Dear Mohamed
'case33bw' has some tie lines that you have to delete or comment in
order to solve this case using 'radial_pf'.
The tie lines (that you have to comment ) are :
% 21 8 2.0000 2.0000 0 0 0 0 0 0 0
-360 360;
% 9 15 2.0000 2.0000 0 0 0 0 0 0 0
-360 360;
% 12 22 2.0000 2.0000 0 0 0 0 0 0 0
-360 360;
% 18 33 0.5000 0.5000 0 0 0 0 0 0 0
-360 360;
% 25 29 0.5000 0.5000 0 0 0 0 0 0 0
-360 360;
Regards
Houssem
On 06/03/2017 9:03 AM, Sk. Md. Golam Mostafa wrote:
Dear Ray Zimmerman,
Thank you so much sir. I downloaded the zip file from
https://github.com/MATPOWER/matpower/
<https://github.com/MATPOWER/matpower/> and installed by followng
README instructions and it was successfully verified with
*test_matpower*instruction. After that I used radial_pf(mpc,mpopt)that
gave results for *case 18*, and *case 22*but when I used case33bw it
shows errors saying: Error using radial_pf (line 34)
radial_pf: power flow algorithm PQSUM can only handle radial networks.
Another thing sir, I look for *"Radial Power Flow"* section at *4.1.1
in Matpower Manual*. May be it still not included. I used the
following command for case33bw:
>> mpopt=mpoption('pf.alg','PQSUM','pf.tol',1e-4,'out.all',
0,'verbose',0);
>> mpc=loadcase(case33bw);
>> results=radial_pf(mpc,mpopt);
>> sum(real(get_losses(results)))
I also tried with "ISUM", "YSUM" but saying the same thing as:
Error using radial_pf (line 34)
radial_pf: power flow algorithm PQSUM can only handle radial networks.
Please sir, Guide me. Thanks in advance for both of you.
Sincerely Yours
Sk. Md. Golam Mostafa
M.Eng. in EPSM, AIT
On Sat, Mar 4, 2017 at 5:24 AM, Ray Zimmerman <[email protected]
<mailto:[email protected]>> wrote:
Did you install the latest development version from GitHub? It’s
not available yet as a versioned release from the MATPOWER home
page, only from GitHub. Please follow the Installation
instructions in the README at
https://github.com/MATPOWER/matpower/
<https://github.com/MATPOWER/matpower/>
Ray
> On Mar 3, 2017, at 12:17 AM, Akash Tyagi
<[email protected] <mailto:[email protected]>> wrote:
>
> I also don't find the forward/backward sweep based power flow
method​ for radial distribution system?
