Are you using the latest MATPOWER release (v5.1)? Type mpver to find out what version you have.
Ray > On Feb 12, 2016, at 4:33 PM, Fereshteh Moghateli <f.moghat...@gmail.com> > wrote: > > this command gives this error " ??? Undefined function or method 'get_losses' > for input arguments of type 'struct'." > > thank you > > On Sat, Feb 13, 2016 at 12:28 AM, Shruti Rao <sra...@asu.edu > <mailto:sra...@asu.edu>> wrote: > Hi Fereshteh, > > get_losses is an inbuilt MATPower function that computes the branch losses > and can also compute the reactive injections from line charging. It can also > compute the derivatives with respect to voltage etc. , the details can be > found in the manual in Chapter 9. > > > Shruti > > On Fri, Feb 12, 2016 at 1:52 PM, Fereshteh Moghateli <f.moghat...@gmail.com > <mailto:f.moghat...@gmail.com>> wrote: > What do you mean by (get_losses)? > thank you > > On Sat, Feb 13, 2016 at 12:05 AM, Ray Zimmerman <r...@cornell.edu > <mailto:r...@cornell.edu>> wrote: > I’m not sure what you mean by “save losses” and “50 PF iteration”. If you > mean something like record the value of total branch active power losses for > 50 different power flow runs, then you could do something like the following: > > losses = zeros(50, 1); > mpc = loadcase(<your_base_case_name>); > for k = 1:50 > <update some parameter in mpc> > r = runpf(mpc); > losses(k) = sum(get_losses(r)); > end > > Then the losses will be stored in the losses vector. > > Ray > > > >> On Feb 12, 2016, at 1:41 PM, Fereshteh Moghateli <f.moghat...@gmail.com >> <mailto:f.moghat...@gmail.com>> wrote: >> >> hi community >> how to save losses in matpower in for example 50 PF iteration? > > > > > > -- > Regards, > Shruti Dwarkanath Rao > > Graduate Research Associate, Arizona State University > Co-Vice-Chair: IEEE PES ASU Student Chapter > Tempe, AZ, 85281 > 650 996 0116 >