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
