Hello, I've been working on IEEE 123 nodes system and created a model for MatPower power flow. This model is basically a radial distribution system with a single generation at substation and works fine when I can use runpf(), and it returns similar result as shown IEEE 123 node system report. However, when I use the same model for runopf(), it shows
Numerically Failed Did not converge in 4 iterations. Did not converge (0.10 seconds) The total generation is very different from total demand, and bus voltages are at strange values (e.g. 1.836p.u. at reference bus). Also, generation cost Lambda are extremely high (e.g. 17528752586.76 $/MWh @ bus 6). I have tried to add multiple DGs at different locations and change the system to a ring type system, but it didn't work out. Does anyone have any suggestions or experiences to this problem? Your help is highly appreciated! Have a good day!* Fanjun Meng *
