That’s basically true. To be more specific, RAMP_10 is used to determine the amount that a contingency dispatch can deviate from the corresponding base case, or to limit the reserve supplied by a unit when using fixed zonal reserve requirements. And RAMP_30 is used to determine how much a base case dispatch in a particular period can deviate from the base case dispatches in adjacent periods. And RAMP_AGC is not currently used for anything.
In MOST there are essentially two types of “reserve”: (1) contingency reserve, and (2) load-following ramp reserve. The contingency reserve, limited by RAMP_10, can be handled in one of two ways, either by specifying fixed zonal reserve requirements (in a deterministic problem) or by specifying explicit contingencies that must be covered (in a stochastic problem). This is discussed in Section 3.2 of the MOST User’s Manual <http://www.pserc.cornell.edu/matpower/docs/MOST-manual-1.0.pdf> and defined by equations (4.16)–(4.22). The load-following ramp reserve, limited by RAMP_30, is described in Section 3.5 and defined by equations (4.23)–(4.27). Hope this helps, Ray > On Mar 8, 2018, at 7:29 PM, Stephen Suffian <stephen.suff...@gmail.com> wrote: > > I believe I've seen a similar question asked before. See this link > <https://www.mail-archive.com/matpower-l@cornell.edu/msg05398.html> which > indicates that RAMP_10 is used for reserve calculations, RAMP_30 for dispatch > scheduling, and RAMP_AGC Is not currently used by matpower according to this > link <https://www.mail-archive.com/matpower-l@cornell.edu/msg06231.html>. > > On Thu, Mar 8, 2018 at 6:51 PM, Bainan Xia <b...@intven.com > <mailto:b...@intven.com>> wrote: > Hi, > > > > I’m running a huge power system simulation using MOST recently. I’ve got some > information on ‘ramp rate (% of the rated capacity per min)’ for each type of > generator from a paper. I would like to add these constraints into my case. > I’ve found a field in mpc.gen, called ‘RAMP_AGC’, which is ramp rate for load > following/AGC (MW/min). I’m wondering whether that is the right place to > fill. Or the following columns ‘RAMP_10’ and ‘RAMP_30’ are the right choices. > I’m also a little confused on the difference between ‘RAMP_10’ and ‘RAMP_30’. > What does the word ‘reserve’ mean in the documentation. > > > > Thanks for the help J > > > > Best, > > Bainan > >
