Dear Dr. Zimmerman, If I run optimal power flow using runopf(), is it possible to give another optimization parameter on top of that?
I want generation from one generator to be minimized minimizing overall system cost. This generator should be included in opf only if runopf cannot converge to a solution. This is one of the cheapest generator in the system. So unit commitment starts with dispatching this generator first. What is the best way to achieve this ? Thank you once again for all help and support . Thanks, Nandu Balachandran The University of New Orleans From: [email protected] [mailto:[email protected]] On Behalf Of Ray Zimmerman Sent: Monday, June 29, 2015 9:55 AM To: MATPOWER discussion forum Subject: Re: Unit Commitment The order of decommitment is not something that is saved in results anywhere, but it is displayed in the verbose output if you set verbose to 2 or higher. Ray On Jun 28, 2015, at 1:10 AM, Nandu Balachandran <[email protected]<mailto:[email protected]>> wrote: After executing runupf function, is it possible to get the order at which generators are committed? ( Usually least expensive first ; It depends may vary with total load and quadratic cost function). Is there any function which gives me the order of unit decommitment? Thanks, Nandu See Table 6-1 in the User’s Manual<http://www.pserc.cornell.edu/matpower/docs/MATPOWER-manual-5.1.pdf> for results of the OPF, including LAM_P which is the LMP and see Section 4.4 for a description of MATPOWER’s functions for computing shift factors. Ray On Jun 16, 2015, at 4:14 AM, lavanya arubolu <[email protected]<mailto:[email protected]>> wrote: Dear Nandu Balachandran, There is inbuilt function in MATPOWER to know the LMPs at all the buses. If you want to calculate LMPs for a particular system run OPF and see the results, in OPF results one function called Lamada this indicates LMPs at all the buses. I think direct calculation of GSF is not possible using MATPOWER we have to write code for this. I hope this will clarify your doubt. Thank you On Tue, Jun 16, 2015 at 11:14 AM, Nandu Balachandran <[email protected]<mailto:[email protected]>> wrote: Dear Dr. Zimmerman, Does MATPOWER has some inbuilt function for calculating LMP at each node? Is there a way to calculate Generator Shift Factor after calculating OPF solution using "runopf ( )" ? Thanks and appreciate your help - Thanks, Nandu Balachandran The University of New Orleans [email protected]<mailto:[email protected]> Ph No: +1 (504) 505-1087
