First time here? We are a friendly community of Power Systems Engineers. Check out the FAQ!

Ask Your Question
0

Are exciter stabilizer and governor models necessary for dynamic simulation?

asked Oct 20 '4

Uzair gravatar image

I have to do transient stability analysis and my .dyr file is exceeding the STATE variables limit as I have the limited version so can I do my simulation by removing exciter governor or stabilizer models or they all are necessary.

Comments

Based on your purpose actually, if you don't need to observe the performance of SG, then in my opinion, you could remove these three type of model.

YKC gravatar imageYKC (Oct 21 '4)

2 answers

Sort by » oldest newest most voted
0

answered Oct 25 '4

perolofl gravatar image

For transient stability simulations (i.e. short circuits) you could reduce the dynamic model in the following order:

1 Remove governor models

2 Remove stabiliser models

3 Remove exciter models

Remove until the number of STATEs are within the limit. Start removing for small machines, e.g. remove exciter for small machines until the number of STATEs are ok. But, as @jconto wrote, keep exciters for generators close to the disturbance (short circuit).

link
1

answered Oct 24 '4

jconto gravatar image

Exciters provide an insight on how the generator respond to voltage disturbances, governors do the same for frequency events. To remove them is to lose those dynamic behavior responses.

For a limited size PSSe version, remove models from generators (or GNET them) 'far away' from the study area where the fault/test is applied. Consider switching to a small-size network to perform your tests.

link

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.
Want to format code in your answer? Here is a one minute demo on Youtube

Add Answer

[hide preview]

Question Tools

1 follower

Stats

Asked: Oct 20 '4

Seen: 205 times

Last updated: Oct 25 '24