Voltage magnitudes are assumed to be 1 p.u., whereas the slack bus (type = 3) in the case file is chosen as the reference. Hence, the angle at the slack bus is then also taken as 0. Hope it helps.
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Stefanie Aebi Sent: Tuesday, 1 May, 2018 2:13 PM To: [email protected] Subject: DC OPF reference voltage Hi I wonder how DC OPF is handled. Since in the linearization only differences in voltages appear, is there a reference voltage set? And how is that reference voltage chosen? Thanks!
