On Feb 8, 2012, at 6:30 AM, Carlos Gonzalez Almeida wrote: > I have some questions about reactive power as considered as optimization > variable: > > - How the reactive power is controlled in MATPOWER and how it is considered > in objective function?
See section 5, especially 5.1, for the OPF formulation that shows exactly how reactive power enters the optimization problem. Practically, if you want to put costs on Qg, you add another ng rows to the gencost matrix (see first footnote on Table B-4 on gencost). > - What is the general regulatory context for reactive power bidding in an > open market (I use runmarket of MATPOWER)? does it contribute to ancillary > services? I'm not sure I understand the question. MATPOWER includes (in runmarket) the ability to include reactive power offers which are treated in a similar way to active power offers, though the two markets are coupled through the network [1]. For a number of reasons [2], I do not believe that it makes sense to handle reactive power in this kind of market in real-world applications. -- Ray Zimmerman Senior Research Associate 419A Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 [1] See TN1 at http://www.pserc.cornell.edu/matpower/#docs for a discussion of coupled auctions. [2] See http://e3rg.pserc.cornell.edu/node/100 for more info.
