Dear Dr Zimmerman, Thank you very much for your helpful advice. I created the gen_profile and load_profile matrices in the workspace with file name gen_profile and load_profile respectively. Next I follow the code sript as given and the power flow simulation converged. I noticed that in the command window, there were a lot of power flow data (probably 52 sets). At which part can I get the total loss (for 52 weeks) result? Is it necessary to include the files for gen_profile and load_profile into the mpc struct of the eg case24_ieee_rts? Again thank you very much for your kind assistance.
________________________________ From: Ray Zimmerman <[email protected]> To: MATPOWER discussion forum <[email protected]> Sent: Thursday, March 22, 2012 8:39 PM Subject: Re: Generator Input Here's what I would do. Create a matrix gen_profile with the generator output values, where each row corresponds to a generator and each column to a week of the year. You could set up another matrix load_profile with the nodal loads in it, then do something like the following ... define_constants; mpc = loadcase('mybasecase'); for k = 1:52 mpc.bus(:, PD) = load_profile(:, k); mpc.gen(:, PG) = gen_profile(:, k); r = runpf(mpc); loss(k) = sum(mpc.gen(:, PG)) - sum(mpc.bus(:, PD)); end total_loss = sum(loss); Hope this helps, -- Ray Zimmerman Senior Research Associate 419A Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Mar 22, 2012, at 4:24 AM, Ruhaizad Ishak wrote: Dear All, > >First of all please forgive if the question that I wanted to ask here sounds >repetitive. I am new in this community. > >I had browsed through the archive but couldn't find any similar topic or >otherwise I may missed it. > >Although found one closely related on how to add generator but mine is a >liitle bit different. > >Using the existing generators (same number of generators) how can I change >the output of each generator? > >So far I tried the same method for changing load power demand but it doesn't >work. > >Apart from changing the output, I also plan to set an output profile for each >generator for certain time frame (such as 52 weeks.) > >For example: >Generator 1 >Week 1: 20 MW >Week 2: 40 MW >Week 3: 25 MW > >Generator 2 >Week 1: 10 MW >Week 2: 25 MW >Week 3: 13 MW > >Then I would like to find the total losess for the system in MWh unit. > >Can someone guide me on this? > >I appreciate your helpful advice and comment in advance. > >Thank you. > > > >
