I’m not sure why you say MATPOWER uses box constraints on the line flows. By default, for the AC OPF, MATPOWER uses the same constraint as the one J Carpenter presents. There is also the option to constrain active power flow or current magnitude.
-- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Apr 15, 2014, at 9:15 PM, Aftognosia Aftognosia <[email protected]> wrote: > Dear Dr Zimmerman, > > Matpower uses box constraints on line flows when performing OPF. > J Carpenter in his formulation, explicitly presented the constraints as P^2 + > Q^2 <= S^2. > Thus, is the formulation with box constraints used in any formal literature > paper ? > (eg is it categorized as a separate form of ACOPF formulations )? > > Thank you > On Monday, April 14, 2014 2:41 PM, Ray Zimmerman <[email protected]> wrote: > Simply change the corresponding value in the case file. See Appendix B in the > User’s Manual for details on the input file format. > > -- > Ray Zimmerman > Senior Research Associate > B30 Warren Hall, Cornell University, Ithaca, NY 14853 > phone: (607) 255-9645 > > > > On Apr 12, 2014, at 1:21 PM, Mahmoud Abdallah > <[email protected]> wrote: > >> dear sir >> I use matpower 3.2 >> >> I use runpf on case 39 and I wish to limit power generated at bus 39 to >> certain value how can I do that ? >> >> first guess for power generated from generator at bus 39 = 1000 MW >> I wish to make it generate only 500 MW >> >> thank you in advance >> Eng. Mahmoud abdallah >> Teaching Assistant >> Ain Shams University >> Faculty of Engineering > > >
