The two approaches are equivalent with one exception. The dispatchable load will include a constant power factor constraint that forces the reactive power to be curtailed along with the real power. This is probably more realistic for load curtailment in an AC network. If you are using a DC power flow model, there is essentially no difference in the problem being solved.
-- Ray Zimmerman Senior Research Associate 419A Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Apr 29, 2013, at 6:40 AM, Jiashen Teh <[email protected]> wrote: > > > > Yours sincerely, > > Jiashen Teh > PhD Student > Electrical Energy & Power Systems Group, School of Electrical & Electronic > Engineering > Ferranti Building (B18), The University of Manchester, M13 9PL, United Kingdom > Tel: +44 (0) 161 306 2263; Mobile: +44 (0) 792 322 4864 > From: Jiashen Teh > Sent: 29 April 2013 10:48 > To: MATPOWER discussion forum > Subject: > > Dear Dr Ray, > > I am running ACOPF. > > In order to record the load not not supply, is it better that I make the load > dispatchable or I add in very expensive generator at load bus and record the > energy generated by the expensive generator? > > Thanks in advance > > Yours sincerely, > > Jiashen Teh >
