Regards OPF result for the system of nine nodes ($ 5,296.69 / h), it considers only the missing I^2*Z? Thanks
Date: Mon, 28 Apr 2014 09:32:01 -0500 Subject: Re: Reactive Losses Power Flow From: [email protected] To: [email protected] If your are running ACPF simply change that value and the limits: from: 39 1000 78.4674 300 -100 1.03 100 1 1100 0 0 0 0 0 0 0 0 0 0 0 0; to: 39 500 78.4674 300 -100 1.03 100 1 500 0 0 0 0 0 0 0 0 0 0 0 0; Those 500MW will be generated by the slack bus. 2014-04-12 12:53 GMT-05:00 Mahmoud Abdallah <[email protected]>: 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 MWI wish to make it generate only 500 MW thank you in advance Eng. Mahmoud abdallah Teaching Assistant Ain Shams University Faculty of Engineering On Friday, April 11, 2014 6:19 AM, Ray Zimmerman <[email protected]> wrote: I assume you are referring to the “System Summary” part of the MATPOWER output?================================================================================ | System Summary |================================================================================ How many? How much? P (MW) Q (MVAr) --------------------- ------------------- ------------- -----------------Buses 9 Total Gen Capacity 820.0 -900.0 to 900.0 Generators 3 On-line Capacity 820.0 -900.0 to 900.0Committed Gens 3 Generation (actual) 320.0 34.9Loads 3 Load 315.0 115.0 Fixed 3 Fixed 315.0 115.0 Dispatchable 0 Dispatchable -0.0 of -0.0 -0.0 Shunts 0 Shunt (inj) -0.0 0.0Branches 9 Losses (I^2 * Z) 4.95 51.31 Transformers 0 Branch Charging (inj) - 131.4Inter-ties 0 Total Inter-tie Flow 0.0 0.0 Areas 1If so, please notice that series losses and the branch charging are listed separately. So the total reactive loss in the line is the series loss minus the branch charging injection. Ray -- Ray ZimmermanSenior Research AssociateB30 Warren Hall, Cornell University, Ithaca, NY 14853phone: (607) 255-9645 On Apr 10, 2014, at 5:59 PM, Angie Joaqui Rendon <[email protected]> wrote: RegardsI am working with the module of power flow, and i want know if the reactive losses that shows me the program considers the capacitive effects of the lines?. I am comparing results with other malingerers and these do not coincide with some results that gives me MATPOWER, and differ for the lines that possess a high capacitive value. I appreciate the information that you can give me.
