If you have information about the boundaries of the control areas then you can set the appropriate information in column 7 of the bus data and divide the areas. I am assuming, however, in your case that you do not have that information and are looking for a criterion to create the areas. I don't know how this can be done unless one knows the topology of the system (perhaps by looking at line ratings?). One way to "create" areas (sub-networks) is by using graph partitioning. The areas created by graph partitioning may not align with the actual control area boundaries, but it would have a clustered set of buses (which is what you want I think). MATPOWER does not have support for graph partitioning so you'll have to use some graph partitioner like Metis, Chaco, or ptscotch to do the partitioning. I am not sure if these packages have a Matlab interface. There are other packages/scripts for graph partitioning in Matlab (google 'graph partition Matlab), you can try out these too.
Shri From: Gelli Ravikumar <[email protected]<mailto:[email protected]>> Reply-To: MATPOWER discussion forum <[email protected]<mailto:[email protected]>> Date: Tue, 28 Oct 2014 07:13:23 +0530 To: MATPOWER discussion forum <[email protected]<mailto:[email protected]>> Subject: Re: How to decouple case data into multi areas in MatPower Dear Abhilash, Thanks for your response. Yes, I aware of the column 7 that specifies the notation "area". But, my question is about not doing it manually for every case system. If we come up with some cut-sets upon the system, then we can apply the same for other case system for an application. This automatic approach facilitates validating the application with different case systems. However, the logic for cut-sets may vary with respect to an application. So, with For example, as mentioned in the paper, the application considered is "'Multi-area State Estimation". Now, If I would able to define some rules to discover cut-sets (might be through tie lines - the lines where two networks connect together), then I can pass either case118 or any case as an input and get the areas. This systematic leads to test the multi-area state estimation code across other systems. Hope you got my question now. Please, let me know if there is a provision for developing such a converter, where it takes case data as an input and outputs the case data with multi-areas (may be the column 7 updated). -- with Regards ---------------------------------------------------- Gelli Ravikumar Research Scholar (Ph.D), Field Computations Lab, Dept. of Electrical Engineering, IIT Bombay, Powai, Mumbai 400076 Ph: 022-2576 4424, 089 765 983 96 Gandhian Young Technological Innovation Award - 2013 POSOCO Power System Award: PPSA - 2013 IITB PhD Executive Member - 2013-14 IITB SARC Core Technical Member - 2014-15 On Tue, Oct 28, 2014 at 6:52 AM, Abhilash Kantamneni <[email protected]<mailto:[email protected]>> wrote: Gelli, I am afraid that the question you are asking might be rather trivial. You can model the entire system and specify individual areas (refer to Matpower User Manual, Appendix Data Format<http://www.pserc.cornell.edu/matpower/manual.pdf>). In Table B1, you will see that the column 7 lets you specify which area you want those particular buses to be in. I hope this helps. Abhilash (Abhi) Kantamneni A Rather Nice Guy, PhD Student, Department of CS, Engineer, Keweenaw Research Center, Michigan Tech 906 231 4208
