Hey all, I'm using Matpower 4.0 and a smart market function to carry out a cost based analysis of network constraints, given various bids and offer prices.
Specifically, i'm using the off2case function and then running a DCOPF using MIPS on a heavily constrained network throughout the year. My question relates to how these two functions (off2case and the DCOPF) appear to handle supply shortfall. During periods of high demand, the total demand is around 57GW and the output off all contributing generators (from the DCOPF) is around 47GW. A small dispatchable load, which is not signifcant enough to meet the supply shortfall, is included in the smart market at a very high price as I want to model constrained-on and constrained-off generation only. The DCOPF converges and an output is generated despite there being a sizeable shortfall. Reffering to the manual, it appears that a method exists to handle supply shortfall, which involves emergency imports; where an import is modelled as a fixed injection together with an equally sized dispatchable load. Does this method exist in these two functions (i.e. off2case and the DCOPF)? and if so, where in the code is this performed? Also, where are these imports placed on the network (the reference bus amongst others?) and how is the descision made to ensure that the constraints of the DCOPF are met? I've looked into the code of both functions and I can't seem to find this procedure, and yet the DCOPF converges, so this process (or an alternative) must exist somewhere. Kind Regards Malcolm P.S. many thanks for MATPOWER, it's a very useful package and one which I have used alot throughout my research.
