As I said before, there can be different ways of formulating and choosing
the variables for an OPF. FERC has released a series of papers on OPF that
may interest you.
http://www.ferc.gov/industries/electric/indus-act/market-planning/opf-paper
s.asp#p1
Thanks for the blessings :-)
Shri
-----Original Message-----
From: "Bai, Wenlei" <wenlei_...@baylor.edu>
Reply-To: MATPOWER discussion forum <matpowe...@list.cornell.edu>
Date: Fri, 29 Aug 2014 16:20:05 +0000
To: MATPOWER discussion forum <matpowe...@list.cornell.edu>
Subject: RE: control variables of 'runopf'
>Thank you Shri!
>so Matpower opf consider all bus voltage and all generator Q as control
>variables? Why is that?
>As far as I know only voltage of PV bus should be control variables and
>reactive power Q of generators shouldn't be control variables either.
>
>Blessings,
>Wenlei Bai
>Electrical Engineering, Department of Electrical & Computer Engineering
>Baylor University, One Bear Place #97356
>Waco, TX 76798-7356
>(254)405-3320
>wenlei_...@baylor.edu
>
>
>________________________________________
>From: bounce-117801146-71172...@list.cornell.edu
>[bounce-117801146-71172...@list.cornell.edu] on behalf of Abhyankar,
>Shrirang G. [abhy...@mcs.anl.gov]
>Sent: Friday, August 29, 2014 9:19
>To: MATPOWER discussion forum
>Subject: Re: control variables of 'runopf'
>
>Please read section 6.3 of the manual 'Extended OPF formulation'.
>
>Shri
>
>From: "Bai, Wenlei" <wenlei_...@baylor.edu>
>Reply-To: MATPOWER discussion forum <matpowe...@list.cornell.edu>
>Date: Fri, 29 Aug 2014 03:09:56 +0000
>To: MATPOWER discussion forum <matpowe...@list.cornell.edu>,
>"MATPOWER-L@cornell.edu" <MATPOWER-L@cornell.edu>
>Subject: RE: control variables of 'runopf'
>
>
>>And I also want to ask how to modify control variables when running opf
>>as user's need?
>>Thank you for your help
>>
>>Wenlei Bai
>>Electrical Engineering, Department of Electrical & Computer Engineering
>>Baylor University, One Bear Place #97356
>>Waco, TX 76798-7356
>>(254)405-3320
>>wenlei_...@baylor.edu
>>
>>
>>
>>________________________________________
>>From: bounce-117798135-71172...@list.cornell.edu
>>[bounce-117798135-71172...@list.cornell.edu] on behalf of Bai, Wenlei
>>[wenlei_...@baylor.edu]
>>Sent: Thursday, August 28, 2014 13:46
>>To: MATPOWER-L@cornell.edu
>>Subject: control variables of 'runopf'
>>
>>
>>Hi, I try to understand the control variables in 'runopf'
>>when I execute results = runopf('case_ieee30'), the system has 6
>>generators, 2 Shunts, and 4 transformers.
>>According to user manual, "resutls.x" are all the optimization variables
>>(total 72), including Pg (6), Qg(6), Va(30), Vm(30), however voltage
>>angles, and slack bus are not supposed to be control variables, and some
>>additional variables, e.g. Shunts and transformers
>> should be considered as control variables.
>>Question: how to interpret the control variables (72 total) that
>>Matpower shows to me?
>>
>>
>>Wenlei Bai
>>Electrical Engineering, Department of Electrical & Computer Engineering
>>Baylor University, One Bear Place #97356
>>Waco, TX 76798-7356
>>(254)405-3320
>>wenlei_...@baylor.edu
>
>
>
>
>
