1. Some might consider 30,000 buses to be large. Certainly systems of this size are solved in industry. It depends on the level of the modeling, but I've seen models of the U.S. Eastern Interconnect that are on the order of 60,000 buses.
2. Of course, and the requirement depends on the application. 3. It depends on the system, PF vs. OPF, AC vs DC model, the solver, etc., etc. The range of run-times can vary over several orders of magnitude. -- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Jun 2, 2013, at 7:34 PM, Yi Liang <[email protected]> wrote: > Dear all, > > I am wondering if the performance of current power flow analysis tool is good > enough in terms of speed. > 1, What is the size of a power system that is large in reality? 30,000 bus > -system? > What is the size of the United States power system? > > 2, In the real industrial world, is there any requirements for the speed? > what is it? > > 3, If we use MATPOWER to solve the power flow analysis problems and the OPF > problems, how long will it take? I don't have that kind of test cases in > hand, so I cannot test them. Can anyone theoretically estimate the time > complexity? As far as I know, it depends on the iterations it takes for > newton's method( for example, if we use newton's method) > > > Thank you! > > Best Regards, > Yi
