First time here? We are a friendly community of Power Systems Engineers. Check out the FAQ!
I am running the rocof model named DLSHBL. The formula of rocof is (f2-f1)/(t2-t1) ,or it can be shown as (delta f / delta t) . However, I do not know how long is the length of the delta t. Thanks for all your help. P.S. my solution parameters : Iterations=25 Acceleration=0.5 Tolerance=0.01 DELT=0.0002
PSS/E calculates RoCoF as (f2-f1)/(t2-t1) and then passes it through a low pass filter with a time constant of 0.04 (default).
Here t2-t1 is actually DELT. So, in your case, t2-t1 = 0.0002.
I understand your point. Thank you very much.
The frequency filter time constant is shown in "Dynamic Solution Parameters".
Asked: Feb 19 '5
Seen: 107 times
Last updated: Feb 19
whit loves you. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
