First, please do not hi-jack an existing thread by replying to an e-mail on a
completely different topic and leaving the subject line unchanged.
The problem is that ext2int() fails because your case file is not valid. The
number of rows in gencost does not match the number of rows in gen.
Ray
> On Apr 12, 2017, at 2:36 PM, Akash Tyagi <akashtyagi0...@gmail.com> wrote:
>
> Hello everyone,
> I am working on the continuation power flow technique.
> I have used the given 30 bus data for the continuation power flow and i have
> increased all the loads by a factor of 5, which results in the decreased in
> the voltage magnitude and the lowest voltage is found to be at bus 8.
> Now after this i want to place Static Var Compensator at bus 8 i.e. i want to
> increase the reactive power generation at bus 8 by placing the SVC to improve
> the voltage magnitudes, and making the status of the generatoe ON.
> I have tried the following code, but it is not giving results,
>
> clc
> clear
> close all;
> define_constants;
> mpopt=mpoption('out.all',-1,'verbose',2);
> mpopt=mpoption(mpopt,'cpf.stop_at','NOSE','cpf.step',0.2);
> mpopt=mpoption(mpopt,'cpf.plot.level',2);
> mpcb=loadcase(case30aaa);
> mpct=mpcb;
> mpct.bus(:,[PD,QD])=mpcb.bus(:,[PD,QD])*5; % increasing the load by 5
> mpct.gen(8,QG)=mpcb.gen(8,QG)+10;
> mpcb.gen(8,GEN_STATUS)=1;
> runopf(mpcb)
> [results,success]=runcpf(mpcb,mpct,mpopt);
>
> Below i have attached the following case for which i am doing all this..
>
>
>
>
> On Mon, Apr 10, 2017 at 9:47 PM, Ray Zimmerman <r...@cornell.edu
> <mailto:r...@cornell.edu>> wrote:
> This is a solver issue. See footnote 5 on page 10 of the MOST User’s Manual
> <http://www.pserc.cornell.edu/matpower/docs/MOST-manual-1.0.pdf>. For MIQP
> problems, that is, unit commitment problems with quadratic generator costs
> and/or ramping wear and tear costs, you will need Gurobi, CPLEX or MOSEK. I
> recommend Gurobi.
>
> Ray
>
>
>> On Apr 3, 2017, at 3:52 PM, Stephen Suffian <ssuff...@villanova.edu
>> <mailto:ssuff...@villanova.edu>> wrote:
>>
>> Hello all,
>>
>> I have been able to succesfully run MOST for several days, but I recently
>> came across a problem when attempting to load cost data into mpc.gencost. I
>> My original gencost was below:
>>
>> mpc.gencost = [
>> 2 0 0 2 200 0;
>> 2 0 0 2 300 0;
>> 2 0 0 2 500 0;
>> 2 0 0 2 1000 0;
>> ];
>>
>> When I changed it to quadratic, it works as long as the first term is 0.
>>
>> mpc.gencost = [
>> 2 0 0 3 0 200 0;
>> 2 0 0 3 0 300 0;
>> 2 0 0 3 0 500 0;
>> 2 0 0 3 0 1000 0;
>> ];
>>
>> However, when I change the first term to a non-zero value:
>>
>> mpc.gencost = [
>> 2 0 0 3 0.004 200 0;
>> 2 0 0 3 0 300 0;
>> 2 0 0 3 0 500 0;
>> 2 0 0 3 0 1000 0;
>> ];
>>
>> I get the following error.
>>
>> error: mpopt2qpopt: Sorry, no solver available for MIQP models
>> error: called from
>> mpopt2qpopt at line 92 column 13
>> most at line 2065 column 14
>> test at line 41 column 5
>>
>> I am using the glpk solver. Does anyone know if this is a solver issue, a
>> human error (on my part) issue, or otherwise?
>>
>> Thanks!
>> Stephen Suffian
>
>
> <case30aaa.m>
