Re: Question about power flow for a system with faulted bus

2019-06-01 Thread Ismael K Abdulrahman
Thanks Shri for your reply and the nice trick you mentioned; I never thought about it. How about using continuation power flow instead of a regular power flow? Is it possible to use it for this kind of problem? As you know, CPF is widely used to solve low voltage problem. Any idea? Thank you

Re: Question about power flow for a system with faulted bus

2019-06-01 Thread Abhyankar, Shrirang G
Ismael, Power flow with loads modeled as “constant power” faces convergence issue when the voltages are low. A common trick is to convert constant power loads to constant impedance loads for low voltages. In MATPOWER, you can convert all the loads to constant impedance using the options

Question about power flow for a system with faulted bus

2019-06-01 Thread Ismael K Abdulrahman
Dear Matpower community, I am a Ph.D. student working in power system dynamic analysis. I use Matpower for computing the initial values of the system variables. I want to find the initial values of the algebraic variables (voltage magnitude, voltage angle, generator current phasors...) at