Dear All,
Thank you for the responses. You have been a big help to me .I managed to
add generators to other buses in case14 by adding a generator to bus 4 (row
6) as Dr Zimmerman suggested:
*
*
*define_constants;*
*mpc = loadcase('case14');*
*size(mpc.gen, 1); %gives the last row of generator data*
*ng = size(mpc.gen, 1) + 1; %Specifies the start point *
*mpc.gen(ng, GEN_BUS:PMIN) = [4 0 0 10 -10 1.01 100 1 20 0]; %add 0MW to
bus 4*
Now if I want to increase its real power demand at bus 4 to 10 MW I add
scripts as follows:
*
*
*mpc.gen (6,PG) = 10; %add 10MW to bus 4*
*mpc.bus (6,BUS_TYPE) = 2; %changes the type of bus 6 to PV*
*runpf(mpc)*
*But unfortunately* again I receive error which I don’t know why???
??? Error using ==> subsref
Index exceeds matrix dimensions.
Error in ==> get_reorder at 50
B = subsref(A, s);
Do you have any ideas?
I am so greatful of your guidance and suggestions
Regards
Iman
===================================================================
On Thu, Nov 17, 2011 at 3:35 PM, Álvaro Jaramillo Duque <
[email protected]> wrote:
> Hello
>
> I think the error is due because there wasn't a generator at bus 7 and you
> didn't add all the information concerning a that generator.
>
> Look in the manual, Appendix B Data File Format, or just open the case in
> a editor text and see what is required for a generator, this is the best
> way to understand the MATPOWER file format.
>
>
> I think you mistook the "id" of the node with the position on the matrix
> mpc.gen
>
>
> >> define_constants;
> >> mpc = loadcase('case14');
> >> size(mpc.gen)
> ans =
>
> 5 21
>
> See that the dimension is 5 rows, 7 out of the dimension.
>
> What I am not sure if is mandatory for a PF add the mpc.gencost
> information of the new generator.
>
> The rest I think is OK, because you have to modify the node type.
>
> Best regards.
>
> Álvaro
>
--
Best regards
Iman
