Dear Prof. Zimmerman Thanks a lot for your useful guidance.
For example, in the attached file for a simple case study with 2 loads and
generators I want to have a power factor 0.95. I have problem with adjusting
power factor in MATPOWER. How can I do it in the attached file? Also I don't
know why I have voltage constraint 1.5 pu. I think because of these
constraints I have a little bit difference in the value of lambda
I have done runmarket with the following offers and bids.
Could you please tell me why?
+++++++++++++++++++++
mpc0 = loadcase('case4gs1');
mpc = load2disp(mpc0);
mkt.OPF = 'AC';
offers.P.qty = [100;70];
offers.P.prc = [50;100];
bids.P.qty = [50 ;70 ];
bids.P.prc = [150 ;130 ];
[r, co, cb] = runmarket(mpc, offers, bids, mkt);
co.P.qty
co.P.prc
cb.P.qty
cb.P.prc
++++++++++++++++++++++++
Best Wishes
C. Gonzalez Almeida
On Wed, Mar 9, 2011 at 19:47, Ray Zimmerman <[email protected]> wrote:
> Carlos,
>
> I'm not sure what you mean by "test the example ... regarding zero power
> factor". If you are going to change some of the existing dispatchable loads
> to have a zero power factor, then the existing market structure for the
> example, which includes only $/MW bids for active power, will not be
> applicable. So you need to decide how you want to handle these reactive-only
> loads. I suppose you'll need to specify reactive power bids for them.
>
> On your second question, the offers and bids are used to construct a
> gencost matrix with negative costs for the negative generators that
> represent dispatchable loads. The objective function is then to minimize
> this "cost" of generation, which is computed in opf_costfcn.m. You are
> correct that this is equivalent to maximizing social welfare.
>
> --
> Ray Zimmerman
> Senior Research Associate
> 211 Warren Hall, Cornell University, Ithaca, NY 14853
> phone: (607) 255-9645
>
>
>
> On Mar 8, 2011, at 5:04 PM, Carlos Gonzalez Almeida wrote:
>
> Dear Dr. Zimmerman
>
> -Could you please test the example provided in the manual (t_auction_case)
> regarding zero power factor. What changes should be carried out?
>
> -Moreover, as you know, the objective function obtained in the runmarket is
> Social welfare. Could you please address me the file that you calculated
> objective function because I couldn't find it. I want to know in which file
> (the m file) you have calculated that?
>
> Best Regards
>
> Carlos
>
>
>
> On Tue, Mar 8, 2011 at 22:34, Ray Zimmerman <[email protected]> wrote:
>
>> I'm not really sure without seeing the details of your example. I'm not
>> sure I've ever tested the runmarket code with pure reactive power loads.
>> It would require reactive power bids for those loads, but I'll need the
>> details to be able to help you further.
>>
>> --
>> Ray Zimmerman
>> Senior Research Associate
>> 211 Warren Hall, Cornell University, Ithaca, NY 14853
>> phone: (607) 255-9645
>>
>>
>>
>> On Mar 7, 2011, at 10:42 AM, Carlos Gonzalez Almeida wrote:
>>
>> Hi
>>
>> I am new in MATPOWER abd I want to have zero power factor for example in
>> example case of manual in runmarket, but several error are occured. please
>> tell me why
>>
>>
>> Best Wishes
>>
>> C. Gonzalez Almeida
>>
>>
>>
>
>
> Best Wishes
>
> C. Gonzalez Almeida
>
>
>
case4gs1.m
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