Thank you. I agree with you both, and in fact, I changed the data based on the gencost matrix. But I have two more questions: 1) what are the units of this parameters? such like $/MW or M$/MW for b ? because I also want to know the cost of Var devices and moreover, I need to put these in my research, so I think I need to make sure these parameters are compatible. 2)I want to double check with you: when using f=a*P^2+b*P+c, the P values are norminal value or p.u.? I used norminal value.
Thanks. On Mon, May 24, 2010 at 10:46 PM, Ray Zimmerman <[email protected]> wrote: > I would just caution you that, just because you find a case file with a > particular set of cost coefficients does not mean that those cost > coefficients are in any sense "typical" generator costs. In many cases, they > are more likely some random numbers that someone typed in so they could run > an OPF. > > -- > Ray Zimmerman > Senior Research Associate > 211 Warren Hall, Cornell University, Ithaca, NY 14853 > phone: (607) 255-9645 > > > > On May 24, 2010, at 8:38 PM, m d wrote: > > Hello, > I have just got familiar with Matpower too but as much as I know in every > casedata there is a part namely: generator cost data that you can find the > relevant cost coefficients. > for example type: open case9 > then in case9.m file at the end of the page in the generator cost data > there is a matrix: mpc.gencost with > 7 columns...the last three columns are the coefficients that you need. > should you need more details, just simply type : 'help caseformat ' and you > will find good information. > hope it helps > > > ------------------------------ > *From:* 王玉荣 <[email protected]> > *To:* [email protected] > *Sent:* Sun, May 23, 2010 2:50:53 PM > *Subject:* some coefficients > > Hi All, > > I am doing optimal research recently, and I badly need some coefficients > related to the generation cost and some VAr devices cost. > > Specifically, > the generation cost is like this: f=a*P^2+b*P+c, where the P is the active > power output. The coefficients are a,b,c. > For the Var devices cost, I hope the cost is composed by > f=C_fix+C_variable*Qc, where Qc is the output reative power of the Var > device. And the coefficients are C_fix and C_variable. > > Does anybody have some reference data please? Thank you so much. > > Regards, > Yurong > > -- > 王玉荣 (Yurong WANG) > Dept. of EECS, the University of Tennessee > Knoxville, TN37996, USA > > School of Electrical Engineering > Southeast University, Nanjing, China 210096 > > We Will Progress. > > > > -- 王玉荣 (Yurong WANG) Dept. of EECS, the University of Tennessee Knoxville, TN37996, USA School of Electrical Engineering Southeast University, Nanjing, China 210096 We Will Progress.
