Hi Carlos,
Thank you. That makes sense. Based on that, I would expect to be able to set the bus voltage, Vm, and it stick, but it doesn’t. If I set Vm=2 and run the load flow it solves properly with the resulting bus voltage being 1.154pu. So, in essence, I am specifying the magnitude for the slack bus in the “mpc.gen Vg” setting, and then I am specifying the angle for the slack bus in the “mpc.bus Va” setting. You would expect both mag and angle to be specified in the same place. This is counterintuitive, which is why I ask if this level of detail about how input is used/overridden is documented anywhere – or if it will just be a learn-by-trying approach. Either way, I’m very happy to have found this fantastic software. Thank you for your help. Best regards, Russ From: [email protected] [mailto:[email protected]] On Behalf Of Carlos E Murillo-Sanchez Sent: Wednesday, December 9, 2020 4:11 PM To: MATPOWER discussion forum Subject: Re: infinite bus, 1 branch/1 gen Carlos wrote: Dear Russ: Bus #1 is designated as the slack bus (and hence, also for angular reference). Thus, for this particular bus alone, the angle is assumed known and taken from the respective column in the bus table. This is a standard power flow assumption.
