Re: constant power factor ?

[Ray Zimmerman]

That looks correct for 'opf', but without details of how it failed I can't guess what the problem might be. Regarding 'uopf', the version in MATPOWER 3.2 does not include the ability to pass in the user defined linear constraints and costs. I've attached a version of uopf.m that does. This feature will be included in the next release. --  Ray Zimmerman Senior Research Associate 428-B Phillips Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645

uopf.m
Description: Binary data

On Mar 2, 2008, at 9:46 PM, oyw sjt wrote: Hi,   I have a question about Matpower 3.2.   When using 'uopf' , can power factor of certain generators remain constant, for example ,  power factor is set to 0.85 ?   I added a linear constraint (A,l,u)  to 'opf', but failed. The linear constraint is :   l<=Ax<=u Ax=Pg - 0.61*Qg,  l=0, u=0.    (because  tan(arc(cos0.85))=0.61 )   Could you give me an answer ? Thanks very much. Your sincerely,                           W. Yang 雅虎邮箱传递新年祝福，个性贺卡送亲朋！