Re: Voltage angle for multi area coordination

2018-10-31 Thread Aamir Nawaz
bus(es) manually, or you could use the extended OPF formulation (see Sections 6.3 and 7 in the MATPOWER User’s Manual) to apply constraints or costs to voltage angles.     Ray On Oct 28, 2018, at 7:28 PM, Aamir Nawaz wrote: Dear Dr. Ray,I want to develop algorithm for multi area coordination

Re: Voltage angle for multi area coordination

2018-10-29 Thread Ray Zimmerman
ttp://www.pserc.cornell.edu/matpower/docs/MATPOWER-manual-6.0.pdf>) to apply constraints or costs to voltage angles. Ray > On Oct 28, 2018, at 7:28 PM, Aamir Nawaz wrote: > > Dear Dr. Ray, > I want to develop algorithm for multi area coordination using voltage angles > as sharing var

Voltage angle for multi area coordination

2018-10-28 Thread Aamir Nawaz
Dear Dr. Ray, I want to develop algorithm for multi area coordination using voltage angles as sharing variables in matpower pf. Kindly guide me how can i set voltage angles in matpower so opf/pf start from that point and increase or decrease angle further while following power flow constraints. I

Re: caseformat 'Area' and 'zone'

2017-07-25 Thread Ray Zimmerman
The values in area and zone are not used at all by the power flow, CPF and OPF routines. The area can be used by scale_load() to modify all loads in a given area and there are options for viewing output summaries by area. Ray > On Jul 25, 2017, at 1:35 AM, Roshani Thapa wrote: >

caseformat 'Area' and 'zone'

2017-07-24 Thread Roshani Thapa
what is the significance of 'area' and 'zone' in caseformat in matpower? where can these be used? i am trying to determine the optimal 24 hour switching schedule for 4 feeder capacitors in a distribution system using forecasted hourly daily load profile to minimise daily ene

Re: Area

2017-05-15 Thread Akash Tyagi
.html> > or apply_changes() > <http://www.pserc.cornell.edu/matpower/docs/ref/matpower6.0/apply_changes.html> > to > modify parameters on an area-wide basis. > > Ray > > > On May 15, 2017, at 9:02 AM, Ahmad Sadiq Abubakar < > ahmad.abuba...@futminna.e

Re: Area

2017-05-15 Thread Ray Zimmerman
tpower6.0/apply_changes.html> to modify parameters on an area-wide basis. Ray > On May 15, 2017, at 9:02 AM, Ahmad Sadiq Abubakar > wrote: > > I think the case30 is sectioned into areas for the purpose of identifying > buses that belongs to the same power export/import ar

Re: Area

2017-05-15 Thread Ahmad Sadiq Abubakar
I think the case30 is sectioned into areas for the purpose of identifying buses that belongs to the same power export/import area/zone. Regards Ahmad On May 15, 2017 12:43 PM, "Akash Tyagi" wrote: Hello everyone, I am working on congestion management for 30 bus system as given i

Area

2017-05-15 Thread Akash Tyagi
Hello everyone, I am working on congestion management for 30 bus system as given in MATPOWER case. I would like to know the role of AREA in the 30 bus system? At some buses, it is 1, at other busses, it is 2 and 3 also. What is the role of AREA and what is 1, 2 and 3?

Re: Run OPF with area interchange specified

2013-12-01 Thread Shri
as >> well, subject to fixed exchange schedules? If so, yes, I think working with >> toggle_iflims.m is best. If, on the other hand, you are only interested in >> minimizing cost in one area, with the dispatches fixed in other areas, then >> I think fixing those disp

Re: Run OPF with area interchange specified

2013-12-01 Thread Aftognosia Aftognosia
schedules? If so, yes, I think working with >toggle_iflims.m is best. If, on the other hand, you are only interested in >minimizing cost in one area, with the dispatches fixed in other areas, then I >think fixing those dispatches (PG=PMIN=PMAX) is sufficient to fix all of the >interfac

Re: Run OPF with area interchange specified

2013-11-27 Thread Shri
If, on the other hand, you are only interested in > minimizing cost in one area, with the dispatches fixed in other areas, then I > think fixing those dispatches (PG=PMIN=PMAX) is sufficient to fix all of the > interface flows as well and you don’t even need additional interface flow >

Re: Run OPF with area interchange specified

2013-11-27 Thread Hamed Pourgharibshahi
orking with > toggle_iflims.m is best. If, on the other hand, you are only interested in > minimizing cost in one area, with the dispatches fixed in other areas, then > I think fixing those dispatches (PG=PMIN=PMAX) is sufficient to fix all of > the interface flows as well and you don’t even ne

Re: Run OPF with area interchange specified

2013-11-27 Thread Ray Zimmerman
I suppose it depends … do you want to minimize costs in the other areas as well, subject to fixed exchange schedules? If so, yes, I think working with toggle_iflims.m is best. If, on the other hand, you are only interested in minimizing cost in one area, with the dispatches fixed in other areas

Re: Run OPF with area interchange specified

2013-11-26 Thread Henry Lin
Dear Dr. Zimmerman, Thanks a lot for your help. I want to minimize the cost of generation of one area subject to a fixed value for the exchange between all the other areas. Shall I still work with toggle_iflims.m as you suggested or you have some other suggestions? Thanks a lot. Best, Henry

Re: Run OPF with area interchange specified

2013-11-26 Thread Ray Zimmerman
Thanks a lot > > Lin > > On Nov 25, 2013, at 8:59, Henry Lin wrote: > >> Dear all, >> >> I am trying to use OPF with area interchange being specified. I know how >> much power is going to be import and export. >> >> How can I do it using Matpower? >> >> >> Thanks, >> Henry > > > >

Re: Run OPF with area interchange specified

2013-11-26 Thread
Hi Matpower users, Anybody have any ideas about how to calculate opf with the total import power and export power specified? Thanks a lot Lin On Nov 25, 2013, at 8:59, Henry Lin wrote: > Dear all, > > I am trying to use OPF with area interchange being specified. I know

Run OPF with area interchange specified

2013-11-25 Thread Henry Lin
Dear all, I am trying to use OPF with area interchange being specified. I know how much power is going to be import and export. How can I do it using Matpower? Thanks, Henry