. Could you explain why the continuation power flow cannot converge when setting the reactive power limit with origin base case, please? Thank you in advance. Regards, Young-hwan Lee
