sir i am a btech student. i was workin on voltage indices calculation for branches or lines. there i needed a data called reactive power at the recieving end, is it QT. i solved for reactive power at recieving end by mathematical equations i.e. current =(sending end volt - recieving end volt)/ impedance and then multiplied current by the recieving end voltage. separated real and imaginary parts. but it was different from QT. thank you sir.
On 09/05/2012, Hanie Sedghi <[email protected]> wrote: > I am not sure if I needed a permission to write in that location. But I did > change the location from partition D to somewhere in my windows drive and > the problem was solved. > > Thank you so much for your help. > > Hanie > > On Tue, May 8, 2012 at 7:22 AM, Ray Zimmerman <[email protected]> wrote: > >> Do you have write permissions on the directory you are running this from? >> That particular test temporarily writes a file and it appears there is an >> error when trying to save that file (though the error message is a bit >> mysterious ... can't create a new file because the file doesn't exist?) >> >> -- >> Ray Zimmerman >> Senior Research Associate >> 419A Warren Hall, Cornell University, Ithaca, NY 14853 >> phone: (607) 255-9645 >> >> >> >> >> On May 7, 2012, at 9:28 PM, Hanie Sedghi wrote: >> >> Hello, >> >> I have just installed MATPOWER by following step 1-3 from the manual. but >> when in step 4, I write >> test_matpower >> I face the following errors: >> >> t_loadcase..........Error using save >> Cannot create 't_mat9_opf.mat' because 't_mat9_opf.mat' does not exist. >> >> Error in t_loadcase (line 59) >> eval(['save ' matfile '.mat baseMVA bus gen branch areas gencost']); >> >> Error in t_run_tests (line 79) >> feval( test_names{k}, ~verbose ); >> >> Error in test_matpower (line 135) >> t_run_tests( tests, verbose ); >> >> Actually, I did look into the file I have downloaded and I could not see >> any files named t_mat9_opf.mat. >> I am using a MATLAB R2011b on a 64bit windows 7. >> I would truly appreciate if you could help me with this. >> >> Best Regards, >> Hanie >> >> >> >
