| System Summary
|================================================================================How
many? How much? P (MW) Q
(MVAr)--------------------- ------------------- -------------
-----------------Buses 9 Total Gen Capacity 820.0
-900.0 to 900.0Generators 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 -0.0Shunts
0 Shunt (inj) -0.0 0.0Branches
9 Losses (I^2 * Z) 4.95 51.31Transformers 0
Branch Charging (inj) - 131.4Inter-ties 0 Total
Inter-tie Flow 0.0 0.0Areas 1
The losses are listed separately, I want to know if OPF's result for the 9
nodes system ($ 5,296.69 / h), includes both losses or only a type of losses?
From: [email protected]
Subject: Re: Reactive Losses Power Flow
Date: Fri, 2 May 2014 16:26:22 -0400
To: [email protected]
Could you clarify the question?
Ray
On May 2, 2014, at 1:12 PM, Angie Joaqui Rendon <[email protected]>
wrote: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 sirI 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 advanceEng. 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 900.0Generators 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 -0.0Shunts
0 Shunt (inj) -0.0 0.0Branches
9 Losses (I^2 * Z) 4.95 51.31Transformers 0
Branch Charging (inj) - 131.4Inter-ties 0 Total
Inter-tie Flow 0.0 0.0Areas 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) 255-9645On 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.
