Thank you, I appreciate your help. On Thu, Nov 7, 2013 at 12:55 AM, Yang, Yongtao <[email protected]> wrote: > Hi, > > To me it shows that Matpower tries to initiate the voltage of generator bus > with the magnitude from gen(on, VG) and the phase angle from the bus voltage > phasor V0(gbus). This makes good sense when the V0 vector is initiated from a > known solution. > > HTH > > Yongtao > > On 7. nov. 2013, at 06:27, "Vincent Roberge" <[email protected]> wrote: > >> Good day all, >> >> I am a student and I am trying to fully understand the N-R method for >> power flow analysis. I wrote a C program that does it and I compare my >> output to the one generated by MATPOWER. Everything matches until I >> try case2736sp. In this case, the generator setpoint voltage and the >> initial guess for the bus voltage associated to the generator do not >> match. Instead of forcing the voltage of the bus to the generator >> setpoint, MATPOWER uses some sort of a ratio which I don't undestand >> at all. This all occurs in the file "runpf.m" at line 201: >> >> V0(gbus) = gen(on, VG) ./ abs(V0(gbus)).* V0(gbus); >> >> How does this work? There must be something I don't understand about >> generator setpoint. What is generator setpoint? Anyone willing to help >> and explain me that line of code. Thanks in advance. >> >> >> -- >> Vincent >> >> >> > > >
-- Vincent
